Autonomous system
AS31 CIT
Unclassified ARIN
IPv4 addresses
132K
16 prefixes
IPv6 prefixes
4
counted as prefixes, not addresses
Countries
1
mostly US
Flagged prefixes
6
see address space
Summary
California Institute of Technology (Caltech)
education research university legacy
An early low-numbered allocation (CIT) serving the California Institute of
Technology (Caltech) in Pasadena, California.
What it's used for
- Campus, research, and administrative networking for Caltech and its labs.
Notable
- Institutional address space, not commercial hosting or transit.
- The two-digit AS number reflects how early Caltech joined the internet, when numbers were handed out roughly in sequence.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 20 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS31- Registry name
- CIT
- Registrant
- California Institute of Technology
- Abuse contact
- noc@caltech.edu
- Registered
- 1984-09-21
- Last changed
- 2023-08-29
- Status
- active
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere