Area code 531
2,239 number blocks indexed across 44 carriers.
States: NE (2,239)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 7144 | Teleport Communications America LLC - NE | Staten Island, NY | Competitive Local Exchange Carrier | 202 | 174 | att.com |
| 6263 | United States Cellular - NE | Chicago, IL | Wireless Carrier | 171 | 107 | uscellular.com |
| 6534 | New Cingular Wireless PCS LLC - IL | Atlanta, GA | Wireless Carrier | 177 | 56 | att.com |
| 5807 | Cellco Partnership dba Verizon Wireless - NE | Olathe, KS | Wireless Carrier | 291 | 52 | verizonwireless.com |
| 6701 | Aerial Communications Inc | Chicago, IL | Personal Communications Service (Wireless) | 211 | 45 | t-mobile.com |
| 549E | Onvoy LLC - NE | Chicago, IL | Competitive Local Exchange Carrier | 500 | 28 | sinch.com |
| 5562 | T-Mobile USA Inc | Dallas, TX | Personal Communications Service (Wireless) | 46 | 25 | metropcs.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 100 | 6 | |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 19 | 6 | dish.com |
| 793K | TWC IP Enabled Services LLC | Saint Louis, MO | IP-Enabled Service / VoIP | 15 | 4 | |
| 700J | Wavenation LLC | Chicago, IL | IP-Enabled Service / VoIP | 4 | 4 | peerlessnetwork.com |
| 907K | Allo Communications LLC | Lincoln, NE | IP-Enabled Service / VoIP | 4 | 4 | |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 4 | 2 | att.com |
| 733J | Wiretap Telecom LLC | Miami, FL | IP-Enabled Service / VoIP | 2 | 2 | wiretaptelecom.com |
| 710A | Allo Communications LLC - NE | Imperial, NE | Competitive Local Exchange Carrier | 24 | 1 | allophone.net |
| 478H | Airus Inc - NE | Chicago, IL | Competitive Local Exchange Carrier | 17 | 1 | airustel.com |
| 318J | Comcast IP Phone LLC | Philadelphia, PA | IP-Enabled Service / VoIP | 75 | — | comcast.com |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 66 | — | commio.com |
| 3233 | Level 3 Communications LLC - NE | Westminster, CO | Competitive Local Exchange Carrier | 59 | — | centurylink.com |
| 995E | Bandwidth.com CLEC LLC - NE | Cary, NC | Competitive Local Exchange Carrier | 47 | — | bandwidth.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 38 | — | telnyx.com |
| 508J | CenturyLink Communications LLC | Littleton, CO | IP-Enabled Service / VoIP | 35 | — | centurylink.com |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 25 | — | verizon.com |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 14 | — | brightlink.com |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | — | ||
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 13 | — | fractel.net |
| 9631 | Qwest Corporation | Minneapolis, MN | Regional Bell Operating Company | 12 | — | centurylink.com |
| 6529 | T-Mobile USA Inc | Bellevue, WA | Personal Communications Service (Wireless) | 10 | — | t-mobile.com |
| 012E | Great Plains Broadband Inc - NE | Blair, NE | Competitive Local Exchange Carrier | 6 | — | gpcom.com |
| 885E | Glenwood Telecommunications Inc - NE | Blue Hill, NE | Competitive Local Exchange Carrier | 5 | — | gtmc.net |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 4 | — | vonage.com |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 4 | — | hdcarrier.com |
| 506J | Twilio International Inc | San Francisco, CA | IP-Enabled Service / VoIP | 4 | — | twilio.com |
| 6874 | NE Colorado Cellular Inc | Fort Morgan, CO | Wireless Carrier | 4 | — | mycellularone.com |
| 495J | Stratus Networks Inc | Peoria Heights, IL | IP-Enabled Service / VoIP | 3 | — | stratusnet.com |
| 792K | Charter IP Enabled Services LLC | Saint Louis, MO | IP-Enabled Service / VoIP | 3 | — | |
| 425J | CSC Wireless LLC | Long Island City, NY | Wireless Carrier | 2 | — | alticeusa.com |
| 444H | Wide Voice LLC - NE | Las Vegas, NV | Competitive Local Exchange Carrier | 2 | — | widevoice.com |
| 515J | IP Horizon LLC | Orlando, FL | IP-Enabled Service / VoIP | 2 | — | |
| 145J | Terra Nova Telecom Inc | Lakewood Ranch, FL | IP-Enabled Service / VoIP | 1 | — | terranova.net |
| 444G | Aureon Communications LLC | Des Moines, IA | Competitive Local Exchange Carrier | 1 | — | longlines.com |
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 1 | — | coretel.net |
| 681A | Three River Communications LLC - NE | Lynch, NE | Competitive Local Exchange Carrier | 1 | — | threeriver.net |
| 851A | HunTel CableVision Inc dba HunTel Communications - NE | Blair, NE | Competitive Local Exchange Carrier | 1 | — |