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 518
VERIZON NEW YORK, INC. 225
PAETEC ITEL, LLC 59
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 58
NEW CINGULAR WIRELESS PCS, LLC - DC 45
TC SYSTEMS, INC. - NY 35
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
— 518-762 not yet reported which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 JOHNSTOWN NY
— 518-765 0XXX1XXX6XXX7XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 VOORHEESVL NY
— 518-766 not yet reported which blocks → TACONIC TEL. CORP. 0084 NASSAU NY
— 518-767 1XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 SOBETHLEHM NY
— 518-768 0XXX1XXX3XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 CLARKSVL NY
— 518-770 0XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J AMSTERDAM NY
— 518-773 not yet reported which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 GLOVERSVL NY
— 518-774 0XXX1XXX2XXX3XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 GLOVERSVL NY
— 518-775 0XXX3XXX6XXX7XXX8XXX9XXX which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 GLOVERSVL NY
— 518-776 0–9 XXXall 10 · 7 holders which blocks → METROPCS, INC. 5562 ALBANY NY
— 518-777 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC- NY 384C SHARON SPG NY
— 518-778 0XXX1XXX4XXX8XXX · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K WEST CHAZY NY
— 518-780 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 518-781 2XXX6XXX7XXX9XXX · 4 holders which blocks → TACONIC TEL. CORP. 0084 CANAAN NY
— 518-782 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 COLONIE NY
— 518-783 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 COLONIE NY
— 518-784 not yet reported which blocks → BERKSHIRE TEL. CO. 0073 KINDERHOOK NY
— 518-785 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 COLONIE NY
— 518-786 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 COLONIE NY
— 518-789 7XXX which blocks → TACONIC TEL. CORP. 0084 MILLERTON NY
— 518-791 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 GLENSFALLS NY
— 518-792 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 GLENSFALLS NY
— 518-793 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 GLENSFALLS NY
— 518-794 2XXX3XXX · 2 holders which blocks → TACONIC TEL. CORP. 0084 W LEBANON NY
— 518-796 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 GLENSFALLS NY
— 518-797 1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 WESTERLO NY
— 518-798 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 GLENSFALLS NY
— 518-799 not yet reported which blocks → BERKSHIRE TEL. CO. 0073 KINDERHOOK NY
— 518-800 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC- NY 384C ARGYLE NY
— 518-801 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ALBANY NY
— 518-803 0XXX1XXX2XXX4XXX5XXX7XXX8XXX · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K CHESTERTN NY
— 518-807 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ALBANY NY
— 518-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 518-812 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → VERIZON NEW YORK, INC. 9104 GLENSFALLS NY
— 518-814 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 COLONIE NY
— 518-817 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → PRIMELINK, INC. - NY 0065 ALBANY NY
— 518-818 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC- NY 384C ALBANY NY
— 518-819 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 TELECOM OF NEW YORK, LP - NY 8473 CATSKILL NY
— 518-821 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUDSON NY
— 518-822 6XXX7XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 HUDSON NY
— 518-823 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 7 holders which blocks → TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 COBLESKILL NY
— 518-824 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J GLENSFALLS NY
— 518-825 6XXX7XXX8XXX which blocks → WESTELCOM NETWORK, INC. - NY 1227 PLATTSBG NY
— 518-826 0XXX4XXX · 2 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K BRAMANVL NY
— 518-827 not yet reported which blocks → MIDDLEBURGH TEL. CO. 0105 MIDDLEBG NY
— 518-828 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 HUDSON NY
— 518-829 2XXX3XXX4XXX6XXX · 4 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 TRIBESHILL NY
— 518-831 0XXX2XXX5XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J SCHENCTADY NY
— 518-832 0XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J GLENSFALLS NY
— 518-833 2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J TROY 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.