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
2012-03-05 619-346-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2012-03-05 619-346-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2012-03-05 619-346-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2012-03-05 619-346-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2012-02-27 619-348-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2012-02-27 619-357-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2012-02-23 619-734-1XXX 1000–1999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2012-02-23 619-734-4XXX 4000–4999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2012-02-16 619-734-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2012-02-16 619-734-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHULAVISTA CA
2012-02-15 619-346-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNDG SNDG CA
2012-02-14 619-632-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2012-02-14 619-720-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2012-02-14 619-720-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2012-02-14 619-720-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2012-02-14 619-720-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2012-02-14 619-720-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2012-02-14 619-720-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2012-02-14 619-720-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2012-02-14 619-720-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2012-02-14 619-720-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2012-02-14 619-720-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2012-02-10 619-378-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAMPO CA
2012-02-10 619-566-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HARBSNALPN CA
2012-02-10 619-870-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CHULAVISTA CA
2012-02-07 619-737-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CHULAVISTA CA
2012-02-06 619-734-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2012-01-24 619-722-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HARBSNALPN CA
2012-01-24 619-722-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HARBSNALPN CA
2012-01-17 619-344-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2012-01-17 619-344-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2012-01-17 619-344-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2012-01-17 619-344-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2012-01-17 619-810-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2012-01-12 619-348-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2012-01-05 619-870-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2011-12-29 619-357-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2011-12-07 619-761-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2011-11-21 619-344-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNDG SNDG CA
2011-11-14 619-566-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HARBSNALPN CA
2011-11-11 619-473-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PINEVALLEY CA
2011-11-08 619-357-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2011-11-04 619-403-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2011-10-10 619-357-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 EL CAJON CA
2011-10-04 619-433-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2011-10-04 619-433-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2011-09-19 619-810-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SNDG SNDG CA
2011-09-15 619-772-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2011-09-15 619-870-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2011-09-15 619-870-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 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.