NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

13 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 — NPA 840
ONVOY, LLC - CA 9
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 3
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 1
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
2021-03-17 840-666-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FONTANA CA
2021-03-17 840-900-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RIALTO CA
2021-03-15 840-201-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FONTANA CA
2021-03-15 840-888-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 REDLANDS CA
2021-03-09 840-666-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FONTANA CA
2021-03-09 840-900-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RIALTO CA
2021-03-01 840-666-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2021-03-01 840-666-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2021-03-01 840-999-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2021-03-01 840-999-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2021-03-01 840-999-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2021-03-01 840-999-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2021-02-22 840-888-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDLANDS CA
2021-02-18 840-600-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLTON CA
2021-02-18 840-600-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLTON CA
2021-02-17 840-200-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHINO CA
2021-02-05 840-800-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E UPLAND CA
2021-02-05 840-800-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E UPLAND CA
2021-02-05 840-800-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E UPLAND CA
2021-02-05 840-888-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C REDLANDS CA
2021-02-05 840-888-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C REDLANDS CA
2021-02-05 840-888-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C REDLANDS CA
2021-01-06 840-444-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2021-01-06 840-444-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2021-01-06 840-444-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2021-01-06 840-444-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2021-01-06 840-444-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2021-01-06 840-444-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2021-01-05 840-200-0XXX 0000–0999Assigned FRACTEL, LLC 965H CHINO CA
2021-01-05 840-400-0XXX 0000–0999Assigned FRACTEL, LLC 965H ONTARIO CA
2021-01-05 840-600-0XXX 0000–0999Assigned FRACTEL, LLC 965H COLTON CA
2020-12-28 840-222-2XXX 2000–2999Assigned FRACTEL, LLC 965H S BERNDINO CA
2020-12-28 840-333-3XXX 3000–3999Assigned FRACTEL, LLC 965H POMONA CA
2020-12-28 840-333-4XXX 4000–4999Assigned FRACTEL, LLC 965H POMONA CA
2020-12-28 840-444-4XXX 4000–4999Assigned FRACTEL, LLC 965H ARROWHEAD CA
2020-12-28 840-444-5XXX 5000–5999Assigned FRACTEL, LLC 965H ARROWHEAD CA
2020-12-28 840-666-6XXX 6000–6999Assigned FRACTEL, LLC 965H FONTANA CA
2020-12-28 840-800-0XXX 0000–0999Assigned FRACTEL, LLC 965H UPLAND CA
2020-12-28 840-800-8XXX 8000–8999Assigned FRACTEL, LLC 965H UPLAND CA
2020-12-28 840-900-0XXX 0000–0999Assigned FRACTEL, LLC 965H RIALTO CA
2020-12-28 840-900-9XXX 9000–9999Assigned FRACTEL, LLC 965H RIALTO CA
2020-12-23 840-777-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J POMONA CA
2020-12-23 840-888-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J REDLANDS CA
2020-12-23 840-999-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J UPLAND CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.