NumberResearchRecent prefix assignments
354 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026
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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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-08-22 | 769-290 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NATCHEZ | MS |
| 2022-08-19 | 206-796 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - WA | 006F | SEATTLE | WA |
| 2022-08-19 | 260-320 | 0XXX3XXX6XXX · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IN | 105F | MARKLE | IN |
| 2022-08-19 | 269-238 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MI | 991E | KALAMAZOO | MI |
| 2022-08-19 | 308-298 | 9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BUSHNELL | NE |
| 2022-08-19 | 308-347 | 9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DALTON | NE |
| 2022-08-19 | 334-880 | 0–9 XXXwhole prefix which blocks → | ONVOY SPECTRUM, LLC | 624H | DOTHAN | AL |
| 2022-08-19 | 346-581 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2022-08-19 | 380-253 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - OH | 001F | CANALWHSTR | OH |
| 2022-08-19 | 657-616 | 0–9 XXXall 10 · 4 holders which blocks → | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | HUNTITNBCH | CA |
| 2022-08-19 | 725-280 | 0–9 XXXall 10 · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | MTCHARLETN | NV |
| 2022-08-19 | 725-282 | 0XXX4XXX7XXX8XXX · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | NELSON | NV |
| 2022-08-19 | 725-283 | 2XXX3XXX7XXX · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | JEAN | NV |
| 2022-08-19 | 725-284 | 0–9 XXXall 10 · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | LAS VEGAS | NV |
| 2022-08-19 | 769-289 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MS | 992E | MADISON | MS |
| 2022-08-19 | 775-497 | 0XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | FERNLEY | NV |
| 2022-08-19 | 775-498 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | CARSONCITY | NV |
| 2022-08-19 | 775-503 | 0–9 XXXall 10 · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | RENO | NV |
| 2022-08-19 | 775-506 | 0XXX1XXX4XXX7XXX · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SILVER SPG | NV |
| 2022-08-19 | 815-749 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IL | 984E | LOCKPORT | IL |
| 2022-08-19 | 864-813 | 0–9 XXXall 10 · 4 holders which blocks → | WOW! INTERNET, CABLE AND PHONE | 961J | GREENVILLE | SC |
| 2022-08-19 | 940-338 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BOWIE | TX |
| 2022-08-19 | 971-434 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STFRD-SNDY | OR |
| 2022-08-18 | 225-491 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BATONROUGE | LA |
| 2022-08-18 | 343-654 | not yet reported which blocks → | Westport Telephone Company Limited | 920D | Smiths Falls | — |
| 2022-08-18 | 412-546 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| 2022-08-18 | 425-547 | 0–9 XXXall 10 · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | RENTON | WA |
| 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 |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.