Optus IP Ranges
Optus is a consumer and business internet provider. Its network is registered under AS4804 with APNIC, and it announces 281 IPv4 prefixes to the global routing table.
- Provider
- Optus
- Primary ASN
- AS4804
- Category
- ISP
- Headquarters
- Sydney, Australia
- Announced IPv4 prefixes
- 281
- Registry
- APNIC
Known IP ranges
These prefixes are currently announced to the global routing table by AS4804 (MPX-AS - Microplex PTY LTD). Prefix sets change over time - use WHOIS Lookup for the authoritative record on any specific address.
49.176.0.0/12
175.32.0.0/13
58.104.0.0/13
122.104.0.0/13
49.192.0.0/13
114.72.0.0/14
220.236.0.0/14
211.28.0.0/14
1.40.0.0/14
110.20.0.0/14
2405:dc00:8000::/33
2405:dc00:ff::/48
2405:dc00:ec93::/48 (IPv6)
What does an Optus IP mean in a privacy test?
Seeing an Optus IP address as your visible address means you are connecting directly through your Optus line with no VPN active. If you expected a VPN exit, this tells you the tunnel is not carrying your traffic.
Related tools
Frequently asked questions
What IP ranges does Optus use?
Optus announces 281 IPv4 prefixes and 111 IPv6 prefixes under AS4804. Larger blocks include 49.176.0.0/12, 175.32.0.0/13, 58.104.0.0/13. The full current list is published by APNIC, and prefixes change as the network grows.
Why does an Optus IP appear in my privacy test?
Seeing an Optus IP address as your visible address means you are connecting directly through your Optus line with no VPN active. If you expected a VPN exit, this tells you the tunnel is not carrying your traffic.
How large is the Optus network?
AS4804 announces 281 IPv4 prefixes and 111 IPv6 prefixes. Registry data for the network is held by APNIC.
How do I look up an Optus IP address?
Enter the address in the MyIPScan IP Geolocation Lookup. Addresses in this network return AS4804 (MPX-AS - Microplex PTY LTD). WHOIS Lookup shows the registered CIDR block for any specific address.
What ASN does Optus use?
Optus operates AS4804, registered with APNIC and held by MPX-AS - Microplex PTY LTD. In a privacy test this ASN is what identifies traffic as belonging to their network.