Area code 956
6,242 number blocks indexed across 51 carriers.
States: TX (6,242)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 6534 | New Cingular Wireless PCS LLC - IL | Atlanta, GA | Wireless Carrier | 1,401 | 125 | att.com |
| 4290 | STPCS Joint Venture LLC | Scottsdale, AZ | Personal Communications Service (Wireless) | 1,482 | 112 | t-mobile.com |
| 6506 | Cellco Partnership dba Verizon Wireless - TX | Olathe, KS | Wireless Carrier | 350 | 56 | verizonwireless.com |
| 515J | IP Horizon LLC | Orlando, FL | IP-Enabled Service / VoIP | 37 | 24 | |
| 903C | Onvoy LLC - TX | Chicago, IL | Competitive Local Exchange Carrier | 437 | 20 | sinch.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 109 | 9 | |
| 004F | Bandwidth.com CLEC LLC - TX | Cary, NC | Competitive Local Exchange Carrier | 308 | 4 | bandwidth.com |
| 145J | Terra Nova Telecom Inc | Lakewood Ranch, FL | IP-Enabled Service / VoIP | 5 | 4 | terranova.net |
| 7138 | Teleport Communications America LLC - TX | Staten Island, NY | Competitive Local Exchange Carrier | 52 | 2 | att.com |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 17 | 2 | dish.com |
| 671J | U.S. Telepacific Corporation dba TPx Communications | Las Vegas, NV | IP-Enabled Service / VoIP | 2 | 2 | tpx.com |
| 478J | NUSO LLC | Atlanta, GA | IP-Enabled Service / VoIP | 6 | 1 | brightlink.com |
| 700J | Wavenation LLC | Chicago, IL | IP-Enabled Service / VoIP | 2 | 1 | peerlessnetwork.com |
| 9533 | Southwestern Bell Telephone Company | Dallas, TX | Regional Bell Operating Company | 626 | — | att.com |
| 5562 | T-Mobile USA Inc | Dallas, TX | Personal Communications Service (Wireless) | 540 | — | metropcs.com |
| 793K | TWC IP Enabled Services LLC | Saint Louis, MO | IP-Enabled Service / VoIP | 174 | — | |
| 6114 | Level 3 Communications LLC - TX | Westminster, CO | Competitive Local Exchange Carrier | 109 | — | centurylink.com |
| 4344 | Frontier Southwest Incorporated dba Frontier Communications of Texas | Irving, TX | Regional Bell Operating Company | 78 | — | frontier.com |
| 319D | Foremost Telecommunications Corporation - TX | Dallas, TX | Competitive Local Exchange Carrier | 59 | — | foremosttelecom.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 42 | — | telnyx.com |
| 4866 | Smartcom Telephone LLC | Mcallen, TX | Competitive Local Exchange Carrier | 42 | — | smartcomtelephone.com |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 34 | — | verizon.com |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 34 | — | commio.com |
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 29 | — | fractel.net |
| 177F | Peerless Network of Texas LLC - TX | Chicago, IL | Competitive Local Exchange Carrier | 27 | — | peerlessnetwork.com |
| 516C | AT&T Enterprises LLC | San Antonio, TX | IP-Enabled Service / VoIP | 26 | — | att.com |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 25 | — | vonage.com |
| 7148 | Teleport Communications America LLC - TX | Staten Island, NY | Competitive Local Exchange Carrier | 25 | — | att.com |
| 2159 | Valley Telephone Cooperative Inc | Raymondville, TX | Incumbent Local Exchange Carrier | 24 | — | vtc.net |
| 508J | CenturyLink Communications LLC | Littleton, CO | IP-Enabled Service / VoIP | 24 | — | centurylink.com |
| 776A | VTX Communications LLC | Raymondville, TX | Competitive Local Exchange Carrier | 21 | — | vti.net |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | — | ||
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 13 | — | coretel.net |
| 7399 | Westel Inc - TX | Austin, TX | Competitive Local Exchange Carrier | 12 | — | westelsystems.com |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 11 | — | att.com |
| 6630 | Spok Inc | Plano, TX | Wireless Carrier | 6 | — | spok.com |
| 679E | Transtelco Inc - TX | Palm Harbor, FL | Competitive Local Exchange Carrier | 5 | — | isg-telecom.com |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 5 | — | brightlink.com |
| 2090 | Alenco Communications Inc | Joshua, TX | Incumbent Local Exchange Carrier | 4 | — | aciglobal.com |
| 7670 | Grande Communications Networks Inc - TX | San Marcos, TX | Competitive Local Exchange Carrier | 4 | — | grandecom.com |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 3 | — | hdcarrier.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 3 | — | |
| 318J | Comcast IP Phone LLC | Philadelphia, PA | IP-Enabled Service / VoIP | 2 | — | comcast.com |
| 425J | CSC Wireless LLC | Long Island City, NY | Wireless Carrier | 2 | — | alticeusa.com |
| 475J | Callworks Corporation | Fair Oaks, TX | IP-Enabled Service / VoIP | 2 | — | callworks.me |
| 506J | Twilio International Inc | San Francisco, CA | IP-Enabled Service / VoIP | 2 | — | twilio.com |
| 616J | Leap Telecom LLC | Denver, CO | IP-Enabled Service / VoIP | 2 | — | leap.tel |
| 622J | Skye Telecom LLC dba Skyetel | Vancouver, WA | IP-Enabled Service / VoIP | 2 | — | skyetel.com |
| 2073 | Border To Border Communications | Kerrville, TX | Incumbent Local Exchange Carrier | 1 | — | |
| 6529 | T-Mobile USA Inc | Bellevue, WA | Personal Communications Service (Wireless) | 1 | — | t-mobile.com |
| 8434 | Level 3 of Telecom of Texas LLC - TX | Littleton, CO | Competitive Local Exchange Carrier | 1 | — | twcable.com |