Area code 623
2,572 number blocks indexed across 32 carriers.
States: AZ (2,572)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 18 | 11 | dish.com |
| 6010 | New Cingular Wireless PCS LLC | Kirkland, WA | Wireless Carrier | 152 | 8 | att.com |
| 6572 | Cellco Partnership dba Verizon Wireless - AZ | Olathe, KS | Wireless Carrier | 272 | 6 | verizonwireless.com |
| 907K | Allo Communications LLC | Lincoln, NE | IP-Enabled Service / VoIP | 2 | 2 | |
| 579F | Peerless Network of Arizona LLC - AZ | Chicago, IL | Competitive Local Exchange Carrier | 17 | 1 | peerlessnetwork.com |
| 6529 | T-Mobile USA Inc | Bellevue, WA | Personal Communications Service (Wireless) | 521 | — | t-mobile.com |
| 630E | Onvoy LLC - AZ | Chicago, IL | Competitive Local Exchange Carrier | 375 | — | sinch.com |
| 9636 | Qwest Corporation | Minneapolis, MN | Regional Bell Operating Company | 362 | — | centurylink.com |
| 318J | Comcast IP Phone LLC | Philadelphia, PA | IP-Enabled Service / VoIP | 186 | — | comcast.com |
| 587F | Bandwidth.com CLEC LLC - AZ | Cary, NC | Competitive Local Exchange Carrier | 127 | — | bandwidth.com |
| 3285 | Level 3 Communications LLC - AZ | Westminster, CO | Competitive Local Exchange Carrier | 115 | — | centurylink.com |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 107 | — | verizon.com |
| 5562 | T-Mobile USA Inc | Dallas, TX | Personal Communications Service (Wireless) | 88 | — | metropcs.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 49 | — | |
| 7217 | Teleport Communications America LLC - AZ | Staten Island, NY | Competitive Local Exchange Carrier | 44 | — | att.com |
| 7175 | Electric Lightwave LLC dba Allstream | Portland, OR | Competitive Local Exchange Carrier | 35 | — | allstream.com |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | — | ||
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 13 | — | commio.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 11 | — | telnyx.com |
| 7552 | Level 3 Telecom of Arizona LLC - AZ | Littleton, CO | Competitive Local Exchange Carrier | 11 | — | centurylink.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 11 | — | |
| 508J | CenturyLink Communications LLC | Littleton, CO | IP-Enabled Service / VoIP | 10 | — | centurylink.com |
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 9 | — | fractel.net |
| 663G | Re-Invent Telecom LLC - AZ | Scottsdale, AZ | Competitive Local Exchange Carrier | 5 | — | saddlebackcomm.com |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 4 | — | att.com |
| 4793 | XO Arizona Inc | Reston, VA | Competitive Local Exchange Carrier | 3 | — | verizon.com |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 3 | — | brightlink.com |
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 2 | — | coretel.net |
| 710A | Allo Communications LLC - NE | Imperial, NE | Competitive Local Exchange Carrier | 2 | — | allophone.net |
| 947E | Gila Local Exchange Carrier Inc - AZ | Chandler, AZ | Competitive Local Exchange Carrier | 2 | — | gilarivertel.com |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 1 | — | vonage.com |
| 2191 | Accipiter Communications Inc dba Zona Communications | Phoenix, AZ | Incumbent Local Exchange Carrier | 1 | — | wyyerd.com |