Area code 309 is in Illinois, USA , spanning 20 counties and serving 202 cities , including Peoria, Bloomington or Normal; it currently uses 781 prefixes , assigned from 309-200-XXXX through 309-999-XXXX.
In service since January 01, 1957, area code 309 is the parent Numbering Plan Area in overlay complex 309/861.
Citizens Telecom Co Illinois-Frontier Citizens -IL
Cordova
N/A
309-228
Itv-3
Farmington
10/16/2002
309-229
AT&T
Peoria
N/A
309-230
Cellco Partnership
Rock Island
12/14/2001
309-231
United States Cellular
Peoria
N/A
309-232
United States Cellular
Peoria
N/A
309-233
Teleport Communications America
Manito
1/10/2017
309-234
Frontier Communications Of Orion
Orion
N/A
309-235
Cellco Partnership
Rock Island
N/A
309-236
Cellco Partnership
Rock Island
N/A
309-237
New Cingular Wireless PCS
Bushnell
N/A
309-238
Cellco Partnership
Wyoming
N/A
309-239
Telnyx
Bloomington
12/10/2019
309-240
Itv-3
Dunlap
10/16/2002
309-241
Cellco Partnership
Southpekin
N/A
309-242
MetroPCS
Bloomington
N/A
309-243
Frontier North
Dunlap
N/A
309-244
Illinois Bell Tel Co
Delavan
N/A
309-245
Illinois Bell Tel Co
Farmington
N/A
309-246
Brightspeed Of Illinois
Lacon
N/A
309-247
Illinois Bell Tel Co
San Jose
N/A
309-248
Frontier North
Washburn
N/A
309-249
Frontier North
Edelstein
N/A
309-250
Itv-3
Edelstein
10/16/2002
309-251
United States Cellular
Peoria
N/A
309-252
Cellco Partnership
Macomb
N/A
309-253
Cellco Partnership
Peoria
N/A
309-254
Mcdonough Tel. Coop.
Industry
N/A
309-255
Cellco Partnership
Macomb
N/A
309-256
Cellco Partnership
Peoria
N/A
309-257
Mcdonough Tel. Coop.
Littleton
N/A
309-258
Cellco Partnership
Peoria
N/A
309-259
Onvoy Spectrum
Macomb
N/A
309-260
Onvoy
Bloomington
8/5/2021
309-261
MetroPCS
Bloomington
N/A
309-262
T-Mobile USA
Bloomington
N/A
309-263
Frontier North
Morton
N/A
309-264
Cellco Partnership
Peoria
N/A
309-265
Cellco Partnership
Peoria
N/A
309-266
Frontier North
Morton
N/A
309-267
United States Cellular
Pekin
N/A
309-268
Frontier North
Bloomington
N/A
309-269
T-Mobile USA
Rock Island
N/A
309-270
Itv-3
Chillicoth
10/16/2002
309-271
Onvoy
Peoria
9/21/2017
309-272
Skye Telecom
Peoria
N/A
309-273
Level 3 Communications
Peoria
N/A
309-274
Frontier North
Chillicoth
N/A
309-275
MetroPCS
Bloomington
N/A
309-276
Level 3 Communications
Peoria
N/A
309-277
Paetec Itel
Moline
N/A
309-278
Paetec Itel
East Moline
N/A
309-279
Level 3 Communications
Peoria
N/A
309-280
Onvoy
Peoria
10/27/2017
309-281
Mediacom Telephony Of Illinois
East Moline
3/9/2010
309-282
Paetec Itel
Peoria
N/A
309-283
Paetec Itel
Rock Island
N/A
309-284
Frontier North
Morton
N/A
309-285
Level 3 Communications
Peoria
N/A
309-286
Frontier North
Toulon
N/A
309-287
MetroPCS
Bloomington
N/A
309-288
Frontier North
Mineral
N/A
309-289
Brightspeed Of Illinois
Knoxville
N/A
309-290
Itv-3
Mineral
10/16/2002
309-291
Itv-3
Morton
10/16/2002
309-292
T-Mobile USA
Rock Island
N/A
309-293
Mid Century Tel. Coop.
Ellisville
N/A
309-294
Level 3 Communications
Peoria
N/A
309-295
Frontier North
Macomb
N/A
309-296
Level 3 Communications
Peoria
N/A
309-297
Skye Telecom
Galesburg
N/A
309-298
Frontier North
Macomb
N/A
309-299
T-Mobile USA
Galesburg
N/A
309-300-XXXX --- 309-399-XXXX
NPANXX
Carrier1
Area Served2
Date3
309-300
Cellco Partnership
Southpekin
4/26/2011
309-301
Itv-3
Toulon
10/16/2002
309-302
MCIMetro Access Transmission Services
Hampton
5/2/2006
309-303
T-Mobile USA
Peoria
2/25/2002
309-304
Frontier North
Eureka
10/14/2004
309-305
Centurylink Communications
Minier-Armington
N/A
309-306
Peerless Network Of Illinois
Peoria
6/14/2011
309-307
Nuso
Bloomington
3/13/2013
309-308
Nuso
Peoria
3/13/2013
309-309
Onvoy
Washington
9/26/2022
309-310
MetroPCS
Bloomington
N/A
309-312
Onvoy
Kewanee
N/A
309-313
MCIMetro Access Transmission Services
Macomb
N/A
309-314
T-Mobile USA
Moline
N/A
309-315
Centurylink Communications
Galesburg
3/5/2014
309-316
Onvoy
Delavan
3/20/2017
309-317
New Cingular Wireless PCS
Rock Island
11/14/2017
309-318
MetroPCS
Macomb
9/12/2003
309-319
MCIMetro Access Transmission Services
Bloomington
6/17/2004
309-320
Telnyx
Cameron
2/14/2019
309-321
Level 3 Communications
Morton
9/19/2003
309-322
Bandwidth.com Clec
Peoria
12/6/2017
309-323
Bandwidth.com Clec
Peoria
9/22/2010
309-324
Exiant Communications
Peoria
2/23/2018
309-325
Mcdonough Tel. Coop.
Smithshire
N/A
309-326
Teleport Communications America
Canton
12/17/2009
309-327
Vonage America
Peoria
3/13/2018
309-328
Bandwidth.com Clec
North Pekin
3/22/2018
309-329
Frontier North
Astoria
N/A
309-330
Itv-3
Havana
11/16/2004
309-331
United States Cellular
Macomb
N/A
309-332
Vonage America
Stanford
8/1/2018
309-333
United States Cellular
Macomb
N/A
309-334
Woodhull Community Tel. Co.
