Data as of Nov 14, 2026
192.31.43.0/24
No anonymizer space · no proxy exits in 30 daysCalifornia Institute of Technology
Network & registry
Origin network
AS31
US
- Name
- California Institute of Technology
- Type
- Education
- Registered
- Sep 21, 1984
- Domain
- caltech.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2009
- Current origin since
- Mar 2009 · 18 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 192.
31. 43. 0/ 24 - Netname
- CALTECH-192-31-43-0
- Registrant
- California Institute of Technology
- Organization
- California Institute of Technology (CIT-4-Z)
- Org address
- 1200 East California Boulevard, Pasadena, CA, 91125
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-192-31-43-0-1
- Parent
- NET-192-0-0-0-0
- Created
- Mar 13, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 13, 1991
- Status
- assigned
Report abuse
Abuse contact
- noc@
caltech. edu - Name
- Caltech Network Operations Center
- Phone
- +1-626-395-3500
- Handle
- CI2-ORG-ARIN