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
— 845-739 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 PEEKSKILL NY
— 845-744 0XXX which blocks → FRONTIER COMMUNICATIONS OF NEW YORK, INC. 0100 PINE BUSH NY
— 845-747 0–9 XXXall 10 · 7 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K LIBERTY NY
— 845-752 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 RED HOOK NY
— 845-753 0XXX3XXX4XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 SLOATSBURG NY
— 845-754 1XXX2XXX3XXX4XXX5XXX6XXX · 2 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 PORTJERVIS NY
— 845-756 0XXX1XXX6XXX7XXX8XXX · 4 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 ELIZAVILLE NY
— 845-757 0XXX1XXX6XXX7XXX8XXX · 3 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 TIVOLI NY
— 845-758 not yet reported which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 RED HOOK NY
— 845-759 9XXX which blocks → VERIZON NEW YORK, INC. 9104 SLOATSBURG NY
— 845-761 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 PIERMONT NY
— 845-770 4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J NYACK NY
— 845-774 none assigned yet which blocks → FRONTIER COMMUNICATIONS OF NEW YORK, INC. 0100 MONROE NY
— 845-777 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC- NY 384C SUFFERN NY
— 845-778 not yet reported which blocks → FRONTIER COMMUNICATIONS OF NEW YORK, INC. 0100 WALDEN NY
— 845-781 none assigned yet which blocks → FRONTIER COMMUNICATIONS OF NEW YORK, INC. 0100 MONROE NY
— 845-782 not yet reported which blocks → FRONTIER COMMUNICATIONS OF NEW YORK, INC. 0100 MONROE NY
— 845-783 not yet reported which blocks → FRONTIER COMMUNICATIONS OF NEW YORK, INC. 0100 MONROE NY
— 845-786 9XXX which blocks → VERIZON NEW YORK, INC. 9104 HAVERSTRAW NY
— 845-788 0XXX2XXX5XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 PEEKSKILL NY
— 845-790 not yet reported which blocks → PAETEC ITEL, LLC 829J POUGHKEPSI NY
— 845-791 0XXX3XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 MONTICELLO NY
— 845-794 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 MONTICELLO NY
— 845-795 0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → VERIZON NEW YORK, INC. 9104 MILTON NY
— 845-796 0XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 MONTICELLO NY
— 845-800 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN NY
— 845-802 0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J KINGSTON NY
— 845-807 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MONTICELLO NY
— 845-808 0XXX1XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 BREWSTER NY
— 845-809 0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 COLDSPRING NY
— 845-810 not yet reported which blocks → PAETEC ITEL, LLC 829J WOODSTOCK NY
— 845-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 845-813 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → HD CARRIER LLC 321J CLINTONDL NY
— 845-815 0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H LKHUNTIGTN NY
— 845-818 not yet reported which blocks → ONVOY, LLC- NY 384C NYACK NY
— 845-823 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → TC SYSTEMS, INC. - NY 7140 LAKELAND NY
— 845-831 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BEACON NY
— 845-832 1XXX2XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 WINGDALE NY
— 845-833 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J BLOOMINGBG NY
— 845-838 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BEACON NY
— 845-839 0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 HIGHLD FLS NY
— 845-840 0XXX1XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → ONVOY, LLC- NY 384C GREENWD LK NY
— 845-841 0XXX4XXX5XXX7XXX9XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H MAYBROOK NY
— 845-842 0–9 XXXall 10 · 8 holders which blocks → ONVOY, LLC- NY 384C CARMEL NY
— 845-849 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K POUGHKEPSI NY
— 845-853 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J KINGSTON NY
— 845-855 6XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 PAWLING NY
— 845-856 not yet reported which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 PORTJERVIS NY
— 845-858 not yet reported which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 PORTJERVIS NY
— 845-859 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 HIGHLD FLS 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.