NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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 21
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
— 845-863 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
— 845-905 2XXX5XXX6XXX9XXX which blocks → VERIZON NEW YORK, INC. 9104 POUGHKEPSI NY
— 845-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 845-913 2XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J NEWBURGH NY
— 845-915 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 TUXEDO NY
— 845-918 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → VERIZON NEW YORK, INC. 9104 SUFFERN NY
— 845-920 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → VERIZON NEW YORK, INC. 9104 PEARLRIVER NY
— 845-926 0XXX1XXX2XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J NEWBURGH NY
— 845-928 not yet reported which blocks → FRONTIER COMMUNICATIONS OF NEW YORK, INC. 0100 HIGHLANDML NY
— 845-932 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 LKHUNTIGTN NY
— 845-938 0XXX1XXX9XXX which blocks → PAETEC ITEL, LLC 829J HIGHLD FLS NY
— 845-940 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 BREWSTER NY
— 845-942 6XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 HAVERSTRAW NY
— 845-943 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J KINGSTON NY
— 845-945 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC- NY 384C CARMEL NY
— 845-947 0XXX7XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 HAVERSTRAW NY
— 845-950 not yet reported which blocks → NY
— 845-955 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 845-956 0XXX3XXX6XXX7XXX8XXX · 4 holders which blocks → WARWICK VALLEY TELEPHONE COMPANY - NY 4140 MIDDLETOWN NY
— 845-958 not yet reported which blocks → NY
— 845-959 not yet reported which blocks → NY
— 845-976 not yet reported which blocks → MULTIPLE OCN LISTING MULT BREWSTER NY
— 845-977 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 HIGHLD FLS NY
— 845-985 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW YORK, INC. 9104 GRAHAMSVL NY
— 845-986 not yet reported which blocks → ALTEVA OF WARWICK LLC 0135 WARWICK NY
— 845-987 none assigned yet which blocks → ALTEVA OF WARWICK LLC 0135 WARWICK NY
— 845-988 none assigned yet which blocks → ALTEVA OF WARWICK LLC 0135 WARWICK NY
— 845-999 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C NEW CITY NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.