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 914
VERIZON NEW YORK, INC. 191
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 82
OMNIPOINT COMMUNICATIONS, INC. - NY 71
NEW CINGULAR WIRELESS PCS, LLC - DC 60
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 55
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
— 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
— 914-643 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-644 0XXX2XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-645 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-646 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-649 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-652 0XXX1XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 WSCHSTZN02 NY
— 914-653 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7650 WSCHSTZN09 NY
— 914-654 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN03 NY
— 914-656 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-659 2XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-660 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 914-661 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NYACK 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
— 914-671 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-672 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 NY
— 914-673 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 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
— 914-689 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 MOUNTKISCO 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
— 914-694 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-696 3XXX5XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-697 8XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-698 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN06 NY
— 914-699 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 MT VERNON NY
— 914-700 not yet reported which blocks → NY
— 914-701 1XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN09 NY
— 914-703 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J WSCHSTZN07 NY
— 914-705 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WSCHSTZN08 NY
— 914-706 none assigned yet which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 KINGSTON NY
— 914-707 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN08 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.