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 607
VERIZON NEW YORK, INC. 111
TWC IP ENABLED SERVICES, LLC 51
CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 50
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 34
ONVOY, LLC- NY 33
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
— 607-770 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-771 5XXX which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-772 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-773 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-774 0XXX7XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-775 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-776 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BATH NY
— 607-777 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-778 0XXX9XXX which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-779 8XXX which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-783 1XXX which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 GILBERTSVL NY
— 607-785 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ENDICOTT NY
— 607-786 none assigned yet which blocks → VERIZON NEW YORK, INC. 9104 ENDICOTT NY
— 607-792 1XXX2XXX6XXX7XXX · 2 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 JASPER NY
— 607-793 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ITHACA NY
— 607-795 4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 ELMIRA NY
— 607-796 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ELMIRA NY
— 607-797 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-798 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-799 not yet reported which blocks → SPOK, INC. 6630 BINGHAMTON NY
— 607-800 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C GROTON NY
— 607-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 607-829 0XXX1XXX4XXX7XXX · 3 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 FRANKLIN NY
— 607-832 not yet reported which blocks → DELHI TEL. CO. 0088 DELHI NY
— 607-834 0XXX1XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ENDICOTT NY
— 607-835 0XXX2XXX3XXX4XXX5XXX7XXX · 6 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 VIRGIL NY
— 607-836 1XXX2XXX3XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 MCGRAW NY
— 607-838 0XXX1XXX2XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 MCLEAN NY
— 607-842 0XXX1XXX2XXX3XXX4XXX7XXX · 6 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 TRUXTON NY
— 607-843 4XXX which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 OXFORD NY
— 607-844 7XXX which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 DRYDEN NY
— 607-846 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J ELMIRA NY
— 607-847 4XXX5XXX · 2 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 NEW BERLIN NY
— 607-849 5XXX which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 MARATHON NY
— 607-859 7XXX which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 SNEWBERLIN NY
— 607-862 1XXX2XXX5XXX6XXX8XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 MAINE NY
— 607-863 none assigned yet which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 CINCINNTUS NY
— 607-865 0XXX which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 WALTON NY
— 607-868 not yet reported which blocks → EMPIRE TEL. CORP. 0093 PULTENEY NY
— 607-869 not yet reported which blocks → TRUMANSBURG TELEPHONE COMPANY, INC. 0131 OVID NY
— 607-871 6XXX7XXX8XXX which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 ALFRED NY
— 607-890 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BINGHAMTON NY
— 607-895 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 GUILFORD NY
— 607-897 not yet reported which blocks → SPOK, INC. 6630 GROTON NY
— 607-898 0XXX2XXX6XXX7XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 GROTON NY
— 607-900 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C MCGRAW NY
— 607-910 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 607-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 607-936 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 CORNING NY
— 607-937 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 CORNING 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.