ResearchRouting table, RPKI, IRR & looking glass

AS45133 Singapore Polytechnic

AS45133 (Singapore-Polytechnic-AS-AP) is registered to Singapore Polytechnic in SG. It originates 4 prefixes in the global routing table.

3
IPv4 prefixes
1
IPv6 prefixes
65,536
IPv4 addresses
0%
RPKI valid

Who holds AS45133

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

AS number
AS45133
Handle
Singapore-Polytechnic-AS-AP
Organization
Singapore Polytechnic
Country
SG
ASPA
None published

What AS45133 announces

Prefixes originated by AS45133 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
3
IPv6 prefixes
1
IPv4 addresses
65,536 (256 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
4
ROAs naming AS45133
0
With an IRR route object
3 75%

Announced prefixes

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

IPv4 (3)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS45133 is reached through

The AS just before AS45133 in the paths our looking glass collectors hold, for 4 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.