NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

1 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, last 30 days — NPA 567
8X8, INC. 1
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
2020-02-14 567-465 0XXX1XXX2XXX3XXX4XXX8XXX · 5 holders which blocks → FRACTEL, LLC 965H BLOOMVILLE OH
2020-02-14 567-529 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H EDGERTON OH
2020-02-14 567-833 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H SYLVANIA OH
2020-02-14 567-866 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H KELLEYS IS OH
2020-02-14 567-877 0–9 XXXall 10 · 8 holders which blocks → FRACTEL, LLC 965H HURON OH
2020-02-14 567-891 0XXX1XXX · 2 holders which blocks → FRACTEL, LLC 965H SWANTON OH
2020-02-14 567-895 0XXX2XXX3XXX5XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H SAVANNAH OH
2020-02-14 567-898 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H PERRYSBURG OH
2019-10-10 567-710 0–9 XXXall 10 · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H LIMA OH
2019-05-17 567-722 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2019-03-19 567-600 0–9 XXXall 10 · 4 holders which blocks → TERRA NOVA TELECOM INC. 145J TOLEDO OH
2019-01-25 567-816 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H LINDSEY OH
2019-01-25 567-899 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H ASHLAND OH
2019-01-25 567-900 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H TOLEDO OH
2018-10-10 567-861 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2017-11-01 567-800 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - OH 464C OTTAWA OH
2017-09-06 567-260 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F WHARTON OH
2017-08-10 567-271 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FINDLAY OH
2017-06-20 567-420 0–9 XXXall 10 · 5 holders which blocks → COMMIO, LLC 939H TOLEDO OH
2017-04-10 567-299 0XXX2XXX3XXX5XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7158 COLDWATER OH
2017-03-10 567-999 0–9 XXXall 10 · 5 holders which blocks → TELNYX LLC 073H NEW RIEGEL OH
2017-02-28 567-888 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C LIMA OH
2017-02-09 567-777 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2017-01-20 567-290 0–9 XXXall 10 · 6 holders which blocks → TELNYX LLC 073H TOLEDO OH
2016-10-10 567-381 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - OH 464C LEXINGTON OH
2016-07-15 567-757 2XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → WINDSTREAM OHIO, LLC 0665 NEAPOLIS OH
2016-06-08 567-409 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K BUCYRUS OH
2016-04-25 567-970 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
2016-04-07 567-339 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - OH 464C VENEDOCIA OH
2016-04-07 567-704 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - OH 464C LYKENS OH
2016-03-30 567-347 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - OH 464C CAIRO OH
2016-03-30 567-430 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - OH 464C BUTLER OH
2016-02-23 567-314 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 8 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K FREMONT OH
2016-01-25 567-789 not yet reported which blocks → WABASH MUTUAL TELEPHONE COMPANY - OH 669D ROCKFORD OH
2016-01-05 567-804 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TIFFIN OH
2015-12-17 567-333 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C MANSFIELD OH
2015-12-02 567-408 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SYLVANIA OH
2015-08-11 567-708 0–9 XXXall 10 · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK HARBOR OH
2015-06-26 567-294 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FINDLAY OH
2015-06-11 567-808 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 6 holders which blocks → WINDSTREAM OHIO, LLC 0665 PAULDING OH
2015-06-02 567-978 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F JOHNSVILLE OH
2015-05-21 567-979 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F CASTALIA OH
2015-05-18 567-907 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F CURTICORGN OH
2015-05-18 567-908 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F CHESTERVL OH
2015-04-09 567-434 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BETTSVILLE OH
2015-03-20 567-585 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2015-01-12 567-360 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEW BREMEN OH
2014-12-23 567-406 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C WHITEHOUSE OH
2014-10-23 567-806 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
2014-10-23 567-832 0XXX1XXX2XXX4XXX8XXX9XXX · 5 holders which blocks → MCCLURE COMMUNICATIONS CORPORATION - OH 921G GRAND RPDS OH

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.