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
2019-07-10 530-430-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SIERRAVL CA
2019-07-10 530-431-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C RICHVALE CA
2019-07-10 530-576-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LOSMOLINOS CA
2019-07-10 530-576-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C LOSMOLINOS CA
2019-07-10 530-602-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C RED BLUFF CA
2019-07-10 530-602-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C RED BLUFF CA
2019-07-10 530-643-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C YREKA CA
2019-07-10 530-657-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C WEED CA
2019-07-10 530-684-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C MONTAGUE CA
2019-07-10 530-688-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SHASTALAKE CA
2019-07-10 530-688-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SHASTALAKE CA
2019-07-10 530-729-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C HORNBROOK CA
2019-07-10 530-729-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C HORNBROOK CA
2019-07-10 530-804-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C WILLOWS CA
2019-07-10 530-804-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C WILLOWS CA
2019-07-10 530-805-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C ORLAND CA
2019-07-10 530-805-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C ORLAND CA
2019-07-10 530-833-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C PASKENTA CA
2019-07-10 530-833-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C PASKENTA CA
2019-07-10 530-922-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C OROVILLE CA
2019-07-10 530-922-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C OROVILLE CA
2019-07-10 530-993-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C LOYALTON CA
2019-07-10 530-993-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LOYALTON CA
2019-07-09 530-599-4XXX 4000–4999Assigned METROPCS, INC. 5562 MARYSVILLE CA
2019-07-03 530-203-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C ELK CREEK CA
2019-07-03 530-203-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C ELK CREEK CA
2019-07-03 530-236-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CHALLENGE CA
2019-07-03 530-236-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C CHALLENGE CA
2019-07-03 530-731-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C GRENADA CA
2019-07-03 530-803-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C COTTONWOOD CA
2019-07-03 530-803-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C COTTONWOOD CA
2019-07-03 530-884-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C BUTTE CITY CA
2019-07-03 530-884-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C BUTTE CITY CA
2019-07-01 530-296-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C PLVL KYBRZ CA
2019-06-21 530-573-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SOUTHTAHOE CA
2019-06-19 530-288-8XXX 8000–8999Assigned FRACTEL, LLC 965H CAMPTONVL CA
2019-06-17 530-606-7XXX 7000–7999Assigned CSC WIRELESS, LLC 425J TRUCKEE CA
2019-06-17 530-606-8XXX 8000–8999Assigned CSC WIRELESS, LLC 425J TRUCKEE CA
2019-06-14 530-602-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RED BLUFF CA
2019-06-05 530-560-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDDING CA
2019-05-17 530-490-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WOODLAND CA
2019-05-07 530-561-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANDERSON CA
2019-05-06 530-599-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MARYSVILLE CA
2019-05-03 530-670-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C CORNING CA
2019-04-29 530-232-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C REDDING CA
2019-04-29 530-572-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J YREKA CA
2019-04-18 530-807-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NTAH THCY CA
2019-04-17 530-531-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BIGGS CA
2019-04-16 530-450-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J AUBN MAIN CA
2019-04-12 530-464-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C ALTA 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.