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
2019-10-25 619-613-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2019-10-25 619-613-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2019-10-25 619-613-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2019-10-25 619-613-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2019-10-25 619-613-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2019-10-24 619-860-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SNDG SNDG CA
2019-10-22 619-703-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2019-10-22 619-703-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2019-10-10 619-613-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L LA MESA CA
2019-09-26 619-860-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2019-09-13 619-613-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LA MESA CA
2019-09-04 619-860-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNDG SNDG CA
2019-08-27 619-605-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG LVTA CA
2019-08-15 619-703-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2019-08-15 619-703-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2019-08-14 619-605-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNDG LVTA CA
2019-08-14 619-605-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SNDG LVTA CA
2019-08-14 619-605-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SNDG LVTA CA
2019-08-14 619-612-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C HARBSNALPN CA
2019-08-14 619-833-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C JACUMBA CA
2019-07-25 619-826-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DULZURA CA
2019-07-12 619-860-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2019-07-10 619-651-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 CHULAVISTA CA
2019-06-26 619-605-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG LVTA CA
2019-06-26 619-605-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG LVTA CA
2019-06-24 619-603-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2019-06-14 619-625-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DULZURA CA
2019-05-20 619-860-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2019-05-20 619-860-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2019-05-20 619-860-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2019-05-20 619-860-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2019-05-16 619-777-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2019-05-16 619-932-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2019-05-16 619-932-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2019-05-16 619-932-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2019-05-08 619-628-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2019-05-07 619-932-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2019-05-07 619-932-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2019-05-07 619-932-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2019-05-07 619-932-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2019-05-07 619-932-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2019-05-02 619-539-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2019-04-30 619-648-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2019-04-30 619-724-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2019-04-30 619-740-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2019-04-29 619-510-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2019-04-29 619-510-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2019-04-17 619-432-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2019-04-17 619-485-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HARBSNALPN CA
2019-04-17 619-539-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L 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.