Autonomous System Overview

AS1221: Telstra Corporation

Australia's largest telecommunications carrier providing nationwide fiber, NBN retail broadband, and mobile connectivity.

Network Specification & Registry DataActive / Announced

Autonomous System (ASN)

AS1221

Organization / Holder

Telstra Corporation Ltd

Registry (RIR)

APNIC

Traffic Classification

Transit / ISP

Registered Country

Australia (AU)

Estimated IP Pool

14,000,000+

Announced IP Subnet Ranges (CIDR Prefixes)

The following sample CIDR routing prefixes are advertised and routed by AS1221 across global BGP border tables:

120.144.0.0/12

139.130.0.0/16

144.130.0.0/15