ResearchRouting table, RPKI, IRR & looking glass

AS23881 UDomain Web Hosting Company Ltd

AS23881 (UDOMAIN-AS-AP) is registered to UDomain Web Hosting Company Ltd in HK. It originates 73 prefixes in the global routing table.

71
IPv4 prefixes
2
IPv6 prefixes
18,176
IPv4 addresses
97%
RPKI valid

Who holds AS23881

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS23881
Handle
UDOMAIN-AS-AP
Organization
UDomain Web Hosting Company Ltd
Country
HK
ASPA
None published

What AS23881 announces

Prefixes originated by AS23881 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
71
IPv6 prefixes
2
IPv4 addresses
18,176 (71 /24s)
RPKI valid
71 97%
RPKI invalid
0
RPKI not found
2
ROAs naming AS23881
87
With an IRR route object
73 100%

Who AS23881 is reached through

The AS just before AS23881 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.