NumberResearchRecent prefix assignments
357 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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-12-01 | 582-226 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | REYNOLDSVL | PA |
| 2022-12-01 | 640-240 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ALLENTOWN | NJ |
| 2022-12-01 | 681-393 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PRKRSBGZN1 | WV |
| 2022-12-01 | 828-491 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | HENDERSNVL | NC |
| 2022-12-01 | 862-410 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NEWARK | NJ |
| 2022-12-01 | 873-724 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Emile-de-Suffolk | — |
| 2022-12-01 | 873-726 | not yet reported which blocks → | TELUS Quebec | 2243 | Val-des-Bois | — |
| 2022-12-01 | 912-203 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRUNSWICK | GA |
| 2022-12-01 | 943-206 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | COVINGTON | GA |
| 2022-12-01 | 947-262 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | AUBURN HTS | MI |
| 2022-11-30 | 260-727 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | COLUMBIACY | IN |
| 2022-11-30 | 343-513 | not yet reported which blocks → | Iristel Inc. | 154E | Jockvale | — |
| 2022-11-30 | 401-422 | 0–9 XXXall 10 · 4 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | PAWTUCKET | RI |
| 2022-11-30 | 448-994 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | PACE | FL |
| 2022-11-30 | 727-616 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLEARWATER | FL |
| 2022-11-30 | 769-399 | 0–9 XXXall 10 · 3 holders which blocks → | COMMIO, LLC | 939H | MERIDIAN | MS |
| 2022-11-30 | 839-229 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | WINNSBORO | SC |
| 2022-11-29 | 249-538 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Coldwater | — |
| 2022-11-29 | 249-539 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bala | — |
| 2022-11-29 | 249-540 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Baysville | — |
| 2022-11-29 | 249-554 | not yet reported which blocks → | Iristel Inc. | 154E | Midland | — |
| 2022-11-29 | 252-502 | 0XXX1XXX2XXX which blocks → | ONVOY, LLC - NC | 638E | BAYBORO | NC |
| 2022-11-29 | 438-619 | not yet reported which blocks → | Iristel Inc. | 154E | Lachine | — |
| 2022-11-29 | 684-299 | not yet reported which blocks → | AST TELECOM, LLC | 1460 | AM SAMOA | AS |
| 2022-11-29 | 873-750 | not yet reported which blocks → | Bell Canada | 984C | Ste-Eulalie | — |
| 2022-11-29 | 873-752 | not yet reported which blocks → | Bell Canada | 984C | St-Leonard-d'Aston | — |
| 2022-11-29 | 873-753 | not yet reported which blocks → | Bell Canada | 984C | St-Wenceslas | — |
| 2022-11-29 | 873-754 | not yet reported which blocks → | Bell Canada | 984C | Val-des-Bois | — |
| 2022-11-29 | 986-241 | 0XXX7XXX8XXX9XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLUMERWRLY | ID |
| 2022-11-28 | 319-719 | 0XXX1XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - IA | 221F | VINTON | IA |
| 2022-11-28 | 431-562 | not yet reported which blocks → | Bell West Inc. | 2933 | Steinbach | — |
| 2022-11-28 | 431-563 | not yet reported which blocks → | Bell West Inc. | 2933 | Thompson | — |
| 2022-11-28 | 447-241 | 9XXX which blocks → | BOOST SUBSCRIBERCO L.L.C. | 490J | TAYLORVL | IL |
| 2022-11-28 | 563-201 | 0XXX1XXX2XXX3XXX4XXX7XXX · 6 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DYERSVILLE | IA |
| 2022-11-28 | 873-723 | not yet reported which blocks → | Bell Canada | 984C | Barraute | — |
| 2022-11-28 | 873-725 | not yet reported which blocks → | Bell Canada | 984C | Cheneville | — |
| 2022-11-28 | 873-745 | not yet reported which blocks → | Bell Canada | 984C | Manseau | — |
| 2022-11-28 | 873-748 | not yet reported which blocks → | Bell Canada | 984C | Shawville | — |
| 2022-11-28 | 873-749 | not yet reported which blocks → | Bell Canada | 984C | St-Celestin | — |
| 2022-11-28 | 873-751 | not yet reported which blocks → | Bell Canada | 984C | St-Emile-de-Suffolk | — |
| 2022-11-28 | 930-913 | 3XXX9XXX which blocks → | ONVOY, LLC - IN | 097D | RILEY | IN |
| 2022-11-28 | 939-352 | 0XXX9XXX · 2 holders which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | SAN GERMAN | PR |
| 2022-11-25 | 367-776 | not yet reported which blocks → | TELUS Quebec | 2243 | Quebec | — |
| 2022-11-25 | 431-560 | not yet reported which blocks → | Bell West Inc. | 2933 | Dauphin | — |
| 2022-11-25 | 431-561 | not yet reported which blocks → | Bell West Inc. | 2933 | Selkirk | — |
| 2022-11-23 | 206-865 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - WA | 483E | SEATTLE | WA |
| 2022-11-23 | 225-501 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | BATONROUGE | LA |
| 2022-11-23 | 229-301 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BAINBRIDGE | GA |
| 2022-11-23 | 252-630 | 0XXX1XXX2XXX5XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | PINK HILL | NC |
| 2022-11-23 | 313-698 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLCV - MI | 543C | DETROITZN3 | MI |
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.