NumberResearchRecent prefix assignments
338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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 |
|---|---|---|---|---|---|---|
| 2022-12-07 | 572-272 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - OK | 409F | STILLWATER | OK |
| 2022-12-07 | 606-426 | 0XXX1XXX4XXX5XXX8XXX · 3 holders which blocks → | ONVOY, LLC - KY | 896E | FAUBUSH | KY |
| 2022-12-07 | 606-586 | 0XXX1XXX5XXX8XXX · 3 holders which blocks → | ONVOY, LLC - KY | 896E | WAYLAND | KY |
| 2022-12-07 | 620-690 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - KS | 205F | HUTCHINSON | KS |
| 2022-12-07 | 656-209 | 0–9 XXXall 10 · 3 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | TAMPANTH | FL |
| 2022-12-07 | 743-254 | 0XXX7XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ANDERSON | NC |
| 2022-12-07 | 743-373 | 0XXX1XXX3XXX7XXX · 3 holders which blocks → | ONVOY, LLC - NC | 638E | RAMSEUR | NC |
| 2022-12-07 | 743-473 | 0XXX1XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC - NC | 638E | TIMBERLAKE | NC |
| 2022-12-07 | 859-589 | 0XXX1XXX2XXX4XXX5XXX8XXX · 2 holders which blocks → | ONVOY, LLC - KY | 896E | WILMORE | KY |
| 2022-12-07 | 980-790 | 0XXX1XXX7XXX · 2 holders which blocks → | ONVOY, LLC - NC | 638E | NORWOOD | NC |
| 2022-12-07 | 986-244 | 9XXX which blocks → | BOOST SUBSCRIBERCO L.L.C. | 490J | COERDALENE | ID |
| 2022-12-06 | 220-242 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | LANCASTER | OH |
| 2022-12-06 | 343-598 | not yet reported which blocks → | Bell Mobility | 6574 | Ottawa-Hull | — |
| 2022-12-06 | 380-383 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - OH | 464C | COLUMBUS | OH |
| 2022-12-06 | 385-496 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AMERCNFORK | UT |
| 2022-12-06 | 385-504 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KAYSVILLE | UT |
| 2022-12-06 | 385-506 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MIDVALE | UT |
| 2022-12-06 | 385-507 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALT LAKE | UT |
| 2022-12-06 | 437-431 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2022-12-06 | 438-468 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2022-12-06 | 480-932 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2022-12-06 | 507-902 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MANKATO | MN |
| 2022-12-06 | 584-301 | not yet reported which blocks → | Bell Mobility | 6574 | Stonewall | — |
| 2022-12-06 | 615-621 | 0–9 XXXall 10 · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | NASHVILLE | TN |
| 2022-12-06 | 615-910 | 0–9 XXXall 10 · 2 holders which blocks → | HADLO TECHNOLOGIES, LLC | 436J | NASHVILLE | TN |
| 2022-12-06 | 626-670 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ALHAMBRA | CA |
| 2022-12-06 | 659-261 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - AL | 072F | TUSCALOOSA | AL |
| 2022-12-06 | 709-331 | not yet reported which blocks → | Bragg Communications Inc. | 421G | Corner Brook | — |
| 2022-12-06 | 765-805 | 0–9 XXXall 10 · 2 holders which blocks → | HANCOCK COMMUNICATIONS, INC. - IN | 7459 | MUNCIE | IN |
| 2022-12-06 | 805-949 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CAMARILLO | CA |
| 2022-12-06 | 805-993 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEWBURYPRK | CA |
| 2022-12-06 | 840-224 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | S BERNDINO | CA |
| 2022-12-06 | 858-343 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LA JOLLA | CA |
| 2022-12-06 | 873-308 | not yet reported which blocks → | Bell Mobility | 6574 | Trois-Rivieres | — |
| 2022-12-06 | 920-760 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | APPLETON | WI |
| 2022-12-06 | 943-473 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - GA | 067D | GAINESVL | GA |
| 2022-12-06 | 949-730 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LAGUNA BCH | CA |
| 2022-12-06 | 959-240 | 0–9 XXXall 10 · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | 7143 | HARTFORD | CT |
| 2022-12-05 | 231-415 | 1XXX which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | DUBLIN | MI |
| 2022-12-05 | 330-586 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MANTUA | OH |
| 2022-12-05 | 343-512 | not yet reported which blocks → | Iristel Inc. | 154E | Hawkesbury | — |
| 2022-12-05 | 365-761 | not yet reported which blocks → | Iristel Inc. | 154E | Dunnville | — |
| 2022-12-05 | 365-797 | not yet reported which blocks → | Iristel Inc. | 154E | Grimsby | — |
| 2022-12-05 | 474-470 | not yet reported which blocks → | Fibernetics Corporation | 464D | Davidson | — |
| 2022-12-05 | 474-471 | not yet reported which blocks → | Fibernetics Corporation | 464D | Grenfell | — |
| 2022-12-05 | 474-472 | not yet reported which blocks → | Fibernetics Corporation | 464D | Kipling | — |
| 2022-12-05 | 474-473 | not yet reported which blocks → | Fibernetics Corporation | 464D | Milestone | — |
| 2022-12-05 | 474-475 | not yet reported which blocks → | Fibernetics Corporation | 464D | Southey | — |
| 2022-12-05 | 474-476 | not yet reported which blocks → | Fibernetics Corporation | 464D | Whitewood | — |
| 2022-12-05 | 474-479 | not yet reported which blocks → | Fibernetics Corporation | 464D | Wolseley | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.