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
2006-01-25 619-873-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2006-01-24 619-947-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2006-01-24 619-947-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2006-01-24 619-947-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2006-01-20 619-495-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2006-01-20 619-495-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2006-01-20 619-495-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2006-01-20 619-495-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2006-01-18 619-609-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LA MESA CA
2006-01-12 619-964-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNDG SNDG CA
2006-01-12 619-964-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNDG SNDG CA
2006-01-11 619-638-6XXX 6000–6999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2006-01-11 619-638-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2006-01-05 619-490-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2005-12-29 619-313-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CORONADO CA
2005-12-27 619-274-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2005-12-20 619-353-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C JACUMBA CA
2005-12-20 619-478-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CAMPO CA
2005-12-20 619-492-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C DULZURA CA
2005-12-14 619-966-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L EL CAJON CA
2005-12-07 619-268-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DULZURA CA
2005-12-07 619-324-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HARBSNALPN CA
2005-12-06 619-313-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CORONADO CA
2005-12-06 619-764-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2005-12-06 619-937-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2005-11-30 619-928-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2005-11-23 619-564-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2005-11-23 619-564-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNDG SNDG CA
2005-11-23 619-964-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNDG SNDG CA
2005-11-23 619-964-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNDG SNDG CA
2005-11-22 619-268-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DULZURA CA
2005-11-18 619-320-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HARBSNALPN CA
2005-11-18 619-419-7XXX 7000–7999Assigned METROPCS, INC. 5562 NATIONALCY CA
2005-11-18 619-564-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2005-11-18 619-623-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2005-11-18 619-623-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2005-11-18 619-623-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2005-11-18 619-623-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2005-11-18 619-966-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2005-11-17 619-564-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J SNDG SNDG CA
2005-11-17 619-564-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SNDG SNDG CA
2005-11-17 619-564-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SNDG SNDG CA
2005-11-15 619-623-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CHULAVISTA CA
2005-11-15 619-869-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CHULAVISTA CA
2005-11-04 619-599-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL CAJON CA
2005-11-04 619-599-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL CAJON CA
2005-11-02 619-773-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2005-10-28 619-564-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2005-10-28 619-564-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2005-10-26 619-315-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LA MESA 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.