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
2002-10-09 905-931 not yet reported which blocks → Bell Mobility 6574 St. Catharines-Thorold —
2002-10-09 914-471 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOUNTKISCO NY
2002-10-09 914-534 0XXX2XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks → METROPCS, INC. 5562 NORTHSALEM NY
2002-10-09 914-573 0XXX4XXX5XXX7XXX · 2 holders which blocks → METROPCS, INC. 5562 WSCHSTZN02 NY
2002-10-09 914-574 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → METROPCS, INC. 5562 WSCHSTZN05 NY
2002-10-09 914-575 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → METROPCS, INC. 5562 WSCHSTZN06 NY
2002-10-09 956-243 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → AT&T - LOCAL 7421 BROWNSVL TX
2002-10-08 208-625 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 COERDALENE ID
2002-10-08 434-442 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 VOLENS VA
2002-10-08 434-532 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 LAWRENCEVL VA
2002-10-08 434-533 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 CHASE CITY VA
2002-10-08 478-222 not yet reported which blocks → PAETEC ITEL, LLC 829J WARNERRBNS GA
2002-10-08 502-310 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → METROPCS, INC. 5562 LA GRANGE KY
2002-10-08 856-466 none assigned yet which blocks → METROPCS, INC. 5562 VINELAND NJ
2002-10-08 904-422 not yet reported which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2002-10-08 918-917 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OK 5257 WILBURTON OK
2002-10-07 205-337 none assigned yet which blocks → METROPCS, INC. 5562 BIRMINGHAM AL
2002-10-07 214-223 none assigned yet which blocks → METROPCS, INC. 5562 IRVING TX
2002-10-07 254-978 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MERIDIAN TX
2002-10-07 318-360 not yet reported which blocks → CENTURYLINK COMMUNICATIONS LLC - LA 2896 MONROE LA
2002-10-07 330-636 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC. - OH 0615 MEDINA OH
2002-10-07 337-323 8XXX9XXX which blocks → PAETEC ITEL, LLC 829J OPELOUSAS LA
2002-10-07 337-327 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J CROWLEY LA
2002-10-07 407-733 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 WINTERPARK FL
2002-10-07 423-455 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TN 4806 JELLICO TN
2002-10-07 563-321 2XXX3XXX4XXX5XXX6XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 CLINTON IA
2002-10-07 606-330 not yet reported which blocks → WINDSTREAM KENTUCKY EAST, INC. - LONDON 9691 LONDON KY
2002-10-07 646-316 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2002-10-07 718-810 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN12 NY
2002-10-07 775-292 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → T-MOBILE USA, INC. 6529 GARDNERVL NV
2002-10-07 775-296 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ELY NV
2002-10-07 817-757 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → AT&T - LOCAL 7421 WEATHERFD TX
2002-10-07 843-299 1XXX2XXX3XXX4XXX9XXX · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K MURELSINLT SC
2002-10-07 859-228 7XXX8XXX9XXX · 3 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 BEREA KY
2002-10-07 859-256 not yet reported which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 VERSAILLES KY
2002-10-04 203-228 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 WATERBURY CT
2002-10-04 250-551 not yet reported which blocks → TELUS Mobility 8301 Nelson —
2002-10-04 252-847 not yet reported which blocks → ONVOY, LLC - NC 638E GREENVILLE NC
2002-10-04 416-859 not yet reported which blocks → Bell Mobility 6574 Toronto —
2002-10-04 760-702 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INDIO CA
2002-10-04 814-531 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 CENTREHALL PA
2002-10-03 205-294 3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 CLANTON AL
2002-10-03 218-302 1XXX4XXX5XXX which blocks → ONVOY, LLC - MN 184D DULUTH MN
2002-10-03 218-304 1XXX2XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - MN 184D MOORHEAD MN
2002-10-03 229-277 not yet reported which blocks → WINDSTREAM GEORGIA COMMUNICATIONS CORP. 4332 BUENAVISTA GA
2002-10-03 256-668 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RUSSELLVL AL
2002-10-03 403-827 not yet reported which blocks → Bell Mobility 6574 Calgary —
2002-10-03 416-238 not yet reported which blocks → Primus Telecommunications Canada Inc. 201A Toronto —
2002-10-03 519-282 not yet reported which blocks → Bell Mobility 6574 London —
2002-10-03 540-346 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 FERRUM VA

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.