Robtex

Up: 138.210.160.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 138.210.164.0/23
Down right: 138.210.166.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.210.164.225	PTR	host-138-210-164-225.sta.embarqnow.net
138.210.164.225	A	email.lakecitybank.com
138.210.164.226	PTR	host-138-210-164-226.sta.embarqnow.net
138.210.164.226	A	srv-exbranch.lakecitybank.com
138.210.165.21	PTR	host-138-210-165-21.sta.embarqnow.net
138.210.165.55	PTR	host-138-210-165-55.sta.embarqnow.net
138.210.165.111	PTR	host-138-210-165-111.sta.embarqnow.net
138.210.165.134	PTR	host-138-210-165-134.sta.embarqnow.net
138.210.165.141	PTR	host-138-210-165-141.sta.embarqnow.net
138.210.165.168	PTR	host-138-210-165-168.sta.embarqnow.net
138.210.165.185	PTR	host-138-210-165-185.sta.embarqnow.net
138.210.165.200	PTR	host-138-210-165-200.sta.embarqnow.net
138.210.165.233	PTR	host-138-210-165-233.sta.embarqnow.net
138.210.165.248	PTR	host-138-210-165-248.sta.embarqnow.net
138.210.166.3	A	mail.tri-lakes.com
138.210.166.18	PTR	in-138-210-166-18.sta.centurylinkservices.net
138.210.166.36	A	mail.plymouthfoundry.com
138.210.166.69	A+PTR	mail.jwhicks.com
138.210.166.69	A	*.jwhicks.com
138.210.166.69	A	jwhicks.com
138.210.166.83	A	mail.lagrangecounty.org
138.210.166.178	A	mail.accudigservices.com