NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

25 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 820
ONVOY, LLC - CA 18
T-MOBILE USA, INC. 3
NEW CINGULAR WIRELESS PCS, LLC 2
TELNYX LLC 1
PEERLESS NETWORK OF CALIFORNIA, 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
2021-06-30 820-288-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C VNTRA EAST CA
2021-06-30 820-288-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C VNTRA EAST CA
2021-06-30 820-288-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C VNTRA EAST CA
2021-06-30 820-299-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C CAMARILLO CA
2021-06-30 820-299-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C CAMARILLO CA
2021-06-30 820-299-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CAMARILLO CA
2021-06-30 820-299-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C CAMARILLO CA
2021-06-30 820-299-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-06-30 820-299-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-06-30 820-299-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-06-30 820-299-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-06-30 820-336-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C GUADALUPE CA
2021-06-30 820-336-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C GUADALUPE CA
2021-06-30 820-345-5XXX 5000–5999Assigned TELNYX LLC 073H EL RIO CA
2021-06-30 820-356-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C POINT MUGU CA
2021-06-30 820-356-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C POINT MUGU CA
2021-06-30 820-356-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C POINT MUGU CA
2021-06-30 820-356-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C POINT MUGU CA
2021-06-30 820-444-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C NEWBURYPRK CA
2021-06-30 820-444-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C NEWBURYPRK CA
2021-06-30 820-444-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C NEWBURYPRK CA
2021-06-30 820-444-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C NEWBURYPRK CA
2021-06-30 820-500-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C GAVIOTA CA
2021-06-30 820-529-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PIRU CA
2021-06-30 820-600-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PISMOBEACH CA
2021-06-30 820-600-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C PISMOBEACH CA
2021-06-30 820-732-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C VNTRA CNTL CA
2021-06-30 820-732-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C VNTRA CNTL CA
2021-06-30 820-732-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C VNTRA CNTL CA
2021-06-30 820-732-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C VNTRA CNTL CA
2021-06-30 820-758-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SANBARBARA CA
2021-06-30 820-777-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SANTAPAULA CA
2021-06-30 820-777-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SANTAPAULA CA
2021-06-30 820-777-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SANTAPAULA CA
2021-06-30 820-777-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SANTAPAULA CA
2021-06-30 820-800-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C CAYUCOS CA
2021-06-30 820-842-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C OAKVIEW CA
2021-06-30 820-842-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C OAKVIEW CA
2021-06-30 820-888-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SIMIVALLEY CA
2021-06-30 820-888-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SIMIVALLEY CA
2021-06-30 820-888-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SIMIVALLEY CA
2021-06-30 820-899-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SANTAMARIA CA
2021-06-30 820-899-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SANTAMARIA CA
2021-06-30 820-899-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SANTAMARIA CA
2021-06-30 820-899-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SANTAMARIA CA
2021-06-30 820-900-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C BRADLEY CA
2021-06-29 820-346-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C ARROYOGRND CA
2021-06-28 820-758-3XXX 3000–3999Assigned COMMIO, LLC 939H SANBARBARA CA
2021-06-28 820-758-4XXX 4000–4999Assigned COMMIO, LLC 939H SANBARBARA CA
2021-06-28 820-758-5XXX 5000–5999Assigned COMMIO, LLC 939H SANBARBARA CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.