ResearchRouting table, RPKI, IRR & looking glass

AS137918 CUHK Medical Centre Limited

AS137918 (CMCL-AS-AP) is registered to CUHK Medical Centre Limited in HK. It originates 2 prefixes in the global routing table.

2
IPv4 prefixes
0
IPv6 prefixes
512
IPv4 addresses
0%
RPKI valid

Who holds AS137918

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

AS number
AS137918
Handle
CMCL-AS-AP
Organization
CUHK Medical Centre Limited
Country
HK
ASPA
None published

What AS137918 announces

Prefixes originated by AS137918 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
2
IPv6 prefixes
0
IPv4 addresses
512 (2 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
2
ROAs naming AS137918
0
With an IRR route object
2 100%

Announced prefixes

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

IPv4 (2)

RPKI valid   RPKI invalid   no ROA covers it

Who AS137918 is reached through

The AS just before AS137918 in the paths our looking glass collectors hold, for 2 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
APNICCMCL-AS-APAPNIC-HM

Route objects with origin AS137918: NTTCOM 4 · RADB 4

as-sets that list AS137918 (5)