AS13501 — OARNET-AS-2

AS13501 announces 5 IPv4 prefixes covering 1,536 addresses and 0 IPv6 prefixes.

About this network

A switch that names its own link speed, and a supercomputer centre's development database answering in public DNS.

What it's used for

• A state research and education network. 1,536 addresses across five IPv4 prefixes, two observed BGP neighbours, and no IPv6 announced.

Notable

• Four prefixes are netname OAR-BLK4, registered to the network with an operations centre contact.
• 192.157.5.0/24 is netname OSC2, registered to a supercomputer centre.
• One sampled address answers as spine-800g-02-vlan100-v0.infra.osc.edu.
• Another answers as c4n-db-dev.hpc.osc.edu.
• First seen in the routing archive on 2001-06-28, an actual date rather than the archive's start.

Interesting

• That first name is a full equipment description: the switch's role in the fabric, its port speed in gigabits, which unit it is, and the virtual network the address belongs to. Research networks name devices for the operators who work on them, and the result is a public inventory of the hardware.
• The second name marks a development database on the high performance computing side. Development systems reachable by name from outside are ordinary in research computing and would be a finding anywhere else.
• A research network announcing a supercomputer centre's own block is the usual division: the network carries the routes, the centre keeps its own registry record and its own naming.

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

Announced prefixes

• 192.148.240.0/24
• 192.148.247.0/24
• 192.148.248.0/23
• 192.148.250.0/24
• 192.157.5.0/24

Upstream networks

• AS600 OARnet
• AS3112 OARnet

Adjacent networks

• AS600 OARnet
• AS3112 OARnet