Home Prefix Lookup2001:4540::/27

2001:4540::/27 - TFN TW Taiwan Fixed Network, Telco And Network Service Provider (AS9924)

IPv6APNICallocatedAS9924TFN-TW Taiwan Fixed Network, Telco and Network Service Provider. RPKI Valid

CIDR

2001:4540::/27

IP Version

IPv6

Addresses

2535301.2Y

Mask

/27

Country

🇹🇼 Taiwan

City

Xiatayou

RIR

APNIC

Status

allocated

Allocated

2005-12-22

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
2001:4540::/27	AS9924 TFN-TW Taiwan Fixed Network, Telco and Network Service Provider.	Valid	Other IRR	2026-10-11

More-Specific Announcements

8 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
2001:4541:9000::/36	AS9924 TFN-TW Taiwan Fixed Network, Telco and Network Service Provider.	Valid	-	2026-10-11
2001:4546:1001::/48	AS9924 TFN-TW Taiwan Fixed Network, Telco and Network Service Provider.	Valid	-	2026-10-11
2001:4546:1002::/48	AS9924 TFN-TW Taiwan Fixed Network, Telco and Network Service Provider.	Valid	-	2026-10-11
2001:4546:1003::/48	AS20940 AKAMAI-ASN1 Akamai International B.V.	Valid	-	2026-10-11
2001:454c::/32	AS9924 TFN-TW Taiwan Fixed Network, Telco and Network Service Provider.	Valid	-	2026-10-11
2001:454e::/32	AS9924 TFN-TW Taiwan Fixed Network, Telco and Network Service Provider.	Valid	-	2026-10-11
2001:454e:aab0::/48	AS9924 TFN-TW Taiwan Fixed Network, Telco and Network Service Provider.	Valid	-	2026-10-11
2001:454e:c010::/48	AS9924 TFN-TW Taiwan Fixed Network, Telco and Network Service Provider.	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
2001:4540::/27	AS9924	/64	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS9924	Other IRR	MAINT-AS9924	2026-04-17

Origin ASN

AS9924

TFN-TW Taiwan Fixed Network, Telco and Network Service Provider.

Related Prefixes

More prefixes of AS9924

All prefixes of AS9924 →

Geolocation

Country🇹🇼TaiwanTW

RegionTaiwan

CityXiatayou

Coordinates25.0788, 121.5690 ↗

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/2001:4540::/27

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

curl -s "https://api.ipctl.io/v1/prefix/2001:4540::/27" | jq

External Links

RIPEstat