Data as of Nov 3, 2026
161.51.40.0/22
No anonymizer space · no proxy exits in 30 daysAAPT Limited · space held by KBR
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 161.51.40.0/23 since Jan 2026 | AS2764 | Business | KBR | |
| 161.51.42.0/23 since Jan 2026 | AS2764 | Business | KBR |
Network & registry
Origin network
AS2764
AU
- Name
- AAPT Limited
- Type
- Internet provider
- Registered
- Aug 1, 2002
- Domain
- aapt.com.au
- Website
- www.vocus.com.au
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Oct 2007
- Current origin since
- Jan 2026 · 10 mo
- Origin networks
- 4
- Last change of origin
- Jan 2026
Recorded history
History
- Handoffs
- 3
IRR
Route objects on the exact prefix
Whois
Registration for this announcement
- Range
- 161.51.0.0 - 161.51.47.255
- Netname
- KELLOGG-BROWN-ROOT-INC
- Registrant
- KBR
- Organization
- KBR (KBR-3)
- Org address
- 601 Jefferson Ave, Houston, TX, 77002
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-161-51-0-0-1
- Parent
- NET-161-0-0-0-0
- Created
- May 27, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- May 27, 1992
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Technical POC
- Phone
- +1-713-753-4357
- Handle
- TECHN193-ARIN