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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Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 419-789 3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 DEFIANCE OH
— 419-790 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CELINA OH
— 419-791 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-792 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 BLUFFTON OH
— 419-793 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-794 not yet reported which blocks → ONVOY, LLC - OH 464C MAUMEE OH
— 419-795 2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC. - OH 0615 MENDON OH
— 419-796 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 KALIDA OH
— 419-797 5XXX8XXX · 2 holders which blocks → FRONTIER NORTH, INC. - OH 0615 PT CLINTON OH
— 419-798 3XXX6XXX7XXX · 2 holders which blocks → FRONTIER NORTH, INC. - OH 0615 MARBLEHEAD OH
— 419-799 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BRYAN OH
— 419-802 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 FREMONT OH
— 419-803 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 SANDUSKY OH
— 419-805 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TIFFIN OH
— 419-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX OH
— 419-812 2XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIMA OH
— 419-815 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 SANDUSKY OH
— 419-816 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 FREMONT OH
— 419-817 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 FINDLAY OH
— 419-818 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-821 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-822 1XXX6XXX7XXX which blocks → WINDSTREAM OHIO, LLC 0665 DELTA OH
— 419-823 6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - OH 0615 HASKISTGNY OH
— 419-824 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 SYLVANIA OH
— 419-825 4XXX6XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 SWANTON OH
— 419-826 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 SWANTON OH
— 419-827 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRONTIER NORTH, INC. - OH 0615 LAKEVILLE OH
— 419-828 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-829 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 RCFLDCTBRY OH
— 419-831 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-832 9XXX which blocks → FRONTIER NORTH, INC. - OH 0615 GRAND RPDS OH
— 419-833 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 LUCKEY OH
— 419-834 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → METROPCS, INC. 5562 BUCYRUS OH
— 419-835 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 UPSANDUSKY OH
— 419-836 0XXX which blocks → FRONTIER NORTH, INC. - OH 0615 CURTICORGN OH
— 419-837 4XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 STONYRIDGE OH
— 419-838 1XXX3XXX8XXX9XXX · 2 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 MOLINE OH
— 419-840 not yet reported which blocks → OHIO BELL TEL CO 9321 XXXXXXXXXX OH
— 419-841 not yet reported which blocks → FRONTIER NORTH, INC. - OH 0615 SYLVANIA OH
— 419-842 4XXX which blocks → FRONTIER NORTH, INC. - OH 0615 SYLVANIA OH
— 419-843 0XXX which blocks → FRONTIER NORTH, INC. - OH 0615 SYLVANIA OH
— 419-844 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-845 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 CALEDONIA OH
— 419-846 2XXX5XXX7XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC. - OH 0615 CONGRESS OH
— 419-849 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST OHIO, INC. 0661 WOODVILLE OH
— 419-851 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → ONVOY, LLC - OH 464C TOLEDO OH
— 419-852 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CELINA OH
— 419-853 5XXX6XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - OH 0615 WEST SALEM OH
— 419-855 2XXX5XXX6XXX · 3 holders which blocks → FRONTIER NORTH, INC. - OH 0615 GENOA OH
— 419-858 not yet reported which blocks → ONVOY, LLC - OH 464C TOLEDO 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.