Home Prefix Lookup203.66.102.0/24

203.66.102.0/24 - TSMCGDN AP Taiwan Semiconductor Manufactoring Company (AS23675)

IPv4APNICannouncedAS23675TSMCGDN-AS-AP Taiwan Semiconductor Manufactoring Company, Ltd. RPKI Valid

CIDR

203.66.102.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇹🇼 Taiwan

City

Taipei

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
203.66.102.0/24	AS23675 TSMCGDN-AS-AP Taiwan Semiconductor Manufactoring Company, Ltd.	Valid	Other IRR	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
203.66.0.0/16	AS3462 HINET Data Communication Business Group	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.66.102.0/24	AS23675	/24	apnic
203.66.0.0/16	AS3462	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS23675	Other IRR	MAINT-AS3462	2023-11-13

Origin ASN

AS23675

TSMCGDN-AS-AP Taiwan Semiconductor Manufactoring Company, Ltd.

Related Prefixes

Covering prefix

203.66.0.0/16AS3462

More prefixes of AS23675

All prefixes of AS23675 →

Geolocation

Country🇹🇼TaiwanTW

RegionTaiwan

CityTaipei

Coordinates25.0501, 121.5650 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the APNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/203.66.102.0/24

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/203.66.102.0/24" | jq

External Links

RIPEstat