NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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
TC SYSTEMS, INC. - NY 43
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 37
LEVEL 3 COMMUNICATIONS, LLC - NY 25
NEW CINGULAR WIRELESS PCS, LLC - DC 19
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
— 718-781 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 718-782 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-783 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-784 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-785 6XXX7XXX8XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NWYRCYZN10 NY
— 718-786 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-787 5XXX6XXX7XXX8XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-788 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-789 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-790 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN05 NY
— 718-791 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN09 NY
— 718-792 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-793 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-794 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-795 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NWYRCYZN04 NY
— 718-796 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-797 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-798 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN05 NY
— 718-799 0XXX2XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NWYRCYZN09 NY
— 718-801 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN03 NY
— 718-802 8XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-803 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-804 3XXX5XXX7XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-805 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-806 1XXX7XXX9XXX · 3 holders which blocks → LEVEL 3 TELECOM OF NEW YORK, LP - NY 8473 NWYRCYZN08 NY
— 718-807 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN12 NY
— 718-808 0XXX2XXX3XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NWYRCYZN14 NY
— 718-809 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 718-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 718-812 none assigned yet which blocks → METROPCS, INC. 5562 NWYRCYZN06 NY
— 718-815 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN14 NY
— 718-816 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN14 NY
— 718-817 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN03 NY
— 718-818 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN14 NY
— 718-819 1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN11 NY
— 718-820 2XXX3XXX6XXX7XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN10 NY
— 718-821 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-822 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-823 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-824 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-825 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 TELECOM OF NEW YORK, LP - NY 8473 NWYRCYZN03 NY
— 718-826 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-827 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-828 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-829 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN04 NY
— 718-830 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN08 NY
— 718-831 0XXX2XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN12 NY
— 718-832 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 718-833 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN07 NY
— 718-834 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.