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 865
METROPCS, INC. 38
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
2021-03-24 865-378-9XXX 9000–9999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2021-03-24 865-632-5XXX 5000–5999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2020-12-11 865-298-7XXX 7000–7999Assigned METROPCS, INC. 5562 OAK RIDGE TN
2020-12-11 865-334-8XXX 8000–8999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2020-03-30 865-867-8XXX 8000–8999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2020-03-04 865-602-0XXX 0000–0999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2019-06-26 865-334-2XXX 2000–2999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2019-01-14 865-443-8XXX 8000–8999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2019-01-14 865-830-4XXX 4000–4999Assigned METROPCS, INC. 5562 SOLWAY TN
2018-03-20 865-443-7XXX 7000–7999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2018-01-16 865-443-4XXX 4000–4999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2017-12-20 865-443-3XXX 3000–3999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2017-09-21 865-443-2XXX 2000–2999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2017-07-21 865-338-8XXX 8000–8999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2017-06-02 865-338-6XXX 6000–6999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2017-01-03 865-443-0XXX 0000–0999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2017-01-03 865-443-1XXX 1000–1999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2016-11-07 865-443-5XXX 5000–5999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2016-11-07 865-443-6XXX 6000–6999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2016-10-17 865-830-2XXX 2000–2999Assigned METROPCS, INC. 5562 SOLWAY TN
2016-05-25 865-275-4XXX 4000–4999Assigned METROPCS, INC. 5562 OAK RIDGE TN
2016-05-25 865-444-9XXX 9000–9999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2016-05-25 865-999-6XXX 6000–6999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2016-02-18 865-275-6XXX 6000–6999Assigned METROPCS, INC. 5562 OAK RIDGE TN
2015-03-06 865-415-9XXX 9000–9999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2015-03-02 865-275-1XXX 1000–1999Assigned METROPCS, INC. 5562 OAK RIDGE TN
2015-03-02 865-888-1XXX 1000–1999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2015-03-02 865-888-2XXX 2000–2999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2015-03-02 865-888-3XXX 3000–3999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2015-02-27 865-896-8XXX 8000–8999Assigned METROPCS, INC. 5562 SOLWAY TN
2015-02-27 865-927-6XXX 6000–6999Assigned METROPCS, INC. 5562 SOLWAY TN
2011-12-14 865-227-4XXX 4000–4999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2011-12-14 865-227-5XXX 5000–5999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2011-06-30 865-200-6XXX 6000–6999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2011-06-30 865-200-7XXX 7000–7999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2011-05-06 865-200-1XXX 1000–1999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2011-05-06 865-200-2XXX 2000–2999Assigned METROPCS, INC. 5562 KNOXVILLE TN
2011-03-04 865-200-0XXX 0000–0999Assigned METROPCS, INC. 5562 KNOXVILLE TN

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.