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
— 716-375 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 OLEAN NY
— 716-376 0XXX4XXX6XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 OLEAN NY
— 716-378 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 OLEAN NY
— 716-379 3XXX6XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 OLEAN NY
— 716-380 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-386 1XXX which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 BEMUSPOINT NY
— 716-390 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BUFFALO NY
— 716-397 4XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 JAMESTOWN NY
— 716-400 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BUFFALO NY
— 716-404 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 GRAND IS NY
— 716-405 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 LEWISTON NY
— 716-406 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 CLARENCCTR NY
— 716-407 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 CLARENCE NY
— 716-408 0XXX6XXX7XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BUFFALO NY
— 716-410 7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FREDONIA NY
— 716-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 716-417 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TONAWANDA NY
— 716-422 0–9 XXXall 10 · 8 holders which blocks → ONVOY, LLC- NY 384C HAMBURG NY
— 716-430 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-432 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BUFFALO NY
— 716-433 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 LOCKPORT NY
— 716-434 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 LOCKPORT NY
— 716-435 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-437 0XXX2XXX3XXX6XXX7XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 RUSHFORD NY
— 716-438 6XXX7XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 LOCKPORT NY
— 716-439 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 LOCKPORT NY
— 716-440 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-441 not yet reported which blocks → SPOK, INC. 6630 BUFFALO NY
— 716-443 not yet reported which blocks → SPOK, INC. 6630 TONAWANDA NY
— 716-445 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-446 0XXX1XXX3XXX6XXX7XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 BUFFALO NY
— 716-447 5XXX which blocks → VERIZON NEW YORK, INC. 9104 BUFFALO NY
— 716-448 not yet reported which blocks → SPOK, INC. 6630 TONAWANDA NY
— 716-449 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BUFFALO NY
— 716-450 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JAMESTOWN NY
— 716-456 1XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 LAKEWOOD NY
— 716-457 0XXX3XXX5XXX6XXX7XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 JAVA NY
— 716-459 not yet reported which blocks → SPOK, INC. 6630 TONAWANDA NY
— 716-460 not yet reported which blocks → SPOK, INC. 6630 TONAWANDA NY
— 716-463 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC- NY 384C BUFFALO NY
— 716-465 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BUFFALO NY
— 716-470 not yet reported which blocks → SPOK, INC. 6630 LANCASTER NY
— 716-471 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TONAWANDA NY
— 716-472 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-474 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BUFFALO NY
— 716-478 0XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J LOCKPORT NY
— 716-479 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-480 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-481 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BUFFALO NY
— 716-483 not yet reported which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 JAMESTOWN 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.