Robtex

Up: 38.103.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 38.103.80.0/23
Down right: 38.103.82.0/23

IP	Type	Hostname
38.103.80.129	PTR	38.103.80.129
38.103.80.130	A+PTR	webpr1schdca.secure-24.net
38.103.80.130	A	hoosierheroes.org
38.103.80.170	A	web1insdca.secure-24.net
38.103.81.3	PTR	mail.4cresults.com
38.103.81.13	A	replayportal.foreseeresults.com
38.103.81.20	PTR	20.81.103.38.in-addr.arpa
38.103.81.163	PTR	163.81.103.38.in-addr.arpa
38.103.81.163	A	4cresults.com
38.103.83.4	A	wwwdodca.secure-24.net
38.103.83.17	A	ignitables.net
38.103.83.23	PTR	38.103.83.23
38.103.83.42	PTR	38.103.83.42
38.103.83.42	A	vehicletransportfw.com
38.103.83.70	PTR	38.103.83.70
38.103.83.76	PTR	38.103.83.76
38.103.83.100	PTR	38.103.83.100
38.103.83.131	PTR	38.103.83.131
38.103.83.159	PTR	38.103.83.159
38.103.83.238	PTR	238.83.103.38.in-addr.arpa
38.103.83.251	PTR	251.83.103.38.in-addr.arpa
38.103.83.253	PTR	253.83.103.38.in-addr.arpa