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
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-09-22 | 506-535 | not yet reported which blocks → | Distributel | 081E | Memramcook | — |
| 2022-09-22 | 506-539 | not yet reported which blocks → | Distributel | 081E | Miramichi | — |
| 2022-09-22 | 506-554 | not yet reported which blocks → | Distributel | 081E | Neguac | — |
| 2022-09-22 | 506-561 | not yet reported which blocks → | Distributel | 081E | Richibucto | — |
| 2022-09-22 | 506-562 | not yet reported which blocks → | Distributel | 081E | Sackville | — |
| 2022-09-22 | 506-563 | not yet reported which blocks → | Distributel | 081E | Shediac | — |
| 2022-09-22 | 506-564 | not yet reported which blocks → | Distributel | 081E | Saint-Antoine | — |
| 2022-09-22 | 506-569 | not yet reported which blocks → | Distributel | 081E | Stanley | — |
| 2022-09-22 | 506-578 | not yet reported which blocks → | Distributel | 081E | St. Louis-de-Kent | — |
| 2022-09-22 | 506-901 | not yet reported which blocks → | Iristel Inc. | 154E | Grand Falls | — |
| 2022-09-22 | 548-577 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Kitchener-Waterloo | — |
| 2022-09-22 | 656-206 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | TAMPAWST | FL |
| 2022-09-22 | 659-260 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - AL | 072F | MONTEVALLO | AL |
| 2022-09-22 | 672-799 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Port Edward | — |
| 2022-09-22 | 753-880 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Arnprior | — |
| 2022-09-22 | 782-335 | not yet reported which blocks → | Distributel | 081E | Baddeck | — |
| 2022-09-22 | 782-336 | not yet reported which blocks → | Distributel | 081E | Cheticamp | — |
| 2022-09-22 | 782-359 | not yet reported which blocks → | Distributel | 081E | Glace Bay | — |
| 2022-09-22 | 782-361 | not yet reported which blocks → | Distributel | 081E | Grand Narrows | — |
| 2022-09-22 | 782-362 | not yet reported which blocks → | Distributel | 081E | Ingonish | — |
| 2022-09-22 | 782-363 | not yet reported which blocks → | Distributel | 081E | Inverness | — |
| 2022-09-22 | 782-364 | not yet reported which blocks → | Distributel | 081E | North Sydney | — |
| 2022-09-22 | 782-367 | not yet reported which blocks → | Distributel | 081E | Sydney | — |
| 2022-09-22 | 863-331 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | WINTER HVN | FL |
| 2022-09-22 | 941-294 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | VENICE | FL |
| 2022-09-22 | 941-297 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | BRADENTON | FL |
| 2022-09-22 | 941-298 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | SARASOTA | FL |
| 2022-09-22 | 952-262 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TWINCITIES | MN |
| 2022-09-21 | 224-485 | 0–9 XXXall 10 · 2 holders which blocks → | NUSO, LLC | 732J | BARRINGTON | IL |
| 2022-09-21 | 315-315 | 0–9 XXXwhole prefix which blocks → | BANDWIDTH.COM CLEC, LLC - NY | 997E | SYRACUSE | NY |
| 2022-09-21 | 346-591 | 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks → | COMCAST IP PHONE, LLC | 318J | PORTER HTS | TX |
| 2022-09-21 | 478-379 | 0–9 XXXall 10 · 4 holders which blocks → | NUSO, LLC | 732J | DUBLIN | GA |
| 2022-09-21 | 480-910 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2022-09-21 | 501-480 | 0–9 XXXall 10 · 3 holders which blocks → | NUSO, LLC | 732J | LITTLEROCK | AR |
| 2022-09-21 | 501-527 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | LITTLEROCK | AR |
| 2022-09-21 | 506-316 | not yet reported which blocks → | Distributel | 081E | Keswick | — |
| 2022-09-21 | 506-418 | not yet reported which blocks → | Distributel | 081E | Chipman | — |
| 2022-09-21 | 506-437 | not yet reported which blocks → | Distributel | 081E | Fredericton | — |
| 2022-09-21 | 506-438 | not yet reported which blocks → | Distributel | 081E | Gagetown | — |
| 2022-09-21 | 506-439 | not yet reported which blocks → | Distributel | 081E | Harvey Station | — |
| 2022-09-21 | 506-483 | not yet reported which blocks → | Distributel | 081E | McAdam | — |
| 2022-09-21 | 506-489 | not yet reported which blocks → | Distributel | 081E | Minto | — |
| 2022-09-21 | 506-490 | not yet reported which blocks → | Distributel | 081E | Nackawic | — |
| 2022-09-21 | 506-491 | not yet reported which blocks → | Distributel | 081E | Oromocto | — |
| 2022-09-21 | 506-492 | not yet reported which blocks → | Distributel | 081E | Bouctouche | — |
| 2022-09-21 | 518-518 | 0–9 XXXwhole prefix which blocks → | BANDWIDTH.COM CLEC, LLC - NY | 997E | ALBANY | NY |
| 2022-09-21 | 564-233 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - WA | 006F | OLYMPIA | WA |
| 2022-09-21 | 574-390 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | 6725 | ELKHART | IN |
| 2022-09-21 | 606-250 | 0–9 XXXall 10 · 3 holders which blocks → | INTEGRATED PATH COMMUNICATIONS - KENTUCKY, LLC-KY | 847H | LONDON | KY |
| 2022-09-21 | 606-455 | 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | INTEGRATED PATH COMMUNICATIONS - KENTUCKY, LLC-KY | 847H | MAYSVILLE | KY |
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.