Home Prefix Lookup202.77.16.0/21

202.77.16.0/21 - BGP Prefix

IPv4APNICallocated RPKI Valid

CIDR

202.77.16.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇦🇺 Australia

City

Sydney

RIR

APNIC

Status

allocated

Allocated

1997-05-08

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

More-Specific Announcements

6 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
202.77.16.0/24	AS10099 UNICOM-GLOBAL China Unicom Global	Valid	-	2026-10-11
202.77.17.0/24	AS10099 UNICOM-GLOBAL China Unicom Global	Valid	-	2026-10-11
202.77.18.0/23	AS10099 UNICOM-GLOBAL China Unicom Global	Valid	-	2026-10-11
202.77.20.0/23	AS10099 UNICOM-GLOBAL China Unicom Global	Valid	-	2026-10-11
202.77.22.0/24	AS10099 UNICOM-GLOBAL China Unicom Global	Valid	-	2026-10-11
202.77.23.0/24	AS10099 UNICOM-GLOBAL China Unicom Global	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
202.77.16.0/21	AS10099	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS10099	APNIC	MAINT-HK-UNICOM	2015-11-13

More Specific Prefixes

Prefix	AS	Country	Status
202.77.16.0/24	AS10099	🇦🇺AU	assigned
202.77.17.0/24	AS10099	🇭🇰HK	assigned
202.77.18.0/23	AS10099	🇭🇰HK	assigned
202.77.20.0/22		🇭🇰HK	assigned

Transfer History

Registry transfers of 202.77.16.0/21, blocks inside it, or blocks containing it.

202.77.16.0/21Transfer · 2015-11-09
Hong Kong Broadband Network Limited
🇭🇰 HK APNIC
→
China Unicom (Hong Kong) Operations Limited
🇭🇰 HK APNIC
202.77.16.0/20Transfer · 2015-05-19
CHEVALIER ITECH LIMITED
🇭🇰 HK APNIC
→
Hong Kong Broadband Network Limited
🇭🇰 HK APNIC

Date	Resource	From	To	Type
2015-11-09	202.77.16.0/21	Hong Kong Broadband Network Limited 🇭🇰 HK APNIC	China Unicom (Hong Kong) Operations Limited 🇭🇰 HK APNIC	Transfer
2015-05-19	202.77.16.0/20	CHEVALIER ITECH LIMITED 🇭🇰 HK APNIC	Hong Kong Broadband Network Limited 🇭🇰 HK APNIC	Transfer

Geolocation

Country🇦🇺AustraliaAU

RegionNew South Wales

CitySydney

Coordinates-33.8688, 151.2090 ↗

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/202.77.16.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/202.77.16.0/21" | jq

External Links

RIPEstat