AS16 — LBL

AS16 announces 4 IPv4 prefixes covering 131,076 addresses and 3 IPv6 prefixes.

About this network

An early allocation (LBL) belonging to Lawrence Berkeley National Laboratory, a US Department of Energy national lab in Berkeley, California.

What it's used for

• Scientific research networking for a DOE national laboratory.

Notable

• A US government research network, not a commercial ISP. A low AS number reflects an allocation from the internet's earliest years.

Interesting

• LBL was long a hub of networking and security research, including early work on packet monitoring and intrusion detection.

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

Announced prefixes

• 128.3.0.0/16
• 131.243.0.0/16
• 137.164.23.36/31
• 137.164.50.214/31
• 2607:f380:1::118:9a41:7240/123
• 2607:f380:1::118:9a43:2d60/123
• 2620:83:8000::/48

Upstream networks

• AS293 ESnet
• AS2152 CENIC
• AS2153 CENIC

Adjacent networks

• AS293 ESnet
• AS2152 CENIC
• AS2153 CENIC

Routing security

• RPKI: 0 valid, 0 invalid and 3 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 10 route objects.
• Listed in as-sets: AS-CALREN2, AS-HURRICANE, AS-HURRICANEV6, AS-TRANSROUTE-SPEC, AS293:AS-ESNET.