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
2008-05-22 619-600-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2008-05-16 619-272-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2008-05-14 619-592-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2008-05-14 619-592-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2008-05-14 619-592-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2008-05-07 619-456-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 EL CAJON CA
2008-05-07 619-569-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2008-05-06 619-209-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2008-05-06 619-209-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2008-05-06 619-550-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNDG SNDG CA
2008-05-06 619-550-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNDG SNDG CA
2008-05-06 619-550-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNDG SNDG CA
2008-05-06 619-550-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2008-05-06 619-550-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2008-05-06 619-550-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2008-05-06 619-550-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2008-04-29 619-259-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C NATIONALCY CA
2008-04-29 619-537-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C CORONADO CA
2008-04-29 619-592-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2008-04-29 619-616-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2008-04-29 619-639-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LA MESA CA
2008-04-29 619-659-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C HARBSNALPN CA
2008-04-28 619-272-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SNDG SNDG CA
2008-04-24 619-550-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2008-04-24 619-550-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2008-04-04 619-592-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L EL CAJON CA
2008-04-03 619-630-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNDG SNDG CA
2008-03-24 619-272-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SNDG SNDG CA
2008-03-19 619-609-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2008-03-18 619-259-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NATIONALCY CA
2008-03-14 619-456-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L EL CAJON CA
2008-03-13 619-272-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNDG SNDG CA
2008-03-12 619-488-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2008-03-12 619-488-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2008-03-12 619-721-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2008-03-07 619-669-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2008-03-07 619-669-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2008-02-19 619-488-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2008-02-15 619-616-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2008-02-15 619-616-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2008-02-15 619-616-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2008-02-15 619-616-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2008-02-14 619-450-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2008-02-14 619-450-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2008-02-11 619-488-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J SNDG SNDG CA
2008-02-11 619-488-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J SNDG SNDG CA
2008-02-05 619-600-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2008-02-05 619-600-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2008-01-29 619-600-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2008-01-23 619-569-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON 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.