NumberResearch Membership · Data 09/25/2026

Recent thousands-block assignments

69 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/25/2026

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
2019-07-12 510-929-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OKLD MN-PD CA
2019-07-12 510-988-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OKLD FRTVL CA
2019-07-12 562-267-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LA HABRA CA
2019-07-12 564-999-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2019-07-12 628-529-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNFC JUNPR CA
2019-07-12 650-788-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PALO ALTO CA
2019-07-12 657-732-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SILVERADO CA
2019-07-12 661-690-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DELANO CA
2019-07-12 707-920-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FRFLD-SUIS CA
2019-07-12 747-270-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2019-07-12 747-270-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2019-07-12 760-697-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ENCINITAS CA
2019-07-12 805-803-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SANTAMARIA CA
2019-07-12 909-359-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HIGHLAND CA
2019-07-12 909-761-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 S BERNDINO CA
2019-07-12 925-488-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WALNUT CRK CA
2019-07-12 949-691-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2019-07-11 808-437-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 HILO HI
2019-07-09 971-354-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2019-07-08 971-353-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2019-07-05 360-228-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2019-07-05 424-541-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 INGLEWOOD CA
2019-07-05 424-541-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 INGLEWOOD CA
2019-07-05 509-900-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SPOKANE WA
2019-07-05 509-900-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SPOKANE WA
2019-07-05 626-501-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL MONTE CA
2019-07-05 661-899-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LANCASTER CA
2019-07-05 747-313-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2019-07-05 747-313-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2019-07-05 747-888-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2019-07-05 747-888-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2019-07-05 949-561-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 IRVINE CA
2019-07-05 971-341-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2019-07-03 209-219-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ATWATER CA
2019-07-03 385-301-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2019-07-03 385-301-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2019-07-03 385-301-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2019-07-03 406-607-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 KALISPELL MT
2019-07-03 442-294-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 RIDGECREST CA
2019-07-03 626-567-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PSDN PSDN CA
2019-07-03 626-567-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PSDN PSDN CA
2019-07-03 626-567-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PSDN PSDN CA
2019-07-03 725-217-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LAUGHLIN NV
2019-07-03 725-217-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LAUGHLIN NV
2019-07-03 949-401-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 RNCHOVIEJO CA
2019-07-03 971-335-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2019-07-03 971-335-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLACKAMAS OR
2019-07-02 682-290-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WEATHERFD TX
2019-07-01 424-420-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 INGLEWOOD CA
2019-07-01 747-313-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.