NumberResearch Membership · Data 09/24/2026

Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 31
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - IL 27
ONVOY, LLC - NJ 15
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
2012-10-10 832-727 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2012-10-10 832-732 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CYPRESS TX
2012-10-09 206-557 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2012-10-09 310-627 0–9 XXXall 10 · 7 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CMTN CMTN CA
2012-10-09 336-929 0–9 XXXall 10 · 2 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2012-10-09 336-938 0–9 XXXall 10 · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2012-10-09 404-820 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
2012-10-09 412-713 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2012-10-09 415-654 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 SNFC CNTRL CA
2012-10-09 480-448 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2012-10-09 706-927 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E EATONTON GA
2012-10-09 707-868 0–9 XXXall 10 · 3 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F TOMALES CA
2012-10-09 760-441 1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BRSW YERM CA
2012-10-09 770-212 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA NE GA
2012-10-09 828-620 0–9 XXXall 10 · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 ASHEVILLE NC
2012-10-09 971-305 7XXX which blocks → COMCAST IP PHONE, LLC 318J MONITOR OR
2012-10-08 260-214 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LAGRANGE IN
2012-10-08 404-500 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2012-10-08 513-401 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2012-10-08 574-334 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2012-10-08 615-801 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 MURFREESBO TN
2012-10-08 646-650 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NWYRCYZN01 NY
2012-10-08 732-592 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F MANASQUAN NJ
2012-10-08 732-884 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F KEANSBURG NJ
2012-10-05 201-885 0–9 XXXall 10 · 6 holders which blocks → BARR TELL USA, INC. - NJ 917G JERSEYCITY NJ
2012-10-05 210-610 0–9 XXXall 10 · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANANTONIO TX
2012-10-05 587-370 not yet reported which blocks → Bell Mobility 6574 Lethbridge —
2012-10-05 647-528 not yet reported which blocks → Bell Mobility 6574 Toronto —
2012-10-05 709-332 not yet reported which blocks → Bell Mobility Aliant 329A Marystown —
2012-10-05 774-309 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WESTPORT MA
2012-10-05 862-254 0–9 XXXall 10 · 4 holders which blocks → CSC VOICE, LLC 612K NETCONG NJ
2012-10-05 971-304 0–9 XXXall 10 · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SALEM OR
2012-10-05 985-393 0XXX1XXX3XXX · 3 holders which blocks → PRIDE NETWORK, INC. DBA NTS OF LOUISIANA - LA 959G HAMMOND LA
2012-10-04 206-549 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 SEATTLE WA
2012-10-04 310-504 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F REDONDO CA
2012-10-04 415-539 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC CNTRL CA
2012-10-04 819-904 not yet reported which blocks → Videotron Ltd. 787G Ottawa-Hull —
2012-10-04 858-249 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LA JOLLA CA
2012-10-04 917-631 0–9 XXXall 10 · 3 holders which blocks → CSC VOICE, LLC 612K NWYRCYZN03 NY
2012-10-04 925-332 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CONCORD CA
2012-10-04 970-615 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 MONTROSE CO
2012-10-03 253-625 0–9 XXXall 10 · 4 holders which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 TACOMA WA
2012-10-03 431-210 not yet reported which blocks → Bell West Inc. 2933 Brandon —
2012-10-03 971-276 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2012-10-02 203-580 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF CONNECTICUT, LLC - CT 539F BYRAM CT
2012-10-02 203-780 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF CONNECTICUT, LLC - CT 539F NEW HAVEN CT
2012-10-02 281-512 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 HSTNSUBURB TX
2012-10-02 310-307 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 W ANGELES CA
2012-10-02 475-239 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF CONNECTICUT, LLC - CT 539F TRUMBULL CT
2012-10-02 707-755 0–9 XXXall 10 · 5 holders which blocks → SONIC TELECOM, LLC - CA 433E SANTA ROSA CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.