NumberResearch Membership · Data 09/26/2026

Recent thousands-block assignments

68 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026

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. 68
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2018-01-16 469-881-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ENNIS TX
2018-01-16 469-881-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ENNIS TX
2018-01-16 469-881-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ENNIS TX
2018-01-16 469-881-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ENNIS TX
2018-01-16 669-268-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2018-01-16 805-742-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LOMPOC CA
2018-01-16 805-869-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SANBARBARA CA
2018-01-16 808-451-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2018-01-16 808-451-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 HONOLULU HI
2018-01-16 909-760-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DIAMONDBAR CA
2018-01-16 915-232-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2018-01-16 949-549-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LAGUNA BCH CA
2018-01-16 972-876-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ENNIS TX
2018-01-16 972-878-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ENNIS TX
2018-01-12 208-763-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 COERDALENE ID
2018-01-10 424-489-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2018-01-10 424-489-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2018-01-08 209-219-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ATWATER CA
2018-01-08 479-522-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 479-522-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 479-522-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 479-769-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 479-769-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 479-769-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 909-470-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-01-08 909-470-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-01-08 909-470-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-01-05 469-379-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 IRVING TX
2018-01-05 628-209-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NOVATO CA
2018-01-05 747-249-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2018-01-04 206-887-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2018-01-04 206-887-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2018-01-04 217-205-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MATTOON IL
2018-01-04 217-205-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MATTOON IL
2018-01-04 217-205-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MATTOON IL
2018-01-04 425-382-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EVERETT WA
2018-01-04 530-782-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 REDDING CA
2018-01-04 626-557-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2018-01-04 760-697-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ENCINITAS CA
2018-01-03 385-394-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2018-01-03 385-666-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2018-01-03 406-304-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MISSOULA MT
2018-01-03 503-374-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2018-01-03 503-374-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2018-01-03 503-374-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TILLAMOOK OR
2018-01-03 510-265-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HAYWARD CA
2018-01-03 510-571-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HAYWARD CA
2018-01-03 510-650-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELSBR-PINL CA
2018-01-03 682-258-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WEATHERFD TX
2017-12-22 737-232-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELGIN TX

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.