Robtex

Up: 139.170.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 139.171.0.0/17
Down right: 139.171.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
139.171.1.1	A+PTR	secure.msen.net
139.171.26.88	A	mail.montanasbestdeals.com
139.171.26.88	A	mail.thompsonwasik.com
139.171.26.88	A	mail.ilovelegacy.com
139.171.30.2	PTR	webmail.sacc.com
139.171.30.3	PTR	ewpdesign.com
139.171.194.40	A	exchange.35thdistrictcourt.org
139.171.194.99	A	stagweb1.mobilecollect.com
139.171.194.101	A	prodweb1.mobilecollect.com
139.171.196.100	PTR	mail.die-for.com
139.171.198.162	PTR	www.disklessworkstations.com
139.171.199.27	A	autoconfig.connectmich.com
139.171.199.34	A	ftp.lodden.com
139.171.199.254	A	ns5.minetworkservices.com
139.171.200.30	A	indignant.lodden.com
139.171.202.40	PTR	www.michaelwlucas.com
139.171.206.18	A	mail.assuratouch.com