NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 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
2013-11-01 619-659-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C HARBSNALPN CA
2013-11-01 619-659-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C HARBSNALPN CA
2013-11-01 619-836-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2013-11-01 619-836-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2013-10-31 619-363-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2013-10-31 619-363-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2013-10-31 619-492-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C DULZURA CA
2013-10-31 619-492-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C DULZURA CA
2013-10-30 619-327-3XXX 3000–3999Assigned METROPCS, INC. 5562 NATIONALCY CA
2013-10-30 619-327-6XXX 6000–6999Assigned METROPCS, INC. 5562 NATIONALCY CA
2013-10-30 619-327-8XXX 8000–8999Assigned METROPCS, INC. 5562 NATIONALCY CA
2013-10-30 619-765-8XXX 8000–8999Assigned METROPCS, INC. 5562 NATIONALCY CA
2013-10-30 619-765-9XXX 9000–9999Assigned METROPCS, INC. 5562 NATIONALCY CA
2013-10-30 619-791-0XXX 0000–0999Assigned METROPCS, INC. 5562 NATIONALCY CA
2013-10-28 619-831-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2013-10-23 619-451-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2013-10-21 619-363-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2013-10-21 619-363-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2013-10-21 619-363-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2013-10-21 619-363-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2013-10-21 619-363-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2013-10-21 619-363-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2013-10-21 619-363-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2013-10-21 619-363-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2013-10-18 619-451-0XXX 0000–0999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2013-10-18 619-451-1XXX 1000–1999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2013-10-18 619-451-2XXX 2000–2999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2013-10-18 619-451-3XXX 3000–3999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2013-10-18 619-451-4XXX 4000–4999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2013-10-18 619-451-5XXX 5000–5999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2013-10-18 619-451-9XXX 9000–9999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2013-10-17 619-376-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2013-10-17 619-836-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2013-10-17 619-836-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2013-10-14 619-872-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2013-10-14 619-946-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2013-10-11 619-867-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LA MESA CA
2013-10-08 619-348-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2013-10-08 619-375-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL CAJON CA
2013-10-08 619-375-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL CAJON CA
2013-09-23 619-450-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2013-09-23 619-704-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2013-09-23 619-704-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2013-09-20 619-376-7XXX 7000–7999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2013-09-20 619-382-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2013-09-20 619-452-4XXX 4000–4999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2013-09-20 619-681-3XXX 3000–3999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2013-09-20 619-704-4XXX 4000–4999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2013-09-20 619-717-3XXX 3000–3999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2013-09-20 619-717-4XXX 4000–4999Assigned METROPCS, INC. 5562 SNDG SNDG 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.