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
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-09-23 | 308-419 | 9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SODTOWN | NE |
| 2022-09-23 | 385-533 | 0–9 XXXall 10 · 5 holders which blocks → | COMMIO, LLC | 939H | CLEARFIELD | UT |
| 2022-09-23 | 417-618 | 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | SPRINGFLD | MO |
| 2022-09-23 | 478-203 | 0–9 XXXall 10 · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | MACON | GA |
| 2022-09-23 | 530-930 | 0–9 XXXall 10 · 5 holders which blocks → | RACE TELECOMMUNICATIONS, INC. - CA | 973E | MARYSVILLE | CA |
| 2022-09-23 | 531-290 | 9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PILGER | NE |
| 2022-09-23 | 531-296 | 0XXX2XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CEDAR BLF | NE |
| 2022-09-23 | 531-297 | 8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAKEFIELD | NE |
| 2022-09-23 | 531-303 | 3XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | POLK | NE |
| 2022-09-23 | 531-312 | 0XXX1XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TAMORA | NE |
| 2022-09-23 | 531-338 | 0XXX2XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAVID CITY | NE |
| 2022-09-23 | 531-441 | 0XXX1XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MEAD | NE |
| 2022-09-23 | 623-301 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2022-09-23 | 681-458 | 0XXX1XXX2XXX8XXX9XXX which blocks → | COMMIO, LLC | 939H | OCEANA | WV |
| 2022-09-23 | 737-334 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2022-09-23 | 762-327 | 0–9 XXXall 10 · 3 holders which blocks → | COMCAST IP PHONE, LLC | 318J | ROME | GA |
| 2022-09-23 | 762-362 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | LAGRANGE | GA |
| 2022-09-23 | 804-953 | 0–9 XXXall 10 · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA | 7238 | PETERSBURG | VA |
| 2022-09-23 | 816-549 | 0–9 XXXall 10 · 2 holders which blocks → | COMMIO, LLC | 939H | BELTON | MO |
| 2022-09-23 | 828-671 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | HENDERSNVL | NC |
| 2022-09-22 | 212-347 | 0–9 XXXwhole prefix which blocks → | ONVOY SPECTRUM, LLC | 624H | NWYRCYZN01 | NY |
| 2022-09-22 | 240-961 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | POOLESVL | MD |
| 2022-09-22 | 431-829 | not yet reported which blocks → | Iristel Inc. | 154E | Anola | — |
| 2022-09-22 | 506-493 | not yet reported which blocks → | Distributel | 081E | Cap-Pele | — |
| 2022-09-22 | 506-494 | not yet reported which blocks → | Distributel | 081E | Cocagne | — |
| 2022-09-22 | 506-510 | not yet reported which blocks → | Distributel | 081E | Doaktown | — |
| 2022-09-22 | 506-528 | not yet reported which blocks → | Distributel | 081E | Dorchester | — |
| 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 | — |
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.