NumberResearchRecent prefix assignments
358 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026
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.
Most active assignees, last 30 days
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2012-02-29 | 647-498 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-499 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-503 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 705-421 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Chelmsford | — |
| 2012-02-29 | 705-442 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Blezard Valley | — |
| 2012-02-29 | 705-451 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Hanmer | — |
| 2012-02-29 | 705-453 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Coniston | — |
| 2012-02-29 | 705-459 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Garson | — |
| 2012-02-29 | 705-512 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Azilda | — |
| 2012-02-29 | 719-421 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL PASO | CO |
| 2012-02-29 | 778-403 | not yet reported which blocks → | Iristel Inc. | 154E | Victoria | — |
| 2012-02-29 | 902-809 | not yet reported which blocks → | TELUS Mobility | 8303 | Halifax | — |
| 2012-02-29 | 928-439 | 0XXX2XXX4XXX7XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | DUNCAN | AZ |
| 2012-02-28 | 205-638 | 0–9 XXXwhole prefix which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-28 | 334-602 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 6 holders which blocks → | TROY CABLEVISION, INC. - AL | 208D | ECHO | AL |
| 2012-02-28 | 603-251 | 0XXX1XXX4XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | CHARLESTN | NH |
| 2012-02-28 | 604-381 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Aldergrove | — |
| 2012-02-28 | 646-590 | 0–9 XXXwhole prefix which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | NWYRCYZN01 | NY |
| 2012-02-28 | 702-323 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 TELECOM OF NEVADA, LLC - NV | 7487 | SEARCHLIHT | NV |
| 2012-02-28 | 716-364 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BUFFALO | NY |
| 2012-02-28 | 778-252 | not yet reported which blocks → | TELUS Mobility | 8301 | Revelstoke | — |
| 2012-02-28 | 778-347 | not yet reported which blocks → | TELUS Mobility | 8301 | Abbotsford | — |
| 2012-02-28 | 778-348 | not yet reported which blocks → | TELUS Mobility | 8301 | Campbell River | — |
| 2012-02-28 | 778-650 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2012-02-28 | 778-651 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2012-02-28 | 778-652 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2012-02-28 | 778-653 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2012-02-28 | 857-240 | 0–9 XXXall 10 · 2 holders which blocks → | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | NEWTON | MA |
| 2012-02-28 | 913-216 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS | 6532 | KANSASCITY | KS |
| 2012-02-27 | 219-214 | 0–9 XXXall 10 · 7 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MICHIGANCY | IN |
| 2012-02-27 | 226-271 | not yet reported which blocks → | Iristel Inc. | 154E | London | — |
| 2012-02-27 | 228-438 | 0–9 XXXall 10 · 2 holders which blocks → | LEVEL 3 TELECOM OF MISSISSIPPI, LLC - MS | 220C | BILOXI | MS |
| 2012-02-27 | 289-778 | not yet reported which blocks → | Iristel Inc. | 154E | Hamilton | — |
| 2012-02-27 | 334-305 | not yet reported which blocks → | TROY CABLEVISION, INC. - AL | 208D | DOTHAN | AL |
| 2012-02-27 | 402-814 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | 5807 | EXETER | NE |
| 2012-02-27 | 438-813 | not yet reported which blocks → | Iristel Inc. | 154E | Montreal | — |
| 2012-02-27 | 438-814 | not yet reported which blocks → | Iristel Inc. | 154E | Montreal | — |
| 2012-02-27 | 438-815 | not yet reported which blocks → | Iristel Inc. | 154E | Montreal | — |
| 2012-02-27 | 438-816 | not yet reported which blocks → | Iristel Inc. | 154E | Montreal | — |
| 2012-02-27 | 438-817 | not yet reported which blocks → | Iristel Inc. | 154E | Montreal | — |
| 2012-02-27 | 450-913 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Coteau-Landing | — |
| 2012-02-27 | 478-444 | 0–9 XXXall 10 · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | MACON | GA |
| 2012-02-27 | 581-642 | not yet reported which blocks → | Videotron Ltd. | 8306 | Baie-Comeau (Hauterive) | — |
| 2012-02-27 | 606-765 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | WILLIAMSBG | KY |
| 2012-02-27 | 910-444 | 0–9 XXXall 10 · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | WILMINGTON | NC |
| 2012-02-24 | 203-900 | 0–9 XXXall 10 · 6 holders which blocks → | CSC VOICE, LLC | 612K | GREENWICH | CT |
| 2012-02-24 | 203-914 | 0–9 XXXall 10 · 2 holders which blocks → | CSC VOICE, LLC | 612K | STAMFORD | CT |
| 2012-02-24 | 229-500 | 0–9 XXXall 10 · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | ALBANY | GA |
| 2012-02-24 | 450-605 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Riviere-Beaudette | — |
| 2012-02-24 | 450-606 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | St-Clet | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.