Woodhull
N/A
309-335
Cellco Partnership
Galesburg
N/A
309-336
MetroPCS
Bloomington
11/10/2003
309-337
United States Cellular
Galesburg
N/A
309-338
Cellco Partnership
Canton
N/A
309-339
Cellco Partnership
Peoria
N/A
309-340
T-Mobile USA
Peoria
10/20/2010
309-341
Brightspeed Of Illinois
Galesburg
N/A
309-342
Brightspeed Of Illinois
Galesburg
N/A
309-343
Brightspeed Of Illinois
Galesburg
N/A
309-344
Brightspeed Of Illinois
Galesburg
N/A
309-345
Brightspeed Of Illinois
Galesburg
N/A
309-346
Brightspeed Of Illinois
Pekin
N/A
309-347
Brightspeed Of Illinois
Pekin
N/A
309-348
Brightspeed Of Illinois
Southpekin
N/A
309-349
Itv-3
Pekin
6/5/2007
309-350
T-Mobile USA
Rock Island
6/12/2018
309-351
Cellco Partnership
Galesburg
N/A
309-352
Brightspeed Of Illinois
Green Valley
N/A
309-353
Brightspeed Of Illinois
Pekin
N/A
309-354
Itv-3
Mackinaw
10/16/2002
309-355
Mediacom Telephony Of Illinois
Gridley
5/10/2019
309-356
Itv-3
Henry
10/16/2002
309-357
Cellco Partnership
Canton
N/A
309-358
Mid Century Tel. Coop.
Yates City
N/A
309-359
Frontier North
Mackinaw
N/A
309-360
Cellco Partnership
Peoria
N/A
309-361
New Cingular Wireless PCS
Peoria
N/A
309-362
Illinois Bell Tel Co
Trivoli
N/A
309-363
New Cingular Wireless PCS
Peoria
N/A
309-364
Frontier North
Henry
N/A
309-365
Frontier North
Lexington
N/A
309-366
Metamora Tel. Co.
Metamora
N/A
309-367
Metamora Tel. Co.
Metamora
N/A
309-368
Cellco Partnership
Galesburg
N/A
309-369
Cellco Partnership
Peoria
N/A
309-370
Cellco Partnership
Peoria
N/A
309-371
United States Cellular
Galesburg
N/A
309-372
Reynolds Tel. Co.
Reynolds
N/A
309-373
United States Cellular
Rock Island
N/A
309-374
Citizens Telecom Co Illinois-Frontier Citizens -IL
Keithsburg
N/A
309-375
Brightspeed Of Illinois
Wataga
N/A
309-376
Frontier North
Carlock
N/A
309-377
Frontier North
Cropsey
N/A
309-378
Frontier North
Downs
N/A
309-379
Frontier North
Stanford
N/A
309-380
MCIMetro Access Transmission Services
Rock Island
06/26/2024
309-381
Vonage America
Galesburg
9/30/2019
309-382
Brightspeed Of Illinois
North Pekin
N/A
309-383
Metamora Tel. Co.
Germantown Hills
N/A
309-384
Onvoy
Edelstein
7/28/2021
309-385
Frontier North
Princevl
N/A
309-386
Onvoy
Bloomington
4/22/2016
309-387
Frontier North
Groveland
N/A
309-388
Comcast IP Phone
Knoxville
6/3/2008
309-389
Glasford Tel. Co.
Glasford
N/A
309-390
Leap Telecom
Peoria
09/19/2024
309-391
Peerless Network Of Illinois
Bloomington
10/30/2019
309-392
Frontier North
Minier-Armington
N/A
309-393
Itv-3
Benson
N/A
309-394
Frontier North
Benson
N/A
309-395
Itv-3
Groveland
10/16/2002
309-396
Itv-3
Princevl
10/16/2002
309-397
Cellco Partnership
Peoria
N/A
309-398
Itv-3
La Rose
10/16/2002
309-399
Frontier North
La Rose
N/A
309-400-XXXX --- 309-499-XXXX
NPANXX
Carrier1
Area Served2
Date3
309-400
AT&T Enterprises
Rock Island
10/14/2024
309-401
Level 3 Communications
Peoria
N/A
309-402
Level 3 Communications
Peoria
N/A
309-403
Level 3 Communications
Peoria
N/A
309-404
Level 3 Communications
Peoria
N/A
309-405
Level 3 Communications
Peoria
N/A
309-406
Level 3 Communications
Peoria
N/A
309-407
Level 3 Communications
Peoria
N/A
309-408
Level 3 Communications
Peoria
N/A
309-409
Level 3 Communications
Peoria
N/A
309-410
Level 3 Communications
Peoria
N/A
309-412
Level 3 Communications
Peoria
N/A
309-413
Level 3 Communications
Peoria
N/A
309-414
Level 3 Communications
Peoria
N/A
309-415
Level 3 Communications
Peoria
N/A
309-416
Level 3 Communications
Peoria
N/A
309-417
Level 3 Communications
Peoria
N/A
309-418
Level 3 Communications
Peoria
N/A
309-419
Level 3 Communications
Peoria
N/A
309-420
Level 3 Communications
Peoria
N/A
309-421
Comcast IP Phone
Macomb
5/27/2008
309-422
Level 3 Communications
Peoria
N/A
309-423
Level 3 Communications
Peoria
N/A
309-424
Cellco Partnership
Peoria
N/A
309-425
AT&T Enterprises
Fiatt
12/21/2011
309-426
Citizens Telecom Co Illinois-Frontier Citizens -IL
Roseville
N/A
309-427
Illinois Bell Tel Co
Peoria
N/A
309-428
T-Mobile USA
Rock Island
9/8/2008
309-429
Cellco Partnership
Rock Island
8/11/2011
309-430
Geneseo Communications Services
Rock Island
3/9/2015
309-431
Level 3 Communications
Peoria
N/A
309-432
Frontier North
Minonk
N/A
309-433
Skye Telecom
Bloomington
N/A
309-434
Frontier North
Bloomington
N/A
309-435
AT&T Enterprises
Canton
9/17/2010
309-436
Frontier North
Bloomington
N/A
309-437
Level 3 Communications
Peoria
N/A
309-438
Frontier North
Bloomington
N/A
309-439
Level 3 Communications
Peoria
N/A
309-440
Itv-3
Deer Creek
10/16/2002
309-441
Geneseo Tel. Co.
Green River
N/A
309-442
Itv-3
Brimfield
10/16/2002
309-443
Frontier North
Low Point
N/A
309-444
Frontier North
Washington
N/A
309-445
Teleport Communications America
Bloomington
6/10/2009
309-446
Frontier North
Brimfield
N/A
309-447
Frontier Communications Of The Carolinas
Deer Creek
N/A
309-448
Frontier Communications Of The Carolinas
Congerville
N/A
309-449
Frontier North
Hopedale
N/A
309-450
Itv-3
Congerville
10/16/2002
309-451
Frontier North
Bloomington
N/A
309-452
Frontier North
Bloomington
N/A
309-453
MetroPCS
Peoria
N/A
309-454
Frontier North
Bloomington
N/A
309-455
Itv-3
Hopedale
10/16/2002
309-456
Mcdonough Tel. Coop.
