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
Download CSV ↓
Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2018-11-21 639-432 not yet reported which blocks → Access Communications Co-operative Limited 280H Dalmeny —
2018-11-21 639-433 not yet reported which blocks → Access Communications Co-operative Limited 280H Delisle —
2018-11-21 639-434 not yet reported which blocks → Access Communications Co-operative Limited 280H Hafford —
2018-11-21 684-782 not yet reported which blocks → AMERICAN SAMOA TELECOMMUNICATIONS AUTHORITY 909H AM SAMOA AS
2018-11-21 786-680 not yet reported which blocks → RIGHT CALL LLC 365J KEYS FL
2018-11-21 857-354 0–9 XXXall 10 · 7 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 BOSTON MA
2018-11-21 906-256 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GWINN MI
2018-11-21 954-750 not yet reported which blocks → RIGHT CALL LLC 365J CORAL SPG FL
2018-11-20 206-833 0–9 XXXall 10 · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SEATTLE WA
2018-11-20 239-299 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C FTMYERSBCH FL
2018-11-20 407-795 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WINTERPARK FL
2018-11-20 409-904 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C HTCHCCKSNF TX
2018-11-20 561-581 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C JUPITER FL
2018-11-20 585-505 0–9 XXXall 10 · 5 holders which blocks → EMPIRE LONG DISTANCE CORPORATION 087H ROCHESTER NY
2018-11-20 639-272 not yet reported which blocks → Access Communications Co-operative Limited 280H Humboldt —
2018-11-20 639-273 not yet reported which blocks → Access Communications Co-operative Limited 280H Kinistino —
2018-11-20 639-274 not yet reported which blocks → Access Communications Co-operative Limited 280H La Ronge —
2018-11-20 639-276 not yet reported which blocks → Access Communications Co-operative Limited 280H Melfort —
2018-11-20 639-277 not yet reported which blocks → Access Communications Co-operative Limited 280H Nipawin —
2018-11-20 639-278 not yet reported which blocks → Access Communications Co-operative Limited 280H Prince Albert —
2018-11-20 639-279 not yet reported which blocks → Access Communications Co-operative Limited 280H Shellbrook —
2018-11-20 639-281 not yet reported which blocks → Access Communications Co-operative Limited 280H Spiritwood —
2018-11-20 639-282 not yet reported which blocks → Access Communications Co-operative Limited 280H Tisdale —
2018-11-20 639-293 not yet reported which blocks → Access Communications Co-operative Limited 280H Watson —
2018-11-20 639-435 not yet reported which blocks → Access Communications Co-operative Limited 280H Langham —
2018-11-20 639-436 not yet reported which blocks → Access Communications Co-operative Limited 280H Lanigan —
2018-11-20 639-437 not yet reported which blocks → Access Communications Co-operative Limited 280H Osler —
2018-11-20 639-438 not yet reported which blocks → Access Communications Co-operative Limited 280H Outlook —
2018-11-20 639-439 not yet reported which blocks → Access Communications Co-operative Limited 280H Rosthern —
2018-11-20 639-441 not yet reported which blocks → Access Communications Co-operative Limited 280H Saskatoon —
2018-11-20 639-442 not yet reported which blocks → Access Communications Co-operative Limited 280H Wakaw —
2018-11-20 639-443 not yet reported which blocks → Access Communications Co-operative Limited 280H Watrous —
2018-11-20 747-285 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E SUNLD TJNG CA
2018-11-20 769-239 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 MENDENHALL MS
2018-11-19 205-360 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F ODENVILLE AL
2018-11-19 208-506 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - ID 7558 BOISE ID
2018-11-19 308-251 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NE 3233 KEARNEY NE
2018-11-19 443-774 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 COLUMBIA MD
2018-11-19 484-783 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 BOYERTOWN PA
2018-11-19 534-444 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - WI 225C EAU CLAIRE WI
2018-11-19 786-644 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E KEYS FL
2018-11-19 925-412 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CONCORD CA
2018-11-19 971-345 0–9 XXXall 10 · 7 holders which blocks → AIRESPRING, INC. 996H SALEM OR
2018-11-16 251-572 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E FRISCOCITY AL
2018-11-16 412-516 0–9 XXXall 10 · 5 holders which blocks → AIRESPRING, INC. 996H PTGSBNZN22 PA
2018-11-16 585-575 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC- NY 384C HONEOYE NY
2018-11-16 585-595 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC- NY 384C HEMLOCK NY
2018-11-16 680-208 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E CATO NY
2018-11-15 309-590 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC 224C BLOOMINGTN IL
2018-11-15 361-337 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - TX 903C BERCLAIR TX

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.