NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
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
2013-10-08 909-906 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E ONTARIO CA
2013-10-08 949-438 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NEWPORTBCH CA
2013-10-08 951-384 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 RIVERSIDE CA
2013-10-07 248-294 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-10-07 248-309 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2013-10-07 252-253 0–9 XXXall 10 · 6 holders which blocks → UNITED STATES CELLULAR - NC 6282 GRIFTON NC
2013-10-07 289-707 not yet reported which blocks → Videotron Ltd. 787G Burlington —
2013-10-07 343-203 not yet reported which blocks → Bell Canada 8051 Ottawa-Hull —
2013-10-07 423-617 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → POWERTEL NASHVILLE LICENSES, INC. 7476 ATHENS TN
2013-10-07 440-469 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 BEREA OH
2013-10-07 609-401 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 ALLENTOWN NJ
2013-10-07 651-703 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 RED WING MN
2013-10-07 708-916 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 HARVEY IL
2013-10-07 779-703 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 JOLIET IL
2013-10-07 808-464 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - HI 9414 HILO HI
2013-10-07 816-209 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 CAMERON MO
2013-10-07 872-701 0XXX1XXX2XXX3XXX6XXX9XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 CHICGOZN08 IL
2013-10-07 872-703 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2013-10-07 913-703 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 KANSASCITY KS
2013-10-07 916-661 0–9 XXXall 10 · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7128 SCRM MAIN CA
2013-10-06 802-712 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FIDIUM ENTERPRISE SERVICES, LLC 383J RUTLAND VT
2013-10-04 205-920 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 BESSEMER AL
2013-10-04 240-801 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 GAITHERSBG MD
2013-10-04 440-219 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2013-10-04 513-903 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2013-10-04 517-435 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 JACKSON MI
2013-10-04 585-357 0–9 XXXall 10 · 8 holders which blocks → PAETEC ITEL, LLC 829J ALBION NY
2013-10-04 786-703 0–9 XXXall 10 · 2 holders which blocks → COMCAST IP PHONE, LLC 318J MIAMI FL
2013-10-03 204-590 not yet reported which blocks → Bell Mobility 6574 Winnipeg —
2013-10-03 289-527 not yet reported which blocks → Bell Mobility 6574 Hamilton —
2013-10-03 406-479 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 6564 BUTTE MT
2013-10-03 479-312 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 ALMA AR
2013-10-03 504-703 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 NEWORLEANS LA
2013-10-03 579-630 not yet reported which blocks → Videotron Ltd. 8306 Ste-Therese —
2013-10-03 647-515 not yet reported which blocks → Bell Mobility 6574 Toronto —
2013-10-03 705-816 not yet reported which blocks → Bell Mobility 6574 Barrie —
2013-10-03 774-479 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F HOLDEN MA
2013-10-03 774-703 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F LEICESTER MA
2013-10-03 774-806 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F WAYLAND MA
2013-10-03 819-600 not yet reported which blocks → Videotron Ltd. 8306 Ottawa-Hull —
2013-10-03 819-987 not yet reported which blocks → Videotron Ltd. 8306 Sherbrooke —
2013-10-03 832-742 0–9 XXXall 10 · 5 holders which blocks → AT&T ENTERPRISES, LLC 516C HOUSTON TX
2013-10-03 832-938 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2013-10-03 832-951 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2013-10-03 832-991 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2013-10-03 832-992 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2013-10-03 906-254 0–9 XXXall 10 · 3 holders which blocks → PENINSULA FIBER NETWORK, LLC - MI 116F TRENARY MI
2013-10-03 906-412 0XXX1XXX · 2 holders which blocks → PENINSULA FIBER NETWORK, LLC - MI 116F WHITE PINE MI
2013-10-03 906-421 0XXX1XXX2XXX3XXX4XXX · 4 holders which blocks → PENINSULA FIBER NETWORK, LLC - MI 116F SKANDIA MI
2013-10-03 906-468 0XXX which blocks → PENINSULA FIBER NETWORK, LLC - MI 116F SMOKYLAKES MI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.