MXLIST.NET - 128-255.19.100.155.in-addr.arpa

Search for IP or hostnames:

128-255.19.100.155.in-addr.arpa checked at 2025-10-28T07:15:20.463Z 1118ms 56/56/56 100% R:11

`128-255.19.100.155.in-addr.arpa`

NS	`fiber.utah.edu`
		A	128.110.132.99^{🇺🇸 AS17055}
		A	155.101.201.10^{🇺🇸 AS17055}
NS	`ns5.utah.edu`
		A	35.83.221.243^{🇺🇸 Amazon}
			PTR	`ec2-35-83-221-243.us-west-2.compute.amazonaws.com`
NS	`ns6.utah.edu`
		A	3.20.87.127^{🇺🇸 Amazon}
			PTR	`ec2-3-20-87-127.us-east-2.compute.amazonaws.com`
NS	`ns.utah.edu`
		A	128.110.124.120^{🇺🇸 AS17055}
			PTR	`ns.utah.edu`
		A	155.101.115.10^{🇺🇸 AS17055}

`19.100.155.in-addr.arpa`

	NS	`fiber.utah.edu`
	NS	`ns5.utah.edu`
	NS	`ns6.utah.edu`
	NS	`ns.utah.edu`

Up

145.128-255.19.100.155.in-addr.arpa

187.128-255.19.100.155.in-addr.arpa

191.128-255.19.100.155.in-addr.arpa

247.128-255.19.100.155.in-addr.arpa

194.128-255.19.100.155.in-addr.arpa

147.128-255.19.100.155.in-addr.arpa

242.128-255.19.100.155.in-addr.arpa

AI analysis

128-255.19.100.155.in-addr.arpa is the parent of 145.128-255.19.100.155.in-addr.arpa, 187.128-255.19.100.155.in-addr.arpa, 191.128-255.19.100.155.in-addr.arpa, 247.128-255.19.100.155.in-addr.arpa, 194.128-255.19.100.155.in-addr.arpa and a few other host names.

128-255.19.100.155.in-addr.arpa is delegated to four name servers: fiber.utah.edu, ns5.utah.edu, ns6.utah.edu and ns.utah.edu.

128-255.19.100.155.in-addr.arpa at least partially shares name servers with other domains, for instance chfe.utah.edu, pedcardiology.utah.edu, 82.97.155.in-addr.arpa, cmes.utah.edu and pcalifornica.utah.edu.

Host names with two IP numbers:

fiber.utah.edu points to 128.110.132.99 and 155.101.201.10; ns.utah.edu points to 128.110.124.120 and 155.101.115.10.

Host names with one IP number:

ns5.utah.edu points to 35.83.221.243; ns6.utah.edu points to 3.20.87.127.

dbq