AS3443 — ESNET-AS

AS3443 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

An Energy Sciences Network (ESNET-AS) autonomous system, announcing a single small prefix. ESnet is the US Department of Energy's high-performance network for its national laboratories and science facilities.

What it's used for

• DOE research networking. This AS number carries a minimal footprint, the kind typically used for a specific site or function rather than a broad backbone role.

Notable

• Government research address space, tied to the DOE laboratory complex rather than to any commercial service.
• Other ESnet AS numbers nearby: AS3425, AS3428, and AS3431.

Interesting

• Very small announced footprints on legacy AS numbers are common: the number was allocated when policy was loose, and the network kept it even as its actual routing consolidated elsewhere.

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

Announced prefixes

• 192.188.22.0/24

Upstream networks

• AS293 ESnet

Adjacent networks

• AS293 ESnet

Routing security

• RPKI: 1 valid, 0 invalid and 0 not-found announcements; 2 ROAs.
• ASPA: 1 authorised providers.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-HURRICANE, AS-TRANSROUTE-SPEC, AS293:AS-ESNET.