Good Hope
N/A
309-457
Citizens Telecom Co Illinois-Frontier Citizens -IL
Monmouth
N/A
309-458
Adams Tel. Coop.
Plymouth
N/A
309-459
MCIMetro Access Transmission Services
Bloomington
12/12/2019
309-460
Itv-3
Low Point
10/16/2002
309-461
Itv-3
Minonk
10/16/2002
309-462
Citizens Telecom Co Illinois-Frontier Citizens -IL
Abingdon
N/A
309-463
Frontier North
Varna
N/A
309-464
Citizens Telecom Co Illinois-Frontier Citizens -IL
North Henderson
N/A
309-465
Brightspeed Of Illinois
Avon
N/A
309-466
Itv-3
Eureka
10/16/2002
309-467
Frontier North
Eureka
N/A
309-468
Level 3 Communications
Le Roy
7/17/2002
309-469
Frontier North
Sparland
N/A
309-470
Illinois Bell Tel Co
Peoria
N/A
309-471
Itv-3
Sparland
N/A
309-472
MetroPCS
Peoria
N/A
309-473
Frontier North
Heyworth
N/A
309-474
Itv-3
Varna
10/16/2002
309-475
Frontier North
Saybrook
N/A
309-476
Citizens Telecom Co Illinois-Frontier Citizens -IL
Andover
N/A
309-477
Brightspeed Of Illinois
Pekin
N/A
309-478
Brightspeed Of Illinois
Pekin
N/A
309-479
Frontier North
Castleton
N/A
309-480
Itv-3
Castleton
10/16/2002
309-481
Itv-3
Washington
10/16/2002
309-482
Citizens Telecom Co Illinois-Frontier Citizens -IL
Alexis
N/A
309-483
Oneida Tel. Exch.
Oneida
N/A
309-484
Mid Century Tel. Coop.
Altona
N/A
309-485
Mediacom Telephony Of Illinois
Hudson
1/2/2003
309-486
Citizens Telecom Co Illinois-Frontier Citizens -IL
London Mills
N/A
309-487
Mediacom Telephony Of Illinois
Downs
1/2/2003
309-488
Mediacom Telephony Of Illinois
Farmer City
1/2/2003
309-489
T-Mobile USA
Geneseo
10/21/2003
309-490
Mediacom Telephony Of Illinois
Lexington
1/2/2003
309-491
Mediacom Telephony Of Illinois
Mc Lean
1/2/2003
309-492
Itv-3
Camp Grove
10/16/2002
309-493
Frontier North
Camp Grove
N/A
309-494
Illinois Bell Tel Co
Peoria
N/A
309-495
Illinois Bell Tel Co
Peoria
N/A
309-496
Citizens Telecom Co Illinois-Frontier Citizens -IL
Hampton
N/A
309-497
Illinois Bell Tel Co
Peoria
N/A
309-498
Mediacom Telephony Of Illinois
Heyworth
1/2/2003
309-499
Mediacom Telephony Of Illinois
Le Roy
1/2/2003
309-500-XXXX --- 309-599-XXXX
NPANXX
Carrier1
Area Served2
Date3
309-500
New Cingular Wireless PCS
Summum
8/25/2021
309-501
T-Mobile USA
Washington
1/2/2003
309-502
T-Mobile USA
Geneseo
1/16/2003
309-503
Mediacom Telephony Of Illinois
Towanda
11/22/2004
309-504
Ymax Communications Corp.
Danvers
11/23/2004
309-505
Itv-3
Sunnyland
1/17/2003
309-506
T-Mobile USA
Rock Island
10/4/2018
309-507
United States Cellular
Geneseo
N/A
309-508
Mtco Communications
Metamora
12/9/2004
309-509
Cellco Partnership
Galesburg
8/30/2004
309-510
Cellco Partnership
Peoria
6/15/2016
309-512
Centurylink Communications
Peoria
5/11/2016
309-513
Citizens Telecom Co Illinois-Frontier Citizens -IL
Aledo
10/28/2016
309-514
Mediacom Telephony Of Illinois
Albany
12/16/2004
309-515
Mediacom Telephony Of Illinois
Erie
12/16/2004
309-516
Centurylink Communications
Kilbourne
8/4/2016
309-517
Level 3 Communications
Moline
N/A
309-518
Level 3 Communications
Lewistown
6/23/2004
309-519
New Cingular Wireless PCS
Rock Island
10/10/2018
309-520
T-Mobile USA
Rock Island
1/4/2019
309-521
Cambridge Tel. Co.
Andover
N/A
309-522
Cambridge Tel. Co.
Osco
N/A
309-523
Citizens Telecom Co Illinois-Frontier Citizens -IL
Port Byron
N/A
309-524
Illinois Bell Tel Co
Moline
N/A
309-525
United States Cellular
Kewanee
N/A
309-526
Frontier Communications Of Orion
Orion
N/A
309-527
Consolidated Communications Of Central Illinois
El Paso
N/A
309-528
American Messaging Services
Bloomington
N/A
309-529
Citizens Telecom Co Illinois-Frontier Citizens -IL
Alpha
N/A
309-530
New Cingular Wireless PCS
Bloomington
N/A
309-531
New Cingular Wireless PCS
Bloomington
N/A
309-532
New Cingular Wireless PCS
Bloomington
N/A
309-533
New Cingular Wireless PCS
Bloomington
N/A
309-534
Citizens Telecom Co Illinois-Frontier Citizens -IL
Preemption
N/A
309-535
Brightspeed Of Illinois
Topeka
N/A
309-536
Cellco Partnership
Monmouth
1/24/2003
309-537
Citizens Telecom Co Illinois-Frontier Citizens -IL
Eliza
N/A
309-538
Citizens Telecom Co Illinois-Frontier Citizens -IL
Kilbourne
N/A
309-539
Level 3 Communications
Hampton
5/20/2003
309-540
T-Mobile USA
Kewanee
7/30/2003
309-541
Onvoy
Galesburg
11/17/2015
309-542
Onvoy Spectrum
Mc Lean
1/24/2007
309-543
Brightspeed Of Illinois
Havana
N/A
309-544
Skye Telecom
Macomb
7/28/2003
309-545
Brightspeed Of Illinois
Talbott
N/A
309-546
Citizens Telecom Co Illinois-Frontier Citizens -IL
Bath
N/A
309-547
Illinois Bell Tel Co
Lewistown
N/A
309-548
MCC Telephony
Roseville
4/28/2006
309-549
Telnyx
Galesburg
12/17/2019
309-550
MCIMetro Access Transmission Services
Peoria
7/30/2003
309-551
Mediacom Telephony Of Illinois
Matherville
3/22/2005
309-552
Mediacom Telephony Of Illinois
Atkinson
12/9/2005
309-553
T-Mobile USA
Rock Island
1/4/2019
309-554
Mediacom Telephony Of Illinois
Lacon
12/9/2005
309-556
Frontier North
Bloomington
N/A
309-557
Frontier North
Bloomington
N/A
309-558
Illinois Bell Tel Co
Rock Island
N/A
309-559
Mediacom Telephony Of Illinois
