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 516
VERIZON NEW YORK, INC. 210
OMNIPOINT COMMUNICATIONS, INC. - NY 95
NEW CINGULAR WIRELESS PCS, LLC - DC 88
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 78
ONVOY, LLC- NY 42
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
— 516-700 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 516-702 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
— 516-704 3XXX7XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN08 NY
— 516-705 none assigned yet which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN06 NY
— 516-706 not yet reported which blocks → PAETEC ITEL, LLC 829J NASSAUZN05 NY
— 516-707 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
— 516-708 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → RCN TELECOM SERVICES, INC. - NY 7353 NASSAUZN01 NY
— 516-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 516-712 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TC SYSTEMS, INC. - NY 7140 NASSAUZN05 NY
— 516-713 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN07 NY
— 516-714 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → AT&T - LOCAL 7421 NASSAUZN07 NY
— 516-719 not yet reported which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN08 NY
— 516-720 not yet reported which blocks → AMERICAN NETWORK, INC. 8667 NASSAUZN05 NY
— 516-721 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN07 NY
— 516-722 not yet reported which blocks → SCARSDALE SECURITY SYSTEMS, INC. 2612 NASSAUZN05 NY
— 516-723 1XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J NASSAUZN04 NY
— 516-724 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
— 516-729 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
— 516-730 0XXX1XXX2XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN07 NY
— 516-731 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-732 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
— 516-733 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-734 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TC SYSTEMS, INC. - NY 7140 NASSAUZN01 NY
— 516-735 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-739 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN05 NY
— 516-741 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN05 NY
— 516-742 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN05 NY
— 516-745 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN05 NY
— 516-746 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN05 NY
— 516-747 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN05 NY
— 516-750 5XXX6XXX7XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
— 516-752 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 FARMINGDL NY
— 516-753 9XXX which blocks → VERIZON NEW YORK, INC. 9104 FARMINGDL NY
— 516-755 3XXX7XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 FARMINGDL NY
— 516-756 9XXX which blocks → VERIZON NEW YORK, INC. 9104 FARMINGDL NY
— 516-759 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN04 NY
— 516-762 0XXX1XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J NASSAUZN07 NY
— 516-763 8XXX which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN06 NY
— 516-764 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN06 NY
— 516-765 0–9 XXXall 10 · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN09 NY
— 516-766 9XXX which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN06 NY
— 516-767 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN01 NY
— 516-768 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
— 516-769 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
— 516-770 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
— 516-771 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN06 NY
— 516-772 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 FARMINGDL NY
— 516-773 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN01 NY
— 516-775 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN02 NY
— 516-776 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 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.