NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
2021-01-26 762-273 1XXX2XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → ONVOY, LLC - GA 067D CAVESPRING GA
2021-01-26 762-276 0–9 XXXall 10 · 8 holders which blocks → ONVOY, LLC - GA 067D CUSSETA GA
2021-01-26 762-691 0XXX1XXX2XXX3XXX4XXX · 5 holders which blocks → ONVOY, LLC - GA 067D GAY GA
2021-01-26 762-701 0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - GA 067D PINE MT GA
2021-01-26 762-721 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - GA 067D ROYSTON GA
2021-01-26 772-788 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H FORTPIERCE FL
2021-01-26 816-641 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MO 4932 KANSASCITY MO
2021-01-26 838-234 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H ALTAMONT NY
2021-01-26 838-345 0XXX3XXX4XXX6XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H ARGYLE NY
2021-01-26 838-356 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H AVERILL PK NY
2021-01-26 838-399 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H GRANVILLE NY
2021-01-26 838-465 0XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H ASABLFORKS NY
2021-01-26 873-968 not yet reported which blocks → SSi Micro Ltd. 940G Matagami —
2021-01-26 873-969 not yet reported which blocks → SSi Micro Ltd. 940G Lebel-sur-Quevillon —
2021-01-26 912-595 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - GA 067D SPRINGFLD GA
2021-01-26 929-577 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H NWYRCYZN03 NY
2021-01-25 224-370 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2021-01-25 251-339 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E GOSPORT AL
2021-01-25 251-390 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E BAYOUBATRE AL
2021-01-25 251-420 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - AL 604E BEATRICE AL
2021-01-25 251-430 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - AL 604E COFFEEVL AL
2021-01-25 251-440 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - AL 604E FRISCOCITY AL
2021-01-25 251-480 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - AL 604E MONROEVL AL
2021-01-25 251-530 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - AL 604E PINE APPLE AL
2021-01-25 331-388 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H SUGARGROVE IL
2021-01-25 331-788 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H GENEVA IL
2021-01-25 339-500 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - MA 892D LYNN MA
2021-01-25 346-515 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C RICHMNRNBG TX
2021-01-25 413-390 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F SPRINGFLD MA
2021-01-25 435-281 0–9 XXXall 10 · 4 holders which blocks → NUSO, LLC 478J WASATCH UT
2021-01-25 504-445 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - LA 749E KENNER LA
2021-01-25 540-979 0–9 XXXall 10 · 2 holders which blocks → HD CARRIER LLC 321J ROANOKE VA
2021-01-25 629-899 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - TN 525E FRANKLIN TN
2021-01-25 630-720 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 AURORA IL
2021-01-25 640-614 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - NJ 637C EGG HARBOR NJ
2021-01-25 667-301 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 PRINCEFRCK MD
2021-01-25 720-844 0–9 XXXall 10 · 3 holders which blocks → LEAP TELECOM, LLC 616J DENVER CO
2021-01-25 803-964 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J HAMPTON SC
2021-01-25 830-382 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - TX 903C FLORESVL TX
2021-01-25 830-508 0XXX1XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H KARNESCITY TX
2021-01-25 839-202 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 COLUMBIA SC
2021-01-25 857-855 0–9 XXXwhole prefix which blocks → ONVOY, LLC - MA 892D BOSTON MA
2021-01-25 873-963 not yet reported which blocks → SSi Micro Ltd. 940G Eastmain —
2021-01-25 873-966 not yet reported which blocks → SSi Micro Ltd. 940G Waswanipi —
2021-01-25 908-886 0XXX1XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → ONVOY, LLC - NJ 637C HIGHBRIDGE NJ
2021-01-25 908-893 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - NJ 637C HAMPTON NJ
2021-01-25 908-980 0XXX2XXX3XXX4XXX8XXX · 4 holders which blocks → ONVOY, LLC - NJ 637C LONGVALLEY NJ
2021-01-25 929-566 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C NWYRCYZN04 NY
2021-01-25 956-952 0–9 XXXall 10 · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H LAREDO TX
2021-01-25 956-964 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H ENCINAL TX

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.