NumberResearchRecent 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.
Most active assignees, last 30 days
New assignments by month
Sep 2026
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Dec 2025
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Oct 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2017-05-16 | 272-335 | 0–9 XXXall 10 · 7 holders which blocks → | METROPCS, INC. | 5562 | SHAMOKIN | PA |
| 2017-05-16 | 774-344 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OXFORD | MA |
| 2017-05-16 | 848-261 | 0–9 XXXall 10 · 8 holders which blocks → | CABLEVISION LIGHTPATH, INC. - NJ | 4948 | LAKEWOOD | NJ |
| 2017-05-16 | 857-290 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NEWTON | MA |
| 2017-05-16 | 939-234 | 0XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → | LIBERTY MOBILE PUERTO RICO INC. | 8305 | CANOVANAS | PR |
| 2017-05-15 | 267-768 | 0–9 XXXall 10 · 6 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN1 | PA |
| 2017-05-15 | 346-257 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | KATY | TX |
| 2017-05-15 | 431-937 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Roblin | — |
| 2017-05-15 | 470-582 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - GA | 983E | ATLANTA | GA |
| 2017-05-15 | 470-606 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | 6540 | ATLANTA | GA |
| 2017-05-15 | 470-646 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - GA | 983E | SOCIALCRCL | GA |
| 2017-05-15 | 639-401 | not yet reported which blocks → | SaskTel Mobility | 9868 | Alvena | — |
| 2017-05-15 | 639-402 | not yet reported which blocks → | SaskTel Mobility | 9868 | Balcarres | — |
| 2017-05-15 | 639-404 | not yet reported which blocks → | SaskTel Mobility | 9868 | Cudworth | — |
| 2017-05-15 | 639-405 | not yet reported which blocks → | SaskTel Mobility | 9868 | Cupar | — |
| 2017-05-15 | 639-406 | not yet reported which blocks → | SaskTel Mobility | 9868 | Edam | — |
| 2017-05-15 | 639-407 | not yet reported which blocks → | SaskTel Mobility | 9868 | Francis | — |
| 2017-05-15 | 639-408 | not yet reported which blocks → | SaskTel Mobility | 9868 | Hague | — |
| 2017-05-15 | 639-409 | not yet reported which blocks → | SaskTel Mobility | 9868 | Holdfast | — |
| 2017-05-15 | 639-410 | not yet reported which blocks → | SaskTel Mobility | 9868 | Meacham | — |
| 2017-05-15 | 639-412 | not yet reported which blocks → | SaskTel Mobility | 9868 | North Portal | — |
| 2017-05-15 | 639-413 | not yet reported which blocks → | SaskTel Mobility | 9868 | Odessa | — |
| 2017-05-15 | 639-414 | not yet reported which blocks → | SaskTel Mobility | 9868 | Theodore | — |
| 2017-05-15 | 639-415 | not yet reported which blocks → | SaskTel Mobility | 9868 | Wawota | — |
| 2017-05-15 | 639-416 | not yet reported which blocks → | SaskTel Mobility | 9868 | Yellow Grass | — |
| 2017-05-15 | 720-908 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2017-05-15 | 928-882 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - AZ | 587F | WINSLOW | AZ |
| 2017-05-12 | 343-983 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Cornwall | — |
| 2017-05-12 | 973-554 | 0–9 XXXall 10 · 7 holders which blocks → | CABLEVISION LIGHTPATH, INC. - NJ | 4948 | ROCKAWAY | NJ |
| 2017-05-12 | 984-989 | 0–9 XXXall 10 · 4 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | CLAYTON | NC |
| 2017-05-11 | 236-823 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Gulf Islands | — |
| 2017-05-11 | 249-982 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Sault Ste. Marie | — |
| 2017-05-11 | 249-983 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | North Bay | — |
| 2017-05-11 | 332-777 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC- NY | 384C | NWYRCYZN01 | NY |
| 2017-05-11 | 343-481 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Iroquois | — |
| 2017-05-11 | 343-482 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Williamsburg | — |
| 2017-05-11 | 343-982 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Brockville | — |
| 2017-05-11 | 417-402 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2017-05-11 | 470-347 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | 6540 | NEWNAN | GA |
| 2017-05-11 | 470-591 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | 6540 | ATLANTA | GA |
| 2017-05-11 | 470-615 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - GA | 983E | ATLANTA SO | GA |
| 2017-05-11 | 548-980 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Goderich | — |
| 2017-05-11 | 770-247 | 0–9 XXXwhole prefix which blocks → | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2017-05-11 | 782-888 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Halifax | — |
| 2017-05-11 | 782-972 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Yarmouth | — |
| 2017-05-11 | 782-978 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | New Glasgow | — |
| 2017-05-10 | 302-274 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WILMINGTON | DE |
| 2017-05-10 | 336-967 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NC | 998E | KERNERSVL | NC |
| 2017-05-10 | 442-334 | 0–9 XXXall 10 · 7 holders which blocks → | TELNYX LLC | 073H | PALMDESERT | CA |
| 2017-05-10 | 502-591 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GEORGETOWN | KY |
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.