NumberResearch Membership · Data 09/28/2026

Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 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
— 607-722 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-723 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-724 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-725 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BINGHAMTON NY
— 607-727 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BINGHAMTON NY
— 607-729 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-731 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELMIRA NY
— 607-732 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ELMIRA NY
— 607-733 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ELMIRA NY
— 607-734 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ELMIRA NY
— 607-735 2XXX which blocks → VERIZON NEW YORK, INC. 9104 ELMIRA NY
— 607-737 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ELMIRA NY
— 607-738 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ELMIRA NY
— 607-739 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ELMIRA NY
— 607-741 8XXX which blocks → VERIZON NEW YORK, INC. 9104 ENDICOTT NY
— 607-742 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ELMIRA NY
— 607-743 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BINGHAMTON NY
— 607-744 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TC SYSTEMS, INC. - NY 7140 ENDICOTT NY
— 607-745 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CORTLAND NY
— 607-746 not yet reported which blocks → DELHI TEL. CO. 0088 DELHI NY
— 607-748 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ENDICOTT NY
— 607-749 0XXX6XXX8XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 CORTLAND NY
— 607-751 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 OWEGO NY
— 607-752 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 ENDICOTT NY
— 607-753 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 CORTLAND NY
— 607-754 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ENDICOTT NY
— 607-755 0XXX which blocks → LEVEL 3 TELECOM OF NEW YORK, LP - NY 8473 ENDICOTT NY
— 607-756 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 CORTLAND NY
— 607-757 4XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 ENDICOTT NY
— 607-758 0XXX2XXX7XXX which blocks → VERIZON NEW YORK, INC. 9104 CORTLAND NY
— 607-759 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BINGHAMTON NY
— 607-760 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BINGHAMTON NY
— 607-761 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BINGHAMTON NY
— 607-762 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-763 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-764 0XXX4XXX · 2 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 MOUNTUPTON NY
— 607-765 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BINGHAMTON NY
— 607-766 1XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-767 1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 ELMIRA NY
— 607-768 7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BINGHAMTON NY
— 607-769 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CORNING NY
— 607-770 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-771 5XXX which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-772 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-773 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-774 0XXX7XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-775 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-776 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BATH NY
— 607-777 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-778 0XXX9XXX which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.