AS4804 — Optus (Microplex)
- Organization
- MPX-AS - Microplex PTY LTD
- ASN
- AS4804
- Country
- Australia
- Category
- ISP
- Announced IPv4 prefixes
- 281
- Announced IPv6 prefixes
- 111
- Registry
- APNIC
What is AS4804 — Optus (Microplex)?
AS4804 is the autonomous system operated by Optus (Microplex), registered with APNIC. It currently announces 281 IPv4 prefixes and 111 IPv6 prefixes to the global routing table. Addresses in this network belong to residential and mobile subscribers, so seeing AS4804 in a lookup means the connection is a consumer line rather than a data center.
Check IPs in AS4804 with MyIPScan tools
Frequently asked questions about AS4804
Who owns AS4804?
AS4804 is held by Optus (Microplex) according to APNIC registry records. The registered holder name is MPX-AS - Microplex PTY LTD.
Why does AS4804 appear in my VPN test?
If AS4804 shows as your visible ASN while a VPN is connected, the tunnel is not carrying your traffic and your real Optus (Microplex) connection is exposed to websites.
How large is the AS4804 network?
AS4804 announces 281 IPv4 prefixes and 111 IPv6 prefixes. Larger blocks include 49.176.0.0/12, 175.32.0.0/13, 58.104.0.0/13.
How do I investigate IPs in AS4804?
Use the MyIPScan IP Geolocation Lookup to resolve any address to its ASN and location, and WHOIS Lookup for the registered CIDR block. Addresses in this network return AS4804 (MPX-AS - Microplex PTY LTD).