ResearchRouting table, RPKI, IRR & looking glass

AS40443 CDK Global, LLC

AS40443 (CDK-GLOBAL) is registered to CDK Global, LLC in US. It originates 20 prefixes in the global routing table.

20
IPv4 prefixes
0
IPv6 prefixes
21,248
IPv4 addresses
5%
RPKI valid
Registration

Who holds AS40443

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

AS number
AS40443
Handle
CDK-GLOBAL
Organization
CDK Global, LLC
Country
US
ASPA
None published
Routing

What AS40443 announces

Prefixes originated by AS40443 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
20
IPv6 prefixes
0
IPv4 addresses
21,248 (83 /24s)
RPKI valid
1 5%
RPKI invalid
0
RPKI not found
19
ROAs naming AS40443
1
With an IRR route object
16 80%
Prefixes

Announced prefixes

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

IPv4 (20)
65.59.112.0/24192.110.64.0/20192.110.75.0/24198.133.214.0/24206.22.222.0/24207.186.140.0/24207.186.141.0/24207.186.144.0/21207.186.159.0/24207.186.160.0/21207.186.161.0/24207.186.175.0/24207.186.184.0/21207.186.184.0/24207.186.224.0/20207.187.140.0/24207.187.141.0/24207.187.224.0/20216.231.224.0/24216.231.228.0/24

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS40443 is reached through

The AS just before AS40443 in the paths our looking glass collectors hold, for 20 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS174 COGENT-174 20AS3356 LEVEL3 11AS6461 ZAYO-6461 9
IRR

Routing registry objects

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

Route objects with origin AS40443: RADB 56 · LEVEL3 20

as-sets that list AS40443 (4)
AS-AS22911AS-AS23005AS-LUMEN-CUSTOMERS-ASNSAS-PNAPCHG
Tools

Check AS40443 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup