NumberResearchRecent prefix assignments
372 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
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Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2018-07-12 | 631-809 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | DEER PARK | NY |
| 2018-07-12 | 850-905 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - FL | 937C | PACE | FL |
| 2018-07-11 | 205-756 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | BESSEMER | AL |
| 2018-07-11 | 205-761 | 0–9 XXXall 10 · 6 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BIRMINGHAM | AL |
| 2018-07-11 | 225-438 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - LA | 153F | SPRINGFLD | LA |
| 2018-07-11 | 313-217 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MI | 991E | DETROITZN2 | MI |
| 2018-07-11 | 475-241 | 0–9 XXXall 10 · 6 holders which blocks → | METROPCS, INC. | 5562 | NEW HAVEN | CT |
| 2018-07-11 | 480-506 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2018-07-11 | 551-279 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | RAMSEY | NJ |
| 2018-07-11 | 551-281 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2018-07-11 | 581-508 | not yet reported which blocks → | Iristel Inc. | 154E | Baie-Comeau | — |
| 2018-07-11 | 581-509 | not yet reported which blocks → | Iristel Inc. | 154E | Carleton | — |
| 2018-07-11 | 581-512 | not yet reported which blocks → | Iristel Inc. | 154E | Bonaventure | — |
| 2018-07-11 | 581-513 | not yet reported which blocks → | Iristel Inc. | 154E | Matapedia | — |
| 2018-07-11 | 581-514 | not yet reported which blocks → | Iristel Inc. | 154E | New Richmond | — |
| 2018-07-11 | 779-257 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IL | 984E | WILMINGTON | IL |
| 2018-07-11 | 838-945 | 0XXX1XXX3XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | STATE TEL LONG DIST CO INC DBA STATE TEL-ATHENS-NY | 063J | ATHENS | NY |
| 2018-07-11 | 901-427 | 0–9 XXXall 10 · 3 holders which blocks → | WEST KENTUCKY & TENNESSEE TELECOMMUNICATIONS CO-OP | 337J | MEMPHIS | TN |
| 2018-07-11 | 929-482 | 0–9 XXXall 10 · 8 holders which blocks → | METROPCS, INC. | 5562 | NWYRCYZN14 | NY |
| 2018-07-10 | 515-217 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DES MOINES | IA |
| 2018-07-10 | 786-627 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PERRINE | FL |
| 2018-07-10 | 850-876 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - FL | 937C | PENSACOLA | FL |
| 2018-07-10 | 873-549 | not yet reported which blocks → | Videotron Ltd. | 8306 | La Patrie | — |
| 2018-07-10 | 873-550 | not yet reported which blocks → | Videotron Ltd. | 8306 | Lac-Megantic | — |
| 2018-07-10 | 873-551 | not yet reported which blocks → | Videotron Ltd. | 8306 | Lac-Drolet | — |
| 2018-07-10 | 971-329 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BEAVERTON | OR |
| 2018-07-09 | 226-605 | not yet reported which blocks → | Iristel Inc. | 154E | Essex | — |
| 2018-07-09 | 226-795 | not yet reported which blocks → | Iristel Inc. | 154E | Woodstock | — |
| 2018-07-09 | 226-803 | not yet reported which blocks → | Iristel Inc. | 154E | Windsor | — |
| 2018-07-09 | 249-510 | not yet reported which blocks → | Iristel Inc. | 154E | Peterborough | — |
| 2018-07-09 | 343-339 | not yet reported which blocks → | Iristel Inc. | 154E | Merrickville | — |
| 2018-07-09 | 506-497 | not yet reported which blocks → | Iristel Inc. | 154E | Woodstock | — |
| 2018-07-09 | 639-386 | not yet reported which blocks → | Iristel Inc. | 154E | Kipling | — |
| 2018-07-09 | 737-980 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → | INVOXIO INCORPORATED | 158H | COUPLAND | TX |
| 2018-07-09 | 902-713 | not yet reported which blocks → | Iristel Inc. | 154E | Kentville | — |
| 2018-07-09 | 914-335 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | WSCHSTZN04 | NY |
| 2018-07-09 | 929-480 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NY | 997E | NWYRCYZN06 | NY |
| 2018-07-09 | 939-210 | 0–9 XXXall 10 · 4 holders which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2018-07-06 | 208-923 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 4 holders which blocks → | ONVOY, LLC - ID | 689F | GARDEN VLY | ID |
| 2018-07-06 | 208-974 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - ID | 689F | HOMEDALE | ID |
| 2018-07-06 | 249-508 | not yet reported which blocks → | Iristel Inc. | 154E | Algoma Mills | — |
| 2018-07-06 | 249-509 | not yet reported which blocks → | Iristel Inc. | 154E | Campbellford | — |
| 2018-07-06 | 365-399 | not yet reported which blocks → | Iristel Inc. | 154E | Cobourg | — |
| 2018-07-06 | 587-715 | not yet reported which blocks → | Iristel Inc. | 154E | Blackfalds | — |
| 2018-07-06 | 587-912 | not yet reported which blocks → | Iristel Inc. | 154E | Coaldale | — |
| 2018-07-06 | 641-501 | 0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | WINDSTREAM MONTEZUMA, LLC | 1248 | MONTEZUMA | IA |
| 2018-07-06 | 712-897 | 7XXX9XXX · 2 holders which blocks → | WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS | 1170 | AVOCA | IA |
| 2018-07-06 | 873-547 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Malo | — |
| 2018-07-06 | 873-548 | not yet reported which blocks → | Videotron Ltd. | 8306 | Scotstown | — |
| 2018-07-06 | 959-204 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | HARTFORD | CT |
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.