ASN Lookup – Networks, Upstreams and Prefixes

AS1221

ASN

APNIC

RIR

283

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS1221

NameASN-TELSTRA

OrganisationTelstra Limited

Country

RIRAPNIC

Allocated04.09.2008

Abuse contactabuse@telstra.net

Network Overview

IPv4 Prefixes283

IPv6 Prefixes3

Upstreams IPv40

BGP Peers IPv40

IPv4 Prefixes (283 total, showing 20)

203.21.57.0/24

203.21.199.0/24

203.35.0.0/16

203.55.180.0/24

203.21.55.0/24

203.21.52.0/24

203.22.150.0/24

203.17.162.0/24

144.130.160.0/19

203.30.92.0/22

203.21.198.0/24

192.195.197.0/24

143.238.0.0/16

149.176.244.0/24

203.23.75.0/24

66.111.168.0/24

203.21.194.0/24

192.74.144.0/20

203.30.64.0/24

120.156.0.0/15

IPv6 Prefixes (3 total)

2001:8000::/20

2401:a480::/48

2403:580f:5973::/48

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What is an ASN?

An Autonomous System Number (ASN) is a unique number assigned to a network on the internet. Upstreams are the transit providers through which the AS reaches the internet. Peers are networks with which direct traffic exchange takes place. Prefixes are the IP address ranges that the AS announces to the internet. Data via RIPE NCC RDAP and RIPEstat API.