NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 909
ONVOY, LLC - CA 6
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
BANDWIDTH.COM CLEC, LLC - 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-10-20 909-914-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DIAMONDBAR CA
2020-10-15 909-616-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DIAMONDBAR CA
2020-10-15 909-616-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DIAMONDBAR CA
2020-10-15 909-850-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ONTARIO CA
2020-10-15 909-850-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ONTARIO CA
2020-10-14 909-830-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2020-10-14 909-830-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2020-10-14 909-858-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHINO CA
2020-10-14 909-858-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHINO CA
2020-10-09 909-415-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BIGBEAR LK CA
2020-10-09 909-892-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F UPLAND CA
2020-10-08 909-805-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2020-10-08 909-808-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2020-10-08 909-808-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2020-10-08 909-897-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CRESTLINE CA
2020-10-07 909-516-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CHINO CA
2020-10-06 909-836-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDLANDS CA
2020-10-05 909-707-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C BIGBEAR CY CA
2020-10-05 909-707-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C BIGBEAR CY CA
2020-10-05 909-850-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C ONTARIO CA
2020-10-05 909-850-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C ONTARIO CA
2020-10-02 909-830-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2020-10-02 909-830-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2020-10-02 909-830-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2020-10-02 909-830-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2020-10-02 909-830-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2020-09-29 909-852-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ETIWANDA CA
2020-09-29 909-871-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MARSHALL CA
2020-09-29 909-871-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MARSHALL CA
2020-09-29 909-892-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2020-09-29 909-892-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2020-09-23 909-850-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2020-09-23 909-850-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2020-09-23 909-893-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J S BERNDINO CA
2020-09-20 909-808-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2020-09-20 909-808-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2020-09-14 909-516-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHINO CA
2020-09-14 909-516-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHINO CA
2020-09-14 909-836-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 REDLANDS CA
2020-09-14 909-836-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 REDLANDS CA
2020-09-14 909-954-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLTON CA
2020-09-09 909-847-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2020-09-09 909-847-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2020-09-09 909-847-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2020-09-09 909-847-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2020-09-09 909-849-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 S BERNDINO CA
2020-09-09 909-849-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 S BERNDINO CA
2020-09-09 909-849-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 S BERNDINO CA
2020-09-09 909-849-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 S BERNDINO CA
2020-09-09 909-849-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 S BERNDINO 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.