NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

24 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 530
ONVOY, LLC - CA 9
BANDWIDTH.COM CLEC, LLC - CA 6
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 4
OPENTACT INC. 3
T-MOBILE USA, INC. 2
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
2019-02-07 530-715-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CHICO CA
2019-01-30 530-450-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C AUBN MAIN CA
2019-01-30 530-450-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C AUBN MAIN CA
2019-01-30 530-489-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C HOMEWOOD CA
2019-01-30 530-489-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C HOMEWOOD CA
2019-01-30 530-499-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C PLVL WEST CA
2019-01-30 530-794-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C WINTERS CA
2019-01-30 530-794-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C WINTERS CA
2019-01-30 530-795-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C WINTERS CA
2019-01-29 530-764-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OROVILLE CA
2019-01-28 530-296-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PLVL KYBRZ CA
2019-01-28 530-296-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C PLVL KYBRZ CA
2019-01-28 530-346-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C COLFAX CA
2019-01-28 530-349-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C COLFAX CA
2019-01-28 530-358-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C NOSAN JUAN CA
2019-01-28 530-358-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C NOSAN JUAN CA
2019-01-28 530-393-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C WILLIAMS CA
2019-01-28 530-393-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C WILLIAMS CA
2019-01-28 530-420-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C ROBBINS CA
2019-01-28 530-420-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C ROBBINS CA
2019-01-28 530-457-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C GEORGETOWN CA
2019-01-28 530-457-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C GEORGETOWN CA
2019-01-28 530-460-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C GRVY MAIN CA
2019-01-28 530-460-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C GRVY MAIN CA
2019-01-28 530-466-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C ALLEGHANY CA
2019-01-28 530-466-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C ALLEGHANY CA
2019-01-28 530-482-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SODA SPG CA
2019-01-28 530-482-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SODA SPG CA
2019-01-28 530-498-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C CLFX WEMR CA
2019-01-28 530-498-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C CLFX WEMR CA
2019-01-28 530-506-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C KNIGHTSLDG CA
2019-01-28 530-506-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C KNIGHTSLDG CA
2019-01-28 530-507-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C ESPARTO CA
2019-01-28 530-507-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C ESPARTO CA
2019-01-28 530-508-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C DUNNIGAN CA
2019-01-28 530-508-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C DUNNIGAN CA
2019-01-28 530-522-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CAMPTONVL CA
2019-01-28 530-522-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CAMPTONVL CA
2019-01-28 530-536-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C TRUCKEE CA
2019-01-28 530-548-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C NTAH BCWY CA
2019-01-28 530-548-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C NTAH BCWY CA
2019-01-28 530-565-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LIVE OAK CA
2019-01-28 530-565-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C LIVE OAK CA
2019-01-28 530-696-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C MERIDIAN CA
2019-01-28 530-696-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C MERIDIAN CA
2019-01-28 530-721-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SOUTHTAHOE CA
2019-01-28 530-728-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C GRVY SOUTH CA
2019-01-28 530-728-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C GRVY SOUTH CA
2019-01-28 530-807-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C NTAH THCY CA
2019-01-28 530-807-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C NTAH THCY 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.