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
New assignments by month
Sep 2026
Aug 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-03-25 | 480-863 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHOENIX | AZ |
| 2022-03-25 | 581-697 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Jean-de-Dieu | — |
| 2022-03-25 | 581-698 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Honore (Temiscouata Co.) | — |
| 2022-03-25 | 606-384 | 0XXX1XXX7XXX8XXX9XXX · 4 holders which blocks → | POWERTEL KENTUCKY LICENSES, INC. | 365C | PAINTSVL | KY |
| 2022-03-25 | 629-273 | 0–9 XXXall 10 · 2 holders which blocks → | POWERTEL NASHVILLE LICENSES, INC. | 7476 | FRANKLIN | TN |
| 2022-03-25 | 641-776 | 0–9 XXXall 10 · 8 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CHARITON | IA |
| 2022-03-25 | 672-477 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | South Kamloops | — |
| 2022-03-25 | 672-712 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Ashcroft | — |
| 2022-03-25 | 672-713 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Aspen Park | — |
| 2022-03-25 | 672-767 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Avola | — |
| 2022-03-25 | 672-768 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Barriere | — |
| 2022-03-25 | 672-769 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Blue River | — |
| 2022-03-25 | 709-961 | not yet reported which blocks → | Bell Mobility Aliant | 329A | St. John's | — |
| 2022-03-25 | 720-910 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DENVER | CO |
| 2022-03-25 | 720-997 | 1XXX7XXX8XXX · 3 holders which blocks → | COMCAST IP PHONE, LLC | 318J | BENNETT | CO |
| 2022-03-25 | 863-378 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BARTOW | FL |
| 2022-03-24 | 236-779 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2022-03-24 | 240-951 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | HAGERSTOWN | MD |
| 2022-03-24 | 240-952 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | HAGERSTOWN | MD |
| 2022-03-24 | 240-953 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | HAGERSTOWN | MD |
| 2022-03-24 | 240-954 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | HAGERSTOWN | MD |
| 2022-03-24 | 254-726 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | GORDON | TX |
| 2022-03-24 | 307-419 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | CODY | WY |
| 2022-03-24 | 319-767 | 0XXX2XXX4XXX6XXX8XXX9XXX · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | KEOKUK | IA |
| 2022-03-24 | 346-626 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SUGAR LAND | TX |
| 2022-03-24 | 365-432 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2022-03-24 | 365-638 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2022-03-24 | 431-947 | not yet reported which blocks → | Bell Mobility | 6574 | Winnipeg | — |
| 2022-03-24 | 464-567 | 0XXX5XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | HARVEY | IL |
| 2022-03-24 | 506-354 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Miramichi | — |
| 2022-03-24 | 507-815 | 0XXX5XXX6XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - MN | 8405 | NEW RICHLD | MN |
| 2022-03-24 | 539-284 | 0XXX2XXX5XXX8XXX9XXX · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - OK | 119F | CHECOTAH | OK |
| 2022-03-24 | 727-589 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | CLEARWATER | FL |
| 2022-03-24 | 734-982 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | TRENTON | MI |
| 2022-03-24 | 734-987 | 0–9 XXXall 10 · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PLYMOUTH | MI |
| 2022-03-24 | 771-209 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN1 | DC |
| 2022-03-24 | 771-210 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - DC | 6117 | WSHNGTNZN1 | DC |
| 2022-03-24 | 825-542 | not yet reported which blocks → | Bell Mobility | 6574 | Edmonton | — |
| 2022-03-24 | 825-543 | not yet reported which blocks → | Bell Mobility | 6574 | Edmonton | — |
| 2022-03-24 | 862-401 | 0–9 XXXall 10 · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NEWARK | NJ |
| 2022-03-24 | 970-809 | 0XXX1XXX7XXX8XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | RDFTHERLKS | CO |
| 2022-03-24 | 980-376 | 0–9 XXXall 10 · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - NC | 3235 | CHARLOTTE | NC |
| 2022-03-23 | 332-733 | 0–9 XXXall 10 · 3 holders which blocks → | TC SYSTEMS, INC. - NY | 7140 | NWYRCYZN01 | NY |
| 2022-03-23 | 365-431 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2022-03-23 | 423-925 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | LAFOLLETTE | TN |
| 2022-03-23 | 424-655 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | INGLEWOOD | CA |
| 2022-03-23 | 424-944 | 0–9 XXXall 10 · 2 holders which blocks → | FRACTEL, LLC | 965H | BEVERLYHLS | CA |
| 2022-03-23 | 438-570 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2022-03-23 | 445-447 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - PA | 547E | PHLDLPHZN1 | PA |
| 2022-03-23 | 474-350 | not yet reported which blocks → | Bell Mobility | 6574 | Saskatoon | — |
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.