NumberResearchRecent prefix assignments
338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026
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
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-06-21 | 431-963 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Lac Du Bonnet | — |
| 2022-06-21 | 431-964 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Pine Falls | — |
| 2022-06-21 | 431-965 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Altona | — |
| 2022-06-21 | 431-966 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Lundar | — |
| 2022-06-21 | 431-967 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Woodlands | — |
| 2022-06-21 | 431-968 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Garden Hill | — |
| 2022-06-21 | 437-424 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2022-06-21 | 469-960 | 0–9 XXXall 10 · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | DALLAS | TX |
| 2022-06-21 | 657-597 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-06-21 | 972-565 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FRISCO | TX |
| 2022-06-20 | 367-200 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Boischatel | — |
| 2022-06-20 | 367-222 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Loretteville | — |
| 2022-06-20 | 367-300 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Notre-Dame-des-Laurentides | — |
| 2022-06-20 | 367-333 | not yet reported which blocks → | IXICA Communications Inc. | 812H | St-Fereol | — |
| 2022-06-20 | 367-400 | not yet reported which blocks → | IXICA Communications Inc. | 812H | St-Jean-ile-d'Orleans | — |
| 2022-06-20 | 367-500 | not yet reported which blocks → | IXICA Communications Inc. | 812H | St-Tite-des-Caps | — |
| 2022-06-20 | 367-600 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ste-Anne-de-Beaupre | — |
| 2022-06-20 | 367-666 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ste-Brigitte-de-Laval | — |
| 2022-06-20 | 367-667 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ste-Catherine | — |
| 2022-06-20 | 367-900 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Valcartier | — |
| 2022-06-20 | 581-404 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Quebec | — |
| 2022-06-17 | 249-429 | not yet reported which blocks → | Fibernetics Corporation | 464D | Missanabie | — |
| 2022-06-17 | 249-430 | not yet reported which blocks → | Fibernetics Corporation | 464D | Noelville | — |
| 2022-06-17 | 249-438 | not yet reported which blocks → | Fibernetics Corporation | 464D | Oba | — |
| 2022-06-17 | 249-439 | not yet reported which blocks → | Fibernetics Corporation | 464D | Ramsay | — |
| 2022-06-17 | 249-440 | not yet reported which blocks → | Fibernetics Corporation | 464D | Silverwater | — |
| 2022-06-17 | 249-441 | not yet reported which blocks → | Fibernetics Corporation | 464D | Spanish | — |
| 2022-06-17 | 249-442 | not yet reported which blocks → | Fibernetics Corporation | 464D | Sultan | — |
| 2022-06-17 | 249-443 | not yet reported which blocks → | Fibernetics Corporation | 464D | Wawa | — |
| 2022-06-17 | 249-446 | not yet reported which blocks → | Fibernetics Corporation | 464D | Westree | — |
| 2022-06-17 | 249-447 | not yet reported which blocks → | Fibernetics Corporation | 464D | Whitefish | — |
| 2022-06-17 | 249-448 | not yet reported which blocks → | Fibernetics Corporation | 464D | Whitefish Falls | — |
| 2022-06-17 | 279-221 | 0–9 XXXall 10 · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | SCRM MAIN | CA |
| 2022-06-17 | 470-973 | 0–9 XXXall 10 · 7 holders which blocks → | VONAGE AMERICA LLC | 197D | BARNESVL | GA |
| 2022-06-17 | 470-978 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | GAINESVL | GA |
| 2022-06-17 | 470-979 | 0–9 XXXwhole prefix which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | ATLANTA NE | GA |
| 2022-06-17 | 470-983 | 0–9 XXXwhole prefix which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | ATLANTA NE | GA |
| 2022-06-17 | 628-284 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC CNTRL | CA |
| 2022-06-17 | 657-594 | 0–9 XXXall 10 · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | ANAHEIM | CA |
| 2022-06-17 | 681-397 | 6XXX which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - WV | 077G | RAINELLE | WV |
| 2022-06-17 | 865-417 | 0XXX1XXX3XXX8XXX9XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | GATLINBURG | TN |
| 2022-06-17 | 930-399 | 9XXX which blocks → | TERRA NOVA TELECOM INC. | 145J | BLOOMINGTN | IN |
| 2022-06-17 | 986-214 | 0XXX1XXX8XXX · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | BLUEBELL | ID |
| 2022-06-16 | 325-275 | 0–9 XXXall 10 · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | ABILENE | TX |
| 2022-06-16 | 406-613 | 0–9 XXXall 10 · 6 holders which blocks → | CENTURYLINK COMMUNICATIONS, LLC | 508J | BOZEMAN | MT |
| 2022-06-16 | 431-366 | not yet reported which blocks → | Bell Mobility | 6574 | Steinbach | — |
| 2022-06-16 | 432-261 | 1XXX4XXX8XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | MIDLAND | TX |
| 2022-06-16 | 650-664 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MT VIEW | CA |
| 2022-06-16 | 806-460 | 0–9 XXXall 10 · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | AMARILLO | TX |
| 2022-06-16 | 806-815 | 0–9 XXXall 10 · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | LUBBOCK | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.