AS43 — BNL-AS

AS43 announces 5 IPv4 prefixes covering 66,560 addresses and 3 IPv6 prefixes.

About this network

An early low-numbered allocation (BNL-AS) serving Brookhaven National Laboratory, a US Department of Energy national laboratory in Upton, New York.

What it's used for

• Scientific, research, and operational networking for a DOE national lab.

Notable

• A US government / national-lab network, not a commercial ISP or host.
• The low AS number reflects an allocation from the internet's earliest years.

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

Announced prefixes

• 130.199.0.0/16
• 192.12.15.0/24
• 192.33.128.0/24
• 192.153.161.0/24
• 192.203.218.0/24
• 2620:0:210::/48
• 2620:10a::/44
• 2620:12f:f000::/44

Upstream networks

• AS293 ESnet

Adjacent networks

• AS293 ESnet

Routing security

• RPKI: 1 valid, 0 invalid and 7 not-found announcements; 1 ROAs.
• ASPA: 1 authorised providers.
• IRR: 100% of announcements registered; 8 route objects.
• Listed in as-sets: AS-BUSINESS-AUTOMATION-TECHNOLOGIES-CUSTOMERS, AS-CV, AS-DNETIT, AS-HURRICANE, AS-HURRICANEV6, AS-TRANSROUTE-SPEC, AS-XO-B, AS20965:AS-FROM-TEIN-TO-GEANT, AS293:AS-ESNET.