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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2021-08-17 945-213 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2021-08-17 945-214 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2021-08-16 367-994 not yet reported which blocks → TELUS Mobility 8303 Cap-aux-Meules —
2021-08-16 437-292 not yet reported which blocks → Iristel Inc. 154E Toronto —
2021-08-16 502-768 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J LOUISVILLE KY
2021-08-16 571-541 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEESBURG VA
2021-08-16 636-354 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARVESTER MO
2021-08-16 734-537 0XXX1XXX2XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → ONVOY, LLCV - MI 543C MAYBEE MI
2021-08-16 807-780 not yet reported which blocks → Iristel Inc. 154E Atikokan —
2021-08-16 825-360 not yet reported which blocks → Iristel Inc. 154E Lac La Biche —
2021-08-16 825-551 not yet reported which blocks → Iristel Inc. 154E Slave Lake —
2021-08-16 825-876 not yet reported which blocks → Iristel Inc. 154E Pincher Creek —
2021-08-16 859-487 0–9 XXXall 10 · 4 holders which blocks → PAETEC ITEL, LLC 829J LEXINGTON KY
2021-08-13 236-761 not yet reported which blocks → Iristel Inc. 154E Aldergrove —
2021-08-13 239-367 0–9 XXXall 10 · 6 holders which blocks → ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND 7857 NAPLES FL
2021-08-13 331-278 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AURORA IL
2021-08-13 346-495 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2021-08-13 365-319 not yet reported which blocks → Beanfield Technologies Inc. 575G Stoney Creek —
2021-08-13 365-320 not yet reported which blocks → Beanfield Technologies Inc. 575G West Lincoln —
2021-08-13 365-321 not yet reported which blocks → Beanfield Technologies Inc. 575G Winona —
2021-08-13 409-269 0–9 XXXall 10 · 3 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F BEAUMONT TX
2021-08-13 516-907 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
2021-08-13 516-912 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2021-08-13 551-899 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H HASBROKHTS NJ
2021-08-13 561-698 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2021-08-13 609-255 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H PRINCETON NJ
2021-08-13 640-208 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 BEACHHAVEN NJ
2021-08-13 786-809 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E NORTH DADE FL
2021-08-13 813-923 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E ZEPHYRHILS FL
2021-08-13 825-462 not yet reported which blocks → Iristel Inc. 154E Airdrie —
2021-08-13 845-650 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 CARMEL NY
2021-08-13 848-345 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H MATAWAN NJ
2021-08-13 856-688 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H HADDON HTS NJ
2021-08-13 856-699 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H WILLIAMSTN NJ
2021-08-13 856-788 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H HADDONFLD NJ
2021-08-13 856-789 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H VINELAND NJ
2021-08-13 862-599 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H NETCONG NJ
2021-08-13 862-866 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H MT VIEW NJ
2021-08-13 908-699 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H SOMERVILLE NJ
2021-08-13 908-944 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H BERNARDSVL NJ
2021-08-13 914-501 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 MOUNTKISCO NY
2021-08-13 941-279 0–9 XXXall 10 · 7 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 BRADENTON FL
2021-08-13 945-210 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2021-08-13 970-933 0XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 DINOSAUR CO
2021-08-12 220-215 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F IRONTON OH
2021-08-12 224-403 0–9 XXXwhole prefix which blocks → ONVOY, LLC 224C WILMETTE IL
2021-08-12 240-795 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WSHNGTNZN5 MD
2021-08-12 308-406 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VENANGO NE
2021-08-12 308-417 0XXX1XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STAPLETON NE
2021-08-12 308-437 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANOLA NE

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.