NumberResearch Membership · Data 09/29/2026

Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 23
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
2016-04-06 825-657 not yet reported which blocks → Distributel 081E Stettler —
2016-04-06 825-658 not yet reported which blocks → Distributel 081E Sunchild O'Chiese —
2016-04-06 825-659 not yet reported which blocks → Distributel 081E Sundre —
2016-04-06 825-660 not yet reported which blocks → Distributel 081E Sylvan Lake —
2016-04-06 825-661 not yet reported which blocks → Distributel 081E Three Hills —
2016-04-06 825-662 not yet reported which blocks → Distributel 081E Torrington —
2016-04-06 825-663 not yet reported which blocks → Distributel 081E Trochu —
2016-04-06 825-664 not yet reported which blocks → Distributel 081E Veteran —
2016-04-06 825-665 not yet reported which blocks → Distributel 081E Youngstown —
2016-04-06 831-999 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SANTA CRUZ CA
2016-04-06 929-306 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN11 NY
2016-04-06 929-307 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN13 NY
2016-04-06 929-308 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN14 NY
2016-04-06 929-309 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN15 NY
2016-04-05 240-810 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN10 MD
2016-04-05 636-310 0XXX1XXX2XXX3XXX8XXX9XXX · 4 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K HILLSBORO MO
2016-04-05 825-617 not yet reported which blocks → Distributel 081E Blackfalds —
2016-04-05 825-618 not yet reported which blocks → Distributel 081E Bowden —
2016-04-05 825-619 not yet reported which blocks → Distributel 081E Byemoor —
2016-04-05 825-620 not yet reported which blocks → Distributel 081E Carbon —
2016-04-05 825-621 not yet reported which blocks → Distributel 081E Caroline —
2016-04-05 825-622 not yet reported which blocks → Distributel 081E Castor —
2016-04-05 825-623 not yet reported which blocks → Distributel 081E Cereal —
2016-04-05 825-624 not yet reported which blocks → Distributel 081E Clive —
2016-04-05 825-625 not yet reported which blocks → Distributel 081E Consort —
2016-04-05 825-626 not yet reported which blocks → Distributel 081E Coronation —
2016-04-05 825-627 not yet reported which blocks → Distributel 081E Craigmyle —
2016-04-05 825-628 not yet reported which blocks → Distributel 081E Delburne —
2016-04-05 825-629 not yet reported which blocks → Distributel 081E Delia —
2016-04-05 825-630 not yet reported which blocks → Distributel 081E Didsbury —
2016-04-05 825-631 not yet reported which blocks → Distributel 081E Donalda —
2016-04-05 825-632 not yet reported which blocks → Distributel 081E Drumheller —
2016-04-05 825-633 not yet reported which blocks → Distributel 081E East Coulee —
2016-04-05 825-634 not yet reported which blocks → Distributel 081E Eckville —
2016-04-05 825-635 not yet reported which blocks → Distributel 081E Elnora —
2016-04-05 980-257 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 CHARLOTTE NC
2016-04-04 226-285 not yet reported which blocks → TELUS Integrated Communications 2782 Walkerton —
2016-04-04 267-366 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN2 PA
2016-04-04 484-591 0–9 XXXall 10 · 7 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 EASTON PA
2016-04-04 518-619 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → SLIC NETWORK SOLUTIONS, INC. - NY 193C SARANAC LK NY
2016-04-04 571-320 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 TRIANGLE VA
2016-04-04 825-612 not yet reported which blocks → Distributel 081E Acadia Valley —
2016-04-04 825-613 not yet reported which blocks → Distributel 081E Alix —
2016-04-04 825-614 not yet reported which blocks → Distributel 081E Altario —
2016-04-04 825-615 not yet reported which blocks → Distributel 081E Bentley —
2016-04-04 825-616 not yet reported which blocks → Distributel 081E Big Valley —
2016-04-01 206-606 0–9 XXXall 10 · 3 holders which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2016-04-01 253-240 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 TACOMA WA
2016-04-01 385-251 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 KAYSVILLE UT
2016-04-01 510-707 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 OKLD TRNID CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.