NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

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

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
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 27
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 516-901 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
— 516-902 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
— 516-903 none assigned yet which blocks → METROPCS, INC. 5562 BRENTWOOD NY
— 516-906 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BRENTWOOD NY
— 516-908 not yet reported which blocks → ONVOY, LLC- NY 384C NASSAUZN08 NY
— 516-909 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 CENTRAISLP NY
— 516-910 not yet reported which blocks → AMERICAN NETWORK, INC. 8667 NASSAUZN05 NY
— 516-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 516-913 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
— 516-918 0XXX7XXX8XXX9XXX · 3 holders which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
— 516-921 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN07 NY
— 516-922 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN07 NY
— 516-924 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
— 516-926 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN01 NY
— 516-927 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 6 holders which blocks → AT&T - LOCAL 7421 FARMINGDL NY
— 516-931 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-932 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-933 5XXX which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-934 0XXX1XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-935 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-936 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 516-937 8XXX which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-938 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-939 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-941 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J NASSAUZN05 NY
— 516-942 1XXX which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-943 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → METROPCS, INC. 5562 NASSAUZN08 NY
— 516-944 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN01 NY
— 516-945 2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN04 NY
— 516-946 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
— 516-948 not yet reported which blocks → SPOK, INC. 6630 SELDEN NY
— 516-949 0XXX1XXX5XXX6XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NASSAUZN08 NY
— 516-950 not yet reported which blocks → NY
— 516-953 0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TC SYSTEMS, INC. - NY 7140 NASSAUZN04 NY
— 516-954 not yet reported which blocks → SPOK, INC. 6630 NASSAUZN05 NY
— 516-955 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 516-958 not yet reported which blocks → NY
— 516-959 not yet reported which blocks → NY
— 516-960 4XXX6XXX8XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN06 NY
— 516-962 1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 FARMINGDL NY
— 516-965 5XXX6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
— 516-967 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
— 516-971 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
— 516-972 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
— 516-976 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 516-977 not yet reported which blocks → PAETEC ITEL, LLC 829J FARMINGDL NY
— 516-978 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN07 NY
— 516-982 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
— 516-983 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 CENTRAISLP NY
— 516-984 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.