Data as of Nov 3, 2026
211.28.4.0/24
No anonymizer space · no proxy exits in 30 daysMicroplex PTY LTD · space held by Optus Internet Pty Ltd
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 211.28.0.0/14 since May 2005 | AS4804 | Residential | 3,055 3 always on | Optus Internet Pty Ltd |
Network & registry
Announced by
Covering announcement 211.28.4.0/22
- Prefix
- 211.28.4.0/22
- Announced by
- AS4804 Microplex PTY LTD
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- OPTUSINTERNET-AU
- Registrant
- Optus Internet Pty Ltd
- RIR
- APNIC
Origin network
AS4804
AU
- Name
- Microplex PTY LTD
- Type
- Internet provider
- Registered
- Nov 7, 1996
- Domain
- optus.com.au
- Website
- optus.com.au
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
211.28.4.0/22
Routing history
- Pattern
- Stable
- First seen
- Jul 2025
- Current origin since
- Jul 2025 · 1.3 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 211.28.4.0/22 | AS4804 | /22 | APNIC | RPKI valid |
| 211.28.0.0/14 | AS4804 | /14 | APNIC | Too specific |
IRR
Route objects on 211.28.4.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4804 | APNIC | Optus Internet Pty Ltd | MAINT-AU-OPTUSINTERNET | Jul 28, 2025 |
Whois
Registration for this announcement
- Range
- 211.28.0.0/14
- Netname
- OPTUSINTERNET-AU
- Registrant
- Optus Internet Pty Ltd
- Registrant country
- AU
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Feb 5, 2024
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- AU
- Delegated
- Sep 4, 2001
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- ABUSE OPTUSINTERNETAU
- Handle
- AO400-AP