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
2016-11-30 709-209 not yet reported which blocks → TELUS Integrated Communications 2782 Torbay —
2016-11-30 778-576 not yet reported which blocks → TELUS 8086 Fort St. John —
2016-11-30 778-635 not yet reported which blocks → TELUS 8086 Invermere —
2016-11-30 778-659 not yet reported which blocks → TELUS 8086 Kitimat —
2016-11-30 778-661 not yet reported which blocks → TELUS 8086 Merritt —
2016-11-30 778-671 not yet reported which blocks → TELUS 8086 Nelson —
2016-11-30 929-390 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2016-11-30 929-401 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN08 NY
2016-11-30 929-402 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN09 NY
2016-11-30 929-403 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN10 NY
2016-11-30 929-404 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN11 NY
2016-11-30 929-405 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN12 NY
2016-11-30 929-406 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN13 NY
2016-11-30 929-407 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN15 NY
2016-11-30 971-978 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - OR 750E PORTLAND OR
2016-11-29 224-426 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOX LAKE IL
2016-11-29 619-514 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 SNDG SNDG CA
2016-11-28 209-621 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 HUGHSON CA
2016-11-28 236-862 not yet reported which blocks → Fido Solutions Inc. 5643 Vancouver —
2016-11-28 236-866 not yet reported which blocks → Fido Solutions Inc. 5643 Vancouver —
2016-11-28 236-867 not yet reported which blocks → Fido Solutions Inc. 5643 Vancouver —
2016-11-28 312-439 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2016-11-28 312-723 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2016-11-28 325-308 0–9 XXXall 10 · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7249 OZONA TX
2016-11-28 812-977 0–9 XXXall 10 · 6 holders which blocks → MILES COMMUNICATIONS INC. DBA ENHANCED TELECOMM CO 4857 LAWRENCEBG IN
2016-11-28 904-862 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 JACKSONVL FL
2016-11-23 207-560 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF MAINE, LLC- ME 925H PORTLAND ME
2016-11-23 248-832 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 NORTHVILLE MI
2016-11-23 302-702 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J SEAFORD DE
2016-11-23 385-261 0–9 XXXall 10 · 4 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J SALT LAKE UT
2016-11-23 469-968 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LEWISVILLE TX
2016-11-23 505-347 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2016-11-23 587-840 not yet reported which blocks → Iristel Inc. 154E Bonnyville —
2016-11-23 587-841 not yet reported which blocks → Iristel Inc. 154E Boyle —
2016-11-23 587-842 not yet reported which blocks → Iristel Inc. 154E Drayton Valley —
2016-11-23 720-462 0–9 XXXall 10 · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DENVER CO
2016-11-23 754-801 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 FTLAUDERDL FL
2016-11-23 870-900 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AR 5179 VIOLA AR
2016-11-23 956-766 0–9 XXXall 10 · 4 holders which blocks → FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D MISSION TX
2016-11-23 970-844 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 DURANGO CO
2016-11-22 226-391 not yet reported which blocks → Bell Mobility 6574 Tobermory —
2016-11-22 267-742 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 DOYLESTOWN PA
2016-11-22 320-470 0XXX1XXX5XXX8XXX9XXX · 2 holders which blocks → MIDWEST NETWORK SOLUTIONS HUB LLC 973H ST CLOUD MN
2016-11-22 470-353 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2016-11-22 470-595 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2016-11-22 616-251 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2016-11-22 620-472 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → MCC TELEPHONY LLC 593K GRIDLEY KS
2016-11-22 620-526 0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCC TELEPHONY LLC 593K LEROY KS
2016-11-22 667-240 0–9 XXXall 10 · 5 holders which blocks → BARR TELL USA, INC. 964H COLUMBIA MD
2016-11-22 667-967 0–9 XXXall 10 · 5 holders which blocks → BARR TELL USA, INC. 964H GLENBURNIE MD

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.