NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 939
METROPCS, INC. 3
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
2026-09-15 939-396-1XXX 1000–1999Assigned METROPCS, INC. 5562 CAROLINA PR
2026-09-15 939-693-0XXX 0000–0999Assigned METROPCS, INC. 5562 ARROYO PR
2026-09-15 939-998-1XXX 1000–1999Assigned METROPCS, INC. 5562 RINCON PR
2025-12-04 939-354-1XXX 1000–1999Assigned METROPCS, INC. 5562 TRUJILLOAL PR
2025-10-22 939-420-0XXX 0000–0999Assigned METROPCS, INC. 5562 VEGA ALTA PR
2025-10-22 939-432-9XXX 9000–9999Assigned METROPCS, INC. 5562 ISABELA PR
2025-07-02 939-733-1XXX 1000–1999Assigned METROPCS, INC. 5562 NARANJITO PR
2025-06-03 939-473-5XXX 5000–5999Assigned METROPCS, INC. 5562 VEGA ALTA PR
2025-04-14 939-998-9XXX 9000–9999Assigned METROPCS, INC. 5562 RINCON PR
2024-05-21 939-396-9XXX 9000–9999Assigned METROPCS, INC. 5562 CAROLINA PR
2024-05-21 939-693-1XXX 1000–1999Assigned METROPCS, INC. 5562 ARROYO PR
2022-05-19 939-371-0XXX 0000–0999Assigned METROPCS, INC. 5562 CAROLINA PR
2022-05-18 939-316-2XXX 2000–2999Assigned METROPCS, INC. 5562 CAYEY PR
2022-05-18 939-324-2XXX 2000–2999Assigned METROPCS, INC. 5562 NARANJITO PR
2022-05-18 939-385-0XXX 0000–0999Assigned METROPCS, INC. 5562 TRUJILLOAL PR
2022-05-18 939-609-5XXX 5000–5999Assigned METROPCS, INC. 5562 ISABELA PR
2022-05-18 939-699-4XXX 4000–4999Assigned METROPCS, INC. 5562 RINCON PR
2022-05-18 939-915-5XXX 5000–5999Assigned METROPCS, INC. 5562 VEGA ALTA PR
2019-04-19 939-577-0XXX 0000–0999Assigned METROPCS, INC. 5562 BAYAMONNOR PR
2018-11-21 939-237-1XXX 1000–1999Assigned METROPCS, INC. 5562 BAYAMONNOR PR
2018-07-20 939-577-1XXX 1000–1999Assigned METROPCS, INC. 5562 BAYAMONNOR PR
2018-07-03 939-638-3XXX 3000–3999Assigned METROPCS, INC. 5562 BAYAMONSUR PR
2018-06-15 939-638-0XXX 0000–0999Assigned METROPCS, INC. 5562 BAYAMONSUR PR
2018-06-15 939-638-1XXX 1000–1999Assigned METROPCS, INC. 5562 BAYAMONSUR PR
2018-06-12 939-355-3XXX 3000–3999Assigned METROPCS, INC. 5562 BAYAMONNOR PR
2018-05-30 939-355-2XXX 2000–2999Assigned METROPCS, INC. 5562 BAYAMONNOR PR
2017-10-18 939-638-9XXX 9000–9999Assigned METROPCS, INC. 5562 BAYAMONSUR PR
2015-06-23 939-865-2XXX 2000–2999Assigned METROPCS, INC. 5562 MAYAGUEZ PR
2015-03-26 939-319-3XXX 3000–3999Assigned METROPCS, INC. 5562 AGUADILLA PR
2015-03-26 939-319-4XXX 4000–4999Assigned METROPCS, INC. 5562 AGUADILLA PR
2015-03-13 939-492-0XXX 0000–0999Assigned METROPCS, INC. 5562 RIO GRANDE PR
2015-03-06 939-335-4XXX 4000–4999Assigned METROPCS, INC. 5562 ARROYO PR
2015-02-04 939-459-8XXX 8000–8999Assigned METROPCS, INC. 5562 MANATI PR
2014-12-01 939-500-4XXX 4000–4999Assigned METROPCS, INC. 5562 PONCE PR
2014-12-01 939-500-5XXX 5000–5999Assigned METROPCS, INC. 5562 PONCE PR
2014-12-01 939-500-6XXX 6000–6999Assigned METROPCS, INC. 5562 PONCE PR
2014-11-12 939-239-4XXX 4000–4999Assigned METROPCS, INC. 5562 CAGUAS PR

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.