NumberResearchRecent prefix assignments
358 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 |
|---|---|---|---|---|---|---|
| 2022-03-30 | 742-369 | not yet reported which blocks → | FGLTEL Inc. | 139J | Bethesda | — |
| 2022-03-30 | 742-370 | not yet reported which blocks → | FGLTEL Inc. | 139J | Bolton | — |
| 2022-03-30 | 742-371 | not yet reported which blocks → | FGLTEL Inc. | 139J | Claremont | — |
| 2022-03-30 | 742-372 | not yet reported which blocks → | FGLTEL Inc. | 139J | Gormley | — |
| 2022-03-30 | 742-373 | not yet reported which blocks → | FGLTEL Inc. | 139J | Keswick | — |
| 2022-03-30 | 742-385 | not yet reported which blocks → | FGLTEL Inc. | 139J | Richmond Hill | — |
| 2022-03-30 | 843-955 | 0–9 XXXall 10 · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | CHARLESTON | SC |
| 2022-03-30 | 904-319 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | JACKSONVL | FL |
| 2022-03-30 | 929-867 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN15 | NY |
| 2022-03-30 | 938-207 | 0–9 XXXall 10 · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | HUNTSVILLE | AL |
| 2022-03-29 | 380-245 | 0–9 XXXall 10 · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | COLUMBUS | OH |
| 2022-03-29 | 386-331 | 0–9 XXXall 10 · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | DAYTONABCH | FL |
| 2022-03-29 | 431-543 | not yet reported which blocks → | Fibernetics Corporation | 464D | Amaranth | — |
| 2022-03-29 | 431-544 | not yet reported which blocks → | Fibernetics Corporation | 464D | Austin | — |
| 2022-03-29 | 431-545 | not yet reported which blocks → | Fibernetics Corporation | 464D | Crystal City | — |
| 2022-03-29 | 431-546 | not yet reported which blocks → | Fibernetics Corporation | 464D | Edwin | — |
| 2022-03-29 | 431-547 | not yet reported which blocks → | Fibernetics Corporation | 464D | Elm Creek | — |
| 2022-03-29 | 431-548 | not yet reported which blocks → | Fibernetics Corporation | 464D | Gladstone | — |
| 2022-03-29 | 431-549 | not yet reported which blocks → | Fibernetics Corporation | 464D | Hazelridge | — |
| 2022-03-29 | 431-550 | not yet reported which blocks → | Fibernetics Corporation | 464D | Holland | — |
| 2022-03-29 | 431-551 | not yet reported which blocks → | Fibernetics Corporation | 464D | Langruth | — |
| 2022-03-29 | 431-783 | not yet reported which blocks → | Fibernetics Corporation | 464D | Miami | — |
| 2022-03-29 | 431-784 | not yet reported which blocks → | Fibernetics Corporation | 464D | Notre Dame de Lourdes | — |
| 2022-03-29 | 431-785 | not yet reported which blocks → | Fibernetics Corporation | 464D | Oakville | — |
| 2022-03-29 | 431-786 | not yet reported which blocks → | Fibernetics Corporation | 464D | Poplar Point | — |
| 2022-03-29 | 539-283 | 0–9 XXXall 10 · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | TULSA | OK |
| 2022-03-29 | 672-823 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Lillooet | — |
| 2022-03-29 | 672-824 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Little Fort | — |
| 2022-03-29 | 725-273 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | 6458 | LAUGHLIN | NV |
| 2022-03-29 | 754-288 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | FTLAUDERDL | FL |
| 2022-03-29 | 771-222 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC | 6402 | WSHNGTNZN1 | DC |
| 2022-03-29 | 904-835 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | JACKSONVL | FL |
| 2022-03-29 | 971-825 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CLACKAMAS | OR |
| 2022-03-28 | 216-489 | 0–9 XXXall 10 · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | CLEVELAND | OH |
| 2022-03-28 | 223-281 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - PA | 002F | COLUMBIA | PA |
| 2022-03-28 | 251-386 | 0–9 XXXall 10 · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | MOBILE | AL |
| 2022-03-28 | 318-821 | 0–9 XXXall 10 · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | MONROE | LA |
| 2022-03-28 | 343-223 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Chalk River | — |
| 2022-03-28 | 365-875 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Castleton | — |
| 2022-03-28 | 412-792 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | PTTSBGZON7 | PA |
| 2022-03-28 | 412-797 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | PTGSBNZN12 | PA |
| 2022-03-28 | 412-887 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | PTGSBNZN10 | PA |
| 2022-03-28 | 417-716 | 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | BOOST SUBSCRIBERCO L.L.C. | 490J | OZARK | MO |
| 2022-03-28 | 505-517 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | 6573 | AZTEC | NM |
| 2022-03-28 | 520-643 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WILLCOX | AZ |
| 2022-03-28 | 539-295 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - OK | 119F | TAHLEQUAH | OK |
| 2022-03-28 | 548-837 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hillsburgh | — |
| 2022-03-28 | 579-367 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Hippolyte | — |
| 2022-03-28 | 579-376 | not yet reported which blocks → | TELUS Quebec | 2243 | Hemmingford | — |
| 2022-03-28 | 601-461 | 0–9 XXXall 10 · 3 holders which blocks → | POWERTEL MEMPHIS LICENSES, INC. | 7474 | VICKSBURG | MS |
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.