AS31
California Institute of Technology · caltech.edu
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| Field | Value |
|---|---|
| Country |
United States
|
| Website | caltech.edu |
| Hosted domains | 137 |
| Number of IPv4 | 131,840 |
| Number of IPv6 | 79,228,162,514,264,337,593,543,950,336 |
| ASN type | Education |
| Registry | arin |
| Allocated | 40 years ago on Sep 21, 1984 |
| Updated | a year ago on Aug 29, 2023 |
IP Ranges
| Netblock | Company | Num of IPs |
|---|---|---|
| 131.215.0.0/16 | California Institute of Technology | 65,536 |
| 131.215.229.0/24 | California Institute of Technology | 256 |
| 131.215.230.0/24 | California Institute of Technology | 256 |
| 131.215.234.0/24 | California Institute of Technology | 256 |
| 131.215.239.0/24 | California Institute of Technology | 256 |
| 131.215.240.0/24 | California Institute of Technology | 256 |
| 131.215.242.0/23 | California Institute of Technology | 512 |
| 131.215.244.0/23 | California Institute of Technology | 512 |
| 134.4.0.0/16 | California Institute of Technology | 65,536 |
| 192.12.19.0/24 | California Institute of Technology | 256 |
| 192.31.43.0/24 | California Institute of Technology | 256 |
| 192.41.208.0/24 | California Institute of Technology | 256 |
| Netblock | Company |
|---|---|
| 2607:f520::/32 | California Institute of Technology |
WHOIS Details
ASHandle: AS31 OrgID: AS31 ASName: AS31 ASNumber: AS31 RegDate: 0000-00-00 Updated: 0000-00-00 TechHandle: AA00-AAAA Source: AAAA
Hosted Domains
There are 137 domain names hosted across 62 IP addresses on this ASN.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 131.215.239.20 | ██████████ | 21 |
| 131.215.68.28 | ██████████ | 9 |
| 131.215.167.175 | ██████████ | 8 |
| 131.215.140.111 | ██████████ | 6 |
| 134.4.74.17 | ██████████ | 6 |
| 131.215.198.54 | ██████████ | 6 |
| 131.215.194.134 | ██████████ | 4 |
| 131.215.66.188 | ██████████ | 4 |
| 131.215.113.72 | ██████████ | 4 |
| 131.215.76.24 | ██████████ | 3 |
Upstreams
There are 3 upstreams for this ASN.
Downstreams
There are no downstreams for this ASN.
Related Networks
What is an ASN?
Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS31 at robtex.
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