NumberResearchRecent prefix assignments
358 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026
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
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May 2026
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Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-03-22 | 438-549 | not yet reported which blocks → | FGLTEL Inc. | 139J | Ile-Perrot | — |
| 2022-03-22 | 438-551 | not yet reported which blocks → | FGLTEL Inc. | 139J | Lachine | — |
| 2022-03-22 | 438-552 | not yet reported which blocks → | FGLTEL Inc. | 139J | Pointe-Claire | — |
| 2022-03-22 | 438-553 | not yet reported which blocks → | FGLTEL Inc. | 139J | Roxboro | — |
| 2022-03-22 | 438-554 | not yet reported which blocks → | FGLTEL Inc. | 139J | Ste-Genevieve | — |
| 2022-03-22 | 464-263 | 0–9 XXXall 10 · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | OAK FOR SO | IL |
| 2022-03-22 | 470-949 | 0–9 XXXall 10 · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - GA | 8392 | BUFORD | GA |
| 2022-03-22 | 470-994 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | ATLANTA NE | GA |
| 2022-03-22 | 470-995 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | ATLANTA NW | GA |
| 2022-03-22 | 571-548 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | HERNDON | VA |
| 2022-03-22 | 579-821 | not yet reported which blocks → | TELUS Quebec | 2243 | Ste-Victoire | — |
| 2022-03-22 | 579-824 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Ours | — |
| 2022-03-22 | 620-889 | 0XXX5XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | HESSTON | KS |
| 2022-03-22 | 620-945 | 0XXX1XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | GIRARD | KS |
| 2022-03-22 | 667-405 | 0–9 XXXall 10 · 5 holders which blocks → | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | GLENBURNIE | MD |
| 2022-03-22 | 757-815 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - VA | 138E | ONANCOCK | VA |
| 2022-03-22 | 839-226 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NEWBERRY | SC |
| 2022-03-22 | 857-737 | 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WATERTOWN | MA |
| 2022-03-22 | 948-201 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - VA | 138E | TOANO | VA |
| 2022-03-21 | 225-481 | 0–9 XXXall 10 · 3 holders which blocks → | AIRUS, INC. - LA | 477H | BATONROUGE | LA |
| 2022-03-21 | 407-987 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - FL | 937C | ORLANDO | FL |
| 2022-03-21 | 424-481 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | HAWTHORNE | CA |
| 2022-03-21 | 530-929 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SHINGLESPG | CA |
| 2022-03-21 | 551-550 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2022-03-21 | 603-241 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DOVER | NH |
| 2022-03-21 | 742-239 | not yet reported which blocks → | FGLTEL Inc. | 139J | Brampton | — |
| 2022-03-21 | 742-240 | not yet reported which blocks → | FGLTEL Inc. | 139J | Caledon East | — |
| 2022-03-21 | 742-241 | not yet reported which blocks → | FGLTEL Inc. | 139J | Snelgrove | — |
| 2022-03-21 | 742-242 | not yet reported which blocks → | FGLTEL Inc. | 139J | Castlemore | — |
| 2022-03-21 | 742-243 | not yet reported which blocks → | FGLTEL Inc. | 139J | Malton | — |
| 2022-03-21 | 742-244 | not yet reported which blocks → | FGLTEL Inc. | 139J | Streetsville | — |
| 2022-03-21 | 742-245 | not yet reported which blocks → | FGLTEL Inc. | 139J | Cooksville | — |
| 2022-03-21 | 742-246 | not yet reported which blocks → | FGLTEL Inc. | 139J | Clarkson | — |
| 2022-03-21 | 742-248 | not yet reported which blocks → | FGLTEL Inc. | 139J | Victoria | — |
| 2022-03-21 | 742-277 | not yet reported which blocks → | FGLTEL Inc. | 139J | Port Credit | — |
| 2022-03-21 | 862-399 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | CALDWELL | NJ |
| 2022-03-18 | 229-737 | 0–9 XXXall 10 · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CUTHBERT | GA |
| 2022-03-18 | 308-465 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - NE | 3233 | OGALLALA | NE |
| 2022-03-18 | 351-231 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | GLOUCESTER | MA |
| 2022-03-18 | 478-723 | 0XXX1XXX3XXX5XXX7XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | GORDON | GA |
| 2022-03-18 | 502-401 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | FRANKFORT | KY |
| 2022-03-18 | 582-210 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BOALSBURG | PA |
| 2022-03-18 | 608-939 | 1XXX3XXX9XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MONROE CTR | WI |
| 2022-03-18 | 608-995 | 0XXX1XXX2XXX3XXX5XXX8XXX9XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | VERONA | WI |
| 2022-03-18 | 620-590 | 0XXX1XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WINFIELD | KS |
| 2022-03-18 | 626-929 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | ARCADIA | CA |
| 2022-03-18 | 626-996 | 0–9 XXXall 10 · 2 holders which blocks → | FRACTEL, LLC | 965H | LA PUENTE | CA |
| 2022-03-18 | 657-742 | 0–9 XXXall 10 · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | HUNTITNBCH | CA |
| 2022-03-18 | 669-455 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SUNNYVALE | CA |
| 2022-03-18 | 681-390 | 0XXX1XXX2XXX3XXX4XXX9XXX · 3 holders which blocks → | AT&T - LOCAL | 7421 | MILTON | WV |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.