Home Prefix Lookup165.21.28.0/23

165.21.28.0/23 - SINGTEL FIBRE Singtel Fibre Broadband (AS9506)

IPv4APNICannouncedAS9506SINGTEL-FIBRE Singtel Fibre Broadband RPKI Valid

CIDR

165.21.28.0/23

IP Version

IPv4

Addresses

512

Mask

/23 (255.255.254.0)

Country

🇸🇬 Singapore

City

Singapore (Queenstown Estate)

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
165.21.28.0/23	AS9506 SINGTEL-FIBRE Singtel Fibre Broadband	Valid	APNICOther IRR	2026-10-11

Covering Prefix

2 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
165.21.0.0/16	AS3758 SINGNET SingNet	Valid	-	2026-10-11
165.21.24.0/21	AS9506 SINGTEL-FIBRE Singtel Fibre Broadband	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
165.21.28.0/23	AS9506	/23	apnic
165.21.24.0/21	AS9506	/21	apnic
165.21.0.0/16	AS3758	/24	apnic
165.21.0.0/16	AS19905	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS9506	APNIC	MAINT-SG-SINGNET	2019-10-24
AS3758	APNIC	MAINT-SG-SINGNET	2026-05-15
AS19905	APNIC	MAINT-SG-SINGNET	2024-08-23
AS9506	Other IRR	MAINT-AS3758	2023-11-13

Origin ASN

AS9506

SINGTEL-FIBRE Singtel Fibre Broadband

Related Prefixes

Covering prefix

165.21.24.0/21AS9506

More prefixes of AS9506

All prefixes of AS9506 →

Geolocation

Country🇸🇬SingaporeSG

CitySingapore (Queenstown Estate)

Coordinates1.2920, 103.8070 ↗

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/165.21.28.0/23

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

curl -s "https://api.ipctl.io/v1/prefix/165.21.28.0/23" | jq

External Links

RIPEstat