NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 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 810
NEW CINGULAR WIRELESS PCS, LLC - IL 13
EXIANT COMMUNICATIONS LLC 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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2014-03-05 810-270-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NORTH BRCH MI
2014-03-05 810-374-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OTISVILLE MI
2014-03-05 810-881-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PECK MI
2014-03-04 810-325-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GOODELLS MI
2014-03-04 810-326-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ST CLAIR MI
2014-03-04 810-327-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JEDDO MI
2014-03-04 810-373-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FENTON MI
2014-03-04 810-462-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YALE MI
2014-03-04 810-525-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EMMETT MI
2014-03-04 810-535-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MEMPHIS MI
2014-03-04 810-641-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SNOVER MI
2014-03-04 810-662-6XXX 6000–6999Assigned METROPCS, INC. 5562 PORT HURON MI
2014-03-04 810-676-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARINECITY MI
2014-03-04 810-696-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEXINGTON MI
2014-03-04 810-867-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FLUSHING MI
2014-03-04 810-891-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SANDUSKY MI
2014-03-04 810-957-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LINDEN MI
2014-03-04 810-969-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAPEER MI
2014-02-27 810-328-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ST CLAIR MI
2014-02-27 810-534-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BRIGHTON MI
2014-02-25 810-259-0XXX 0000–0999Assigned METROPCS, INC. 5562 FLINT MI
2014-02-25 810-259-1XXX 1000–1999Assigned METROPCS, INC. 5562 FLINT MI
2014-02-24 810-209-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BYRON MI
2014-02-24 810-366-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DECKERVL MI
2014-02-24 810-368-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLIMTMORRS MI
2014-02-24 810-375-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DRYDEN MI
2014-02-24 810-475-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BROWN CITY MI
2014-02-24 810-544-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CARSONVL MI
2014-02-24 810-546-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CROSWELL MI
2014-02-24 810-652-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DAVISON MI
2014-02-24 810-674-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J APPLEGATE MI
2014-02-24 810-798-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ALMONT MI
2014-02-24 810-842-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J IMLAY CITY MI
2014-02-20 810-222-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRIGHTON MI
2014-02-20 810-734-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ALGONAC MI
2014-01-28 810-892-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MARINECITY MI
2014-01-16 810-339-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J FLINT MI
2014-01-14 810-746-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J HARTLAND MI
2014-01-06 810-344-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDBLANC MI
2014-01-06 810-495-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDBLANC MI
2014-01-06 810-603-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDBLANC MI
2013-12-30 810-522-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BRIGHTON MI
2013-12-19 810-216-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PORT HURON MI
2013-11-27 810-368-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CLIMTMORRS MI
2013-10-17 810-462-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J YALE MI
2013-10-17 810-535-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J MEMPHIS MI
2013-10-17 810-751-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J CAPAC MI
2013-10-15 810-969-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LAPEER MI
2013-10-15 810-969-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LAPEER MI
2013-10-10 810-369-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GOODRICH MI

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.