ResearchRouting table, RPKI, IRR & looking glass

AS131591 Ambit Microsystem Corporation

AS131591 (AMBIT-AS-TW) is registered to Ambit Microsystem Corporation in TW. It originates 33 prefixes in the global routing table.

33
IPv4 prefixes
0
IPv6 prefixes
127,488
IPv4 addresses
100%
RPKI valid

Who holds AS131591

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

AS number
AS131591
Handle
AMBIT-AS-TW
Organization
Ambit Microsystem Corporation
Country
TW
ASPA
None published

What AS131591 announces

Prefixes originated by AS131591 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
33
IPv6 prefixes
0
IPv4 addresses
127,488 (498 /24s)
RPKI valid
33 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS131591
10
With an IRR route object
33 100%

Who AS131591 is reached through

The AS just before AS131591 in the paths our looking glass collectors hold, for 33 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
APNICAMBIT-AS-TWMAINT-TW-TWNIC
RADBGT4G-NETMAINT-AS17709

Route objects with origin AS131591: RADB 2,204 · NTTCOM 2,068 · LEVEL3 53

as-sets that list AS131591 (12)