128.138.73.55 — Denver, Colorado, 🇺🇸 USA · AS104 COLORADO-AS
Search for
🌐
AS Numbers
🌐
AS Macros
Clear
🏠
AS Number Lookup
AS104
Prefixes of AS104
Prefix 2620:18f::/32
128.138.73.55
PTR
underling02.
colorado.edu
A record for
underling02.
colorado.edu
A
2620:18f:20:1031::55
A
128.138.73.55
IP numbers used in conjunction
100%
2620:18f:20:1031::55
🛡️
Is this IP blacklisted?
Check against 50+ spam databases
→
🌐
128.138.0.0/16
66K IPs · AS104 COLORADO-AS
→
🔧
AS104
COLORADO-AS autonomous system
→
Denver, Colorado, 🇺🇸 USA
🇺🇸
COLORADO-AS
128.138.0.0/16
University of Colorado Boulder
Courtesy of
PTR
A record for
IP numbers used in conjunction
