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
2011-09-14 619-350-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C JACUMBA CA
2011-09-14 619-478-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C CAMPO CA
2011-09-14 619-842-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C PINEVALLEY CA
2011-09-13 619-387-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E EL CAJON CA
2011-09-09 619-737-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2011-08-31 619-230-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SNDG SNDG CA
2011-08-23 619-777-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2011-08-19 619-777-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2011-08-16 619-825-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C LA MESA CA
2011-08-05 619-433-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2011-07-27 619-272-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNDG SNDG CA
2011-07-27 619-346-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNDG SNDG CA
2011-07-20 619-732-2XXX 2000–2999Assigned METROPCS, INC. 5562 NATIONALCY CA
2011-07-14 619-722-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HARBSNALPN CA
2011-07-13 619-213-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2011-07-13 619-631-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C EL CAJON CA
2011-07-13 619-892-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2011-06-20 619-826-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C DULZURA CA
2011-06-17 619-717-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2011-06-08 619-387-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2011-06-03 619-734-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2011-06-03 619-734-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2011-06-03 619-760-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL CAJON CA
2011-06-01 619-610-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2011-06-01 619-780-0XXX 0000–0999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2011-05-31 619-798-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K SNDG SNDG CA
2011-05-27 619-346-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2011-05-27 619-346-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2011-05-27 619-346-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2011-05-27 619-346-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2011-05-24 619-433-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2011-05-24 619-433-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2011-05-16 619-777-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2011-05-16 619-777-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2011-05-16 619-777-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2011-05-04 619-735-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CHULAVISTA CA
2011-04-27 619-292-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NATIONALCY CA
2011-04-27 619-320-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HARBSNALPN CA
2011-04-27 619-356-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2011-04-27 619-356-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2011-04-27 619-356-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2011-04-27 619-356-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2011-04-27 619-387-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E EL CAJON CA
2011-04-27 619-403-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LA MESA CA
2011-04-27 619-500-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2011-04-27 619-500-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2011-04-27 619-500-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2011-04-27 619-500-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2011-04-27 619-500-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2011-04-27 619-500-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E 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.