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
2014-11-10 619-551-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2014-11-10 619-598-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2014-11-10 619-882-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2014-11-04 619-551-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CHULAVISTA CA
2014-10-31 619-432-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNDG SNDG CA
2014-10-30 619-597-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2014-10-30 619-597-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2014-10-29 619-396-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2014-10-29 619-396-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2014-10-28 619-432-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2014-10-28 619-432-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2014-10-28 619-586-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C NATIONALCY CA
2014-10-28 619-586-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C NATIONALCY CA
2014-10-28 619-919-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NATIONALCY CA
2014-10-21 619-396-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2014-10-21 619-396-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2014-10-21 619-396-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2014-10-21 619-536-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL CAJON CA
2014-10-21 619-551-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2014-10-21 619-551-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHULAVISTA CA
2014-10-20 619-432-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2014-10-20 619-432-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2014-10-20 619-598-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2014-10-17 619-415-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LA MESA CA
2014-10-17 619-586-0XXX 0000–0999Assigned METROPCS, INC. 5562 NATIONALCY CA
2014-10-17 619-586-1XXX 1000–1999Assigned METROPCS, INC. 5562 NATIONALCY CA
2014-10-17 619-586-2XXX 2000–2999Assigned METROPCS, INC. 5562 NATIONALCY CA
2014-10-17 619-586-3XXX 3000–3999Assigned METROPCS, INC. 5562 NATIONALCY CA
2014-10-17 619-586-9XXX 9000–9999Assigned METROPCS, INC. 5562 NATIONALCY CA
2014-10-17 619-928-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LA MESA CA
2014-10-16 619-551-0XXX 0000–0999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2014-10-16 619-551-1XXX 1000–1999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2014-10-16 619-551-2XXX 2000–2999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2014-10-16 619-551-9XXX 9000–9999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2014-10-14 619-396-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL CAJON CA
2014-10-14 619-396-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL CAJON CA
2014-10-13 619-385-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-10-13 619-385-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-10-13 619-385-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-10-13 619-385-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-10-13 619-385-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-10-13 619-385-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-10-13 619-385-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-10-13 619-385-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-10-13 619-385-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-10-13 619-385-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-10-08 619-313-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CORONADO CA
2014-10-08 619-313-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CORONADO CA
2014-10-03 619-215-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CORONADO CA
2014-10-03 619-824-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C CAMPO 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.