AS1221 Telstra Corporation Ltd
isp · based in Australia · IPLogs default verdict: Residential traffic
- ASN
- AS1221
- Name
- Telstra Corporation Ltd
- Category
- isp
- Country
- Australia
- IPLogs verdict
- Residential traffic
- Proxy backbone
- No
About Telstra Corporation Ltd
Telstra — largest Australian ISP and mobile carrier.
How IPLogs classifies AS1221
When the detection engine sees an IP that routes through AS1221, it checks three lists: (1) the curated VPN-provider ASN list, (2) the datacenter / hosting ASN list, and (3) the trusted CDN allowlist. Matches produce one of vpn_asn, dc_ip, or no flag respectively. Keywords in the org name (e.g. "vpn", "proxy", "anonym") may also trigger vpn_org_keyword even for unknown ASNs.
Use the ASN as a shortcut when you want to block a whole hosting provider at the edge rather than maintaining a per-IP list.
Authoritative sources for AS1221
Third-party registries where you can verify the announcements, peer relationships, and WHOIS registration for this ASN.
Related ASNs
Other isp ASNs in Australia catalogued by IPLogs.