NumberResearchRecent prefix assignments
354 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026
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 |
|---|---|---|---|---|---|---|
| 2003-09-24 | 662-687 | 2XXX3XXX4XXX5XXX which blocks → | CELLULAR SOUTH, INC. | 6581 | TUPELO | MS |
| 2003-09-24 | 705-507 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Sudbury | — |
| 2003-09-24 | 812-679 | 0–9 XXXall 10 · 2 holders which blocks → | METROPCS, INC. | 5562 | BLOOMINGTN | IN |
| 2003-09-24 | 850-359 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | JAY | FL |
| 2003-09-24 | 910-363 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → | AT&T - LOCAL | 7421 | SOUTHPORT | NC |
| 2003-09-23 | 403-421 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Warner | — |
| 2003-09-23 | 403-505 | not yet reported which blocks → | TELUS Mobility | 8301 | Red Deer | — |
| 2003-09-23 | 416-795 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2003-09-23 | 514-796 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2003-09-23 | 570-240 | 0–9 XXXall 10 · 6 holders which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | TUNKHANNCK | PA |
| 2003-09-23 | 647-668 | not yet reported which blocks → | TELUS Mobility | 8303 | Toronto | — |
| 2003-09-23 | 850-345 | not yet reported which blocks → | POWERTEL JACKSONVILLE LICENSES, INC. | 7472 | TALLAHASSE | FL |
| 2003-09-23 | 850-698 | none assigned yet which blocks → | METROPCS, INC. | 5562 | PENSACOLA | FL |
| 2003-09-23 | 850-699 | none assigned yet which blocks → | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | 6916 | FTWALTNBCH | FL |
| 2003-09-23 | 864-557 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SENECA | SC |
| 2003-09-23 | 864-670 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | WOODRUFF | SC |
| 2003-09-23 | 905-407 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Burlington | — |
| 2003-09-22 | 320-315 | 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | GRANITEFLS | MN |
| 2003-09-22 | 336-477 | 0–9 XXXall 10 · 6 holders which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | MOCKSVILLE | NC |
| 2003-09-22 | 506-961 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Moncton | — |
| 2003-09-22 | 514-797 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2003-09-22 | 647-654 | not yet reported which blocks → | TELUS Mobility | 8303 | Toronto | — |
| 2003-09-22 | 647-882 | not yet reported which blocks → | TELUS Mobility | 8303 | Toronto | — |
| 2003-09-22 | 780-233 | not yet reported which blocks → | Bell Mobility | 6574 | Edmonton | — |
| 2003-09-22 | 787-454 | 0–9 XXXall 10 · 2 holders which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | ARECIBO | PR |
| 2003-09-22 | 812-773 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | NUSO, LLC | 551G | EVANSVILLE | IN |
| 2003-09-22 | 828-460 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | MARION | NC |
| 2003-09-22 | 864-872 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | LAURENS | SC |
| 2003-09-22 | 870-677 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | EL DORADO | AR |
| 2003-09-19 | 309-321 | 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | MORTON | IL |
| 2003-09-19 | 479-225 | 9XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | FAYETTEVL | AR |
| 2003-09-19 | 716-442 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC- NY | 384C | AKRON | NY |
| 2003-09-19 | 870-557 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | NASHVILLE | AR |
| 2003-09-18 | 416-602 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2003-09-18 | 416-624 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2003-09-18 | 416-625 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2003-09-18 | 416-627 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2003-09-18 | 416-662 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2003-09-18 | 418-212 | not yet reported which blocks → | Videotron Ltd. | 8306 | Alma | — |
| 2003-09-18 | 418-307 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Felicien | — |
| 2003-09-18 | 540-415 | 0–9 XXXwhole prefix which blocks → | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WAYNESBORO | VA |
| 2003-09-18 | 757-388 | 0–9 XXXwhole prefix which blocks → | COMCAST IP PHONE, LLC | 318J | NRFOLKZON2 | VA |
| 2003-09-18 | 864-547 | 1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CLINTON | SC |
| 2003-09-18 | 864-548 | 1XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CALHOUNFLS | SC |
| 2003-09-18 | 864-550 | 1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MCCORMICK | SC |
| 2003-09-18 | 864-570 | 1XXX7XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | IVA | SC |
| 2003-09-17 | 337-356 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LAFAYETTE | LA |
| 2003-09-17 | 337-375 | 0XXX9XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA | 6505 | DE RIDDER | LA |
| 2003-09-17 | 337-376 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - LA | 3232 | NEW IBERIA | LA |
| 2003-09-17 | 337-377 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | LK CHARLES | LA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.