Area code 423
5,749 number blocks indexed across 63 carriers.
States: TN (5,749)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 6673 | Cellco Partnership dba Verizon Wireless - TN | Olathe, KS | Wireless Carrier | 968 | 40 | verizonwireless.com |
| 6278 | United States Cellular - TN | Chicago, IL | Wireless Carrier | 100 | 33 | uscellular.com |
| 124F | Bandwidth.com CLEC LLC - TN | Cary, NC | Competitive Local Exchange Carrier | 419 | 23 | bandwidth.com |
| 145J | Terra Nova Telecom Inc | Lakewood Ranch, FL | IP-Enabled Service / VoIP | 21 | 20 | terranova.net |
| 7473 | Powertel Atlanta Licenses Inc | Bellevue, WA | Personal Communications Service (Wireless) | 238 | 19 | t-mobile.com |
| 792K | Charter IP Enabled Services LLC | Saint Louis, MO | IP-Enabled Service / VoIP | 105 | 14 | |
| 6214 | New Cingular Wireless PCS LLC - GA | Atlanta, GA | Wireless Carrier | 677 | 11 | att.com |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 10 | 10 | hdcarrier.com |
| 525E | Onvoy LLC - TN | Chicago, IL | Competitive Local Exchange Carrier | 728 | 7 | sinch.com |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 19 | 5 | dish.com |
| 276F | Peerless Network of Tennessee LLC - TN | Chicago, IL | Competitive Local Exchange Carrier | 5 | 4 | peerlessnetwork.com |
| 700J | Wavenation LLC | Chicago, IL | IP-Enabled Service / VoIP | 4 | 4 | peerlessnetwork.com |
| 7476 | Powertel Nashville Licenses Inc | Bellevue, WA | Personal Communications Service (Wireless) | 128 | 3 | t-mobile.com |
| 5562 | T-Mobile USA Inc | Dallas, TX | Personal Communications Service (Wireless) | 109 | 2 | metropcs.com |
| 114F | Teleport Communications America LLC - TN | Bedminster, NJ | Competitive Local Exchange Carrier | 90 | 1 | att.com |
| 7278 | MCImetro Access Transmission Services LLC - TN | Vienna, VA | Competitive Local Exchange Carrier | 45 | 1 | verizon.com |
| 793K | TWC IP Enabled Services LLC | Saint Louis, MO | IP-Enabled Service / VoIP | 2 | 1 | |
| 9419 | Bellsouth Telecommunications Inc dba South Central Bell Telephone | Atlanta, GA | Regional Bell Operating Company | 500 | · | att.com |
| 4510 | United Telephone-Southeast LLC dba CenturyLink - TN | Overland Park, KS | Incumbent Local Exchange Carrier | 269 | · | centurylink.com |
| 4806 | Level 3 Communications LLC - TN | Westminster, CO | Competitive Local Exchange Carrier | 214 | · | centurylink.com |
| 8645 | SunCom dba T-Mobile USA | Charleston, SC | Personal Communications Service (Wireless) | 171 | · | t-mobile.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 160 | · | |
| 4645 | Electric Power Board of Chattanooga | Chattanooga, TN | Competitive Local Exchange Carrier | 122 | · | epb.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 105 | · | |
| 318J | Comcast IP Phone LLC | Philadelphia, PA | IP-Enabled Service / VoIP | 104 | · | comcast.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 70 | · | telnyx.com |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 63 | · | commio.com |
| 0565 | Highland Telephone Cooperative Inc - TN | Sunbright, TN | Incumbent Local Exchange Carrier | 34 | · | highland.net |
| 516C | AT&T Enterprises LLC | San Antonio, TX | IP-Enabled Service / VoIP | 34 | · | att.com |
| 0578 | Tellico Telephone Company Inc | Madison, WI | Incumbent Local Exchange Carrier | 29 | · | tdstelecom.com |
