Home Prefix Lookup203.71.136.0/22

203.71.136.0/22 - ERX TANET ASN1 Taiwan Academic Network TANet Information Center (AS1659)

IPv4APNICannouncedAS1659ERX-TANET-ASN1 Taiwan Academic Network TANet Information Center RPKI Valid

CIDR

203.71.136.0/22

IP Version

IPv4

Addresses

Mask

/22 (255.255.252.0)

Country

🇹🇼 Taiwan

City

Buzi

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
203.71.136.0/22	AS1659 ERX-TANET-ASN1 Taiwan Academic Network TANet Information Center	Valid	-	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
203.71.0.0/16	AS1659 ERX-TANET-ASN1 Taiwan Academic Network TANet Information Center	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.71.136.0/22	AS1659	/22	apnic
203.71.0.0/16	AS1659	/16	apnic

Origin ASN

AS1659

ERX-TANET-ASN1 Taiwan Academic Network TANet Information Center

Related Prefixes

Covering prefix

203.71.0.0/16AS1659

More prefixes of AS1659

All prefixes of AS1659 →

Geolocation

Country🇹🇼TaiwanTW

RegionTaiwan

CityBuzi

Coordinates24.1471, 120.6080 ↗

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/203.71.136.0/22

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

curl -s "https://api.ipctl.io/v1/prefix/203.71.136.0/22" | jq

External Links

RIPEstat