DNSWHOIS.INFO - irastro.caltech.edu

Search for IP or hostnames:

irastro.caltech.edu checked at 2025-11-09T18:22:43.925Z 298ms 62/62/62 100% R:13 allDone:true timedOut:false

`irastro.caltech.edu`

MX	`mx1.caltech.iphmx.com`
		A	68.232.137.147^{🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort}
		A	68.232.147.192^{🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort}
MX	`mx2.caltech.iphmx.com`
		A	68.232.137.147^{🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort}
		A	68.232.147.192^{🇺🇸 HPS // Cisco Cloud Email Security (CES) / IronPort}
A	131.215.193.100^{🇺🇸 CALIT}
		PTR	`irastro.caltech.edu`
		PTR	`phobos.caltech.edu`
		PTR	`submm.caltech.edu`
		PTR	`clock.submm.caltech.edu`

`caltech.edu`

	NS	`ns0090.secondary.cloudflare.com`
	NS	`ns0239.secondary.cloudflare.com`
	MX	`mx1.caltech.iphmx.com`
	MX	`mx2.caltech.iphmx.com`
	A	52.26.125.194^{🇺🇸 Amazon}

rank #932 globally
rank #56 in the tld
This domain "caltech.edu" is the official website for the California Institute of Technology. It provides information about the university's academic programs, research work, admissions, faculty, and various other resources for students and staff. The .edu extension indicates that it is an educational institution.

PTR for

100.193.215.131.in-addr.arpa

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AI analysis

irastro.caltech.edu points to a single IP: 131.215.193.100.

Other host names, for instance phobos.caltech.edu, clock.submm.caltech.edu and submm.caltech.edu share IP numbers with irastro.caltech.edu.

Two mail servers mx1.caltech.iphmx.com and mx2.caltech.iphmx.com handle irastro.caltech.edu.

irastro.caltech.edu uses the same mail server setup as other domains such as hss.caltech.edu, sms.caltech.edu, vigeland.paradise.caltech.edu, paradise.caltech.edu and phobos.caltech.edu.

irastro.caltech.edu shares at least some mail servers with other domains, for instance ad.caltech.edu and ipac.caltech.edu.

These mail servers are often used alongside the mail servers outlook.caltech.edu.

Host names with two IP numbers:

The host names mx1.caltech.iphmx.com and mx2.caltech.iphmx.com point to 68.232.137.147 and 68.232.147.192.

Host names that point to 68.232.137.147: mx1.caltech.iphmx.com and mx2.caltech.iphmx.com.

Host names that point to 68.232.147.192: mx1.caltech.iphmx.com and mx2.caltech.iphmx.com.

dbq