NumberResearch Membership · Data 09/22/2026

Recent prefix assignments

354 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026

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 26
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
— 716-257 0XXX1XXX2XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 CATTARAGUS NY
— 716-266 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LOCKPORT NY
— 716-267 0XXX1XXX6XXX8XXX · 3 holders which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 KENNEDY NY
— 716-269 none assigned yet which blocks → CHAUTAUQUA & ERIE TEL. CORP. 0078 MAYVILLE NY
— 716-270 3XXX7XXX9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BUFFALO NY
— 716-274 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC- NY 384C BUFFALO NY
— 716-276 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TC SYSTEMS, INC. - NY 7140 WILLIAMSVL NY
— 716-278 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NIAGARAFLS NY
— 716-280 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 LOCKPORT NY
— 716-282 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NIAGARAFLS NY
— 716-283 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NIAGARAFLS NY
— 716-284 3XXX which blocks → VERIZON NEW YORK, INC. 9104 NIAGARAFLS NY
— 716-285 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NIAGARAFLS NY
— 716-286 5XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NIAGARAFLS NY
— 716-287 0XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 ELLINGTON NY
— 716-296 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW YORK, INC. 9104 CHERRY CRK NY
— 716-297 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NIAGARAFLS NY
— 716-298 7XXX which blocks → VERIZON NEW YORK, INC. 9104 NIAGARAFLS NY
— 716-299 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J NIAGARAFLS NY
— 716-300 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC- NY 384C FORESTVL NY
— 716-304 0XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J NIAGARAFLS NY
— 716-307 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 OLEAN NY
— 716-308 none assigned yet which blocks → METROPCS, INC. 5562 BUFFALO NY
— 716-310 none assigned yet which blocks → METROPCS, INC. 5562 BUFFALO NY
— 716-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 716-312 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 HAMBURG NY
— 716-313 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 BUFFALO NY
— 716-316 none assigned yet which blocks → METROPCS, INC. 5562 BUFFALO NY
— 716-318 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K MEDINA NY
— 716-319 0XXX4XXX7XXX8XXX · 3 holders which blocks → AT&T - LOCAL 7421 BUFFALO NY
— 716-324 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E WESTSENECA NY
— 716-326 not yet reported which blocks → CHAUTAUQUA & ERIE TEL. CORP. 0078 WESTFIELD NY
— 716-332 not yet reported which blocks → PAETEC ITEL, LLC 829J BUFFALO NY
— 716-337 1XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 NO COLLINS NY
— 716-342 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-348 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 BUFFALO NY
— 716-353 0XXX1XXX2XXX3XXX5XXX6XXX7XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 MACHIAS NY
— 716-354 1XXX3XXX7XXX8XXX · 2 holders which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 STEAMBURG NY
— 716-355 0XXX1XXX3XXX5XXX7XXX · 4 holders which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 CLYMER NY
— 716-357 0XXX1XXX7XXX · 3 holders which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 CHAUTAUQUA NY
— 716-358 0XXX1XXX8XXX · 3 holders which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 RANDOLPH NY
— 716-360 not yet reported which blocks → SPOK, INC. 6630 LANCASTER NY
— 716-361 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-362 not yet reported which blocks → PAETEC ITEL, LLC 829J BUFFALO NY
— 716-363 0XXX2XXX5XXX6XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 DUNKIRK NY
— 716-366 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 DUNKIRK NY
— 716-369 not yet reported which blocks → SPOK, INC. 6630 TONAWANDA NY
— 716-372 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 OLEAN NY
— 716-373 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 OLEAN NY
— 716-374 0–9 XXXall 10 · 3 holders which blocks → NUSO, LLC 732J BUFFALO NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.