NumberResearch Membership · Data 09/22/2026

Recent prefix assignments

0 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, all time — NPA 914
VERIZON NEW YORK, INC. 191
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
— 914-422 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-423 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN01 NY
— 914-428 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-448 3XXX6XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-472 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN05 NY
— 914-476 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN01 NY
— 914-478 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN04 NY
— 914-479 1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN04 NY
— 914-480 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 914-493 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-499 0XXX3XXX8XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 ARMONK VLG NY
— 914-524 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-526 1XXX7XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 LAKELAND NY
— 914-528 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 LAKELAND NY
— 914-533 0XXX1XXX3XXX4XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 LEWISBORO NY
— 914-576 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN03 NY
— 914-591 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN04 NY
— 914-592 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-593 3XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-594 0XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-621 1XXX2XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 MAHOPAC NY
— 914-628 0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 MAHOPAC NY
— 914-631 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-632 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN03 NY
— 914-633 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN03 NY
— 914-636 9XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN03 NY
— 914-637 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN03 NY
— 914-640 0XXX5XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-641 0XXX1XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-642 3XXX4XXX5XXX6XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-644 0XXX2XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-654 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN03 NY
— 914-660 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 914-662 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW YORK, INC. 9104 MT VERNON NY
— 914-663 3XXX5XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 MT VERNON NY
— 914-664 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 MT VERNON NY
— 914-665 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 MT VERNON NY
— 914-666 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 MOUNTKISCO NY
— 914-667 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 MT VERNON NY
— 914-668 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 MT VERNON NY
— 914-669 2XXX3XXX4XXX6XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NORTHSALEM NY
— 914-670 1XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN06 NY
— 914-674 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN04 NY
— 914-681 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-682 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-683 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-684 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-686 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-690 3XXX4XXX6XXX7XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN09 NY
— 914-693 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN04 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.