NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 916-238

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 916-238 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 916 blocks

Most active assignees, all time — NPA 916
BANDWIDTH.COM CLEC, LLC - CA 5
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
TELEPORT COMMUNICATIONS AMERICA, LLC - CA 1
LEVEL 3 COMMUNICATIONS, LLC - CA 1
FIDIUM ENTERPRISE SERVICES, LLC 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
2015-05-27 916-238-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIO LINDA CA
2005-10-03 916-238-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 RIO LINDA CA
2002-10-29 916-238-2XXX 2000–2999Assigned FIDIUM ENTERPRISE SERVICES, LLC 3964 RIO LINDA CA
2015-05-27 916-238-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIO LINDA CA
2006-07-19 916-238-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L RIO LINDA CA
2010-09-03 916-238-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIO LINDA CA
2015-05-27 916-238-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIO LINDA CA
2008-06-24 916-238-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J RIO LINDA CA
2012-03-21 916-238-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIO LINDA CA
— 916-238-9XXX 9000–9999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 RIO LINDA 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.