AS20137 — USAGM-LAN

AS20137 announces 4 IPv4 prefixes covering 1,536 addresses and 0 IPv6 prefixes.

About this network

USAGM-LAN is operated by U.S. Agency for Global Media.

What it's used for

• The address space carries internal government network traffic, evidenced by netnames and registrants consistently identified as USAGM.
• The AS announces 1536 IPv4 addresses across 4 prefixes with 3 observed neighbours, indicating a small, self-contained internal estate rather than a transit or access network.

Notable

• All registrants for the announced prefixes match the announcer, with USAGM listed as the registrant for every block.
• The agency was formerly known as the Broadcasting Board of Governors (BBG) until 2018.
• The inventory consists of four contiguous IPv4 prefixes within the 152.75.0.0/16 range, with no IPv6 prefixes announced.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 152.75.128.0/23
• 152.75.250.0/24
• 152.75.252.0/23
• 152.75.254.0/24

Upstream networks

• AS33657 Comcast Cable Communications, LLC
• AS7018 AT&T Enterprises, LLC
• AS3356 Level 3 Parent, LLC

Adjacent networks

• AS33657 Comcast Cable Communications, LLC
• AS7018 AT&T Enterprises, LLC
• AS3356 Level 3 Parent, LLC

Routing security

• RPKI: 0 valid, 0 invalid and 6 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.