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
2019-03-14 909-588-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MENTONE CA
2019-03-13 909-977-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2019-02-27 909-716-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 POMONA CA
2019-02-25 909-449-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MARSHALL CA
2019-02-15 909-679-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 COLTON CA
2019-02-14 909-704-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2019-02-14 909-977-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2019-02-13 909-701-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2019-02-06 909-715-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CRESTLINE CA
2019-02-06 909-715-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CRESTLINE CA
2019-02-06 909-715-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CRESTLINE CA
2019-02-04 909-698-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CRESTLINE CA
2019-02-04 909-698-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CRESTLINE CA
2019-02-04 909-698-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CRESTLINE CA
2019-02-01 909-293-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CLAREMONT CA
2019-02-01 909-403-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C RUNNINGSPG CA
2019-02-01 909-403-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C RUNNINGSPG CA
2019-02-01 909-415-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C BIGBEAR LK CA
2019-02-01 909-415-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C BIGBEAR LK CA
2019-02-01 909-710-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ETIWANDA CA
2019-02-01 909-710-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ETIWANDA CA
2019-02-01 909-710-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ETIWANDA CA
2019-02-01 909-710-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ETIWANDA CA
2019-02-01 909-710-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ETIWANDA CA
2019-02-01 909-710-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ETIWANDA CA
2019-01-31 909-359-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C HIGHLAND CA
2019-01-31 909-359-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C HIGHLAND CA
2019-01-31 909-359-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C HIGHLAND CA
2019-01-30 909-505-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C BIGBEAR CY CA
2019-01-30 909-768-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CALIMESA CA
2019-01-30 909-768-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C CALIMESA CA
2019-01-29 909-452-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2019-01-29 909-516-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHINO CA
2019-01-25 909-449-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARSHALL CA
2019-01-25 909-577-7XXX 7000–7999Assigned FRACTEL, LLC 965H S BERNDINO CA
2019-01-25 909-966-6XXX 6000–6999Assigned FRACTEL, LLC 965H ONTARIO CA
2019-01-25 909-977-7XXX 7000–7999Assigned FRACTEL, LLC 965H FONTANA CA
2019-01-18 909-507-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 FONTANA CA
2019-01-17 909-506-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2019-01-17 909-737-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 HIGHLAND CA
2019-01-14 909-710-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ETIWANDA CA
2019-01-11 909-513-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2019-01-11 909-513-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2019-01-11 909-704-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2019-01-11 909-704-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2019-01-11 909-955-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2019-01-07 909-449-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MARSHALL CA
2019-01-04 909-407-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CLAREMONT CA
2018-12-24 909-330-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ETIWANDA CA
2018-12-24 909-407-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLAREMONT 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.