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
2015-03-13 619-541-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-03-13 619-541-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-03-04 619-724-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2015-03-04 619-724-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2015-03-04 619-724-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2015-02-25 619-319-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CORONADO CA
2015-02-25 619-319-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CORONADO CA
2015-02-25 619-319-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CORONADO CA
2015-02-25 619-841-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CORONADO CA
2015-02-24 619-643-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-24 619-643-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-24 619-643-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-24 619-643-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-24 619-643-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-24 619-643-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-24 619-643-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-24 619-643-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-24 619-643-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-24 619-643-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-19 619-874-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2015-02-19 619-874-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2015-02-19 619-874-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2015-02-19 619-874-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2015-02-18 619-919-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2015-02-18 619-919-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2015-02-11 619-214-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2015-02-11 619-214-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2015-02-11 619-214-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2015-02-11 619-214-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2015-02-11 619-214-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2015-02-10 619-214-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-10 619-214-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-10 619-214-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-10 619-214-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-10 619-535-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-02-10 619-642-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2015-01-30 619-919-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2015-01-29 619-597-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LA MESA CA
2015-01-29 619-597-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LA MESA CA
2015-01-23 619-635-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2015-01-23 619-642-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2015-01-21 619-378-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CAMPO CA
2015-01-21 619-492-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DULZURA CA
2015-01-16 619-627-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E EL CAJON CA
2015-01-16 619-627-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E EL CAJON CA
2015-01-16 619-636-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2015-01-16 619-636-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2015-01-16 619-636-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2015-01-16 619-636-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2015-01-16 619-636-4XXX 4000–4999Assigned 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.