Details about AS (Autonomous System) number
AS31
California Institute of Technology
AS31 - California Institute of Technology
| Country | 🇺🇸 United States |
| Address | 1200 East California Boulevard, MS 1-10, Pasadena, CA, 91125, United States |
ASN type | Education |
| Registry | ARIN |
| Website | |
| Hosted domains | 38 |
| Allocated | 1984-09-21 |
| Updated | 2023-08-29 |
Hosted domains
There are 38 domain names hosted on this ASN.
Domain | Rank |
|---|---|
shakealert.org | 133,479 |
mbine.org | 275,253 |
gwosc.org | 292,908 |
gw-openscience.org | 566,776 |
black-holes.org | 568,751 |
Domain | Rank |
|---|---|
textpresso.org | 609,190 |
cisn.org | 756,632 |
tccondata.org | 2,114,240 |
universeunplugged.org | 2,152,746 |
vallis.org | 4,538,247 |
IP ranges
The ASN has 12 associated IP address ranges.
IP | Version |
|---|---|
131.215.0.0/16 | IPv4 |
131.215.229.0/24 | IPv4 |
131.215.230.0/24 | IPv4 |
131.215.234.0/24 | IPv4 |
131.215.239.0/24 | IPv4 |
131.215.240.0/24 | IPv4 |
IP | Version |
|---|---|
131.215.242.0/23 | IPv4 |
131.215.244.0/23 | IPv4 |
134.4.0.0/16 | IPv4 |
192.12.19.0/24 | IPv4 |
192.31.43.0/24 | IPv4 |
192.41.208.0/24 | IPv4 |
WHOIS details
ASNumber: 31 ASName: CIT ASHandle: AS31 RegDate: 1984-09-21 Updated: 2023-08-29 OrgName: California Institute of Technology OrgId: CIT-4-Z Address: 1200 East California Boulevard Address: MS 1-10 City: Pasadena StateProv: CA PostalCode: 91125 Country: US RegDate: 2023-08-22 Updated: 2023-08-22 OrgAbuseHandle: CI2-ORG-ARIN OrgAbuseName: Caltech Network Operations Center OrgAbusePhone: +1-626-395-3500 OrgAbuseEmail: [email protected] OrgTechHandle: CI2-ORG-ARIN OrgTechName: Caltech Network Operations Center OrgTechPhone: +1-626-395-3500 OrgTechEmail: [email protected] RTechHandle: CI2-ORG-ARIN RTechName: Caltech Network Operations Center RTechPhone: +1-626-395-3500 RTechEmail: [email protected]
Most popular IPs on AS31
California Institute of Technology
- IP
- Domains
- 🇺🇸 131.215.140.1115
- 🇺🇸 131.215.198.543
- 🇺🇸 131.215.113.723
- 🇺🇸 131.215.65.682
- 🇺🇸 131.215.76.242
- 🇺🇸 131.215.66.1882
- 🇺🇸 131.215.34.1192
- 🇺🇸 131.215.176.711
- 🇺🇸 131.215.100.131
- 🇺🇸 131.215.225.441
Best Email hosting on AS31
California Institute of Technology
- Email providers
- Domains
- secureserver.net3
- google.com2
- socalgeodetic.org1
- gandi.net1
- ultralight.org1
- mailgun.org1
- cisn.org1
- registrar-servers.com1
- rickettshovse.com1
- zoneedit.com1
Best domain registrar on AS31
California Institute of Technology
- Provider
- Domains
- googledomains.com7
- caltech.edu7
- domaincontrol.com5
- registrar-servers.com4
- nearlyfreespeech.net2
- joker.com2
- domain.com2
- zoneedit.com2
- aplus.net1
- berkeley.edu1