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
2014-04-15 647-749 not yet reported which blocks → Distributel 082E Toronto —
2014-04-15 705-986 not yet reported which blocks → Distributel 082E Barrie —
2014-04-15 734-702 0–9 XXXall 10 · 4 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J WHITMORELK MI
2014-04-15 810-279 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J HARTLAND MI
2014-04-15 850-757 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E CHERRYLAKE FL
2014-04-15 912-771 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E STSIMONSIS GA
2014-04-14 209-650 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 TRACY CA
2014-04-14 209-822 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ANGELSCAMP CA
2014-04-14 321-313 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 COCOA FL
2014-04-14 518-730 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E ALBANY NY
2014-04-14 646-680 0–9 XXXall 10 · 2 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2014-04-14 657-227 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K WESTMINSTR CA
2014-04-14 716-328 0–9 XXXall 10 · 3 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E BUFFALO NY
2014-04-14 747-232 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFN GRHL CA
2014-04-14 786-562 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 MIAMI FL
2014-04-14 810-510 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G COLUMBIAVL MI
2014-04-14 865-351 0–9 XXXall 10 · 4 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J BEAN STATN TN
2014-04-14 909-493 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 UPLAND CA
2014-04-14 929-240 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2014-04-14 985-402 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 HAMMOND LA
2014-04-14 989-499 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G COLEMAN MI
2014-04-11 219-320 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 WHITING IN
2014-04-11 219-704 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 DYER IN
2014-04-11 308-277 0XXX7XXX9XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 MINDEN NE
2014-04-11 407-270 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E ORLANDO FL
2014-04-11 424-347 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LOMITA CA
2014-04-11 442-234 0–9 XXXall 10 · 2 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALM SPG CA
2014-04-11 470-231 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E ATLANTA GA
2014-04-11 470-320 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA NW GA
2014-04-11 470-459 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ATLANTA NW GA
2014-04-11 509-423 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WENATCHEE WA
2014-04-11 512-967 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F KEMPNER TX
2014-04-11 561-501 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E DELRAY BCH FL
2014-04-11 587-388 not yet reported which blocks → Comwave Networks 160G Lethbridge —
2014-04-11 587-680 not yet reported which blocks → Comwave Networks 160G Red Deer —
2014-04-11 587-750 not yet reported which blocks → Comwave Networks 160G Medicine Hat —
2014-04-11 587-860 not yet reported which blocks → Comwave Networks 160G Sherwood Park —
2014-04-11 626-559 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 LA PUENTE CA
2014-04-11 657-236 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ORANGE CA
2014-04-11 657-251 0–9 XXXall 10 · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K GARDEN GRV CA
2014-04-11 778-380 not yet reported which blocks → Comwave Networks 160G Kelowna —
2014-04-11 778-390 not yet reported which blocks → Comwave Networks 160G North Kamloops —
2014-04-11 778-399 not yet reported which blocks → Comwave Networks 160G South Kamloops —
2014-04-11 778-510 not yet reported which blocks → Comwave Networks 160G Prince George —
2014-04-11 828-518 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WATERVILLE NC
2014-04-11 929-266 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN06 NY
2014-04-11 949-531 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2014-04-10 219-304 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J WESTVILLE IN
2014-04-10 269-479 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NILES MI
2014-04-10 437-540 not yet reported which blocks → TELUS Mobility 8303 Toronto —

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.