NumberResearch Membership · Data 09/25/2026

Recent thousands-block assignments

68 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. 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2018-10-09 513-799-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 737-610-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2018-10-09 737-610-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2018-10-08 309-506-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-10-08 309-506-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-10-08 309-506-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-10-08 309-506-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-10-08 309-506-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-10-08 360-228-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2018-10-04 279-333-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2018-10-04 323-853-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MONTEBELLO CA
2018-10-04 424-413-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNMN SNMN CA
2018-10-04 424-413-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SNMN SNMN CA
2018-10-04 424-413-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNMN SNMN CA
2018-10-04 425-984-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BOTHELL WA
2018-10-04 442-279-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BRAWLEY CA
2018-10-04 442-280-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BARSTOW CA
2018-10-04 510-930-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OKLD FRTVL CA
2018-10-04 562-380-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LONG BEACH CA
2018-10-04 562-380-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LONG BEACH CA
2018-10-04 650-709-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PALO ALTO CA
2018-10-04 657-357-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SANTA ANA CA
2018-10-04 657-357-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SANTA ANA CA
2018-10-04 657-364-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2018-10-04 669-282-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2018-10-04 669-282-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CAMPBELL CA
2018-10-04 760-907-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WARNER SPG CA
2018-10-04 858-214-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LA JOLLA CA
2018-10-04 858-302-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNDG LVTA CA
2018-10-04 916-770-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 RSVL MAIN CA
2018-10-04 971-323-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2018-10-02 309-429-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-10-02 309-592-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-10-02 309-592-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-10-02 424-407-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 W ANGELES CA
2018-10-02 424-407-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 W ANGELES CA
2018-10-02 530-460-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRVY MAIN CA
2018-10-02 650-398-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SAN MATEO CA
2018-10-02 650-398-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SAN MATEO CA
2018-10-02 650-402-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 HALFMOONBY CA
2018-10-02 650-402-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 HALFMOONBY CA
2018-10-02 657-347-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2018-10-02 657-347-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2018-10-02 657-348-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ORANGE 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.