NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 256
METROPCS, INC. 116
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
2023-02-09 256-873-1XXX 1000–1999Assigned METROPCS, INC. 5562 ATTALLA AL
2022-02-08 256-409-6XXX 6000–6999Assigned METROPCS, INC. 5562 ALEXANDRCY AL
2021-12-22 256-257-6XXX 6000–6999Assigned METROPCS, INC. 5562 FALKVILLE AL
2021-12-22 256-592-1XXX 1000–1999Assigned METROPCS, INC. 5562 TALLADEGA AL
2021-10-13 256-940-2XXX 2000–2999Assigned METROPCS, INC. 5562 JACKSONVL AL
2021-03-16 256-944-1XXX 1000–1999Assigned METROPCS, INC. 5562 JACKSONVL AL
2021-01-13 256-388-5XXX 5000–5999Assigned METROPCS, INC. 5562 ALBERTVL AL
2020-12-03 256-819-7XXX 7000–7999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2020-12-03 256-819-8XXX 8000–8999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2020-08-10 256-844-5XXX 5000–5999Assigned METROPCS, INC. 5562 FORT PAYNE AL
2020-05-19 256-230-8XXX 8000–8999Assigned METROPCS, INC. 5562 ATHENS AL
2020-05-19 256-795-5XXX 5000–5999Assigned METROPCS, INC. 5562 ATHENS AL
2020-02-04 256-427-0XXX 0000–0999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2020-02-04 256-830-7XXX 7000–7999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2020-02-04 256-944-2XXX 2000–2999Assigned METROPCS, INC. 5562 JACKSONVL AL
2020-02-04 256-944-5XXX 5000–5999Assigned METROPCS, INC. 5562 JACKSONVL AL
2020-01-09 256-387-5XXX 5000–5999Assigned METROPCS, INC. 5562 HARTSELLE AL
2020-01-09 256-633-3XXX 3000–3999Assigned METROPCS, INC. 5562 FLORENCE AL
2020-01-09 256-718-7XXX 7000–7999Assigned METROPCS, INC. 5562 FLORENCE AL
2018-12-27 256-614-1XXX 1000–1999Assigned METROPCS, INC. 5562 ATHENS AL
2018-12-27 256-729-5XXX 5000–5999Assigned METROPCS, INC. 5562 ATHENS AL
2018-07-09 256-512-7XXX 7000–7999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2018-07-09 256-551-8XXX 8000–8999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2018-05-07 256-857-8XXX 8000–8999Assigned METROPCS, INC. 5562 ALBERTVL AL
2018-04-17 256-800-7XXX 7000–7999Assigned METROPCS, INC. 5562 ATHENS AL
2018-03-13 256-583-7XXX 7000–7999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2018-03-13 256-836-6XXX 6000–6999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2018-03-06 256-230-4XXX 4000–4999Assigned METROPCS, INC. 5562 ATHENS AL
2017-08-22 256-913-3XXX 3000–3999Assigned METROPCS, INC. 5562 JACKSONVL AL
2017-07-05 256-583-8XXX 8000–8999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2017-07-05 256-836-8XXX 8000–8999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2017-02-01 256-660-8XXX 8000–8999Assigned METROPCS, INC. 5562 ALBERTVL AL
2017-02-01 256-860-2XXX 2000–2999Assigned METROPCS, INC. 5562 GUNTERSVL AL
2016-12-06 256-261-0XXX 0000–0999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2016-12-06 256-429-0XXX 0000–0999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2016-12-06 256-885-5XXX 5000–5999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2016-11-23 256-633-8XXX 8000–8999Assigned METROPCS, INC. 5562 FLORENCE AL
2016-10-04 256-913-9XXX 9000–9999Assigned METROPCS, INC. 5562 JACKSONVL AL
2016-06-21 256-716-7XXX 7000–7999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2016-06-21 256-755-5XXX 5000–5999Assigned METROPCS, INC. 5562 HUNTSVILLE AL
2016-04-06 256-257-2XXX 2000–2999Assigned METROPCS, INC. 5562 FALKVILLE AL
2016-04-06 256-364-3XXX 3000–3999Assigned METROPCS, INC. 5562 FORT PAYNE AL
2016-04-06 256-516-5XXX 5000–5999Assigned METROPCS, INC. 5562 FORT PAYNE AL
2016-04-06 256-751-7XXX 7000–7999Assigned METROPCS, INC. 5562 HARTSELLE AL
2016-04-04 256-206-7XXX 7000–7999Assigned METROPCS, INC. 5562 ATHENS AL
2016-04-04 256-216-7XXX 7000–7999Assigned METROPCS, INC. 5562 ATHENS AL
2016-04-04 256-255-6XXX 6000–6999Assigned METROPCS, INC. 5562 CULLMAN AL
2016-04-04 256-297-5XXX 5000–5999Assigned METROPCS, INC. 5562 CULLMAN AL
2016-04-04 256-391-0XXX 0000–0999Assigned METROPCS, INC. 5562 SYLACAUGA AL
2016-04-04 256-409-0XXX 0000–0999Assigned METROPCS, INC. 5562 ALEXANDRCY AL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.