NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 330
ONVOY, LLC - OH 2
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2014-05-06 330-396-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MONTROSE OH
2014-05-06 330-396-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MONTROSE OH
2014-05-02 330-236-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MASSILLON OH
2014-05-02 330-302-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 LODI OH
2014-05-02 330-341-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HANOVERTON OH
2014-05-02 330-419-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHARON CTR OH
2014-05-02 330-449-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BERLIN OH
2014-05-02 330-476-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CARROLLTON OH
2014-05-02 330-525-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NOGEORGETN OH
2014-05-02 330-576-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONTROSE OH
2014-05-02 330-593-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KENT OH
2014-05-02 330-624-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BURBANK OH
2014-05-02 330-625-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOMERVILLE OH
2014-05-02 330-632-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EROCHESTER OH
2014-05-02 330-681-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DELLROY OH
2014-05-02 330-738-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MECHANCSTN OH
2014-05-02 330-739-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HARLEM SPG OH
2014-05-02 330-741-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRUNSWICK OH
2014-05-02 330-756-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BEACH CITY OH
2014-05-02 330-767-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BREWSTER OH
2014-05-02 330-854-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CANALFULTN OH
2014-05-02 330-859-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MINERAL CY OH
2014-05-02 330-862-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PARIS OH
2014-05-02 330-913-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ALLIANCE OH
2014-05-02 330-947-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ATWATER OH
2014-04-25 330-624-5XXX 5000–5999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - OH 024E BURBANK OH
2014-04-25 330-789-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SHREVE OH
2014-04-16 330-557-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAKEMILTON OH
2014-04-16 330-750-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2014-04-09 330-278-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C HINCKLEY OH
2014-04-09 330-295-3XXX 3000–3999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F MANCHESTR OH
2014-04-09 330-486-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TWINSBURG OH
2014-04-04 330-349-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F NILES OH
2014-04-04 330-362-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F WELLSVILLE OH
2014-04-04 330-597-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ATWATER OH
2014-04-01 330-870-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LISBON OH
2014-03-31 330-741-7XXX 7000–7999Assigned FRONTIER NORTH, INC. - OH 0615 BRUNSWICK OH
2014-03-21 330-590-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 SHARON CTR OH
2014-03-13 330-593-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K KENT OH
2014-03-07 330-368-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ELIVERPOOL OH
2014-03-07 330-368-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ELIVERPOOL OH
2014-03-07 330-539-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F GIRARD OH
2014-03-07 330-578-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ROOTSTOWN OH
2014-03-07 330-587-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HARTVILLE OH
2014-03-07 330-680-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ALLIANCE OH
2014-03-07 330-680-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ALLIANCE OH
2014-03-07 330-886-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F EPALESTINE OH
2014-03-07 330-969-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SHARON OH
2014-02-26 330-348-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C AURORA OH
2014-02-26 330-840-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C TWINSBURG OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.