NumberResearch Membership · Data 09/21/2026

Recent prefix assignments

338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026

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. 38
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
— 716-584 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC- NY 384C SALAMANCA NY
— 716-587 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J BUFFALO NY
— 716-588 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC- NY 384C RANSOMVL NY
— 716-592 6XXX which blocks → VERIZON NEW YORK, INC. 9104 SPRINGVL NY
— 716-595 not yet reported which blocks → CASSADAGA TEL. CORP. 0076 CASSADAGA NY
— 716-597 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 BUFFALO NY
— 716-599 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC- NY 384C SPRINGVL NY
— 716-601 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 LANCASTER NY
— 716-604 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → TC SYSTEMS, INC. - NY 7140 BUFFALO NY
— 716-605 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
— 716-606 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NIAGARAFLS NY
— 716-607 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JAMESTOWN NY
— 716-608 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 WESTSENECA NY
— 716-609 5XXX7XXX8XXX9XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 TONAWANDA NY
— 716-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 716-614 0XXX2XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 TONAWANDA NY
— 716-616 0XXX2XXX3XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-619 not yet reported which blocks → SPOK, INC. 6630 WILLIAMSVL NY
— 716-620 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BUFFALO NY
— 716-622 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TONAWANDA NY
— 716-623 2XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-625 0XXX1XXX2XXX3XXX5XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 PENDLETON NY
— 716-626 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-627 0XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 WANAKAH NY
— 716-628 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 TONAWANDA NY
— 716-629 3XXX which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-630 9XXX which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-631 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-632 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-633 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-634 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-635 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-636 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-639 5XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-640 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 JAMESTOWN NY
— 716-642 not yet reported which blocks → SPOK, INC. 6630 TONAWANDA NY
— 716-643 not yet reported which blocks → SPOK, INC. 6630 TONAWANDA NY
— 716-644 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BUFFALO NY
— 716-645 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-646 7XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 HAMBURG NY
— 716-648 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 HAMBURG NY
— 716-649 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 HAMBURG NY
— 716-650 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → AT&T - LOCAL 7421 WILLIAMSVL NY
— 716-651 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 LANCASTER NY
— 716-652 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 EASTAURORA NY
— 716-653 not yet reported which blocks → SPOK, INC. 6630 TONAWANDA NY
— 716-655 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 EASTAURORA NY
— 716-656 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 WESTSENECA NY
— 716-661 0XXX which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 JAMESTOWN NY
— 716-662 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ORCHARD PK NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.