Robtex

Up: 162.248.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 162.248.20.0/23
Down right: 162.248.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
162.248.21.10	PTR	ip-162-248-21-10.ragingwire.net
162.248.21.10	A	sipex.com
162.248.21.10	A	cadeka.com
162.248.21.13	A	exar.net
162.248.21.106	PTR	ip-162-248-21-106.ragingwire.net
162.248.21.196	PTR	ip-162-248-21-196.ragingwire.net
162.248.21.196	A	calquakeapps.com
162.248.21.221	A	mx.calquake.com
162.248.21.222	A	mail.calquake.com
162.248.23.50	A	mail.farmersrice.com
162.248.23.140	A+PTR	webmail.servicesource.com
162.248.23.148	A	mitel.connectpartnerportal.com
162.248.23.171	PTR	ip-162-248-23-171.ragingwire.net
162.248.23.171	A	mysrev.servicesource.com