NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

31 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 530
ONVOY, LLC - CA 16
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
2023-06-23 530-789-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C MARYSVILLE CA
2023-06-23 530-932-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C ANDERSON CA
2023-06-23 530-963-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C STONYFORD CA
2023-06-23 530-968-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C ELK CREEK CA
2023-06-16 530-932-8XXX 8000–8999Assigned METROPCS, INC. 5562 ANDERSON CA
2023-06-15 530-709-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MARYSVILLE CA
2023-06-15 530-849-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J SHINGLETN CA
2023-06-15 530-930-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MARYSVILLE CA
2023-06-15 530-930-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MARYSVILLE CA
2023-06-15 530-930-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MARYSVILLE CA
2023-06-15 530-930-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MARYSVILLE CA
2023-06-14 530-658-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ESPARTO CA
2023-06-14 530-975-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GRIDLEY CA
2023-06-08 530-255-9XXX 9000–9999Assigned NUSO, LLC 732J REDDING CA
2023-06-01 530-817-8XXX 8000–8999Assigned TELNYX LLC 073H NEVADACITY CA
2023-05-25 530-897-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J CHICO CA
2023-05-24 530-954-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L LIVE OAK CA
2023-05-08 530-940-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J AUBN MAIN CA
2023-05-08 530-940-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AUBN MAIN CA
2023-05-08 530-940-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUBN MAIN CA
2023-05-04 530-255-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J REDDING CA
2023-05-04 530-433-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICO CA
2023-05-04 530-656-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J NICOLAUS CA
2023-05-04 530-704-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J WOODLAND CA
2023-05-04 530-880-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ORLAND CA
2023-05-04 530-930-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J MARYSVILLE CA
2023-05-04 530-952-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J PLVL WEST CA
2023-05-01 530-943-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J WILLOWS CA
2023-05-01 530-947-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J COLUSA CA
2023-04-18 530-939-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NOSAN JUAN CA
2023-04-13 530-649-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LIVE OAK CA
2023-04-13 530-704-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WOODLAND CA
2023-04-11 530-930-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C MARYSVILLE CA
2023-03-30 530-447-8XXX 8000–8999Assigned TELNYX LLC 073H ALLEGHANY CA
2023-03-15 530-394-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 QUINCY CA
2023-03-15 530-717-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHICO CA
2023-03-10 530-930-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARYSVILLE CA
2023-03-10 530-975-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L GRIDLEY CA
2023-02-15 530-750-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 DAVIS CA
2023-02-15 530-796-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 GUINDA CA
2023-01-30 530-560-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C REDDING CA
2023-01-30 530-806-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C REDDING CA
2023-01-11 530-907-1XXX 1000–1999Assigned NUSO, LLC 732J CHICO CA
2023-01-09 530-438-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 MAXWELL CA
2022-12-15 530-479-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J VERDI CA
2022-12-15 530-567-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J RED BLUFF CA
2022-12-05 530-245-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C REDDING CA
2022-11-23 530-960-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C BIGGS CA
2022-11-18 530-975-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C GRIDLEY CA
2022-11-18 530-975-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C GRIDLEY 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.