Area code 309
5,167 number blocks indexed across 77 carriers.
States: IL (5,167)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 6265 | United States Cellular - IL | Chicago, IL | Wireless Carrier | 297 | 31 | uscellular.com |
| 145J | Terra Nova Telecom Inc | Lakewood Ranch, FL | IP-Enabled Service / VoIP | 32 | 31 | terranova.net |
| 6534 | New Cingular Wireless PCS LLC - IL | Atlanta, GA | Wireless Carrier | 294 | 22 | att.com |
| 6529 | T-Mobile USA Inc | Bellevue, WA | Personal Communications Service (Wireless) | 326 | 12 | t-mobile.com |
| 6333 | Cellco Partnership dba Verizon Wireless - IL | Olathe, KS | Wireless Carrier | 674 | 8 | verizonwireless.com |
| 224C | Onvoy LLC | Chicago, IL | Competitive Local Exchange Carrier | 796 | 7 | sinch.com |
| 700J | Wavenation LLC | Chicago, IL | IP-Enabled Service / VoIP | 6 | 6 | peerlessnetwork.com |
| 984E | Bandwidth.com CLEC LLC - IL | Cary, NC | Competitive Local Exchange Carrier | 139 | 5 | bandwidth.com |
| 516C | AT&T Enterprises LLC | San Antonio, TX | IP-Enabled Service / VoIP | 22 | 5 | att.com |
| 063E | Peerless Network of Illinois LLC - IL | Chicago, IL | Competitive Local Exchange Carrier | 76 | 4 | peerlessnetwork.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 143 | 3 | |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 15 | 3 | brightlink.com |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 10 | 3 | hdcarrier.com |
| 318J | Comcast IP Phone LLC | Philadelphia, PA | IP-Enabled Service / VoIP | 71 | 2 | comcast.com |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 26 | 2 | dish.com |
| 478J | NUSO LLC | Atlanta, GA | IP-Enabled Service / VoIP | 4 | 2 | brightlink.com |
| 6115 | Level 3 Communications LLC - IL | Westminster, CO | Competitive Local Exchange Carrier | 249 | 1 | centurylink.com |
| 5562 | T-Mobile USA Inc | Dallas, TX | Personal Communications Service (Wireless) | 156 | 1 | metropcs.com |
| 1015 | Frontier North Inc - IL | Rochester, NY | Incumbent Local Exchange Carrier | 370 | — | frontier.com |
| 9329 | Ameritech Illinois | Hoffman Estates, IL | Regional Bell Operating Company | 330 | — | att.com |
| 495J | Stratus Networks Inc | Peoria Heights, IL | IP-Enabled Service / VoIP | 142 | — | stratusnet.com |
| 846F | Mediacom Telephony of Illinois LLC - IL | Middletown, NY | Competitive Local Exchange Carrier | 136 | — | mediacomcc.com |
| 1183 | Citizens Telecommunications Company of Illinois dba Frontier Citizens Communications of Illinois | Rochester, NY | Incumbent Local Exchange Carrier | 122 | — | frontier.com |
| 1057 | Brightspeed of Illinois LLC | Monroe, LA | Incumbent Local Exchange Carrier | 96 | — | centurylink.com |
| 508J | CenturyLink Communications LLC | Littleton, CO | IP-Enabled Service / VoIP | 93 | — | centurylink.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 68 | — | telnyx.com |
| 7136 | Teleport Communications America LLC - IL | Staten Island, NY | Competitive Local Exchange Carrier | 62 | — | att.com |
| 5800 | iTV-3 LLC dba i3 Broadband | Peoria, IL | Competitive Local Exchange Carrier | 41 | — | |
| 7196 | MCImetro Access Transmission Services LLC - IL | Vienna, VA | Competitive Local Exchange Carrier | 33 | — | verizon.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 30 | — | |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 25 | — | commio.com |
| 593K | MCC Telephony LLC | Mediacom Park, NY | IP-Enabled Service / VoIP | 20 | — | |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 19 | — | vonage.com |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 19 | — | verizon.com |
| 1016 | Geneseo Telephone Company | Geneseo, IL | Incumbent Local Exchange Carrier | 18 | — | geneseo.com |
| 1054 | Mid Century Telephone Cooperative Inc | Fairview, IL | Incumbent Local Exchange Carrier | 14 | — | midcentury.com |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | — | ||
| 1029 | Henry County Telephone Company | Geneseo, IL | Incumbent Local Exchange Carrier | 13 | — | geneseo.com |
| 1000 | Frontier Communications of the Carolinas Inc - IL | Rochester, NY | Incumbent Local Exchange Carrier | 12 | — | frontier.com |