Oquawka
5/4/2006
309-560
Teleport Communications America
Colfax
2/6/2020
309-561
MCIMetro Access Transmission Services
Peoria
2/10/2020
309-562
Cass Telephone Company
Easton
N/A
309-563
Brightspeed Of Illinois
Cameron
N/A
309-564
Mediacom Telephony Of Illinois
El Paso
11/22/2005
309-565
Illinois Bell Tel Co
Hanna City
N/A
309-566
Illinois Bell Tel Co
Peoria
N/A
309-567
MCIMetro Access Transmission Services
Peoria
N/A
309-568
Onvoy
Andover
5/16/2006
309-569
New Cingular Wireless PCS
Bushnell
2/20/2008
309-570
Stratus Networks
Peoria
3/3/2020
309-571
Telnyx
Peoria
12/13/2016
309-572
Frontier North
Mossville
N/A
309-573
Teleport Communications America
Peoria
N/A
309-574
Cellco Partnership
Aledo
7/28/2003
309-575
Mtc Communications
Macomb
12/1/2010
309-576
Frontier North
Mossville
N/A
309-577
Frontier North
Mossville
N/A
309-578
Frontier North
Mossville
N/A
309-579
Frontier North
Mossville
N/A
309-580
Itv-3
Mossville
10/16/2002
309-581
Teleport Communications America
Moline
6/27/2007
309-582
Citizens Telecom Co Illinois-Frontier Citizens -IL
Aledo
N/A
309-583
Comcast IP Phone
North Pekin
5/15/2008
309-584
Citizens Telecom Co Illinois-Frontier Citizens -IL
Joy
N/A
309-585
Comcast IP Phone
Bloomington
8/8/2007
309-586
Citizens Telecom Co Illinois-Frontier Citizens -IL
Seaton
N/A
309-587
Citizens Telecom Co Illinois-Frontier Citizens -IL
New Boston
N/A
309-588
Level 3 Communications
Macomb
7/21/2004
309-589
Illinois Bell Tel Co
Peoria
N/A
309-590
Onvoy
Bloomington
11/15/2018
309-591
New Cingular Wireless PCS
La Fayette
8/25/2021
309-592
New Cingular Wireless PCS
Rock Island
2/23/2017
309-593
Citizens Telecom Co Illinois-Frontier Citizens -IL
Sherrard
N/A
309-594
Frontier North
Neponset
N/A
309-595
Itv-3
Neponset
10/16/2002
309-596
Viola Home Tel. Co.
Viola
N/A
309-597
Brightspeed Of Illinois
Forest City
N/A
309-598
Level 3 Communications
Kirkwood
8/16/2005
309-599
MCC Telephony
London Mills
4/28/2006
309-600-XXXX --- 309-699-XXXX
NPANXX
Carrier1
Area Served2
Date3
309-600
Mediacom Telephony Of Illinois
Preemption
5/16/2006
309-601
Cs Technologies
Moline
3/5/2015
309-602
Onvoy
Sherrard
6/3/2010
309-603
Mediacom Telephony Of Illinois
Chillicoth
1/12/2010
309-604
Level 3 Communications
Farmington
3/12/2020
309-605
Centurylink Communications
Bath
8/4/2016
309-606
Level 3 Communications
Wyoming
4/3/2002
309-607
Cs Technologies
Rock Island
3/5/2015
309-608
Bandwidth.com Clec
San Jose
3/18/2020
309-609
MCC Telephony
Altona
12/9/2005
309-610
Onvoy
Forest City
9/20/2018
309-612
Csc Wireless
Bloomington
4/29/2020
309-613
T-Mobile USA
Pekin
4/17/2002
309-614
New Cingular Wireless PCS
Smithfield
5/6/2020
309-615
Csc Wireless
Peoria
6/26/2020
309-616
MCC Telephony
Willimsfld
12/9/2005
309-617
Onvoy
Dunlap
N/A
309-618
Onvoy Spectrum
Galva
10/5/2021
309-619
Stratus Networks
Chillicoth
7/8/2020
309-620
Cellco Partnership
Pekin
6/14/2007
309-621
New Cingular Wireless PCS
Peoria
N/A
309-622
Frontier North
Bloomington
3/20/2001
309-623
Twilio International
Moline
N/A
309-624
Illinois Bell Tel Co
Peoria
N/A
309-625
Mediacom Telephony Of Illinois
Aledo
3/22/2005
309-626
Mediacom Telephony Of Illinois
Orion
12/14/2004
309-627
Citizens Telecom Co Illinois-Frontier Citizens -IL
Biggsville
N/A
309-628
Level 3 Communications
Aledo
3/15/2006
309-629
Woodhull Community Tel. Co.
Alpha
N/A
309-630
New Cingular Wireless PCS
North Henderson
4/30/2021
309-631
T-Mobile USA
Rock Island
N/A
309-632
Stratus Networks
Delavan
7/10/2020
309-633
Illinois Bell Tel Co
Peoria
N/A
309-634
Illinois Bell Tel Co
Peoria
N/A
309-635
United States Cellular
Peoria
N/A
309-636
Illinois Bell Tel Co
Peoria
N/A
309-637
Illinois Bell Tel Co
Peoria
N/A
309-638
Stratus Networks
Galva
7/10/2020
309-639
Mid Century Tel. Coop.
Willimsfld
N/A
309-640
Onvoy
Havana
9/20/2018
309-641
Level 3 Communications
Morton
2/14/2002
309-642
MetroPCS
Pekin
N/A
309-643
AT&T Enterprises
Peoria
4/7/2005
309-644
Level 3 Communications
Rock Island
5/14/2002
309-645
United States Cellular
Peoria
N/A
309-646
USA Mobility Wireless
Peoria
N/A
309-647
Illinois Bell Tel Co
Canton
N/A
309-648
MetroPCS
Peoria
1/12/2001
309-649
Illinois Bell Tel Co
Canton
N/A
309-650
Onvoy
Pekin
9/21/2018
309-651
Mediacom Telephony Of Illinois
Yates City
N/A
309-652
Mcdonough Tel. Coop.
Blandinsville
N/A
309-653
Mcdonough Tel. Coop.
Adair
N/A
309-654
Citizens Telecom Co Illinois-Frontier Citizens -IL
Cordova
N/A
309-655
Illinois Bell Tel Co
Peoria
N/A
309-656
Stratus Networks
Southpekin
7/10/2020
309-657
Cellco Partnership
Peoria
N/A
309-658
Citizens Telecom Co Illinois-Frontier Citizens -IL
Hillsdale
N/A
309-659
Citizens Telecom Co Illinois-Frontier Citizens -IL
Erie
N/A
309-660
New Cingular Wireless PCS
Bloomington
N/A
309-661
Frontier North
Bloomington
N/A
309-662
Frontier North
Bloomington
N/A
309-663
Frontier North
Bloomington
N/A
309-664
Frontier North
Bloomington
N/A
309-665
Nuso
Bloomington
N/A
309-666
Fractel
Peoria
1/25/2019
309-667
New Windsor Tel. Co.
