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
2019-04-17 619-782-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2019-04-17 619-915-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2019-04-12 619-439-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LA MESA CA
2019-04-12 619-492-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C DULZURA CA
2019-03-19 619-439-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2019-03-19 619-877-7XXX 7000–7999Assigned FRACTEL, LLC 965H SNDG MRMS CA
2019-03-19 619-932-7XXX 7000–7999Assigned FRACTEL, LLC 965H CHULAVISTA CA
2019-03-12 619-882-1XXX 1000–1999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2019-03-05 619-612-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C HARBSNALPN CA
2019-03-05 619-612-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C HARBSNALPN CA
2019-02-20 619-842-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PINEVALLEY CA
2019-02-20 619-842-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C PINEVALLEY CA
2019-02-19 619-802-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C NATIONALCY CA
2019-02-19 619-802-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C NATIONALCY CA
2019-02-19 619-900-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C NATIONALCY CA
2019-02-06 619-790-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PINEVALLEY CA
2019-02-06 619-790-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PINEVALLEY CA
2019-02-06 619-790-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PINEVALLEY CA
2019-02-06 619-790-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PINEVALLEY CA
2019-02-06 619-790-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PINEVALLEY CA
2019-02-06 619-790-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PINEVALLEY CA
2019-01-31 619-554-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CORONADO CA
2019-01-25 619-771-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LA MESA CA
2019-01-17 619-499-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2019-01-09 619-941-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2019-01-09 619-941-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2019-01-07 619-439-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2019-01-07 619-622-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2018-12-21 619-221-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2018-12-21 619-310-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2018-12-21 619-310-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2018-12-21 619-310-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2018-12-21 619-310-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2018-12-21 619-310-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2018-12-17 619-586-4XXX 4000–4999Assigned METROPCS, INC. 5562 NATIONALCY CA
2018-12-17 619-856-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L NATIONALCY CA
2018-12-17 619-856-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L NATIONALCY CA
2018-12-17 619-856-8XXX 8000–8999Assigned METROPCS, INC. 5562 NATIONALCY CA
2018-12-13 619-499-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L EL CAJON CA
2018-12-13 619-499-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L EL CAJON CA
2018-12-13 619-499-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L EL CAJON CA
2018-12-13 619-499-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L EL CAJON CA
2018-12-07 619-856-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2018-11-26 619-627-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2018-11-21 619-349-4XXX 4000–4999Assigned VONAGE AMERICA LLC 197D CHULAVISTA CA
2018-11-21 619-349-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D CHULAVISTA CA
2018-11-21 619-653-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D CHULAVISTA CA
2018-10-18 619-349-1XXX 1000–1999Assigned TELNYX LLC 073H CHULAVISTA CA
2018-10-18 619-396-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F EL CAJON CA
2018-10-18 619-790-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PINEVALLEY 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.