NumberResearch Membership · Data 09/25/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/25/2026

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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 718-843 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-845 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-846 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-847 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-848 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-849 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-850 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-851 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-852 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-853 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-854 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-855 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-856 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-857 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-858 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-859 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-860 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN03 NY
— 718-861 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN03 NY
— 718-862 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-863 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-868 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN13 NY
— 718-869 0XXX1XXX2XXX3XXX4XXX6XXX9XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN13 NY
— 718-871 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-875 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-876 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN14 NY
— 718-881 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-882 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-883 0XXX9XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-884 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-885 4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-886 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN09 NY
— 718-888 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN09 NY
— 718-890 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-891 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-892 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-893 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN03 NY
— 718-894 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-895 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN12 NY
— 718-896 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-897 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-898 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-899 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-901 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN03 NY
— 718-904 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-910 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 718-917 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-918 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-919 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-920 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-921 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.