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AS1221 - Telstra Limited

AS1221 is AS block owned by Telstra Limited. Each AS number is unique, identifies the organization or ISP and may contain one or more IP ranges, whether it is an IPv4 or IPv6 range. Here, on this page, you will be able to find more details about your request for autonomous system number AS1221 from TELSTRA regarding IPv4 and IPv6 addresses in CIDR range format.

Our lookup has found the following record information for AS1221 belonging to Telstra Limited organization.

IPv4 CIDR Range:

Total 271 IPv4 CIDR ranges found.

IPv6 CIDR Range:


Total 3 IPv6 CIDR ranges found.

The total number of combined IPv4 and IPv6 CIDR ranges for AS1221 is 274.

For detailed information about the owner of AS block TELSTRA - Telstra Limited, please check Whois TELSTRA - Telstra Limited organization that owns ASN - Autonomous System Number block - AS1221.

How to lookup ASN IP?

- To lookup ASN IP use the form below with value 'ASN lookup'.
- Then enter the AS number in 'AS' format followed by numbers
ASN1221 last updated: 16 May, 2024 00:56:49.

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