NumberResearch Membership · Data 09/25/2026

Recent prefix assignments

337 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/25/2026

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 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 25
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 12
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
— 845-795 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
— 845-863 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NEWBURGH NY
— 845-865 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → ONVOY, LLC- NY 384C PLEASATVLY NY
— 845-867 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 POUGHKEPSI NY
— 845-868 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW YORK, INC. 9104 STANFORDVL NY
— 845-871 0XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 RHINEBECK NY
— 845-875 2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NYACK NY
— 845-876 not yet reported which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 RHINEBECK NY
— 845-877 0XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 DOVER PL NY
— 845-878 0XXX1XXX5XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 PATTERSON NY
— 845-883 0XXX2XXX3XXX4XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 CLINTONDL NY
— 845-884 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 KINGSTON NY
— 845-887 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW YORK, INC. 9104 CALLICOON NY
— 845-888 1XXX6XXX7XXX · 2 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 WURTSBORO NY
— 845-889 0XXX1XXX2XXX5XXX6XXX7XXX · 4 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 STAATSBURG NY
— 845-890 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 845-892 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 BEACON NY
— 845-893 none assigned yet which blocks → METROPCS, INC. 5562 NEW CITY NY
— 845-894 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 BEACON NY
— 845-895 none assigned yet which blocks → FRONTIER COMMUNICATIONS OF NEW YORK, INC. 0100 WALLKILL NY
— 845-896 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BEACON NY
— 845-897 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BEACON NY
— 845-899 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J HOPEWLLJCT NY
— 845-902 0XXX3XXX8XXX · 2 holders which blocks → FRONTIER COMMUNICATIONS OF AMERICA, INC. - NY 2475 POUGHKEPSI NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.