NumberResearch Membership · Data 09/22/2026

Recent prefix assignments

354 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026

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. 39
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 20
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
2002-01-28 662-540 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MTPLEASANT MS
2002-01-28 702-326 not yet reported which blocks → T-MOBILE USA, INC. 6529 LAS VEGAS NV
2002-01-28 707-295 1XXX2XXX3XXX4XXX5XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LOWER LAKE CA
2002-01-28 707-342 6XXX which blocks → T-MOBILE USA, INC. 6529 VALLEJO CA
2002-01-28 707-344 7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2002-01-28 714-709 0XXX2XXX4XXX5XXX8XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SILVERADO CA
2002-01-28 714-720 none assigned yet which blocks → METROPCS NETWORKS, LLC 899D SANTA ANA CA
2002-01-28 760-265 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 VICTORVL CA
2002-01-28 760-490 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VICTORVL CA
2002-01-28 760-580 not yet reported which blocks → T-MOBILE USA, INC. 6529 ESCONDIDO CA
2002-01-28 803-572 0–9 XXXall 10 · 8 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CAMDEN SC
2002-01-28 805-268 1XXX6XXX7XXX8XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 SANTAMARIA CA
2002-01-28 805-294 1XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 LOMPOC CA
2002-01-28 805-302 not yet reported which blocks → T-MOBILE USA, INC. 6529 OXNARD CA
2002-01-28 805-304 6XXX which blocks → T-MOBILE USA, INC. 6529 SIMIVALLEY CA
2002-01-28 805-305 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SNLUSOBSPO CA
2002-01-28 818-581 2XXX3XXX4XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 SNFN SNFN CA
2002-01-28 863-263 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 ARCADIA FL
2002-01-28 903-250 none assigned yet which blocks → PERSONAL TOUCH COMMUNICATIONS, LP - TX 5159 GREENVILLE TX
2002-01-28 915-227 6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2002-01-28 916-412 1XXX which blocks → T-MOBILE USA, INC. 6529 RSVL MAIN CA
2002-01-28 916-432 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 RIO LINDA CA
2002-01-28 916-477 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 WALNUT GRV CA
2002-01-28 925-337 7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LIVERMORE CA
2002-01-28 925-348 8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 CONCORD CA
2002-01-28 925-353 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PLEASANTON CA
2002-01-28 925-354 4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANTIOCH CA
2002-01-28 949-351 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 IRVINE CA
2002-01-28 949-354 0–9 XXXall 10 · 5 holders which blocks → MATRIX TELECOM, LLC. S/I/I TNCI - CA 7379 SADLBK VLY CA
2002-01-28 951-310 5XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 CORONA CA
2002-01-25 517-659 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J ADDISON MI
2002-01-25 519-386 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Port Elgin —
2002-01-25 580-656 9XXX which blocks → UNITED STATES CELLULAR - OK 6272 DUNCAN OK
2002-01-25 867-875 not yet reported which blocks → Northwestel 8092 Hay River —
2002-01-25 906-874 not yet reported which blocks → BARAGA TELEPHONE COMPANY 4253 CRYSTALFLS MI
2002-01-24 225-323 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → AT&T - LOCAL 7421 DONALDSNVL LA
2002-01-24 281-330 none assigned yet which blocks → METROPCS, INC. 5562 HSTNSUBURB TX
2002-01-24 315-519 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J CARTHAGE NY
2002-01-24 479-599 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 SILOAM SPG AR
2002-01-24 561-577 not yet reported which blocks → METROPCS, INC. 5562 BOYNTONBCH FL
2002-01-24 561-929 not yet reported which blocks → METROPCS, INC. 5562 BOCA RATON FL
2002-01-24 701-526 4XXX6XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J FARGO ND
2002-01-24 754-366 not yet reported which blocks → METROPCS, INC. 5562 POMPANOBCH FL
2002-01-24 754-367 not yet reported which blocks → METROPCS, INC. 5562 DEERFLDBCH FL
2002-01-24 754-368 not yet reported which blocks → METROPCS, INC. 5562 CORAL SPG FL
2002-01-24 828-358 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 HICKORY NC
2002-01-24 845-458 0–9 XXXall 10 · 7 holders which blocks → PAETEC ITEL, LLC 829J CORNWALL NY
2002-01-24 904-566 8XXX which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2002-01-24 912-322 0XXX3XXX4XXX5XXX7XXX · 3 holders which blocks → METROPCS, INC. 5562 ST MARYS GA
2002-01-24 918-848 1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRLAND OK

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.