NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 912-506 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 BRUNSWICK GA
— 912-507 not yet reported which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 SAVANNAH GA
— 912-508 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - GA 8392 SAVANNAH GA
— 912-510 1XXX which blocks → CAMDEN TEL. & TEL. CO., INC. 0351 ST MARYS GA
— 912-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX GA
— 912-512 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STATESBORO GA
— 912-523 0XXX which blocks → GLENWOOD TEL. CO. 0365 GLENWOOD GA
— 912-525 9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 SAVANNAH GA
— 912-526 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 LYONS GA
— 912-527 0XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 SAVANNAH GA
— 912-529 not yet reported which blocks → PLANT TEL. CO. 0379 SOPERTON GA
— 912-530 5XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JESUP GA
— 912-531 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 STATESBORO GA
— 912-534 not yet reported which blocks → PLANT TEL. CO. 0379 WILLACOCHE GA
— 912-536 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 STATESBORO GA
— 912-537 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 VIDALIA GA
— 912-538 4XXX6XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 VIDALIA GA
— 912-539 2XXX3XXX6XXX7XXX8XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HAZLEHURST GA
— 912-540 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ST MARYS GA
— 912-541 6XXX7XXX8XXX which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 STATESBORO GA
— 912-544 not yet reported which blocks → PAETEC ITEL, LLC 829J SAVANNAH GA
— 912-545 not yet reported which blocks → GEORGIA WINDSTREAM, INC. 4425 LUDOWICI GA
— 912-547 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 SAVANNAH GA
— 912-548 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 WAYCROSS GA
— 912-550 0XXX2XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → METROPCS, INC. 5562 WAYCROSS GA
— 912-554 6XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 BRUNSWICK GA
— 912-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST GA
— 912-557 9XXX which blocks → GEORGIA WINDSTREAM, INC. 4425 REIDSVILLE GA
— 912-562 not yet reported which blocks → PINELAND TEL. COOP., INC. 0377 LEXSY GA
— 912-564 not yet reported which blocks → GEORGIA WINDSTREAM, INC. 4425 SYLVANIA GA
— 912-565 1XXX5XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JOHNSONCOR GA
— 912-568 not yet reported which blocks → GEORGIA WINDSTREAM, INC. 4425 ALAMO GA
— 912-570 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HINESVILLE GA
— 912-571 3XXX4XXX5XXX7XXX8XXX which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 BRUNSWICK GA
— 912-572 0XXX which blocks → SUNCOM DBA T-MOBILE USA 8645 RICHMONDHL GA
— 912-576 not yet reported which blocks → CAMDEN TEL. & TEL. CO., INC. 0351 ST MARYS GA
— 912-578 not yet reported which blocks → PINELAND TEL. COOP., INC. 0377 OAK PARK GA
— 912-579 not yet reported which blocks → GEORGIA WINDSTREAM, INC. 4425 SCREVEN GA
— 912-580 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J BRUNSWICK GA
— 912-583 not yet reported which blocks → WINDSTREAM GEORGIA COMMUNICATIONS CORP. 4332 MT VERNON GA
— 912-585 0XXX1XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VIDALIA GA
— 912-586 not yet reported which blocks → GEORGIA WINDSTREAM, INC. 4425 ODUM GA
— 912-587 not yet reported which blocks → BULLOCH COUNTY RURAL TEL. COOP., INC. 0348 CLITO GA
— 912-588 3XXX4XXX5XXX6XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JESUP GA
— 912-590 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J WAYCROSS GA
— 912-592 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 DOUGLAS GA
— 912-594 not yet reported which blocks → GEORGIA WINDSTREAM, INC. 4425 UVALDA GA
— 912-596 none assigned yet which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 SAVANNAH GA
— 912-598 6XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 SAVANNAH GA
— 912-605 0XXX1XXX6XXX8XXX · 4 holders which blocks → ONVOY, LLC - GA 067D UVALDA GA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.