ResearchRouting table, RPKI, IRR & looking glass

AS23675 Taiwan Semiconductor Manufactoring Company, Ltd.

AS23675 (TSMCGDN-AS-AP) is registered to Taiwan Semiconductor Manufactoring Company, Ltd. in TW. It originates 19 prefixes in the global routing table.

19
IPv4 prefixes
0
IPv6 prefixes
4,864
IPv4 addresses
100%
RPKI valid

Who holds AS23675

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

AS number
AS23675
Handle
TSMCGDN-AS-AP
Organization
Taiwan Semiconductor Manufactoring Company, Ltd.
Country
TW
ASPA
None published

What AS23675 announces

Prefixes originated by AS23675 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
19
IPv6 prefixes
0
IPv4 addresses
4,864 (19 /24s)
RPKI valid
19 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS23675
9
With an IRR route object
19 100%

Who AS23675 is reached through

The AS just before AS23675 in the paths our looking glass collectors hold, for 19 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
APNICTSMCGDN-AS-APMAINT-TW-TWNIC

Route objects with origin AS23675: RADB 37 · ARIN 1

as-sets that list AS23675 (6)