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
2016-09-07 619-771-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C LA MESA CA
2016-09-07 619-771-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LA MESA CA
2016-09-02 619-762-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CORONADO CA
2016-09-01 619-404-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2016-09-01 619-404-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2016-09-01 619-404-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2016-08-26 619-480-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2016-08-26 619-480-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2016-08-24 619-601-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C CHULAVISTA CA
2016-08-23 619-629-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2016-08-23 619-629-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2016-08-23 619-629-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2016-08-23 619-629-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2016-08-23 619-629-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2016-08-16 619-404-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2016-08-16 619-404-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2016-08-15 619-648-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2016-08-15 619-844-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2016-08-15 619-844-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2016-08-15 619-844-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2016-08-15 619-844-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2016-08-15 619-844-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2016-08-12 619-693-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C SNDG SNDG CA
2016-08-12 619-762-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CORONADO CA
2016-08-12 619-844-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C SNDG SNDG CA
2016-08-09 619-369-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HARBSNALPN CA
2016-08-09 619-629-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D SNDG SNDG CA
2016-08-09 619-844-7XXX 7000–7999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2016-08-08 619-332-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2016-08-02 619-731-5XXX 5000–5999Assigned HD CARRIER LLC 321J NATIONALCY CA
2016-08-02 619-731-6XXX 6000–6999Assigned HD CARRIER LLC 321J NATIONALCY CA
2016-07-19 619-317-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2016-07-19 619-317-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2016-07-19 619-693-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2016-07-19 619-693-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2016-07-19 619-693-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2016-07-19 619-693-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2016-07-14 619-329-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2016-07-14 619-329-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2016-07-14 619-329-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2016-07-14 619-369-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C HARBSNALPN CA
2016-07-14 619-369-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C HARBSNALPN CA
2016-07-14 619-416-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2016-07-14 619-693-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2016-07-14 619-731-7XXX 7000–7999Assigned METROPCS, INC. 5562 NATIONALCY CA
2016-07-01 619-513-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2016-07-01 619-513-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2016-07-01 619-513-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2016-07-01 619-513-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2016-06-28 619-601-1XXX 1000–1999Assigned METROPCS, INC. 5562 CHULAVISTA 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.