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
2020-02-04 909-966-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C ONTARIO CA
2020-02-03 909-788-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2020-01-14 909-858-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CHINO CA
2020-01-14 909-858-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CHINO CA
2020-01-14 909-858-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C CHINO CA
2020-01-13 909-672-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 HIGHLAND CA
2020-01-10 909-780-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARSHALL CA
2020-01-09 909-769-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CALIMESA CA
2020-01-08 909-712-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 REDLANDS CA
2020-01-08 909-739-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 UPLAND CA
2020-01-07 909-712-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDLANDS CA
2019-12-18 909-415-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BIGBEAR LK CA
2019-12-18 909-966-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F ONTARIO CA
2019-12-13 909-769-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CALIMESA CA
2019-12-13 909-769-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CALIMESA CA
2019-12-13 909-788-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CLAREMONT CA
2019-12-03 909-955-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RIALTO CA
2019-11-27 909-616-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DIAMONDBAR CA
2019-11-26 909-779-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2019-11-26 909-779-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2019-11-26 909-779-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2019-11-26 909-779-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2019-11-26 909-779-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2019-11-22 909-716-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2019-11-22 909-716-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POMONA CA
2019-11-22 909-858-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D CHINO CA
2019-10-25 909-778-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-778-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-778-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-778-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-778-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-778-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-778-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-778-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-778-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-778-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-813-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-813-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-813-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-813-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-813-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-813-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-813-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-813-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-813-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-25 909-813-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2019-10-22 909-577-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 S BERNDINO CA
2019-10-22 909-716-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 POMONA CA
2019-10-22 909-966-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ONTARIO CA
2019-10-14 909-739-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 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.