ResearchRouting table, RPKI, IRR & looking glass

AS3661 The Chinese University of Hong Kong

AS3661 (ERX-CUHKNET) is registered to The Chinese University of Hong Kong in HK. It originates 9 prefixes in the global routing table.

7
IPv4 prefixes
2
IPv6 prefixes
73,984
IPv4 addresses
0%
RPKI valid

Who holds AS3661

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

AS number
AS3661
Handle
ERX-CUHKNET
Organization
The Chinese University of Hong Kong
Country
HK
ASPA
None published

What AS3661 announces

Prefixes originated by AS3661 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
7
IPv6 prefixes
2
IPv4 addresses
73,984 (289 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
9
ROAs naming AS3661
1
With an IRR route object
8 88%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

Who AS3661 is reached through

The AS just before AS3661 in the paths our looking glass collectors hold, for 9 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.