National Telecom / Pacific Backbone
Australia
AS1221 — Telstra Corporation
Australia's largest telecommunications and media company, providing fixed broadband, wireless 5G, and international subsea transit.
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Trace IP on Telstra Corporation
Test whether an IP address is routed through AS1221 (Telstra Corporation) or flagged as a VPN / Datacenter node:
Network Registry Specifications
Autonomous System Number:
AS1221 (1221)
Organization Name:
Telstra Global (Australia)
Country of Registration:
Australia
Network Classification:
National Telecom / Pacific Backbone
Peering & Exchange Policy:
Dominates Australian internet connectivity and operates multiple trans-Pacific subsea cables (Southern Cross Cable, INDIGO).
Sample IPv4 Prefixes
- 139.130.0.0/16
- 144.130.0.0/15
- 165.228.0.0/16
Sample IPv6 Prefixes
- 2001:8000::/19