ResearchRouting table, RPKI, IRR & looking glass

AS22855 Cardinal Health, Inc.

AS22855 (CARDINALHEALTH-AS01) is registered to Cardinal Health, Inc. in US. It originates 18 prefixes in the global routing table.

17
IPv4 prefixes
1
IPv6 prefixes
4,608
IPv4 addresses
100%
RPKI valid

Who holds AS22855

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

AS number
AS22855
Handle
CARDINALHEALTH-AS01
Organization
Cardinal Health, Inc.
Country
US
ASPA
None published

What AS22855 announces

Prefixes originated by AS22855 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
17
IPv6 prefixes
1
IPv4 addresses
4,608 (18 /24s)
RPKI valid
18 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS22855
6
With an IRR route object
0 0%

Announced prefixes

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

Who AS22855 is reached through

The AS just before AS22855 in the paths our looking glass collectors hold, for 18 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.

Route objects with origin AS22855: ARIN 6 · LEVEL3 2

as-sets that list AS22855 (2)