Home Prefix Lookup203.17.40.0/22

203.17.40.0/22 - BGP Prefix

IPv4APNICassigned RPKI Valid

CIDR

203.17.40.0/22

IP Version

IPv4

Addresses

Mask

/22 (255.255.252.0)

Country

🇦🇺 Australia

City

Sydney

RIR

APNIC

Status

assigned

Allocated

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 currently announced in BGP. See covering prefix below.

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
203.17.40.0/21	AS1221 ASN-TELSTRA - Telstra Limited	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.17.40.0/21	AS1221	/21	apnic

More Specific Prefixes

Prefix	Country	Status
203.17.40.152/29	🇦🇺AU	assigned
203.17.40.208/29	🇦🇺AU	assigned
203.17.41.64/28	🇦🇺AU	assigned
203.17.41.80/29	🇦🇺AU	assigned
203.17.41.88/29	🇦🇺AU	assigned
203.17.41.96/28	🇦🇺AU	assigned
203.17.41.112/29	🇦🇺AU	assigned

Transfer History

Registry transfers of 203.17.40.0/22, blocks inside it, or blocks containing it.

203.17.40.0/21Transfer · 2020-12-15
Telstra International Limited
🇭🇰 HK APNIC
→
Telstra Limited
🇦🇺 AU APNIC

Date	Resource	From	To	Type
2020-12-15	203.17.40.0/21	Telstra International Limited 🇭🇰 HK APNIC	Telstra Limited 🇦🇺 AU APNIC	Transfer

Related Prefixes

Covering prefix

203.17.40.0/21AS1221

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/203.17.40.0/22

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

curl -s "https://api.ipctl.io/v1/prefix/203.17.40.0/22" | jq

External Links

RIPEstat