NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 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 619
NEW CINGULAR WIRELESS PCS, LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2022-01-19 619-984-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2022-01-14 619-983-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2022-01-14 619-983-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2022-01-14 619-983-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2022-01-14 619-983-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2021-12-20 619-974-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CHULAVISTA CA
2021-12-20 619-974-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CHULAVISTA CA
2021-12-20 619-974-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CHULAVISTA CA
2021-12-20 619-974-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CHULAVISTA CA
2021-12-15 619-975-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C DULZURA CA
2021-12-10 619-974-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-12-10 619-974-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-12-10 619-974-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-12-10 619-974-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-12-10 619-974-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-12-10 619-974-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-12-09 619-943-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-12-09 619-975-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DULZURA CA
2021-11-22 619-953-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H LA JOLLA CA
2021-11-22 619-953-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LA JOLLA CA
2021-11-22 619-953-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LA JOLLA CA
2021-11-22 619-953-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H LA JOLLA CA
2021-11-22 619-953-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H LA JOLLA CA
2021-11-22 619-953-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LA JOLLA CA
2021-11-22 619-953-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H LA JOLLA CA
2021-11-22 619-967-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H NATIONALCY CA
2021-11-22 619-967-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H NATIONALCY CA
2021-11-10 619-943-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2021-11-10 619-943-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2021-11-10 619-943-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2021-11-03 619-943-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CHULAVISTA CA
2021-10-29 619-943-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-10-29 619-943-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-10-29 619-943-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-10-29 619-943-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-10-29 619-943-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-10-28 619-949-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-10-26 619-953-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LA JOLLA CA
2021-10-26 619-953-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LA JOLLA CA
2021-10-26 619-953-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LA JOLLA CA
2021-10-25 619-826-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F DULZURA CA
2021-10-19 619-967-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H NATIONALCY CA
2021-10-19 619-967-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H NATIONALCY CA
2021-10-19 619-967-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H NATIONALCY CA
2021-10-19 619-967-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H NATIONALCY CA
2021-10-19 619-967-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H NATIONALCY CA
2021-10-15 619-951-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LA MESA CA
2021-10-12 619-766-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H JACUMBA CA
2021-10-11 619-963-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNDG SNDG CA
2021-10-11 619-963-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNDG SNDG 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.