NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 323-767

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026

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

The ten 1,000-number thousand-blocks inside prefix 323-767 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 323 blocks

Most active assignees, all time — NPA 323
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 3
TELEPORT COMMUNICATIONS AMERICA, LLC - CA 2
T-MOBILE USA, INC. 2
TON80 COMMUNICATIONS, LLC 1
ONVOY, 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
2005-08-16 323-767-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C MONTEBELLO CA
— 323-767-1XXX 1000–1999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 MONTEBELLO CA
— 323-767-2XXX 2000–2999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 MONTEBELLO CA
2005-08-15 323-767-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MONTEBELLO CA
2005-08-15 323-767-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MONTEBELLO CA
2022-02-22 323-767-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J MONTEBELLO CA
2005-08-15 323-767-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MONTEBELLO CA
2005-10-11 323-767-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MONTEBELLO CA
2006-05-16 323-767-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MONTEBELLO CA
2006-06-22 323-767-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MONTEBELLO 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.