Home Prefix Lookup203.116.240.0/21

203.116.240.0/21 - StarHub (AS4657)

IPv4APNICannouncedAS4657STARHUB-INTERNET - StarHub Ltd RPKI Valid

CIDR

203.116.240.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇸🇬 Singapore

City

Singapore (Geylang)

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
203.116.240.0/21	AS4657 STARHUB-INTERNET - StarHub Ltd	Valid	APNIC	2026-10-12

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
203.116.0.0/16	AS4657 STARHUB-INTERNET - StarHub Ltd	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.116.0.0/16	AS4657	/24	apnic
203.116.0.0/16	AS38861	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS4657	APNIC	MAINT-AS4657-AP	2021-06-03
AS38861	APNIC	MAINT-AS4657-AP	2021-06-03

Origin ASN

AS4657

STARHUB-INTERNET - StarHub Ltd

Related Prefixes

Covering prefix

203.116.0.0/16AS4657

More prefixes of AS4657

All prefixes of AS4657 →

Geolocation

Country🇸🇬SingaporeSG

CitySingapore (Geylang)

Coordinates1.3244, 103.8930 ↗

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/203.116.240.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/203.116.240.0/21" | jq

External Links

RIPEstat