ResearchRouting table, RPKI, IRR & looking glass

AS131 University of California, Santa Barbara

AS131 (UCSB-NET-AS) is registered to University of California, Santa Barbara in US. It originates 6 prefixes in the global routing table.

5
IPv4 prefixes
1
IPv6 prefixes
132,096
IPv4 addresses
0%
RPKI valid

Who holds AS131

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

AS number
AS131
Handle
UCSB-NET-AS
Organization
University of California, Santa Barbara
Country
US
ASPA
None published

What AS131 announces

Prefixes originated by AS131 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
5
IPv6 prefixes
1
IPv4 addresses
132,096 (516 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
6
ROAs naming AS131
0
With an IRR route object
6 100%

Announced prefixes

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

IPv4 (5)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS131 is reached through

The AS just before AS131 in the paths our looking glass collectors hold, for 6 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.

Sourceas-nameMaintained by
RADBUCSB-NET-ASMAINT-AS131

Route objects with origin AS131: RADB 8

as-sets that list AS131 (5)