Newwindsor
N/A
309-668
Illinois Bell Tel Co
Canton
N/A
309-669
Illinois Bell Tel Co
Peoria
N/A
309-670
Itv-3
Peoria
10/16/2002
309-671
Illinois Bell Tel Co
Peoria
N/A
309-672
Illinois Bell Tel Co
Peoria
N/A
309-673
Illinois Bell Tel Co
Peoria
N/A
309-674
Illinois Bell Tel Co
Peoria
N/A
309-675
Illinois Bell Tel Co
Peoria
N/A
309-676
Illinois Bell Tel Co
Peoria
N/A
309-677
Illinois Bell Tel Co
Peoria
N/A
309-678
United States Cellular
Peoria
N/A
309-679
Illinois Bell Tel Co
Peoria
N/A
309-680
Illinois Bell Tel Co
Peoria
N/A
309-681
Illinois Bell Tel Co
Peoria
N/A
309-682
Illinois Bell Tel Co
Peoria
N/A
309-683
Illinois Bell Tel Co
Peoria
N/A
309-684
Teleport Communications America
Bloomington
N/A
309-685
Illinois Bell Tel Co
Peoria
N/A
309-686
Illinois Bell Tel Co
Peoria
N/A
309-687
Illinois Bell Tel Co
Peoria
N/A
309-688
Illinois Bell Tel Co
Peoria
N/A
309-689
Illinois Bell Tel Co
Peoria
N/A
309-690
Illinois Bell Tel Co
Peoria
N/A
309-691
Illinois Bell Tel Co
Peoria
N/A
309-692
Illinois Bell Tel Co
Peoria
N/A
309-693
Illinois Bell Tel Co
Peoria
N/A
309-694
Illinois Bell Tel Co
Peoria
N/A
309-695
Frontier North
Wyoming
N/A
309-696
Cellco Partnership
Peoria
N/A
309-697
Illinois Bell Tel Co
Peoria
N/A
309-698
Illinois Bell Tel Co
Peoria
N/A
309-699
Illinois Bell Tel Co
Peoria
N/A
309-701-XXXX --- 309-799-XXXX
NPANXX
Carrier1
Area Served2
Date3
309-701
Stratus Networks
Spring Bay
7/10/2020
309-702
Itv-3
Wyoming
10/16/2002
309-703
MCC Telephony
Abingdon
6/6/2006
309-704
Stratus Networks
Trivoli
7/10/2020
309-705
Level 3 Communications
Roseville
8/16/2005
309-706
MetroPCS
Bloomington
1/17/2002
309-707
Mediacom Telephony Of Illinois
Cambridge
12/9/2005
309-708
Onvoy
Minier-Armington
06/26/2023
309-709
Stratus Networks
Manito
7/14/2020
309-710
Mediacom Telephony Of Illinois
Annawan
12/9/2005
309-712
United States Cellular
Peoria
10/16/2001
309-713
Comcast IP Phone
Peoria
N/A
309-714
Cellco Partnership
Geneseo
3/19/2002
309-715
Mtc Communications
Monmouth
1/21/2015
309-716
New Cingular Wireless PCS
East Moline
1/10/2005
309-717
Level 3 Communications
Sunnyland
2/14/2002
309-718
Stratus Networks
Bloomington
7/15/2020
309-719
Stratus Networks
Galesburg
7/22/2020
309-720
Mediacom Telephony Of Illinois
Sherrard
10/29/2001
309-721
T-Mobile USA
Rock Island
3/16/2001
309-722
Frontier North
Bellflower
N/A
309-723
Frontier North
Colfax
N/A
309-724
Frontier North
Ellsworth
N/A
309-725
Frontier Communications Of Illinois
Cooksville
N/A
309-726
Frontier North
Hudson
N/A
309-727
Frontier North
Arrowsmith
N/A
309-728
Frontier Communications Of Illinois
Towanda
N/A
309-729
Citizens Telecom Co Illinois-Frontier Citizens -IL
Little York
N/A
309-730
Nuso
Macomb
10/22/2024
309-731
Level 3 Communications
Macomb
3/8/2005
309-732
Illinois Bell Tel Co
Rock Island
N/A
309-733
Level 3 Communications
Groveland
8/19/2002
309-734
Citizens Telecom Co Illinois-Frontier Citizens -IL
Monmouth
N/A
309-735
MCIMetro Access Transmission Services
Bloomington
N/A
309-736
Illinois Bell Tel Co
Moline
N/A
309-737
United States Cellular
Rock Island
N/A
309-738
United States Cellular
Rock Island
N/A
309-739
Itv-3
Secor
10/16/2002
309-740
Level 3 Communications
Peoria
5/7/2002
309-741
Itv-3
Elmwood
10/16/2002
309-742
Frontier North
Elmwood
N/A
309-743
Illinois Bell Tel Co
Moline
N/A
309-744
Frontier Communications Of The Carolinas
Secor
N/A
309-745
Frontier North
Sunnyland
N/A
309-746
Mcdonough Tel. Coop.
Raritan
N/A
309-747
Gridley Tel. Co.
Gridley
N/A
309-748
Illinois Bell Tel Co
East Moline
N/A
309-749
Illinois Bell Tel Co
East Moline
N/A
309-750
T-Mobile USA
Bloomington
6/10/2002
309-751
Illinois Bell Tel Co
East Moline
N/A
309-752
Illinois Bell Tel Co
East Moline
N/A
309-753
Illinois Bell Tel Co
Ipava
N/A
309-754
Citizens Telecom Co Illinois-Frontier Citizens -IL
Matherville
N/A
309-755
Illinois Bell Tel Co
East Moline
N/A
309-756
Illinois Bell Tel Co
Rock Island
N/A
309-757
Illinois Bell Tel Co
Moline
N/A
309-758
Mid Century Tel. Coop.
Tablegrove
N/A
309-759
Mid Century Tel. Coop.
Summum
N/A
309-760
Level 3 Communications
Monmouth
8/16/2005
309-761
Level 3 Communications
Kewanee
5/21/2001
309-762
Illinois Bell Tel Co
Moline
N/A
309-763
MCIMetro Access Transmission Services
Bloomington
N/A
309-764
Illinois Bell Tel Co
Moline
N/A
309-765
Illinois Bell Tel Co
East Moline
N/A
309-766
MCIMetro Access Transmission Services
Bloomington
N/A
309-767
Level 3 Communications
Kewanee
4/3/2002
309-768
Citizens Telecom Co Illinois-Frontier Citizens -IL
Kirkwood
N/A
309-769
Mcdonough Tel. Coop.
