NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2004-07-06 619-335-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LA MESA CA
2004-07-02 619-781-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CHULAVISTA CA
2004-07-02 619-822-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNDG SNDG CA
2004-07-01 619-241-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2004-07-01 619-434-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L NATIONALCY CA
2004-06-28 619-241-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNDG SNDG CA
2004-06-24 619-312-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L EL CAJON CA
2004-06-22 619-245-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NATIONALCY CA
2004-06-16 619-243-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-06-16 619-278-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-06-16 619-402-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL CAJON CA
2004-06-16 619-757-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-06-10 619-825-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L LA MESA CA
2004-05-27 619-781-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-05-27 619-781-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-05-27 619-781-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-05-06 619-395-9XXX 9000–9999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2004-05-06 619-410-0XXX 0000–0999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2004-05-06 619-410-6XXX 6000–6999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2004-05-06 619-591-3XXX 3000–3999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2004-05-06 619-737-8XXX 8000–8999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2004-05-06 619-737-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CHULAVISTA CA
2004-04-28 619-794-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2004-04-27 619-213-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2004-04-27 619-213-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2004-04-27 619-863-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-04-27 619-916-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2004-04-27 619-916-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2004-04-15 619-328-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L EL CAJON CA
2004-04-13 619-852-0XXX 0000–0999Assigned METROPCS, INC. 5562 CHULAVISTA CA
2004-03-30 619-358-2XXX 2000–2999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2004-03-30 619-358-4XXX 4000–4999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2004-03-30 619-471-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-03-30 619-546-1XXX 1000–1999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2004-03-30 619-546-2XXX 2000–2999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2004-03-30 619-546-3XXX 3000–3999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2004-03-30 619-739-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-03-30 619-758-2XXX 2000–2999Assigned METROPCS, INC. 5562 SNDG SNDG CA
2004-03-30 619-770-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-03-29 619-773-4XXX 4000–4999Assigned METROPCS, INC. 5562 NATIONALCY CA
2004-03-26 619-407-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J CHULAVISTA CA
2004-03-25 619-471-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-03-25 619-471-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-03-25 619-471-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-03-25 619-471-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-03-25 619-546-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNDG SNDG CA
2004-03-15 619-268-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DULZURA CA
2004-03-15 619-320-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HARBSNALPN CA
2004-03-08 619-410-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-03-01 619-205-2XXX 2000–2999Assigned METROPCS, INC. 5562 CHULAVISTA CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.