NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 19
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
2015-10-20 782-846 not yet reported which blocks → Bell Mobility Aliant 329A Charlottetown —
2015-10-20 782-847 not yet reported which blocks → Bell Mobility Aliant 329A Halifax —
2015-10-20 848-252 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWBRNSWCK NJ
2015-10-20 916-545 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FAIR OAKS CA
2015-10-20 918-974 0XXX1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 POTEAU OK
2015-10-19 252-787 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E FARMVILLE NC
2015-10-19 431-846 not yet reported which blocks → Bell Mobility 6574 Winnipeg —
2015-10-19 442-259 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E SUMMIT VLY CA
2015-10-19 469-992 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2015-10-19 531-329 0–9 XXXall 10 · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OMAHA NE
2015-10-19 581-988 not yet reported which blocks → Videotron Ltd. 328F Quebec —
2015-10-19 587-963 not yet reported which blocks → Bell Mobility 6574 Calgary —
2015-10-19 647-251 not yet reported which blocks → TELUS Integrated Communications 2782 Toronto —
2015-10-19 647-798 not yet reported which blocks → TELUS Integrated Communications 2782 Toronto —
2015-10-19 657-445 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 FULLERTON CA
2015-10-19 667-701 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELKRIDGE MD
2015-10-19 778-849 not yet reported which blocks → Bell Mobility 6574 Vancouver —
2015-10-19 803-903 0–9 XXXall 10 · 6 holders which blocks → PALMETTO TELEPHONE COMMUNICATIONS, LLC - SC 154C HAMPTON SC
2015-10-19 804-336 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G HAGUE VA
2015-10-19 918-941 2XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - OK 5257 KELLYVILLE OK
2015-10-16 506-780 not yet reported which blocks → Comwave Networks 160G Miramichi —
2015-10-16 506-880 not yet reported which blocks → Comwave Networks 160G Edmundston —
2015-10-16 513-973 0–9 XXXall 10 · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K HAMILTON OH
2015-10-16 647-573 not yet reported which blocks → Videotron Ltd. 787G Toronto —
2015-10-16 778-324 not yet reported which blocks → Navigata Communications Limited 078G Port Mcneill —
2015-10-16 778-941 not yet reported which blocks → TELUS 8086 Port Coquitlam —
2015-10-16 779-513 0–9 XXXall 10 · 5 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J ROCKFORD IL
2015-10-15 213-279 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 LSAN DA 01 CA
2015-10-15 219-400 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F HOBART IN
2015-10-15 321-370 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WINTERPARK FL
2015-10-15 425-365 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 BELLEVUE WA
2015-10-15 531-727 0–9 XXXall 10 · 4 holders which blocks → GREAT PLAINS BROADBAND, INC. - NE 012E SEWARD NE
2015-10-15 561-660 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2015-10-15 563-235 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DUBUQUE IA
2015-10-15 575-339 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H LAS CRUCES NM
2015-10-15 720-651 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2015-10-15 779-717 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E SPRING VLY IL
2015-10-15 805-702 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E CAMARILLO CA
2015-10-15 929-455 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J NWYRCYZN06 NY
2015-10-14 253-263 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2015-10-14 360-999 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2015-10-14 430-300 0–9 XXXall 10 · 6 holders which blocks → EASTEX CELCO, LLC - TX 690H RUSK TX
2015-10-14 517-220 0–9 XXXall 10 · 5 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J LANSING MI
2015-10-14 585-629 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROCHESTER NY
2015-10-14 636-800 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - MO 093F ST CHARLES MO
2015-10-14 636-900 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - MO 093F WASHINGTON MO
2015-10-14 647-574 not yet reported which blocks → Videotron Ltd. 787G Toronto —
2015-10-14 850-666 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C TALLAHASSE FL
2015-10-14 913-286 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 OLATHE KS
2015-10-13 209-493 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F OAKDALE CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.