ResearchRouting table, RPKI, IRR & looking glass

AS41230 ASK4 Limited

AS41230 (ASK4) is registered to ASK4 Limited in GB. It originates 23 prefixes in the global routing table.

16
IPv4 prefixes
7
IPv6 prefixes
88,320
IPv4 addresses
100%
RPKI valid

Who holds AS41230

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

AS number
AS41230
Handle
ASK4
Organization
ASK4 Limited
Country
GB
ASPA
None published

What AS41230 announces

Prefixes originated by AS41230 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
16
IPv6 prefixes
7
IPv4 addresses
88,320 (345 /24s)
RPKI valid
23 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS41230
26
With an IRR route object
18 78%

Who AS41230 is reached through

The AS just before AS41230 in the paths our looking glass collectors hold, for 23 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.