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
2013-09-17 506-927 not yet reported which blocks → Fido Solutions Inc. 8820 St. Stephen —
2013-09-17 506-928 not yet reported which blocks → Fido Solutions Inc. 8820 Florenceville —
2013-09-17 506-929 not yet reported which blocks → Fido Solutions Inc. 8820 Campbellton —
2013-09-17 506-966 not yet reported which blocks → Fido Solutions Inc. 8820 Dorchester —
2013-09-17 506-968 not yet reported which blocks → Fido Solutions Inc. 8820 Plaster Rock —
2013-09-17 506-969 not yet reported which blocks → Fido Solutions Inc. 8820 Neguac —
2013-09-17 581-628 not yet reported which blocks → TELUS Quebec 2243 Quebec —
2013-09-17 581-630 not yet reported which blocks → TELUS Quebec 8083 Bonaventure —
2013-09-17 581-631 not yet reported which blocks → TELUS Quebec 8083 Matane —
2013-09-17 581-632 not yet reported which blocks → TELUS Quebec 8083 Montmagny —
2013-09-17 581-633 not yet reported which blocks → TELUS Quebec 8083 Saint-Henri-de-Levis —
2013-09-17 814-737 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J ERIE PA
2013-09-17 970-636 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF COLORADO, LLC - CO 278F YAMPA CO
2013-09-16 437-889 not yet reported which blocks → Fibernetics Corporation 464D Toronto —
2013-09-16 516-262 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2013-09-16 561-507 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2013-09-16 587-743 not yet reported which blocks → Distributel 081E High Level —
2013-09-16 587-831 not yet reported which blocks → Bell Mobility 6574 Calgary —
2013-09-16 616-219 0–9 XXXall 10 · 6 holders which blocks → MICHIGAN BELL TEL CO 9323 DUTTON MI
2013-09-16 631-992 0–9 XXXall 10 · 4 holders which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 DEER PARK NY
2013-09-16 657-241 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J HUNTITNBCH CA
2013-09-16 778-904 not yet reported which blocks → Bell Mobility 6574 Vancouver —
2013-09-16 781-813 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 SAUGUS MA
2013-09-16 914-440 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E YORKTN HTS NY
2013-09-16 929-247 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2013-09-16 929-248 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
2013-09-16 929-250 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN06 NY
2013-09-16 929-253 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2013-09-16 929-261 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN08 NY
2013-09-16 929-264 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN09 NY
2013-09-16 929-278 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN10 NY
2013-09-16 929-321 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN14 NY
2013-09-16 929-428 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN15 NY
2013-09-16 949-397 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LAGUNA BCH CA
2013-09-16 971-804 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PORTLAND OR
2013-09-13 267-512 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J PHPHSBZN43 PA
2013-09-13 432-803 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ODESSA TX
2013-09-13 469-808 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PLANO TX
2013-09-13 509-567 0–9 XXXall 10 · 6 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K PASCO WA
2013-09-13 509-919 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 SPOKANE WA
2013-09-13 561-469 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 WPALMBEACH FL
2013-09-13 561-808 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 DELRAY BCH FL
2013-09-13 561-990 0–9 XXXall 10 · 5 holders which blocks → INVOXIO INCORPORATED 158H BOCA RATON FL
2013-09-13 586-342 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MT CLEMENS MI
2013-09-13 701-413 not yet reported which blocks → MIDCONTINENT COMMUNICATIONS - ND 3065 SOUTHHEART ND
2013-09-13 865-401 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J MASCOT TN
2013-09-13 916-571 0–9 XXXall 10 · 7 holders which blocks → COMCAST PHONE OF CALIFORNIA, LLC 394L SCRM NORTH CA
2013-09-13 954-908 0–9 XXXall 10 · 7 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 FTLAUDERDL FL
2013-09-12 202-774 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 6402 WSHNGTNZN1 DC
2013-09-12 484-926 0–9 XXXall 10 · 5 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 READING PA

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.