Recent prefix assignments
375 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2017-12-21 | 707-615 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - CA | 649C | SANTA ROSA | CA |
| 2017-12-21 | 720-601 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-12-21 | 825-207 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2017-12-21 | 825-212 | not yet reported which blocks → | TELUS | 8084 | High River | — |
| 2017-12-21 | 825-213 | not yet reported which blocks → | TELUS | 8084 | Fort McMurray | — |
| 2017-12-21 | 907-417 | 7XXX which blocks → | GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION | 6872 | NULATO | AK |
| 2017-12-21 | 907-709 | 7XXX which blocks → | GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION | 6872 | HUSLIA | AK |
| 2017-12-21 | 939-200 | 0–9 XXXall 10 · 3 holders which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2017-12-21 | 939-425 | 0–9 XXXwhole prefix which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | NARANJITO | PR |
| 2017-12-20 | 234-238 | 0–9 XXXall 10 · 3 holders which blocks → | VONAGE AMERICA LLC | 197D | AKRON | OH |
| 2017-12-20 | 236-238 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Nanaimo | — |
| 2017-12-20 | 236-428 | not yet reported which blocks → | TELUS | 8086 | New Westminster | — |
| 2017-12-20 | 236-429 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| 2017-12-20 | 239-468 | 0–9 XXXwhole prefix which blocks → | CENTURYLINK OF FLORIDA, INC. (UNITED) | 0341 | BONITA SPG | FL |
| 2017-12-20 | 240-576 | 0–9 XXXall 10 · 3 holders which blocks → | VONAGE AMERICA LLC | 197D | HAGERSTOWN | MD |
| 2017-12-20 | 249-288 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Barrie | — |
| 2017-12-20 | 256-421 | 0XXX1XXX · 2 holders which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | GRANT | AL |
| 2017-12-20 | 336-206 | 0XXX which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | BALDWIN | NC |
| 2017-12-20 | 337-450 | 0–9 XXXall 10 · 5 holders which blocks → | LAFAYETTE CITY-PARISH CONSOLIDATED GOVERNMENT - LA | 9002 | YOUNGSVL | LA |
| 2017-12-20 | 346-290 | 0–9 XXXall 10 · 2 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | BAMMEL | TX |
| 2017-12-20 | 346-322 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2017-12-20 | 361-295 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | C CHRISTI | TX |
| 2017-12-20 | 365-688 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oshawa | — |
| 2017-12-20 | 438-851 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2017-12-20 | 438-852 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2017-12-20 | 469-370 | 0–9 XXXall 10 · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | MCKINNEY | TX |
| 2017-12-20 | 470-489 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ATLANTA NE | GA |
| 2017-12-20 | 520-771 | 0–9 XXXall 10 · 4 holders which blocks → | VONAGE AMERICA LLC | 197D | TUCSON | AZ |
| 2017-12-20 | 647-246 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2017-12-20 | 647-279 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2017-12-20 | 647-616 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2017-12-20 | 682-265 | 0–9 XXXall 10 · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | ARLINGTON | TX |
| 2017-12-20 | 719-755 | 0–9 XXXall 10 · 8 holders which blocks → | VONAGE AMERICA LLC | 197D | COLORDOSPG | CO |
| 2017-12-20 | 757-991 | 0–9 XXXall 10 · 5 holders which blocks → | VONAGE AMERICA LLC | 197D | NRFOLKZON1 | VA |
| 2017-12-20 | 772-227 | 0–9 XXXall 10 · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | FORTPIERCE | FL |
| 2017-12-20 | 781-445 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NEEDHAM | MA |
| 2017-12-20 | 862-315 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NEWARK | NJ |
| 2017-12-20 | 862-316 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NEWARK | NJ |
| 2017-12-20 | 873-563 | not yet reported which blocks → | Videotron Ltd. | 8306 | Labelle | — |
| 2017-12-20 | 873-564 | not yet reported which blocks → | Videotron Ltd. | 8306 | L'Annonciation | — |
| 2017-12-20 | 873-565 | not yet reported which blocks → | Videotron Ltd. | 8306 | Nominingue | — |
| 2017-12-20 | 907-309 | 0XXX1XXX · 2 holders which blocks → | GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION | 7785 | CHUGIAK | AK |
| 2017-12-20 | 907-421 | 0XXX7XXX which blocks → | GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION | 6872 | KING COVE | AK |
| 2017-12-20 | 910-965 | 0–9 XXXall 10 · 6 holders which blocks → | VONAGE AMERICA LLC | 197D | FAYETTEVL | NC |
| 2017-12-20 | 915-232 | 0–9 XXXall 10 · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | EL PASO | TX |
| 2017-12-20 | 920-677 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NEWFRANKEN | WI |
| 2017-12-20 | 939-419 | 0–9 XXXwhole prefix which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2017-12-20 | 939-775 | 0–9 XXXwhole prefix which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | TRUJILLOAL | PR |
| 2017-12-20 | 989-900 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLCV - MI | 543C | SAGINAW | MI |
| 2017-12-19 | 331-238 | 0–9 XXXall 10 · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | DOWNERSGRV | IL |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.