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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-03-07 | 231-663 | 1XXX3XXX6XXX7XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MESICK | MI |
| 2022-03-07 | 231-772 | 1XXX2XXX7XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WELLSTON | MI |
| 2022-03-07 | 252-867 | 1XXX5XXX7XXX9XXX · 3 holders which blocks → | COMMIO, LLC | 939H | ROCKYMOUNT | NC |
| 2022-03-07 | 269-776 | 6XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WAYLAND | MI |
| 2022-03-07 | 272-672 | 0XXX1XXX6XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | TAYLOR | PA |
| 2022-03-07 | 442-420 | 0–9 XXXall 10 · 2 holders which blocks → | COMMIO, LLC | 939H | PALM SPG | CA |
| 2022-03-07 | 470-936 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | 6540 | ATLANTA | GA |
| 2022-03-07 | 470-947 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - GA | 6116 | ATLANTA | GA |
| 2022-03-07 | 530-989 | 0XXX2XXX8XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NORTH YUBA | CA |
| 2022-03-07 | 608-840 | 0XXX2XXX8XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MONTICELLO | WI |
| 2022-03-07 | 616-424 | 2XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CONKLIN | MI |
| 2022-03-07 | 657-572 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2022-03-07 | 657-578 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2022-03-07 | 712-599 | 0XXX6XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CORECTINVL | IA |
| 2022-03-07 | 712-969 | 6XXX9XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BOYDEN | IA |
| 2022-03-07 | 726-437 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | SANANTONIO | TX |
| 2022-03-07 | 825-463 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Rocky Mountain House | — |
| 2022-03-07 | 825-464 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Stettler | — |
| 2022-03-07 | 825-558 | not yet reported which blocks → | Videotron Ltd. | 787G | Calgary | — |
| 2022-03-07 | 825-787 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Penhold | — |
| 2022-03-07 | 825-788 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Ponoka | — |
| 2022-03-07 | 825-789 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Rimbey | — |
| 2022-03-07 | 825-823 | not yet reported which blocks → | Videotron Ltd. | 787G | Edmonton | — |
| 2022-03-07 | 825-869 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Olds | — |
| 2022-03-07 | 825-970 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Sundre | — |
| 2022-03-07 | 825-971 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Sylvan Lake | — |
| 2022-03-07 | 825-972 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Three Hills | — |
| 2022-03-07 | 828-998 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | COMMIO, LLC | 939H | ASHEVILLE | NC |
| 2022-03-07 | 971-427 | 0–9 XXXwhole prefix which blocks → | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2022-03-04 | 213-671 | 0–9 XXXall 10 · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONTEBELLO | CA |
| 2022-03-04 | 218-662 | 0XXX2XXX7XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MOOSE LAKE | MN |
| 2022-03-04 | 234-349 | 0–9 XXXall 10 · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | AKRON | OH |
| 2022-03-04 | 256-966 | 0–9 XXXall 10 · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SCOTTSBORO | AL |
| 2022-03-04 | 318-817 | 0XXX1XXX9XXX · 3 holders which blocks → | LBH, LLC DBA CAMERON COMMUNICATIONS - LA | 645C | OAKDALE | LA |
| 2022-03-04 | 319-942 | 0XXX2XXX4XXX6XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | HILLSBORO | IA |
| 2022-03-04 | 319-996 | 1XXX6XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | HOUGHTON | IA |
| 2022-03-04 | 434-646 | 4XXX7XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WHITMELL | VA |
| 2022-03-04 | 445-244 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MORRISVL | PA |
| 2022-03-04 | 447-230 | 1XXX which blocks → | PAETEC ITEL, LLC | 829J | CHAMPAURBN | IL |
| 2022-03-04 | 470-939 | 0–9 XXXwhole prefix which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | ATLANTA NE | GA |
| 2022-03-04 | 478-732 | 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PERRY | GA |
| 2022-03-04 | 515-626 | 0XXX1XXX2XXX6XXX8XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BOONE | IA |
| 2022-03-04 | 515-862 | 0XXX2XXX3XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | STORY CITY | IA |
| 2022-03-04 | 551-727 | 0–9 XXXall 10 · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BAYONNE | NJ |
| 2022-03-04 | 551-799 | 0–9 XXXall 10 · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | UNION CITY | NJ |
| 2022-03-04 | 567-446 | 0XXX1XXX2XXX6XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NEY | OH |
| 2022-03-04 | 571-626 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | TRIANGLE | VA |
| 2022-03-04 | 575-757 | 0XXX5XXX7XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SOCORRO | NM |
| 2022-03-04 | 620-998 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 8 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NICKERSON | KS |
| 2022-03-04 | 641-727 | 2XXX3XXX7XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BLAKESBURG | IA |
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.