Data as of Nov 4, 2026

198.51.238.0/23

No anonymizer space · no proxy exits in 30 days

U.S. Department of Energy

Announcement

this exact prefix

No RPKI

Announced by

Type

Business

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
198.51.238.0/24	256	DOEAL	U.S. Department of Energy (UDE-4-Z) · US	Direct Allocation	Feb 11, 1993	[email protected]
198.51.239.0/24	256	DOEAL-2	U.S. Department of Energy (UDE-4-Z) · US	Direct Allocation	Feb 11, 1993	[email protected]

Registry

Origin network

Name: U.S. Department of Energy
Type: Business
Registered: Apr 1, 2009
Domain: energy.gov
Industry: Government and Regulatory Agencies, Administrations, Departments, and Services
Spamhaus ASN-DROP: not listed