NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 859
METROPCS, INC. 99
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
2023-09-11 859-438-3XXX 3000–3999Assigned METROPCS, INC. 5562 COVINGTON KY
2023-03-16 859-438-4XXX 4000–4999Assigned METROPCS, INC. 5562 COVINGTON KY
2022-10-21 859-522-3XXX 3000–3999Assigned METROPCS, INC. 5562 PARIS KY
2022-06-29 859-390-0XXX 0000–0999Assigned METROPCS, INC. 5562 MTSTERLING KY
2021-12-20 859-399-2XXX 2000–2999Assigned METROPCS, INC. 5562 LEXINGTON KY
2021-09-28 859-337-7XXX 7000–7999Assigned METROPCS, INC. 5562 WINCHESTER KY
2021-06-22 859-943-4XXX 4000–4999Assigned METROPCS, INC. 5562 CYNTHIANA KY
2021-04-15 859-440-0XXX 0000–0999Assigned METROPCS, INC. 5562 LEXINGTON KY
2021-04-15 859-440-5XXX 5000–5999Assigned METROPCS, INC. 5562 LEXINGTON KY
2020-05-13 859-999-2XXX 2000–2999Assigned METROPCS, INC. 5562 COVINGTON KY
2020-05-13 859-999-3XXX 3000–3999Assigned METROPCS, INC. 5562 COVINGTON KY
2018-12-03 859-788-8XXX 8000–8999Assigned METROPCS, INC. 5562 LEXINGTON KY
2018-09-19 859-999-4XXX 4000–4999Assigned METROPCS, INC. 5562 COVINGTON KY
2018-09-19 859-999-5XXX 5000–5999Assigned METROPCS, INC. 5562 COVINGTON KY
2018-04-25 859-522-5XXX 5000–5999Assigned METROPCS, INC. 5562 PARIS KY
2018-04-25 859-697-7XXX 7000–7999Assigned METROPCS, INC. 5562 MTSTERLING KY
2018-03-16 859-777-8XXX 8000–8999Assigned METROPCS, INC. 5562 COVINGTON KY
2017-09-28 859-551-5XXX 5000–5999Assigned METROPCS, INC. 5562 LEXINGTON KY
2017-09-28 859-551-6XXX 6000–6999Assigned METROPCS, INC. 5562 LEXINGTON KY
2017-09-28 859-551-7XXX 7000–7999Assigned METROPCS, INC. 5562 LEXINGTON KY
2017-08-15 859-267-9XXX 9000–9999Assigned METROPCS, INC. 5562 RICHMOND KY
2017-08-14 859-755-5XXX 5000–5999Assigned METROPCS, INC. 5562 DANVILLE KY
2017-08-14 859-755-6XXX 6000–6999Assigned METROPCS, INC. 5562 DANVILLE KY
2017-07-07 859-777-5XXX 5000–5999Assigned METROPCS, INC. 5562 COVINGTON KY
2017-07-07 859-777-6XXX 6000–6999Assigned METROPCS, INC. 5562 COVINGTON KY
2017-03-03 859-320-8XXX 8000–8999Assigned METROPCS, INC. 5562 COVINGTON KY
2017-02-03 859-310-8XXX 8000–8999Assigned METROPCS, INC. 5562 LEXINGTON KY
2017-01-23 859-320-2XXX 2000–2999Assigned METROPCS, INC. 5562 COVINGTON KY
2017-01-19 859-310-0XXX 0000–0999Assigned METROPCS, INC. 5562 LEXINGTON KY
2017-01-19 859-310-9XXX 9000–9999Assigned METROPCS, INC. 5562 LEXINGTON KY
2016-12-28 859-202-9XXX 9000–9999Assigned METROPCS, INC. 5562 LEXINGTON KY
2016-05-13 859-888-4XXX 4000–4999Assigned METROPCS, INC. 5562 COVINGTON KY
2016-05-13 859-888-5XXX 5000–5999Assigned METROPCS, INC. 5562 COVINGTON KY
2016-05-13 859-888-6XXX 6000–6999Assigned METROPCS, INC. 5562 COVINGTON KY
2016-04-14 859-202-2XXX 2000–2999Assigned METROPCS, INC. 5562 LEXINGTON KY
2016-04-14 859-202-4XXX 4000–4999Assigned METROPCS, INC. 5562 LEXINGTON KY
2016-04-14 859-202-5XXX 5000–5999Assigned METROPCS, INC. 5562 LEXINGTON KY
2016-04-14 859-202-6XXX 6000–6999Assigned METROPCS, INC. 5562 LEXINGTON KY
2016-04-14 859-202-7XXX 7000–7999Assigned METROPCS, INC. 5562 LEXINGTON KY
2016-04-14 859-202-8XXX 8000–8999Assigned METROPCS, INC. 5562 LEXINGTON KY
2015-01-28 859-479-4XXX 4000–4999Assigned METROPCS, INC. 5562 COVINGTON KY
2015-01-28 859-479-5XXX 5000–5999Assigned METROPCS, INC. 5562 COVINGTON KY
2014-07-14 859-206-6XXX 6000–6999Assigned METROPCS, INC. 5562 COVINGTON KY
2014-07-14 859-206-7XXX 7000–7999Assigned METROPCS, INC. 5562 COVINGTON KY
2014-07-14 859-206-8XXX 8000–8999Assigned METROPCS, INC. 5562 COVINGTON KY
2013-10-21 859-878-3XXX 3000–3999Assigned METROPCS, INC. 5562 COVINGTON KY
2013-10-21 859-878-4XXX 4000–4999Assigned METROPCS, INC. 5562 COVINGTON KY
2012-03-14 859-303-1XXX 1000–1999Assigned METROPCS, INC. 5562 LEXINGTON KY
2012-03-07 859-329-5XXX 5000–5999Assigned METROPCS, INC. 5562 DANVILLE KY
2012-02-22 859-612-3XXX 3000–3999Assigned METROPCS, INC. 5562 HARRODSBG KY

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.