NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 845
VERIZON NEW YORK, INC. 159
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 73
ONVOY, LLC- NY 58
NEW CINGULAR WIRELESS PCS, LLC - DC 47
LEVEL 3 COMMUNICATIONS, LLC - NY 47
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
— 845-623 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NANUET NY
— 845-624 6XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NANUET NY
— 845-625 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J POUGHKEPSI NY
— 845-626 1XXX6XXX8XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 KERHONKSON NY
— 845-627 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NANUET NY
— 845-628 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 MAHOPAC NY
— 845-629 none assigned yet which blocks → METROPCS, INC. 5562 NEWBURGH NY
— 845-633 5XXX7XXX8XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NEW PALTZ NY
— 845-634 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NEW CITY NY
— 845-635 0XXX6XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 PLEASATVLY NY
— 845-638 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NEW CITY NY
— 845-639 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NEW CITY NY
— 845-647 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ELLENVILLE NY
— 845-651 not yet reported which blocks → ALTEVA OF WARWICK LLC 0135 FLORIDA NY
— 845-654 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MAHOPAC NY
— 845-657 0XXX1XXX3XXX4XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 SHOKAN NY
— 845-658 0XXX1XXX2XXX4XXX5XXX6XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 ROSENDALE NY
— 845-669 0XXX1XXX2XXX4XXX6XXX7XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NORTHSALEM NY
— 845-673 0–9 XXXall 10 · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K SCOTCHTOWN NY
— 845-675 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TC SYSTEMS, INC. - NY 7140 NYACK NY
— 845-676 1XXX6XXX7XXX8XXX · 4 holders which blocks → MARGARETVILLE TEL. CO., INC. 0104 ANDES NY
— 845-677 4XXX which blocks → VERIZON NEW YORK, INC. 9104 MILLBROOK NY
— 845-678 3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 SPRING VLY NY
— 845-679 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WOODSTOCK NY
— 845-680 6XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 PIERMONT NY
— 845-687 1XXX3XXX6XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 HIGH FALLS NY
— 845-688 0XXX1XXX3XXX4XXX6XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 PHOENICIA NY
— 845-691 0XXX1XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 HIGHLAND NY
— 845-692 not yet reported which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 SCOTCHTOWN NY
— 845-693 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K FALLSBURG NY
— 845-695 not yet reported which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 SCOTCHTOWN NY
— 845-700 not yet reported which blocks → NY
— 845-703 0XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → WARWICK VALLEY TELEPHONE COMPANY - NY 4140 SCOTCHTOWN NY
— 845-704 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 CARMEL NY
— 845-708 5XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NEW CITY NY
— 845-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 845-714 0XXX1XXX2XXX3XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC- NY 384C POUGHKEPSI NY
— 845-723 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K PLEASATVLY NY
— 845-724 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → VERIZON NEW YORK, INC. 9104 NORTHCLOVE NY
— 845-725 not yet reported which blocks → PAETEC ITEL, LLC 829J NEWBURGH NY
— 845-726 1XXX2XXX6XXX7XXX8XXX · 4 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 UNIONVILLE NY
— 845-727 3XXX5XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NYACK NY
— 845-730 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C FALLSBURG NY
— 845-731 1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 PEARLRIVER NY
— 845-732 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 PEARLRIVER NY
— 845-733 8XXX which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 BLOOMINGBG NY
— 845-734 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 PEEKSKILL NY
— 845-735 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 PEARLRIVER NY
— 845-736 0–9 XXXall 10 · 4 holders which blocks → CSC VOICE, LLC 612K PEEKSKILL NY
— 845-737 2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 PEEKSKILL NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.