NumberResearchRecent prefix assignments
341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026
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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-02-14 | 920-792 | 0XXX2XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NEWTON | WI |
| 2022-02-14 | 929-993 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | NWYRCYZN13 | NY |
| 2022-02-14 | 939-330 | 0–9 XXXwhole prefix which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2022-02-14 | 939-342 | 0–9 XXXall 10 · 2 holders which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | CAROLINA | PR |
| 2022-02-14 | 939-449 | 0–9 XXXwhole prefix which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | TRUJILLOAL | PR |
| 2022-02-14 | 939-641 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | MAYAGUEZ | PR |
| 2022-02-14 | 986-225 | 0XXX1XXX2XXX5XXX8XXX · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | MARSING | ID |
| 2022-02-14 | 986-227 | 0XXX2XXX7XXX · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - ID | 192F | DONNELLY | ID |
| 2022-02-14 | 986-245 | 0XXX4XXX · 2 holders which blocks → | DIRECT COMMUNICATIONS ROCKLAND, INC. | 2232 | ROCKLAND | ID |
| 2022-02-14 | 986-646 | 4XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | OAKLEY | ID |
| 2022-02-11 | 272-782 | 0XXX1XXX2XXX7XXX8XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NUMIDIA | PA |
| 2022-02-11 | 279-219 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | FOLSOM | CA |
| 2022-02-11 | 351-230 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | LEOMINSTER | MA |
| 2022-02-11 | 351-746 | 7XXX9XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WINCHENDON | MA |
| 2022-02-11 | 352-773 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WEEKICHSPG | FL |
| 2022-02-11 | 430-306 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | EMORY | TX |
| 2022-02-11 | 434-683 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CLOVER | VA |
| 2022-02-11 | 470-926 | 0–9 XXXwhole prefix which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | WINDER | GA |
| 2022-02-11 | 470-930 | 0–9 XXXwhole prefix which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | GAINESVL | GA |
| 2022-02-11 | 539-280 | 0XXX1XXX · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - OK | 119F | HOMINY | OK |
| 2022-02-11 | 548-423 | not yet reported which blocks → | Quadro Communications Co-operative Inc. | 004G | Beachville | — |
| 2022-02-11 | 548-425 | not yet reported which blocks → | Quadro Communications Co-operative Inc. | 004G | Ingersoll | — |
| 2022-02-11 | 563-342 | 3XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | RYAN | IA |
| 2022-02-11 | 563-466 | 3XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | VOLGA | IA |
| 2022-02-11 | 689-274 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SANFORD | FL |
| 2022-02-11 | 762-726 | 0–9 XXXall 10 · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ROME | GA |
| 2022-02-11 | 805-840 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | ARROYOGRND | CA |
| 2022-02-11 | 857-468 | 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CHARLESTN | MA |
| 2022-02-11 | 857-832 | 0–9 XXXall 10 · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BRIGHTON | MA |
| 2022-02-11 | 863-466 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | OKEECHOBEE | FL |
| 2022-02-11 | 872-318 | 0–9 XXXall 10 · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN01 | IL |
| 2022-02-11 | 878-265 | 0XXX1XXX2XXX7XXX8XXX9XXX · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - PA | 002F | CALIFORNIA | PA |
| 2022-02-11 | 920-752 | 0XXX9XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | REDGRANITE | WI |
| 2022-02-11 | 929-678 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | NWYRCYZN06 | NY |
| 2022-02-11 | 929-789 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | NWYRCYZN09 | NY |
| 2022-02-11 | 929-919 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | NWYRCYZN08 | NY |
| 2022-02-11 | 929-989 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | NWYRCYZN03 | NY |
| 2022-02-11 | 929-996 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | NWYRCYZN05 | NY |
| 2022-02-11 | 931-643 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → | POWERTEL NASHVILLE LICENSES, INC. | 7476 | LEWISBURG | TN |
| 2022-02-11 | 947-259 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SOUTHFIELD | MI |
| 2022-02-11 | 986-226 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2022-02-11 | 986-313 | 0–9 XXXall 10 · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | BURLEY | ID |
| 2022-02-10 | 209-919 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | OAKDALE | CA |
| 2022-02-10 | 209-963 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNRA JUNO | CA |
| 2022-02-10 | 240-924 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MD | 071F | MOUNT AIRY | MD |
| 2022-02-10 | 276-927 | 0XXX1XXX2XXX3XXX4XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | STUART | VA |
| 2022-02-10 | 424-473 | 0–9 XXXall 10 · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | SAN PEDRO | CA |
| 2022-02-10 | 431-413 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Falcon Lake | — |
| 2022-02-10 | 431-414 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Lac Du Bonnet | — |
| 2022-02-10 | 431-415 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Minnedosa | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.