NumberResearch Membership · Data 09/23/2026

Recent prefix assignments

357 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026

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. 39
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - DC 27
ONVOY, LLC - NJ 20
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
2011-09-27 226-985 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 London —
2011-09-27 334-330 not yet reported which blocks → TROY CABLEVISION, INC. - AL 208D NEWBROCKTN AL
2011-09-27 334-417 not yet reported which blocks → TROY CABLEVISION, INC. - AL 208D ENTERPRISE AL
2011-09-27 385-282 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - UT 3231 SALT LAKE UT
2011-09-27 406-518 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - MT 453F GALATNGTWY MT
2011-09-27 417-614 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → AT&T ENTERPRISES, LLC 516C CARL JCT MO
2011-09-27 469-207 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MCKINNEY TX
2011-09-27 647-530 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-531 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-532 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-533 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-534 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-535 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-536 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-537 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-538 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-539 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-620 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 647-621 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Toronto —
2011-09-27 778-966 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Victoria —
2011-09-27 778-967 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Victoria —
2011-09-27 832-302 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CYPRESS TX
2011-09-27 902-997 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Halifax —
2011-09-27 904-250 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSONVL FL
2011-09-26 480-438 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2011-09-26 587-873 not yet reported which blocks → TELUS Mobility 8301 Edmonton —
2011-09-26 587-879 not yet reported which blocks → TELUS Mobility 8301 Edmonton —
2011-09-26 681-207 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 BECKLEY WV
2011-09-26 740-300 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F NELSONVL OH
2011-09-24 702-201 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 LAS VEGAS NV
2011-09-23 210-307 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANANTONIO TX
2011-09-23 254-263 0–9 XXXall 10 · 4 holders which blocks → AT&T ENTERPRISES, LLC 516C REAGAN TX
2011-09-23 302-281 0–9 XXXall 10 · 7 holders which blocks → METROPCS, INC. 5562 HOLLY OAK DE
2011-09-23 305-709 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KEYS FL
2011-09-23 320-228 0–9 XXXall 10 · 6 holders which blocks → MIDCONTINENT COMMUNICATIONS - MN 429A HOLDINGFD MN
2011-09-23 321-270 0–9 XXXall 10 · 2 holders which blocks → COMCAST IP PHONE, LLC 318J ORLANDO FL
2011-09-23 325-229 0–9 XXXall 10 · 4 holders which blocks → AT&T ENTERPRISES, LLC 516C WESTBROOK TX
2011-09-23 414-323 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILWAUKZN1 WI
2011-09-23 430-235 0–9 XXXall 10 · 5 holders which blocks → AT&T ENTERPRISES, LLC 516C LINDL SWAN TX
2011-09-23 469-216 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2011-09-23 469-260 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2011-09-23 512-575 0–9 XXXall 10 · 8 holders which blocks → AT&T ENTERPRISES, LLC 516C SMITHVILLE TX
2011-09-23 515-829 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2011-09-23 587-267 not yet reported which blocks → Bell West Inc. 2933 Edson —
2011-09-23 587-920 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Edmonton —
2011-09-23 587-921 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Edmonton —
2011-09-23 587-922 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Edmonton —
2011-09-23 587-923 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Edmonton —
2011-09-23 587-924 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Edmonton —
2011-09-23 587-925 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Edmonton —

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.