ResearchRouting table, RPKI, IRR & looking glass

AS4195 D. E. Shaw & Co. LP

AS4195 (SHAW) is registered to D. E. Shaw & Co. LP in US. It originates 21 prefixes in the global routing table.

21
IPv4 prefixes
0
IPv6 prefixes
70,144
IPv4 addresses
9%
RPKI valid

Who holds AS4195

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

AS number
AS4195
Handle
SHAW
Organization
D. E. Shaw & Co. LP
Country
US
ASPA
None published

What AS4195 announces

Prefixes originated by AS4195 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
21
IPv6 prefixes
0
IPv4 addresses
70,144 (274 /24s)
RPKI valid
2 9%
RPKI invalid
0
RPKI not found
19
ROAs naming AS4195
2
With an IRR route object
10 47%

Who AS4195 is reached through

The AS just before AS4195 in the paths our looking glass collectors hold, for 21 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.