DNSRegistration lookup
HOW THE INTERNET SEES A NETWORK

BGP looking glass.

Explore routing observations, origin networks and RPKI validation.

AS104

RIPE RIS
Retrieved · 2026-10-26T23:01:43+00:00Snapshot · 2026-10-26T08:00:00ZView JSON
Registration / WHOIS →

COLORADO-AS - University of Colorado at Boulder

IPv4 prefixes
21 (91,136 addresses)
IPv6 prefixes
4
Snapshot interval
8 hours
PrefixFamilyDetails
192.12.244.0/24IPv4WHOIS · Paths & RPKI →
198.59.54.0/24IPv4WHOIS · Paths & RPKI →
198.59.83.0/24IPv4WHOIS · Paths & RPKI →
198.59.51.0/24IPv4WHOIS · Paths & RPKI →
146.5.20.0/22IPv4WHOIS · Paths & RPKI →
198.59.7.0/24IPv4WHOIS · Paths & RPKI →
198.59.52.0/24IPv4WHOIS · Paths & RPKI →
192.12.238.0/24IPv4WHOIS · Paths & RPKI →
198.59.70.0/24IPv4WHOIS · Paths & RPKI →
129.19.240.0/20IPv4WHOIS · Paths & RPKI →
192.12.242.0/24IPv4WHOIS · Paths & RPKI →
129.19.192.0/18IPv4WHOIS · Paths & RPKI →
192.12.245.0/24IPv4WHOIS · Paths & RPKI →
198.59.82.0/24IPv4WHOIS · Paths & RPKI →
198.59.55.0/24IPv4WHOIS · Paths & RPKI →
204.228.80.0/24IPv4WHOIS · Paths & RPKI →
128.138.0.0/16IPv4WHOIS · Paths & RPKI →
198.59.81.0/24IPv4WHOIS · Paths & RPKI →
198.11.16.0/20IPv4WHOIS · Paths & RPKI →
192.12.241.0/24IPv4WHOIS · Paths & RPKI →
192.12.240.0/24IPv4WHOIS · Paths & RPKI →
2401:eee0:1c0::/42IPv6WHOIS · Paths & RPKI →
2620:18f::/32IPv6WHOIS · Paths & RPKI →
2401:eee0:200::/42IPv6WHOIS · Paths & RPKI →
2001:468:501::/48IPv6WHOIS · Paths & RPKI →

RIPEstat / RIS observations represent participating peers, not every router on the Internet. Collector processing and snapshots introduce a delay.