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 608
T-MOBILE USA, INC. 221
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
2026-08-12 608-972-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BOSCOBEL WI
2026-08-07 608-937-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DODGEVILLE WI
2026-08-07 608-937-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DODGEVILLE WI
2026-08-05 608-953-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LANCASTER WI
2026-08-04 608-331-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PLATTEVL WI
2026-08-04 608-517-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FENNIMORE WI
2026-08-04 608-517-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 FENNIMORE WI
2026-07-24 608-980-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2026-07-22 608-953-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LANCASTER WI
2026-07-07 608-330-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PLATTEVL WI
2026-07-07 608-954-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MUSCODA WI
2026-06-23 608-917-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WISCONDLLS WI
2026-05-20 608-954-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MUSCODA WI
2026-05-08 608-553-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DODGEVILLE WI
2026-05-08 608-929-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 HIGHLAND WI
2026-04-27 608-517-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FENNIMORE WI
2026-04-14 608-929-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HIGHLAND WI
2025-12-09 608-920-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 STOUGHTON WI
2025-10-29 608-980-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-10-29 608-980-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-10-29 608-980-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-05-23 608-980-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-05-23 608-980-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-05-23 608-980-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-03-18 608-971-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELROY WI
2025-03-18 608-972-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BOSCOBEL WI
2025-02-24 608-693-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WESTBY WI
2025-01-27 608-508-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WESTFIELD WI
2025-01-27 608-545-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 YUBA WI
2025-01-27 608-760-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TREMPEALEU WI
2025-01-27 608-891-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VIROQUA WI
2025-01-23 608-330-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PLATTEVL WI
2025-01-23 608-380-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PRARIDCHIN WI
2025-01-23 608-505-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 POYNETTE WI
2025-01-23 608-521-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 READSTOWN WI
2025-01-23 608-696-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SPARTA WI
2025-01-23 608-803-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SPG GREEN WI
2025-01-23 608-805-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-01-23 608-805-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-01-23 608-805-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-01-23 608-918-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SAUK CITY WI
2025-01-23 608-956-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 RICHLD CTR WI
2025-01-22 608-293-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MONROE WI
2025-01-22 608-353-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MELROSE WI
2025-01-22 608-379-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MOUNT HOPE WI
2025-01-22 608-450-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OXFORD WI
2025-01-22 608-639-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LA FARGE WI
2025-01-22 608-656-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MAUSTON WI
2025-01-22 608-703-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NEW GLARUS WI
2025-01-22 608-953-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LANCASTER WI

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.