NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

338 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
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 26
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
— 910-478 5XXX6XXX7XXX8XXX which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 JACKSONVL NC
— 910-479 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → UNITED STATES CELLULAR - NC 6282 RAEFORD NC
— 910-480 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-481 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-482 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-483 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-484 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-485 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-486 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-487 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-488 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-489 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 FAYETTEVL NC
— 910-493 3XXX which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-494 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FAYETTEVL NC
— 910-495 3XXX4XXX5XXX6XXX which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-496 5XXX6XXX which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-497 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-506 0–9 XXXall 10 · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 LAURINBURG NC
— 910-509 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 WRGHTSVBCH NC
— 910-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 910-512 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WILMINGTON NC
— 910-514 0XXX1XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LILLINGTON NC
— 910-515 2XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WILMINGTON NC
— 910-520 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WILMINGTON NC
— 910-521 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 PEMBROKE NC
— 910-522 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 PEMBROKE NC
— 910-523 5XXX7XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WILMINGTON NC
— 910-524 3XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WILMINGTON NC
— 910-525 8XXX which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 ROSEBORO NC
— 910-526 0XXX which blocks → SUNCOM DBA T-MOBILE USA 8645 JACKSONVL NC
— 910-527 not yet reported which blocks → SUNCOM DBA T-MOBILE USA 8645 FAYETTEVL NC
— 910-528 3XXX8XXX · 2 holders which blocks → METROPCS, INC. 5562 SOUTHEPINS NC
— 910-529 6XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 GARLAND NC
— 910-531 not yet reported which blocks → STAR TEL. MEMBERSHIP CORP. 0502 SOUTHRIVER NC
— 910-532 not yet reported which blocks → STAR TEL. MEMBERSHIP CORP. 0502 HARRELLS NC
— 910-533 1XXX5XXX · 2 holders which blocks → STAR TEL. MEMBERSHIP CORP. 0502 SIX RUN NC
— 910-534 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LAURINBURG NC
— 910-540 none assigned yet which blocks → UNITED STATES CELLULAR - NC 6282 WILMINGTON NC
— 910-545 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSONVL NC
— 910-551 0XXX which blocks → SUNCOM DBA T-MOBILE USA 8645 FAYETTEVL NC
— 910-552 1XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 WALLACE NC
— 910-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST NC
— 910-564 8XXX which blocks → STAR TEL. MEMBERSHIP CORP. 0502 HERRING NC
— 910-567 not yet reported which blocks → STAR TEL. MEMBERSHIP CORP. 0502 COHARIE NC
— 910-571 8XXX which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 TROY NC
— 910-572 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 TROY NC
— 910-574 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FAYETTEVL NC
— 910-575 not yet reported which blocks → ATLANTIC TEL. MEMBERSHIP CORP. 0468 SEASIDE NC
— 910-576 not yet reported which blocks → BRIGHTSPEED OF NORTH CAROLINA, LLC 0471 TROY NC
— 910-577 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 JACKSONVL NC

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.