Data as of Nov 15, 2026
203.6.0.0/18
No anonymizer space · no proxy exits in 30 daysSingTel Optus Pty Ltd · space held by Australian Defence Organisation
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 203.6.8.0/22 since Sep 2011 | AS7575 | Business | Australian Defence Organisation | |
| 203.6.31.0/24 since Oct 2015 | AS9466 | Business | Australian Defence Organisation | |
| 203.6.32.0/24 since Oct 2015 | AS9466 | Business | Australian Defence Organisation | |
| 203.6.33.0/24 since Sep 2015 | AS9466 | Business | Australian Defence Organisation | |
| 203.6.36.0/22 since Apr 2014 | AS9466 | Business | Australian Defence Organisation |
Network & registry
Origin network
AS7474
AU
- Name
- SingTel Optus Pty Ltd
- Type
- Internet provider
- Registered
- Feb 3, 1997
- Domain
- optus.com.au
- Website
- optus.com.au/business/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 203.
6. 0. 0/ 18 - Netname
- AUSDEFENCE
- Registrant
- Australian Defence Organisation
- Registrant country
- AU
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jan 15, 2021
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- AU
- Delegated
- Jul 8, 1994
- Status
- assigned
Report abuse
Abuse contact
- architecture.
support@ defence. gov. au - Name
- ABUSE AUSDEFENCEAU
- Handle
- AA2247-AP