NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 619-373

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 619-373 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 619 blocks

Most active assignees, all time — NPA 619
T-MOBILE USA, INC. 3
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2
TELNYX LLC 1
LEVEL 3 COMMUNICATIONS, LLC - 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
2017-03-14 619-373-0XXX 0000–0999Assigned TELNYX LLC 073H CHULAVISTA CA
2013-06-07 619-373-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CHULAVISTA CA
2013-08-08 619-373-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2013-06-26 619-373-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2013-08-08 619-373-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHULAVISTA CA
2013-09-05 619-373-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2013-05-24 619-373-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHULAVISTA CA
2013-01-31 619-373-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHULAVISTA CA
2013-04-03 619-373-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CHULAVISTA CA
2013-04-03 619-373-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F 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.