NumberResearchRecent prefix assignments
349 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 |
|---|---|---|---|---|---|---|
| 2022-08-18 | 437-436 | not yet reported which blocks → | Videotron Ltd. | 787G | Toronto | — |
| 2022-08-18 | 504-414 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - LA | 153F | JESUITBEND | LA |
| 2022-08-18 | 548-280 | not yet reported which blocks → | Distributel | 082E | Clinton | — |
| 2022-08-18 | 548-281 | not yet reported which blocks → | Distributel | 082E | Goderich | — |
| 2022-08-18 | 548-283 | not yet reported which blocks → | Distributel | 082E | Seaforth | — |
| 2022-08-18 | 548-284 | not yet reported which blocks → | Distributel | 082E | Wingham | — |
| 2022-08-18 | 579-827 | not yet reported which blocks → | Iristel Inc. | 154E | Valleyfield | — |
| 2022-08-18 | 585-640 | 0XXX1XXX3XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | MIDDLEPORT | NY |
| 2022-08-18 | 672-972 | not yet reported which blocks → | TELUS Mobility | 8301 | Abbotsford | — |
| 2022-08-18 | 672-973 | not yet reported which blocks → | TELUS Mobility | 8301 | Clearwater | — |
| 2022-08-18 | 709-966 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hare Bay | — |
| 2022-08-18 | 709-967 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Corner Brook | — |
| 2022-08-18 | 709-968 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Deer Lake | — |
| 2022-08-18 | 709-969 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Gander | — |
| 2022-08-18 | 709-970 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Grand Falls | — |
| 2022-08-18 | 709-971 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Lewisporte | — |
| 2022-08-18 | 709-972 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Springdale | — |
| 2022-08-18 | 709-973 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Stephenville | — |
| 2022-08-18 | 709-974 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Port Aux Basques | — |
| 2022-08-18 | 709-975 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Labrador City - Wabush | — |
| 2022-08-18 | 825-790 | not yet reported which blocks → | Iristel Inc. | 154E | Lethbridge | — |
| 2022-08-18 | 825-891 | not yet reported which blocks → | Iristel Inc. | 154E | Red Deer | — |
| 2022-08-18 | 839-219 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NEWBERRY | SC |
| 2022-08-18 | 929-637 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN04 | NY |
| 2022-08-18 | 929-638 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN05 | NY |
| 2022-08-18 | 929-639 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN11 | NY |
| 2022-08-18 | 941-292 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | PALMETTO | FL |
| 2022-08-17 | 346-580 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - TX | 004F | CYPRESS | TX |
| 2022-08-17 | 445-253 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | PHLDLPHZN3 | PA |
| 2022-08-17 | 505-528 | 0–9 XXXwhole prefix which blocks → | ONVOY SPECTRUM, LLC | 624H | ALBUQURQUE | NM |
| 2022-08-17 | 720-960 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2022-08-17 | 720-968 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2022-08-17 | 850-850 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - FL | 937C | MOLINO | FL |
| 2022-08-16 | 240-947 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2022-08-16 | 331-313 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | NAPERVILLE | IL |
| 2022-08-16 | 430-298 | 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | CANTON | TX |
| 2022-08-16 | 431-246 | not yet reported which blocks → | Fibernetics Corporation | 464D | Rathwell | — |
| 2022-08-16 | 431-247 | not yet reported which blocks → | Fibernetics Corporation | 464D | Roland | — |
| 2022-08-16 | 431-248 | not yet reported which blocks → | Fibernetics Corporation | 464D | Sidney | — |
| 2022-08-16 | 431-249 | not yet reported which blocks → | Fibernetics Corporation | 464D | Somerset | — |
| 2022-08-16 | 431-250 | not yet reported which blocks → | Fibernetics Corporation | 464D | Sperling | — |
| 2022-08-16 | 431-375 | not yet reported which blocks → | Fibernetics Corporation | 464D | St. Adolphe | — |
| 2022-08-16 | 431-376 | not yet reported which blocks → | Fibernetics Corporation | 464D | St. Claude | — |
| 2022-08-16 | 431-377 | not yet reported which blocks → | Fibernetics Corporation | 464D | St. Francois Xavier | — |
| 2022-08-16 | 431-378 | not yet reported which blocks → | Fibernetics Corporation | 464D | Starbuck | — |
| 2022-08-16 | 431-379 | not yet reported which blocks → | Fibernetics Corporation | 464D | Stephenfield | — |
| 2022-08-16 | 464-207 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2022-08-16 | 571-569 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - VA | 079F | MANASSAS | VA |
| 2022-08-16 | 629-280 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | MURFREESBO | TN |
| 2022-08-16 | 667-410 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
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.