⌂ IP Address Info - 128.2.221.17

Tools:

Subnet:

Reverse DNS (PTR):

relab.cs.cmu.edu

Reverse DNS Zone:

221.2.128.in-addr.arpa

Authoritative NS:

nsauth-ib1.net.cmu.edu [128.2.1.30]
nsauth-ib2.net.cmu.edu [128.237.148.161]

Names that resolve
to this address:
(3)

gaius.isri.cmu.edu
opi.cs.cmu.edu
relab.cs.cmu.edu

Last crawled:

2025-12-17 08:13:23 +0000