Recent prefix assignments
347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026
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 |
|---|---|---|---|---|---|---|
| 2018-02-16 | 407-652 | 0–9 XXXall 10 · 6 holders which blocks → | EXIANT COMMUNICATIONS LLC | 114J | ORLANDO | FL |
| 2018-02-16 | 540-619 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | MT GILEAD | VA |
| 2018-02-16 | 563-800 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC - IA | 221F | CALMAR | IA |
| 2018-02-16 | 641-800 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - IA | 221F | ACKLEY | IA |
| 2018-02-16 | 641-999 | 0–9 XXXall 10 · 7 holders which blocks → | ONVOY, LLC - IA | 221F | NASHUA | IA |
| 2018-02-16 | 786-584 | 0–9 XXXall 10 · 4 holders which blocks → | EXIANT COMMUNICATIONS LLC | 114J | MIAMI | FL |
| 2018-02-16 | 805-515 | 0–9 XXXall 10 · 6 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | VNTRA CNTL | CA |
| 2018-02-16 | 814-809 | 0–9 XXXall 10 · 4 holders which blocks → | PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA | 967E | JOHNSTOWN | PA |
| 2018-02-16 | 906-422 | 0–9 XXXall 10 · 4 holders which blocks → | CENTURYLINK COMMUNICATIONS, LLC | 508J | MACKINACIS | MI |
| 2018-02-16 | 939-464 | 0–9 XXXwhole prefix which blocks → | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | BAYAMONNOR | PR |
| 2018-02-15 | 469-393 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | ALLEN | TX |
| 2018-02-15 | 470-407 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - GA | 067D | ATLANTA | GA |
| 2018-02-15 | 508-206 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NATICK | MA |
| 2018-02-15 | 551-319 | 0–9 XXXall 10 · 7 holders which blocks → | ONVOY, LLC - NJ | 637C | WYCKOFF | NJ |
| 2018-02-15 | 579-303 | not yet reported which blocks → | Distributel | 083E | Ste-Therese | — |
| 2018-02-15 | 579-304 | not yet reported which blocks → | Distributel | 083E | St-Jerome | — |
| 2018-02-15 | 579-305 | not yet reported which blocks → | Distributel | 083E | St-Hyacinthe | — |
| 2018-02-15 | 585-639 | 0–9 XXXall 10 · 4 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | BROCKPORT | NY |
| 2018-02-15 | 628-561 | 0–9 XXXall 10 · 5 holders which blocks → | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | STNSN-BLNS | CA |
| 2018-02-15 | 770-637 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - GA | 067D | TEMPLE | GA |
| 2018-02-15 | 845-410 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | HIGH FALLS | NY |
| 2018-02-15 | 971-289 | 0–9 XXXall 10 · 5 holders which blocks → | PEERLESS NETWORK OF OREGON, LLC - OR | 157F | DALLAS | OR |
| 2018-02-14 | 207-387 | 0–9 XXXall 10 · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - ME | 882G | PORTLAND | ME |
| 2018-02-14 | 252-999 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - NC | 638E | GREENVILLE | NC |
| 2018-02-14 | 782-469 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Country Harbour | — |
| 2018-02-14 | 782-474 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Melrose | — |
| 2018-02-14 | 782-476 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Freeport | — |
| 2018-02-14 | 782-477 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Port Dufferin | — |
| 2018-02-14 | 782-478 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Lake Charlotte | — |
| 2018-02-14 | 782-481 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Tangier | — |
| 2018-02-14 | 804-522 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | MECHANCSVL | VA |
| 2018-02-14 | 807-255 | not yet reported which blocks → | KMTS, a division of Bell Canada | 8218 | Kenora | — |
| 2018-02-14 | 807-265 | not yet reported which blocks → | Dryden Municipal Telephone System | 8210 | Dryden | — |
| 2018-02-14 | 825-351 | not yet reported which blocks → | Bell West Inc. | 2933 | Calgary | — |
| 2018-02-14 | 825-352 | not yet reported which blocks → | Bell West Inc. | 2933 | Medicine Hat | — |
| 2018-02-14 | 825-353 | not yet reported which blocks → | Bell West Inc. | 2933 | Edmonton | — |
| 2018-02-14 | 825-354 | not yet reported which blocks → | Bell West Inc. | 2933 | Grande Prairie | — |
| 2018-02-14 | 825-355 | not yet reported which blocks → | Bell West Inc. | 2933 | Lethbridge | — |
| 2018-02-14 | 825-356 | not yet reported which blocks → | Bell West Inc. | 2933 | Red Deer | — |
| 2018-02-14 | 825-357 | not yet reported which blocks → | Bell West Inc. | 2933 | Fort McMurray | — |
| 2018-02-14 | 825-358 | not yet reported which blocks → | Bell West Inc. | 2933 | St. Albert | — |
| 2018-02-14 | 870-380 | 0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | E. RITTER COMMUNICATIONS, LLC | 128L | PINE BLUFF | AR |
| 2018-02-13 | 236-491 | not yet reported which blocks → | Bell West Inc. | 2933 | Victoria | — |
| 2018-02-13 | 236-492 | not yet reported which blocks → | Bell West Inc. | 2933 | Kelowna | — |
| 2018-02-13 | 236-493 | not yet reported which blocks → | Bell West Inc. | 2933 | Abbotsford | — |
| 2018-02-13 | 236-494 | not yet reported which blocks → | Bell West Inc. | 2933 | Prince George | — |
| 2018-02-13 | 236-495 | not yet reported which blocks → | Bell West Inc. | 2933 | Vancouver | — |
| 2018-02-13 | 236-496 | not yet reported which blocks → | Bell West Inc. | 2933 | Nanaimo | — |
| 2018-02-13 | 236-497 | not yet reported which blocks → | Bell West Inc. | 2933 | Vernon | — |
| 2018-02-13 | 236-498 | not yet reported which blocks → | Bell West Inc. | 2933 | Penticton | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.