Bardolph
N/A
309-770
Frontier North
Wyoming
5/21/2001
309-771
Mediacom Telephony Of Illinois
Hillsdale
10/26/2001
309-772
Frontier North
Bushnell
N/A
309-773
Stratus Networks
Hampton
7/28/2020
309-774
Mcdonough Tel. Coop.
Swan Creek
N/A
309-775
Frontier North
Prairie Cy
N/A
309-776
Mcdonough Tel. Coop.
Colchester
N/A
309-777
Peerless Network Of Illinois
Ipava
2/25/2015
309-778
Mid Century Tel. Coop.
Fairview
N/A
309-779
Illinois Bell Tel Co
Rock Island
N/A
309-780
Onvoy
Talbott
9/21/2018
309-781
Cellco Partnership
Rock Island
N/A
309-782
Illinois Bell Tel Co
Rock Island
N/A
309-783
Mid Century Tel. Coop.
Smithfield
N/A
309-784
Frontier North
Vermont
N/A
309-785
Frontier North
Cuba
N/A
309-786
Illinois Bell Tel Co
Rock Island
N/A
309-787
Illinois Bell Tel Co
Rock Island
N/A
309-788
Illinois Bell Tel Co
Rock Island
N/A
309-789
Illinois Bell Tel Co
Fiatt
N/A
309-790
Onvoy
Topeka
9/21/2018
309-791
Illinois Bell Tel Co
Illinois City
N/A
309-792
Illinois Bell Tel Co
East Moline
N/A
309-793
Illinois Bell Tel Co
Rock Island
N/A
309-794
Illinois Bell Tel Co
Rock Island
N/A
309-795
Illinois Bell Tel Co
Edgington
N/A
309-796
Illinois Bell Tel Co
East Moline
N/A
309-797
Illinois Bell Tel Co
Moline
N/A
309-798
Illinois Bell Tel Co
Rock Island
N/A
309-799
Illinois Bell Tel Co
Moline
N/A
309-800-XXXX --- 309-899-XXXX
NPANXX
Carrier1
Area Served2
Date3
309-800
Onvoy
Lexington
06/03/2024
309-801
MCC Telephony
Stronghst
4/28/2006
309-802
HD Carrier
Peoria
8/11/2020
309-803
Nuso
Canton
8/13/2020
309-804
Stratus Networks
Seaton
9/17/2020
309-805
Stratus Networks
Rio
9/17/2020
309-806
Stratus Networks
Little York
9/17/2020
309-807
Level 3 Communications
Bloomington
6/14/2002
309-808
Comcast IP Phone
Bloomington
8/25/2006
309-809
Mediacom Telephony Of Illinois
Reynolds
1/12/2006
309-810
Onvoy Spectrum
Peoria
10/23/2019
309-812
Stratus Networks
Carlock
9/17/2020
309-813
Stratus Networks
Bellflower
9/17/2020
309-814
Mediacom Telephony Of Illinois
Glasford
10/29/2001
309-815
Onvoy
Stanford
06/26/2023
309-816
Ip Horizon
Monmouth
9/18/2020
309-817
MCC Telephony
Maquon
4/28/2006
309-818
Itv-3
Bloomington
10/16/2002
309-819
Frontier North
Sunnyland
5/21/2001
309-820
Frontier North
Bloomington
N/A
309-821
Frontier North
Bloomington
N/A
309-822
Illinois Bell Tel Co
Spring Bay
N/A
309-823
Frontier North
Bloomington
N/A
309-824
Cellco Partnership
Bloomington
N/A
309-825
New Cingular Wireless PCS
Bloomington
N/A
309-826
New Cingular Wireless PCS
Bloomington
N/A
309-827
Frontier North
Bloomington
N/A
309-828
Frontier North
Bloomington
N/A
309-829
Frontier North
Bloomington
N/A
309-830
Cellco Partnership
Bloomington
N/A
309-831
Frontier North
Bloomington
5/21/2001
309-832
Level 3 Communications
Abingdon
8/16/2005
309-833
Frontier North
Macomb
N/A
309-834
Level 3 Communications
Bloomington
5/21/2001
309-835
Ip Horizon
Peoria
9/30/2020
309-836
Frontier North
Macomb
N/A
309-837
Frontier North
Macomb
N/A
309-838
Cellco Partnership
Bloomington
N/A
309-839
Comcast IP Phone
Peoria
8/8/2007
309-840
Cellco Partnership
Southpekin
9/23/2002
309-841
Stratus Networks
Eliza
11/20/2020
309-842
Mediacom Telephony Of Illinois
Germantown Hills
2/7/2006
309-843
Mediacom Telephony Of Illinois
Alexis
10/26/2001
309-844
Commio
Peoria
11/4/2019
309-845
Mediacom Telephony Of Illinois
Osco
10/26/2001
309-846
Cellco Partnership
Bloomington
N/A
309-847
T-Mobile USA
Kewanee
9/4/2008
309-848
Mediacom Telephony Of Illinois
Port Byron
3/22/2005
309-849
Mediacom Telephony Of Illinois
Metamora
2/6/2006
309-850
Cellco Partnership
Illinois City
1/11/2021
309-851
Itv-3
Kewanee
10/16/2002
309-852
Frontier North
Kewanee
N/A
309-853
Frontier North
Kewanee
N/A
309-854
Frontier North
Kewanee
N/A
309-855
Mediacom Telephony Of Illinois
Fairview
5/3/2006
309-856
Frontier North
Kewanee
N/A
309-857
Onvoy
Peoria
4/6/2009
309-858
Stratus Networks
Biggsville
2/2/2021
309-859
Stratus Networks
Gulfport
2/2/2021
309-860
New Cingular Wireless PCS
Maquon
3/4/2021
309-861
Callworks Corporation
Bloomington
07/05/2023
309-862
Frontier North
Bloomington
N/A
309-863
Level 3 Communications
Peoria
1/18/2006
309-864
Teleport Communications America
Macomb
6/10/2009
309-865
Telnyx
East Moline
9/16/2016
309-866
Frontier North
Morton
5/21/2001
309-867
Citizens Telecom Co Illinois-Frontier Citizens -IL
Oquawka
N/A
309-868
T-Mobile USA
Peoria
6/10/2002
309-869
Telnyx
Lewistown
3/13/2017
309-870
Stratus Networks
Cropsey
3/18/2021
309-871
Mediacom Telephony Of Illinois
Viola
12/9/2005
309-872
Citizens Telecom Co Illinois-Frontier Citizens -IL
Rio
N/A
309-873
Citizens Telecom Co Illinois-Frontier Citizens -IL
Gulfport
N/A
309-874
Frontier North
Mc Lean
N/A
309-875
Mid Century Tel. Coop.
Maquon
N/A
309-876
Mid Century Tel. Coop.
