NumberResearch Membership · Data 09/24/2026

Recent thousands-block assignments

69 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/24/2026

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
T-MOBILE USA, INC. 69
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
2009-09-24 330-787-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2009-09-24 330-787-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2009-09-24 330-787-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2009-09-24 440-296-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PAINESVL OH
2009-09-24 440-723-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELYRIA OH
2009-09-24 440-723-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELYRIA OH
2009-09-24 440-723-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELYRIA OH
2009-09-24 440-783-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 STRONGSVL OH
2009-09-24 440-789-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ASHTABULA OH
2009-09-24 440-983-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MADISON OH
2009-09-24 513-291-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2009-09-24 513-299-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2009-09-24 513-331-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LEBANON OH
2009-09-24 513-331-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LEBANON OH
2009-09-24 513-331-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LEBANON OH
2009-09-24 513-331-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LEBANON OH
2009-09-24 513-331-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LEBANON OH
2009-09-24 513-655-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2009-09-24 513-655-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2009-09-24 513-655-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2009-09-24 937-342-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2009-09-24 937-615-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PIQUA OH
2009-09-24 937-615-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PIQUA OH
2009-09-24 937-831-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2009-09-24 937-831-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2009-09-23 216-206-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2009-09-23 216-672-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2009-09-23 216-924-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2009-09-23 216-924-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2009-09-23 216-924-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2009-09-23 216-924-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2009-09-23 216-924-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2009-09-23 254-350-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 KILLEEN TX
2009-09-23 254-981-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WACO TX
2009-09-23 330-777-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2009-09-23 419-612-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MANSFIELD OH
2009-09-23 419-612-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MANSFIELD OH
2009-09-23 419-612-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MANSFIELD OH
2009-09-23 515-209-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WEBSTER CY IA
2009-09-23 909-272-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2009-09-23 937-279-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-23 937-279-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-23 937-396-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-21 480-352-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2009-09-21 480-352-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2009-09-21 480-352-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2009-09-21 567-876-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MT GILEAD OH
2009-09-17 216-482-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2009-09-17 216-688-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2009-09-17 216-688-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.