NumberResearch Membership · Data 10/01/2026

Recent prefix assignments

374 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 10/01/2026

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 28
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
— 419-728 not yet reported which blocks → ONVOY, LLC - OH 464C BOWLNGGREN OH
— 419-729 not yet reported which blocks → OHIO BELL TEL CO 9321 TOLEDO OH
— 419-730 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-731 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - OH 464C UPSANDUSKY OH
— 419-732 5XXX which blocks → FRONTIER NORTH, INC. - OH 0615 PT CLINTON OH
— 419-734 8XXX which blocks → FRONTIER NORTH, INC. - OH 0615 PT CLINTON OH
— 419-735 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-736 not yet reported which blocks → NOVA TEL. CO. 0644 SULLIVAN OH
— 419-737 0XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → FRONTIER NORTH, INC. - OH 0615 PIONEER OH
— 419-738 not yet reported which blocks → TEL SERVICE CO. 0659 WAPAKONETA OH
— 419-739 not yet reported which blocks → TEL SERVICE CO. 0659 WAPAKONETA OH
— 419-740 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7158 MAUMEE OH
— 419-743 not yet reported which blocks → SPOK, INC. 6630 TOLEDO OH
— 419-744 0XXX9XXX · 2 holders which blocks → FRONTIER NORTH, INC. - OH 0615 NORWALK OH
— 419-745 0XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → WAVENATION, LLC 700J TOLEDO OH
— 419-746 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC. - OH 0615 KELLEYS IS OH
— 419-747 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MANSFIELD OH
— 419-748 not yet reported which blocks → MCCLURE TEL. CO. 0598 MCCLURE OH
— 419-749 0XXX3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → FRONTIER NORTH, INC. - OH 0615 CONVOY OH
— 419-751 0–9 XXXall 10 · 5 holders which blocks → VONAGE AMERICA LLC 197D MT GILEAD OH
— 419-752 9XXX which blocks → FRONTIER NORTH, INC. - OH 0615 GREENWICH OH
— 419-753 not yet reported which blocks → NEW KNOXVILLE TEL. CO. 0639 NEW KNOXVL OH
— 419-754 2XXX5XXX6XXX7XXX8XXX which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-755 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MANSFIELD OH
— 419-756 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MANSFIELD OH
— 419-757 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ALGER OH
— 419-758 not yet reported which blocks → FARMERS MUTUAL TEL. CO. 0612 OKOLONA OH
— 419-759 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 DUNKIRK OH
— 419-762 1XXX2XXX3XXX7XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 FLORIDA OH
— 419-763 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 7 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 COLDWATER OH
— 419-764 1XXX3XXX7XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TOLEDO OH
— 419-766 3XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPOLEON OH
— 419-768 5XXX6XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 CHESTERVL OH
— 419-769 8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEFIANCE OH
— 419-770 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEFIANCE OH
— 419-771 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 VAN WERT OH
— 419-772 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 ADA OH
— 419-773 2XXX3XXX4XXX6XXX7XXX8XXX · 6 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CRIDERSVL OH
— 419-774 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MANSFIELD OH
— 419-775 3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MANSFIELD OH
— 419-776 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-778 0XXX1XXX3XXX4XXX7XXX8XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ST MARYS OH
— 419-781 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-782 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 DEFIANCE OH
— 419-783 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 DEFIANCE OH
— 419-784 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 DEFIANCE OH
— 419-785 4XXX5XXX6XXX8XXX · 4 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 DEFIANCE OH
— 419-786 1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HICKSVILLE OH
— 419-787 0XXX2XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
— 419-788 2XXX4XXX6XXX7XXX8XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FINDLAY OH

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 10/01/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.