Gilson
N/A
309-877
Terra Nova Telecom
Peoria
2/26/2019
309-878
Stratus Networks
Cooksville
3/18/2021
309-879
Mid Century Tel. Coop.
Victoria
N/A
309-880
HD Carrier
Ipava
5/19/2021
309-881
New Cingular Wireless PCS
Industry
4/16/2021
309-882
Telnyx
Canton
6/23/2021
309-883
Cellco Partnership
Kewanee
10/5/2001
309-884
Teleport Communications America
Hanna City
6/5/2007
309-885
Brightspeed Of Illinois
Pekin
5/31/2005
309-886
Frontier North
Washington
N/A
309-887
Citizens Telecom Co Illinois-Frontier Citizens -IL
Albany
N/A
309-888
Frontier North
Bloomington
N/A
309-889
AT&T Enterprises
Spring Bay
7/21/2006
309-890
New Cingular Wireless PCS
Victoria
8/25/2021
309-891
New Cingular Wireless PCS
Knoxville
9/1/2021
309-892
Twilio International
Peoria
4/2/2021
309-893
Level 3 Communications
Saybrook
8/19/2002
309-894
Itv-3
Buda
10/16/2002
309-895
Frontier North
Buda
N/A
309-896
Frontier North
Elmira
N/A
309-897
Frontier North
Bradford
N/A
309-898
Itv-3
Bradford
10/16/2002
309-899
Itv-3
Elmira
10/16/2002
309-900-XXXX --- 309-999-XXXX
NPANXX
Carrier1
Area Served2
Date3
309-900
Fractel
Farmington
10/26/2021
309-901
New Cingular Wireless PCS
Littleton
9/16/2021
309-902
United States Cellular
Pekin
9/20/2021
309-903
Onvoy
Rock Island
2/24/2020
309-904
Onvoy
Joy
10/5/2021
309-905
Onvoy
New Boston
10/5/2021
309-906
New Cingular Wireless PCS
Woodhull
11/8/2021
309-907
Dish Wireless
Moline
1/11/2022
309-908
Onvoy
Washburn
10/5/2021
309-909
Paetec Itel
Moline
4/14/2022
309-910
Onvoy
Edgington
4/30/2021
309-912
New Cingular Wireless PCS
East Moline
8/29/2001
309-913
Commio
Canton
4/14/2022
309-914
New Cingular Wireless PCS
Plymouth
8/2/2022
309-915
Onvoy
Tremont
10/5/2021
309-916
Paetec Itel
Peoria
9/16/2022
309-917
Nuso
Peoria
10/3/2022
309-918
Onvoy
Kewanee
02/07/2023
309-919
Nuso
Pekin
02/08/2023
309-920
HD Carrier
Bloomington
03/08/2023
309-921
Itv-3
Roanoke
N/A
309-922
MetroPCS
Peoria
8/17/2001
309-923
Frontier North
Roanoke
N/A
309-924
Citizens Telecom Co Illinois-Frontier Citizens -IL
Stronghst
N/A
309-925
Frontier North
Tremont
N/A
309-926
Mid Century Tel. Coop.
Marietta
N/A
309-927
Mid Century Tel. Coop.
Bishop Hill
N/A
309-928
Frontier North
Farmer City
N/A
309-929
Itv-3
Tremont
10/16/2002
309-930
Nuso
Rock Island
03/14/2023
309-931
Dish Wireless
Peoria
03/29/2023
309-932
Frontier North
Galva
N/A
309-933
Mediacom Telephony Of Illinois
Green River
1/5/2006
309-934
Henry County Tel. Co.
Annawan
N/A
309-935
Henry County Tel. Co.
Annawan
N/A
309-936
Henry County Tel. Co.
Atkinson
N/A
309-937
Cambridge Tel. Co.
Cambridge
N/A
309-938
Level 3 Communications
Morton
8/19/2002
309-939
Twilio International
Astoria
4/13/2021
309-940
Voip Innovations
Bloomington
04/19/2023
309-941
Teleport Communications America
Towanda
07/06/2023
309-942
Ton80 Communications
San Jose
2/17/2022
309-943
Callworks Corporation
Peoria
10/06/2023
309-944
Geneseo Tel. Co.
Geneseo
N/A
309-945
Geneseo Tel. Co.
Geneseo
N/A
309-946
Geneseo Tel. Co.
Geneseo
6/28/2004
309-948
Level 3 Communications
Rock Island
2/8/2006
309-949
Geneseo Tel. Co.
Green River
N/A
309-951
AT&T
Danvers
01/25/2024
309-952
Onvoy
Alpha
06/26/2023
309-953
Onvoy Spectrum
Forest City
04/16/2024
309-954
T-Mobile USA
Macomb
5/9/2016
309-955
Twilio International
Wataga
12/9/2005
309-956
Onvoy Spectrum
Green Valley
04/16/2024
309-957
Onvoy Spectrum
Topeka
04/16/2024
309-960
Onvoy
Kirkwood
06/03/2024
309-961
Nuso
Bloomington
11/15/2024
309-962
Frontier North
Le Roy
N/A
309-963
Frontier Communications Of Illinois
Danvers
N/A
309-964
Itv-3
Goodfield
10/16/2002
309-965
Frontier Communications Of The Carolinas
Goodfield
N/A
309-966
Comcast IP Phone
Peoria
6/23/2006
309-967
Ton80 Communications
East Moline
2/21/2022
309-968
Brightspeed Of Illinois
Manito
N/A
309-969
T-Mobile USA
Moline
01/07/2025
309-970
AT&T Enterprises
East Moline
03/05/2025
309-971
Nuso
Monmouth
04/04/2025
309-972
Oneida Network Services
Rio
N/A
309-973
United States Cellular
Galesburg
N/A
309-974
Wavenation
Bloomington
07/21/2025
309-975
Onvoy
Avon
N/A
309-977
Mediacom Telephony Of Illinois
Green Valley
N/A
309-978
Wavenation
Macomb
07/23/2025
309-979
Wavenation
Peoria
07/23/2025
309-980
Bandwidth.com Clec
Macomb
07/30/2025
309-981
Onvoy
Peoria
12/15/2008
309-982
Bandwidth.com Clec
Geneseo
N/A
309-983
Onvoy
Ellsworth
4/18/2021
309-984
Bandwidth.com Clec
Bloomington
09/22/2025
309-987
Mediacom Telephony Of Illinois
Cordova
6/15/2005
309-988
Onvoy
Lacon
N/A
309-989
T-Mobile USA
Peoria
N/A
309-992
Illinois Bell Tel Co
Peoria
9/12/2006
309-993
Onvoy
Arrowsmith
4/18/2021
309-994
MCIMetro Access Transmission Services
Bloomington
N/A
309-995
Mid Century Tel. Coop.
