NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

355 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, last 30 days
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
— 914-740 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TC SYSTEMS, INC. - NY 7140 WSCHSTZN03 NY
— 914-741 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 PLEASANTVL NY
— 914-742 0XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 PLEASANTVL NY
— 914-743 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → CSC VOICE, LLC 612K LAKELAND NY
— 914-745 0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 PLEASANTVL NY
— 914-747 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 PLEASANTVL NY
— 914-749 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 PLEASANTVL NY
— 914-750 2XXX5XXX7XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WSCHSTZN08 NY
— 914-751 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TC SYSTEMS, INC. - NY 7140 WSCHSTZN01 NY
— 914-755 8XXX which blocks → METROPCS, INC. 5562 NEWBURGH NY
— 914-758 0–9 XXXall 10 · 6 holders which blocks → TELNYX LLC 073H WSCHSTZN09 NY
— 914-760 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN08 NY
— 914-761 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN08 NY
— 914-762 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 OSSINING NY
— 914-763 4XXX which blocks → VERIZON NEW YORK, INC. 9104 SOUTHSALEM NY
— 914-764 2XXX3XXX6XXX7XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 POUNDRIDGE NY
— 914-765 9XXX which blocks → VERIZON NEW YORK, INC. 9104 ARMONK VLG NY
— 914-766 6XXX which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E CROTON FLS NY
— 914-767 4XXX5XXX which blocks → VERIZON NEW YORK, INC. 9104 KATONAH NY
— 914-768 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN05 NY
— 914-769 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 PLEASANTVL NY
— 914-771 0XXX1XXX2XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN02 NY
— 914-772 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WSCHSTZN08 NY
— 914-773 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 PLEASANTVL NY
— 914-775 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN02 NY
— 914-776 4XXX8XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN02 NY
— 914-777 8XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN06 NY
— 914-779 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN02 NY
— 914-780 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 914-784 9XXX which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-785 0XXX6XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-787 0XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN02 NY
— 914-788 2XXX which blocks → VERIZON NEW YORK, INC. 9104 PEEKSKILL NY
— 914-789 3XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN07 NY
— 914-792 4XXX8XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN02 NY
— 914-793 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN02 NY
— 914-797 none assigned yet which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MONTICELLO NY
— 914-798 not yet reported which blocks → PAETEC ITEL, LLC 829J WSCHSTZN08 NY
— 914-799 none assigned yet which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MONTICELLO NY
— 914-800 0–9 XXXall 10 · 8 holders which blocks → ONVOY, LLC- NY 384C OSSINING NY
— 914-801 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7650 PLEASANTVL NY
— 914-803 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 WSCHSTZN01 NY
— 914-804 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN08 NY
— 914-805 8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NEWBURGH NY
— 914-806 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WSCHSTZN06 NY
— 914-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 914-812 not yet reported which blocks → PAETEC ITEL, LLC 829J WSCHSTZN08 NY
— 914-813 none assigned yet which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 WSCHSTZN03 NY
— 914-815 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WSCHSTZN06 NY
— 914-816 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ARMONK VLG 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.