| 4837 | MTCO Communications Inc | Metamora, IL | Competitive Local Exchange Carrier | 11 | — | mdtc.net |
| 1038 | Frontier Communications of Illinois Inc | Rochester, NY | Incumbent Local Exchange Carrier | 10 | — | frontier.com |
| 1047 | McDonough Telephone Cooperative | Colchester, IL | Incumbent Local Exchange Carrier | 10 | — | mdtc.net |
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 10 | — | coretel.net |
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 10 | — | fractel.net |
| 342F | MTC Communications Inc - IL | Colchester, IL | Competitive Local Exchange Carrier | 9 | — | mdtc.net |
| 259E | YMax Communications Corporation - IL | Palm Beach, FL | Competitive Local Exchange Carrier | 8 | — | ymaxcorp.com |
| 506J | Twilio International Inc | San Francisco, CA | IP-Enabled Service / VoIP | 8 | — | twilio.com |
| 551G | NUSO LLC | Atlanta, GA | Wireless Carrier | 8 | — | 365wireless.net |
| 622J | Skye Telecom LLC dba Skyetel | Vancouver, WA | IP-Enabled Service / VoIP | 8 | — | skyetel.com |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 7 | — | att.com |
| 1036 | Frontier North Inc - IL | Rochester, NY | Incumbent Local Exchange Carrier | 5 | — | frontier.com |
| 455H | Century Enterprises Inc - IL | Fairview, IL | Competitive Local Exchange Carrier | 5 | — | fiberfastnow.com |
| 425J | CSC Wireless LLC | Long Island City, NY | Wireless Carrier | 4 | — | alticeusa.com |
| 475J | Callworks Corporation | Fair Oaks, TX | IP-Enabled Service / VoIP | 4 | — | callworks.me |
| 8790 | Geneseo Communications Services Inc - IL | Geneseo, IL | Competitive Local Exchange Carrier | 4 | — | geneseo.com |
| 0983 | Cambridge Telephone Company | Geneseo, IL | Incumbent Local Exchange Carrier | 3 | — | pnpt.com |
| 1053 | Metamora Telephone Company | Metamora, IL | Incumbent Local Exchange Carrier | 3 | — | mtco.com |
| 1067 | Frontier Communications of Orion Inc | Rochester, NY | Incumbent Local Exchange Carrier | 2 | — | frontier.com |
| 1091 | Woodhull Community Telephone Company | Woodhull, IL | Incumbent Local Exchange Carrier | 2 | — | woodhulltel.com |
| 114J | Exiant Communications LLC | Eldersburg, MD | IP-Enabled Service / VoIP | 2 | — | exiantcom.com |
| 272H | CS Technologies Inc | Eldridge, IA | Competitive Local Exchange Carrier | 2 | — | centralscott.com |
| 515J | IP Horizon LLC | Orlando, FL | IP-Enabled Service / VoIP | 2 | — | |
| 597F | VOIP Innovations LLC | Pittsburgh, PA | IP-Enabled Service / VoIP | 2 | — | voipstreet.com |
| 616J | Leap Telecom LLC | Denver, CO | IP-Enabled Service / VoIP | 2 | — | leap.tel |
| 057H | Local Access LLC - IL | Windermere, FL | Competitive Local Exchange Carrier | 1 | — | |
| 0976 | Adams Telephone Cooperative | Golden, IL | Incumbent Local Exchange Carrier | 1 | — | adams.net |
| 0984 | Cass Telephone Company | Virginia, IL | Incumbent Local Exchange Carrier | 1 | — | casscomm.com |
| 1004 | Consolidated Communications of Central Illinois Company | Dodge City, KS | Incumbent Local Exchange Carrier | 1 | — | consolidated.com |
| 1017 | Glasford Telephone Company | Glasford, IL | Incumbent Local Exchange Carrier | 1 | — | glastel.net |
| 1023 | Gridley Telephone Company | Gridley, IL | Incumbent Local Exchange Carrier | 1 | — | gridtel.com |
| 1062 | New Windsor Telephone Company | New Windsor, IL | Incumbent Local Exchange Carrier | 1 | — | nwtelephone.com |
| 1066 | Oneida Telephone Exchange | Oneida, IL | Incumbent Local Exchange Carrier | 1 | — | oneidatel.com |
| 1075 | Reynolds Telephone Company Inc | Reynolds, IL | Incumbent Local Exchange Carrier | 1 | — | reytel.net |
| 1087 | Viola Home Telephone Company | Viola, IL | Incumbent Local Exchange Carrier | 1 | — | violatel.com |
| 4624 | Oneida Network Services Inc | Oneida, IL | Competitive Local Exchange Carrier | 1 | — | oneidatel.com |
| 6630 | Spok Inc | Plano, TX | Wireless Carrier | 1 | — | spok.com |
| 9748 | American Messaging Services LLC | Lewisville, TX | Wireless Carrier | 1 | — | americanmessaging.net |