NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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, all time — NPA 248
TELEPORT COMMUNICATIONS AMERICA, LLC - MI 60
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
2023-08-09 248-984-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E FARMINGTON MI
2023-08-09 248-984-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E FARMINGTON MI
2023-08-09 248-984-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E FARMINGTON MI
2023-08-09 248-984-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E FARMINGTON MI
2023-08-09 248-984-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E FARMINGTON MI
2021-02-11 248-274-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E OXFORD MI
2020-04-15 248-582-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2020-04-15 248-686-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E BIRMINGHAM MI
2019-06-03 248-940-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E BIRMINGHAM MI
2019-04-11 248-955-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-01-19 248-395-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI
2018-01-09 248-970-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E W BLOOMFLD MI
2017-08-04 248-226-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI
2017-05-30 248-951-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2017-04-25 248-970-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E W BLOOMFLD MI
2017-01-17 248-665-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI
2016-10-06 248-951-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2016-10-06 248-951-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2015-12-04 248-621-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI
2015-11-06 248-590-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E BIRMINGHAM MI
2015-11-06 248-590-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E BIRMINGHAM MI
2015-11-02 248-839-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E BIRMINGHAM MI
2015-10-21 248-965-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2015-09-28 248-965-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2015-04-27 248-727-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI
2015-04-15 248-863-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E WALLEDLAKE MI
2015-03-31 248-839-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E BIRMINGHAM MI
2015-03-18 248-775-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E MILFDWH LK MI
2015-03-18 248-775-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E MILFDWH LK MI
2013-10-04 248-294-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-10-04 248-294-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-10-04 248-309-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-10-04 248-309-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-08-26 248-221-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-08-13 248-221-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-07-31 248-221-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-07-17 248-392-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-07-16 248-268-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2013-05-30 248-296-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-05-30 248-296-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-05-10 248-639-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2012-08-24 248-278-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTH LYON MI
2011-03-22 248-758-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2010-01-07 248-494-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2009-10-23 248-699-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E FARMINGTON MI
2009-05-13 248-699-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E FARMINGTON MI
2008-08-08 248-599-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E DRAYTON PL MI
2008-03-12 248-327-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI
2008-01-24 248-796-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI
2006-01-06 248-796-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.