Home Prefix Lookup221.121.128.0/21

221.121.128.0/21 - BGP Prefix

IPv4APNICassigned RPKI Valid

CIDR

221.121.128.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇦🇺 Australia

City

Sydney

RIR

APNIC

Status

assigned

Allocated

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

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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.

Related Announcements

1 less-specific, 3 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
221.121.128.0/19	AS45671 AS45671-NET-AU - Wholesale Services Provider	Valid	-	2026-10-12
221.121.133.0/24	AS45671 AS45671-NET-AU - Wholesale Services Provider	Valid	-	2026-10-12
221.121.134.0/24	AS45671 AS45671-NET-AU - Wholesale Services Provider	Valid	-	2026-10-12
221.121.135.0/24	AS45671 AS45671-NET-AU - Wholesale Services Provider	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
221.121.128.0/19	AS45671	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS45671	APNIC	MAINT-SAU-NET-AU	2020-09-14

Transfer History

Registry transfers of 221.121.128.0/21, blocks inside it, or blocks containing it.

221.121.128.0/19Transfer · 2014-07-14
Enterprise IT (AUST) Pty Limited
🇦🇺 AU APNIC
→
Servers Australia Pty. Ltd
🇦🇺 AU APNIC
221.121.128.0/19Transfer · 2011-06-07
Fortana Networks Australia Pty Ltd
🇦🇺 AU APNIC
→
Enterprise IT (AUST) Pty Limited
🇦🇺 AU APNIC

Date	Resource	From	To	Type
2014-07-14	221.121.128.0/19	Enterprise IT (AUST) Pty Limited 🇦🇺 AU APNIC	Servers Australia Pty. Ltd 🇦🇺 AU APNIC	Transfer
2011-06-07	221.121.128.0/19	Fortana Networks Australia Pty Ltd 🇦🇺 AU APNIC	Enterprise IT (AUST) Pty Limited 🇦🇺 AU APNIC	Transfer

Related Prefixes

Covering prefix

221.121.128.0/19AS45671

Geolocation

Country🇦🇺AustraliaAU

CitySydney

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/221.121.128.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/221.121.128.0/21" | jq

External Links

RIPEstat