NumberResearch Membership · Data 09/23/2026

Recent prefix assignments

0 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, all time — NPA 718
VERIZON NEW YORK, INC. 555
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
— 718-621 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-622 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-623 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-624 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-625 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-626 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-627 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-628 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-629 7XXX8XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-630 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-631 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN11 NY
— 718-632 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-633 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-634 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN13 NY
— 718-635 0XXX1XXX2XXX3XXX4XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-636 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-638 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-639 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-641 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-642 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-643 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-645 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-646 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-647 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-648 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-649 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-651 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-652 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-653 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-654 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-655 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-656 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-657 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-658 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-659 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-660 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 718-661 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN09 NY
— 718-665 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN03 NY
— 718-667 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN14 NY
— 718-668 4XXX5XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN14 NY
— 718-670 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN09 NY
— 718-671 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-672 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-677 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-678 0–9 XXXall 10 · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-680 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-681 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN03 NY
— 718-686 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-692 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-693 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY

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.