NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 213-797

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 213-797 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 213 blocks

Most active assignees, all time — NPA 213
ONVOY, LLC - CA 3
TELEPORT COMMUNICATIONS AMERICA, LLC - CA 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2
MCIMETRO ACCESS TRANSMISSION SERVICES 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2014-03-18 213-797-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LSAN DA 01 CA
2024-05-28 213-797-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LSAN DA 01 CA
2014-09-05 213-797-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LSAN DA 01 CA
— 213-797-3XXX 3000–3999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 LSAN DA 01 CA
2007-12-27 213-797-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LSAN DA 01 CA
2013-06-20 213-797-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LSAN DA 01 CA
2010-12-08 213-797-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LSAN DA 01 CA
2011-09-19 213-797-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LSAN DA 01 CA
2011-11-16 213-797-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C LSAN DA 01 CA
— 213-797-9XXX 9000–9999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 LSAN DA 01 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.