NumberResearch Membership · Data 09/22/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026

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 304
T-MOBILE USA, INC. 1
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
2026-09-15 304-512-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 RAVENSWOOD WV
2025-03-20 304-658-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ANSTED WV
2024-10-22 304-585-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 KIMBALL WV
2024-09-17 304-310-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHAPMANVL WV
2024-07-18 304-306-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN7 WV
2024-07-10 304-761-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 RIPLEY WV
2024-03-07 304-585-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 KIMBALL WV
2024-02-16 304-961-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PRINCETON WV
2023-09-27 304-880-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SUMMERSVL WV
2023-09-27 304-880-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SUMMERSVL WV
2023-06-14 304-246-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SUMMERSVL WV
2023-05-10 304-431-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PRINCETON WV
2021-10-15 304-246-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SUMMERSVL WV
2021-10-15 304-246-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SUMMERSVL WV
2021-10-15 304-246-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SUMMERSVL WV
2021-03-01 304-880-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SUMMERSVL WV
2018-12-10 304-587-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLAY WV
2018-12-07 304-310-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHAPMANVL WV
2018-07-26 304-585-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 KIMBALL WV
2018-07-06 304-732-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PINEVILLE WV
2018-07-06 304-753-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PETERSTOWN WV
2018-06-13 304-955-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN2 WV
2018-06-13 304-955-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN2 WV
2018-06-13 304-955-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN2 WV
2018-06-11 304-220-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN4 WV
2018-06-11 304-453-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN4 WV
2018-06-11 304-453-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN4 WV
2018-06-11 304-915-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN7 WV
2018-06-11 304-915-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN7 WV
2018-06-11 304-915-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN7 WV
2018-06-11 304-945-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN5 WV
2018-06-11 304-945-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN5 WV
2018-06-11 304-965-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN3 WV
2018-06-11 304-988-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN2 WV
2018-04-20 304-384-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ATHENS WV
2018-04-20 304-384-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ATHENS WV
2018-04-20 304-384-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ATHENS WV
2018-04-20 304-409-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BLUEWELL WV
2018-04-20 304-409-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BLUEWELL WV
2018-04-20 304-409-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BLUEWELL WV
2018-04-20 304-716-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PRINCETON WV
2018-04-20 304-716-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PRINCETON WV
2018-04-20 304-716-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PRINCETON WV
2016-01-19 304-200-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WILLIAMSTN WV
2011-11-21 304-362-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BECKLEY WV
2011-11-21 304-362-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BECKLEY WV
2011-10-10 304-747-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN1 WV
2011-10-05 304-953-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LOGAN WV
2011-06-14 304-991-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PRKRSBGZN1 WV
2011-04-18 304-809-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BLUEFIELD WV

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.