| 204G | Twin Lakes Communications Inc - TN | Gainesboro, TN | Competitive Local Exchange Carrier | 18 | · | twlakes.coop |
| 0574 | Brightspeed of Southern Tennessee LLC | Monroe, LA | Incumbent Local Exchange Carrier | 17 | · | centurylink.com |
| 0554 | Bledsoe Telephone Cooperative | Pikeville, TN | Incumbent Local Exchange Carrier | 14 | · | bledsoe.net |
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 14 | · | coretel.net |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | · | ||
| 478J | NUSO LLC | Atlanta, GA | IP-Enabled Service / VoIP | 13 | · | brightlink.com |
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 12 | · | fractel.net |
| 508J | CenturyLink Communications LLC | Littleton, CO | IP-Enabled Service / VoIP | 11 | · | centurylink.com |
| 0557 | Brightspeed of Eastern Tennessee LLC | Monroe, LA | Incumbent Local Exchange Carrier | 10 | · | centurylink.com |
| 081J | SkyBest Communications Inc - TN | West Jefferson, NC | Competitive Local Exchange Carrier | 8 | · | skybest.com |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 7 | · | vonage.com |
| 6630 | Spok Inc | Plano, TX | Wireless Carrier | 7 | · | spok.com |
| 2757 | CenturyLink Communications LLC - TN | Monroe, LA | Competitive Local Exchange Carrier | 6 | · | centurylink.com |
| 008A | MountaiNet Telephone Company - TN | Gate City, VA | Competitive Local Exchange Carrier | 5 | · | mounet.com |
| 551G | NUSO LLC | Atlanta, GA | Wireless Carrier | 5 | · | 365wireless.net |
| 365C | Powertel Kentucky Licenses Inc | Bellevue, WA | Personal Communications Service (Wireless) | 4 | · | t-mobile.com |
| 425J | CSC Wireless LLC | Long Island City, NY | Wireless Carrier | 4 | · | alticeusa.com |
| 506J | Twilio International Inc | San Francisco, CA | IP-Enabled Service / VoIP | 4 | · | twilio.com |
| 515J | IP Horizon LLC | Orlando, FL | IP-Enabled Service / VoIP | 4 | · | |
| 622J | Skye Telecom LLC dba Skyetel | Vancouver, WA | IP-Enabled Service / VoIP | 4 | · | skyetel.com |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 4 | · | brightlink.com |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 4 | · | att.com |
| 3185 | Mountainet Telephone Company - VA | Gate City, VA | Competitive Local Exchange Carrier | 3 | · | mounet.com |
| 895D | Bristol Tennessee Essential Services - TN | Bristol, TN | Competitive Local Exchange Carrier | 3 | · | fiveinc.net |
| 475J | Callworks Corporation | Fair Oaks, TX | IP-Enabled Service / VoIP | 2 | · | callworks.me |
| 967F | Peace Communications LLC - TN | Chattanooga, TN | Competitive Local Exchange Carrier | 2 | · | peacecom.net |
| 0248 | Scott County Telephone Cooperative Inc | Gate City, VA | Incumbent Local Exchange Carrier | 1 | · | sctc.org |
| 0501 | Skyline Telephone Membership Corporation | West Jefferson, NC | Incumbent Local Exchange Carrier | 1 | · | skybest.com |
| 156J | RCLEC Inc | Centennial, CO | IP-Enabled Service / VoIP | 1 | · | rclec.com |
| 239E | Telescan Inc - TN | Johnson City, TN | Competitive Local Exchange Carrier | 1 | · | mytelescan.com |
| 271E | RTC Solutions Inc - GA | Ringgold, GA | Competitive Local Exchange Carrier | 1 | · | rtctel.com |
| 566D | ETC Communications LLC - TN | Ellijay, GA | Competitive Local Exchange Carrier | 1 | · | ellijay.com |
| 6880 | Pro Page Partners LLC | Gray, TN | Wireless Carrier | 1 | · |