NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

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

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
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 27
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2019-01-30 458-239 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2019-01-30 609-749 0–9 XXXall 10 · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 FORT DIX NJ
2019-01-30 617-655 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - MA 892D BOSTON MA
2019-01-30 629-217 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F SMYRNA TN
2019-01-30 669-260 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS NORTH CA
2019-01-30 681-799 0–9 XXXall 10 · 2 holders which blocks → HD CARRIER LLC 321J CHRLSTNZN1 WV
2019-01-30 816-534 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 KANSASCITY MO
2019-01-30 986-666 0–9 XXXall 10 · 8 holders which blocks → FRACTEL, LLC 965H NAMPA ID
2019-01-30 986-777 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H EMMETT ID
2019-01-30 986-999 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H BOISE ID
2019-01-29 253-393 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WA 6121 TACOMA WA
2019-01-29 406-500 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H BILLINGS MT
2019-01-29 470-567 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA NE GA
2019-01-29 470-704 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2019-01-29 516-604 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2019-01-29 754-799 0–9 XXXall 10 · 5 holders which blocks → INVOXIO INCORPORATED 158H HOLLYWOOD FL
2019-01-29 772-400 0–9 XXXall 10 · 4 holders which blocks → INVOXIO INCORPORATED 158H VERO BEACH FL
2019-01-29 782-776 not yet reported which blocks → TELUS Mobility 8303 Shelburne —
2019-01-29 786-652 0–9 XXXall 10 · 3 holders which blocks → INVOXIO INCORPORATED 158H KEYS FL
2019-01-28 223-666 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H HARISBGZN1 PA
2019-01-28 236-468 not yet reported which blocks → TELUS 8086 Haney —
2019-01-28 236-971 not yet reported which blocks → TELUS Mobility 8301 Vancouver —
2019-01-28 319-666 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H CEDARFALLS IA
2019-01-28 437-685 not yet reported which blocks → TELUS Mobility 8303 Toronto —
2019-01-28 445-900 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H PHPHSBZN40 PA
2019-01-28 531-666 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H FREMONT NE
2019-01-28 531-800 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H OMAHA NE
2019-01-28 551-303 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 CLOSTER NJ
2019-01-28 551-340 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 HACKENSACK NJ
2019-01-28 551-370 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 RIDGEWOOD NJ
2019-01-28 605-600 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H RAPID CITY SD
2019-01-28 605-667 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H HARISBGTEA SD
2019-01-28 620-444 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H GARDENCITY KS
2019-01-28 620-666 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H FLORENCE KS
2019-01-28 620-800 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → FRACTEL, LLC 965H ANTHONY KS
2019-01-28 720-640 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CO 6118 HUDSON CO
2019-01-28 720-750 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 DENVER CO
2019-01-28 810-529 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2019-01-28 814-999 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H JOHNSTOWN PA
2019-01-28 828-666 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H HICKORY NC
2019-01-28 870-705 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C ASH FLAT AR
2019-01-28 878-787 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H PTTSBGZON1 PA
2019-01-28 910-666 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H WILMINGTON NC
2019-01-25 213-588 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H LSAN DA 14 CA
2019-01-25 213-877 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H LSAN DA 09 CA
2019-01-25 220-800 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H WLAFAYETTE OH
2019-01-25 229-297 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D PARROTT GA
2019-01-25 229-451 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - GA 067D IRWINVILLE GA
2019-01-25 229-544 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D MORVEN GA
2019-01-25 229-592 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - GA 067D PAVO GA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.