NumberResearchRecent prefix assignments
375 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026
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
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2017-12-02 | 236-788 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| 2017-12-02 | 236-833 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| 2017-12-01 | 334-373 | 0–9 XXXall 10 · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - AL | 5255 | VREDENBG | AL |
| 2017-12-01 | 334-594 | 0XXX2XXX3XXX4XXX7XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - AL | 5255 | CATHERINE | AL |
| 2017-12-01 | 479-281 | 1XXX2XXX · 2 holders which blocks → | COMCAST IP PHONE, LLC | 318J | LAVACA | AR |
| 2017-12-01 | 479-318 | 0–9 XXXall 10 · 5 holders which blocks → | COMCAST IP PHONE, LLC | 318J | SPRINGDALE | AR |
| 2017-12-01 | 716-528 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NY | 997E | LEWISTON | NY |
| 2017-12-01 | 779-247 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | WOODSTOCK | IL |
| 2017-12-01 | 878-214 | 0–9 XXXall 10 · 9 holders which blocks → | IDT AMERICA, CORP. - PA | 213C | GREENSBURG | PA |
| 2017-12-01 | 920-404 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | APPLETON | WI |
| 2017-12-01 | 929-505 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NY | 997E | NWYRCYZN05 | NY |
| 2017-11-30 | 236-305 | not yet reported which blocks → | Iristel Inc. | 154E | Richmond | — |
| 2017-11-30 | 267-951 | 0–9 XXXall 10 · 4 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | PHLDLPHZN1 | PA |
| 2017-11-30 | 579-302 | not yet reported which blocks → | Iristel Inc. | 154E | Pont-Viau | — |
| 2017-11-30 | 579-806 | not yet reported which blocks → | Iristel Inc. | 154E | Laprairie | — |
| 2017-11-30 | 579-988 | not yet reported which blocks → | Iristel Inc. | 154E | Ste-Therese | — |
| 2017-11-30 | 647-358 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Toronto | — |
| 2017-11-30 | 647-368 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Toronto | — |
| 2017-11-30 | 647-398 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Toronto | — |
| 2017-11-30 | 647-508 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Toronto | — |
| 2017-11-30 | 707-730 | 0–9 XXXall 10 · 9 holders which blocks → | UTILITY TELECOM GROUP, LLC - CA | 9262 | LAKEPORT | CA |
| 2017-11-30 | 731-274 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | SIDONIA | TN |
| 2017-11-30 | 731-275 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | PALMERSVL | TN |
| 2017-11-30 | 731-276 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | LATHAM | TN |
| 2017-11-30 | 807-698 | not yet reported which blocks → | Iristel Inc. | 154E | Thunder Bay | — |
| 2017-11-30 | 865-326 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | WASHBURN | TN |
| 2017-11-30 | 878-212 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2017-11-30 | 972-482 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | GRANDPRARI | TX |
| 2017-11-29 | 470-364 | 0–9 XXXall 10 · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - GA | 8392 | ATLANTA NE | GA |
| 2017-11-29 | 586-788 | 0–9 XXXall 10 · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | UTICA | MI |
| 2017-11-29 | 707-661 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALISTOGA | CA |
| 2017-11-29 | 716-309 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LANCASTER | NY |
| 2017-11-29 | 808-451 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HONOLULU | HI |
| 2017-11-29 | 813-460 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TAMPACEN | FL |
| 2017-11-28 | 202-880 | 0–9 XXXall 10 · 4 holders which blocks → | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN1 | DC |
| 2017-11-28 | 249-241 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Pefferlaw | — |
| 2017-11-28 | 249-506 | not yet reported which blocks → | Iristel Inc. | 154E | North Bay | — |
| 2017-11-28 | 343-216 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Sydenham | — |
| 2017-11-28 | 343-217 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Tamworth | — |
| 2017-11-28 | 343-218 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Elgin | — |
| 2017-11-28 | 343-219 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Lanark | — |
| 2017-11-28 | 343-220 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Portland | — |
| 2017-11-28 | 365-251 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Caledonia | — |
| 2017-11-28 | 365-252 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hagersville | — |
| 2017-11-28 | 365-253 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Keswick | — |
| 2017-11-28 | 365-254 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Schomberg | — |
| 2017-11-28 | 802-300 | 0–9 XXXall 10 · 5 holders which blocks → | LUDLOW TEL. CO. | 0058 | LUDLOW | VT |
| 2017-11-28 | 814-369 | 0XXX1XXX2XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | ALTOONA | PA |
| 2017-11-27 | 213-419 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 07 | CA |
| 2017-11-27 | 323-763 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 06 | CA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.