NumberResearch Membership · Data 09/23/2026

Recent thousands-block assignments

59 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/23/2026

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. 59
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
2021-02-05 260-977-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LAGRANGE IN
2021-02-05 330-223-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HANOVERTON OH
2021-02-05 360-672-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 OAK HARBOR WA
2021-02-05 442-423-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LKISABELLA CA
2021-02-05 564-200-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2021-02-05 564-200-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2021-02-05 574-240-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MONTICELLO IN
2021-02-05 574-373-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WARSAW IN
2021-02-05 775-699-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FALLON NV
2021-02-05 925-914-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLAYTON CA
2021-02-05 937-803-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GREENFIELD OH
2021-02-05 937-896-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 URBANA OH
2021-02-05 970-575-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 FRASER CO
2021-02-04 715-390-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLBY WI
2021-02-04 715-753-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MEDFORD WI
2021-02-04 715-883-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 STEVENS PT WI
2021-02-03 501-356-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 JESSIEVL AR
2021-02-03 870-319-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BRINKLEY AR
2021-02-01 330-964-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LISBON OH
2021-02-01 573-516-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 FLAT RIVER MO
2021-02-01 573-516-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FLAT RIVER MO
2021-02-01 719-931-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LAMAR CO
2021-02-01 814-550-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MEADVILLE PA
2021-02-01 814-550-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MEADVILLE PA
2021-02-01 970-291-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 STEAMBOSPG CO
2021-01-30 360-776-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BUCKLEY WA
2021-01-30 440-278-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WICKLIFFE OH
2021-01-30 440-278-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WICKLIFFE OH
2021-01-30 469-937-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 FORNEY TX
2021-01-30 469-937-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FORNEY TX
2021-01-30 469-937-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 FORNEY TX
2021-01-30 469-937-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FORNEY TX
2021-01-30 469-937-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 FORNEY TX
2021-01-30 469-937-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FORNEY TX
2021-01-30 509-304-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLE ELUM WA
2021-01-30 509-428-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 RITZVILLE WA
2021-01-30 509-550-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NEWPORT WA
2021-01-30 509-778-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PROSSER WA
2021-01-30 509-980-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CONNELL WA
2021-01-30 530-804-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WILLOWS CA
2021-01-30 541-624-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LA GRANDE OR
2021-01-30 779-270-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DE KALB IL
2021-01-30 779-270-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DE KALB IL
2021-01-30 815-909-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DE KALB IL
2021-01-30 815-909-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DE KALB IL
2021-01-30 928-398-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SOMERTON AZ
2021-01-30 940-654-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MINERLWLLS TX
2021-01-29 209-793-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MERCED CA
2021-01-29 360-643-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2021-01-29 435-299-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PRICE UT

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.