La Fayette
N/A
309-996
Ton80 Communications
Fiatt
2/17/2022
309-997
MCC Telephony
Good Hope
6/6/2006
309-998
Century Enterprises
Canton
9/3/2015
309-999
Illinois Bell Tel Co
Peoria
N/A
NPA-NXX assigned carrier; with Number Pooling thousand block numbers are often assigned to other carriers as well; moreover, phone numbers can be ported between service providers
For 'Area served' we list the rate center. In the North American Numbering Plan a rate center is a geographic area used to determine local calling boundaries for billing purposes. Its name is generally a locality, often not the only one served by an NPA-NXX combination.
Assignment date. N/A - mostly central office codes assigned before 2001.
NXX prefixes last updated: November 22, 2025
Cities in area code 309
City1
County
Time Zone1
Abingdon
Knox
C
Adair
McDonough
C
Albany
Whiteside
C
Aledo
Mercer
C
Alexis
Mercer
C
Alpha
Henry
C
Altona
Knox
C
Anchor
McLean
C
Andalusia
Rock Island
C
Andover
Henry
C
Annawan
Henry
C
Armington
Tazewell
C
Arrowsmith
McLean
C
Astoria
Fulton
C
Atkinson
Henry
C
Avon
Fulton
C
Bardolph
McDonough
C
Barstow
Rock Island
C
Bath
Mason
C
Bellflower
McLean
C
Benson
Woodford
C
Berwick
Warren
C
Biggsville
Henderson
C
Bishop Hill
Henry
C
Blandinsville
McDonough
C
Bloomington
McLean
C
Bradford
Stark
C
Brimfield
Peoria
C
Bryant
Fulton
C
Buda
Bureau
C
Buffalo Prairie
Rock Island
C
Bushnell
McDonough
C
Cambridge
Henry
C
Cameron
Warren
C
Camp Grove
Marshall
C
Canton
Fulton
C
Carbon Cliff
Rock Island
C
Carlock
McLean
C
Carman
Henderson
C
Castleton
Stark
C
Chillicothe
Peoria
C
Coal Valley
Rock Island
C
Colchester
McDonough
C
Colfax
McLean
C
Colona
Henry
C
Congerville
Woodford
C
Cooksville
McLean
C
Cordova
Rock Island
C
Creve Coeur
Tazewell
C
Cropsey
McLean
C
Cuba
Fulton
C
Dahinda
Knox
C
Danvers
McLean
C
Deer Creek
Tazewell
C
Delavan
Tazewell
C
Downs
McLean
C
Dunfermline
Fulton
C
Dunlap
Peoria
C
East Galesburg
Knox
C
East Moline
Rock Island
C
East Peoria
Tazewell
C
Easton
Mason
C
Edelstein
Peoria
C
Edwards
Peoria
C
El Paso
Woodford
C
Ellisville
Fulton
C
Ellsworth
McLean
C
Elmwood
Peoria
C
Erie
Whiteside
C
Eureka
Woodford
C
Fairview
Fulton
C
Farmer City
Dewitt
C
Farmington
Fulton
C
Fenton
Whiteside
C
Fiatt
Fulton
C
Forest City
Mason
C
Galesburg
Knox
C
Galva
Henry
C
Geneseo
Henry
C
Gerlaw
Warren
C
Gilson
Knox
C
Gladstone
Henderson
C
Glasford
Peoria
C
Good Hope
McDonough
C
Goodfield
Woodford
C
Green Valley
Tazewell
C
Gridley
McLean
C
Groveland
Tazewell
C
Hampton
Rock Island
C
Hanna City
Peoria
C
Havana
Mason
C
Henderson
Knox
C
Henry
Marshall
C
Heyworth
McLean
C
Hillsdale
Rock Island
C
Hopedale
Tazewell
C
Hudson
McLean
C
Illinois City
Rock Island
C
Industry
McDonough
C
Ipava
Fulton
C
Joy
Mercer
C
Keithsburg
Mercer
C
Kewanee
Henry
C
Kilbourne
Mason
C
Kingston Mines
Peoria
C
Kirkwood
Warren
C
Knoxville
Knox
C
La Fayette
Stark
C
La Rose
Marshall
C
Lacon
Marshall
C
Laura
Peoria
C
Le Roy
McLean
C
Lewistown
Fulton
C
Lexington
McLean
C
Little York
Warren
C
Littleton
Schuyler
C
Liverpool
Fulton
C
London Mills
Fulton
C
Lowpoint
Woodford
C
Lynn Center
Henry
C
Mackinaw
Tazewell
C
Macomb
McDonough
C
Manito
Mason
C
Mapleton
Peoria
C
Maquon
Knox
C
Marietta
Fulton
C
Matherville
Mercer
C
Mc Lean
McLean
C
Media
Henderson
C
Merna
McLean
C
Metamora
Woodford
C
Milan
Rock Island
C
Mineral
Bureau
C
Minier
Tazewell
C
Minonk
Woodford
C
Moline
Rock Island
C
Monmouth
Warren
C
Morton
Tazewell
C
Mossville
Peoria
C
Neponset
Bureau
C
New Boston
Mercer
C
New Windsor
Mercer
C
Normal
McLean
C
Norris
Fulton
C
North Henderson
Mercer
C
Oneida
Knox
C
Ophiem
Henry
C
Oquawka
Henderson
C
Orion
Henry
C
Osco
Henry
C
Pekin
Tazewell
C
Peoria
Peoria
C
Peoria Heights
Peoria
C
Plymouth
Hancock
C
Port Byron
Rock Island
C
Prairie City
McDonough
C
Preemption
Mercer
C
Princeville
Peoria
C
Rapids City
Rock Island
C
Raritan
Henderson
C
Reynolds
Rock Island
C
Rio
Knox
C
Roanoke
Woodford
C
Rock Island
Rock Island
C
Rome
Peoria
C
Roseville
Warren
C
San Jose
Mason
C
Saybrook
McLean
C
Sciota
McDonough
C
Seaton
Mercer
C
Secor
Woodford
C
Sherrard
Mercer
C
Shirley
McLean
C
Silvis
Rock Island
C
Smithfield
Fulton
C
Smithshire
Warren
C
South Pekin
Tazewell
C
Sparland
Marshall
C
Speer
Stark
C
St Augustine
Knox
C
St David
Fulton
C
Stanford
McLean
C
Stronghurst
Henderson
C
Table Grove
Fulton
C
Taylor Ridge
Rock Island
C
Tennessee
McDonough
C
Topeka
Mason
C
Toulon
Stark
C
Towanda
McLean
C
Tremont
Tazewell
C
Trivoli
Peoria
C
Varna
Marshall
C
Vermont
Fulton
C
Victoria
Knox
C
Viola
Mercer
C
Washburn
Marshall
C
Washington
Tazewell
C
Wataga
Knox
C
Williamsfield
Knox
C
Woodhull
Henry
C
Wyoming
Stark
C
Yates City
Knox
C
Listed above are most places served by USA area code 309. When multiple places in a US state share the same name we list the largest one only. Cities with population over 50,000 are displayed in bold text.
