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 847
T-MOBILE USA, INC. 201
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
2025-10-03 847-483-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2025-06-06 847-325-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WHEELING IL
2024-08-14 847-481-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2024-08-14 847-797-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2023-12-15 847-350-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BENSENVL IL
2023-12-15 847-595-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BENSENVL IL
2018-10-18 847-654-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PALATINE IL
2017-03-15 847-510-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2017-03-15 847-510-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2017-01-12 847-641-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2017-01-12 847-641-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2016-07-13 847-641-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2015-06-24 847-262-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELK GROVE IL
2015-06-24 847-262-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELK GROVE IL
2015-06-24 847-262-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELK GROVE IL
2014-12-10 847-766-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BENSENVL IL
2014-10-22 847-262-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELK GROVE IL
2014-10-22 847-262-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELK GROVE IL
2014-07-16 847-429-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-16 847-468-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-16 847-468-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2013-06-27 847-246-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ZION IL
2013-04-02 847-904-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2012-04-24 847-637-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2011-04-29 847-564-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-04-29 847-664-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-04-29 847-664-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-04-29 847-790-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-04-01 847-418-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-04-01 847-418-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2010-10-01 847-730-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2010-08-24 847-749-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2010-08-24 847-749-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2010-07-15 847-749-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2010-07-15 847-749-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2010-05-28 847-834-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2010-01-05 847-660-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2009-05-05 847-532-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2009-04-02 847-505-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2009-03-17 847-834-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2009-01-26 847-907-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PALATINE IL
2008-11-03 847-532-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2008-09-25 847-505-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2008-09-25 847-505-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2008-09-25 847-505-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2008-09-02 847-532-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2008-09-02 847-532-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2008-06-18 847-730-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GLENVIEW IL
2008-06-13 847-907-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PALATINE IL
2008-06-13 847-907-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PALATINE IL

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.