Home Prefix Lookup203.66.0.0/16

203.66.0.0/16 - HINET Data Communication Business Group (AS3462)

IPv4APNICallocatedAS3462HINET Data Communication Business Group RPKI Valid

CIDR

203.66.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇹🇼 Taiwan

City

Taipei

RIR

APNIC

Status

allocated

Allocated

1994-12-14

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

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

More-Specific Announcements

5 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
203.66.100.0/24	AS23675 TSMCGDN-AS-AP Taiwan Semiconductor Manufactoring Company, Ltd.	Valid	-	2026-10-11
203.66.101.0/24	AS23675 TSMCGDN-AS-AP Taiwan Semiconductor Manufactoring Company, Ltd.	Valid	-	2026-10-11
203.66.102.0/24	AS23675 TSMCGDN-AS-AP Taiwan Semiconductor Manufactoring Company, Ltd.	Valid	-	2026-10-11
203.66.151.0/24	AS9678 HOSTINGINSIDE-INTL HostingInside LTD	Valid	-	2026-10-11
203.66.245.0/24	AS23675 TSMCGDN-AS-AP Taiwan Semiconductor Manufactoring Company, Ltd.	Valid	-	2026-10-11

RPKI ROAs

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

IRR Route Objects

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

More Specific Prefixes

Prefix	AS	Country	Status
203.66.136.224/27		🇹🇼TW	assigned

Origin ASN

AS3462

HINET Data Communication Business Group

Related Prefixes

More prefixes of AS3462

All prefixes of AS3462 →

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/203.66.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/203.66.0.0/16" | jq

External Links

RIPEstat