Robtex

Up: 71.13.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 71.13.76.0/23
Down right: 71.13.78.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
71.13.76.10	A	mpcsrv1.manesspetr.com
71.13.76.11	A	mail.stricklerresources.com
71.13.76.58	A+PTR	mail01.gtipower.com
71.13.76.58	A	mail.gtipower.com
71.13.76.218	A	rixedy.com
71.13.76.230	A	osoftdev-saga.com
71.13.76.236	A	mail.levine-levine.com
71.13.77.14	A	mail.mwcg.us
71.13.77.22	A+PTR	remote.dnswm.org
71.13.77.22	A	mail.dnswm.org
71.13.77.86	PTR	71-13-77-86.static.aldl.mi.charter.com
71.13.77.86	A	mail.smilesbyswelstad.com
71.13.77.86	A	mail.rummelortho.com
71.13.77.98	PTR	071-013-077-098.biz.spectrum.com
71.13.77.98	A	ns1.mikingmail.com
71.13.77.98	A	ns1.northwindinv.com
71.13.77.99	PTR	71-13-77-99.static.aldl.mi.charter.com
71.13.77.100	PTR	071-013-077-100.biz.spectrum.com
71.13.77.100	A	qdobami.com
71.13.77.100	A	mikingmail.com
71.13.77.132	A	mail.greatnorthernbenefits.com
71.13.77.202	A	mx.petoskeyfamilydentalcare.com
71.13.77.214	A	quick-burn.com
71.13.77.214	A	mail.quick-burn.com
71.13.77.214	A	smtp.quick-burn.com
71.13.78.3	A+PTR	mail.qstconsultations.com
71.13.78.11	A+PTR	71-13-78-11.static.aldl.mi.charter.com
71.13.78.13	A	mail1.qstconsultations.com
71.13.78.13	A	mail1.qstcr.com
71.13.78.13	A	mail1.qstcro.com
71.13.78.22	A+PTR	www.fietbackup.com
71.13.78.22	A	mail.fietbackup.com
71.13.78.22	A	fietbackup.com
71.13.78.34	A+PTR	71-13-78-34.static.aldl.mi.charter.com
71.13.78.34	A	mail.pelotoninc.com
71.13.78.46	A+PTR	mail.wsfcpas.com
71.13.78.85	A+PTR	71-13-78-85.static.aldl.mi.charter.com
71.13.78.90	PTR	71-13-78-90.static.aldl.mi.charter.com
71.13.78.98	A+PTR	mail.michworks4u.org
71.13.78.129	A+PTR	71-13-78-129.static.aldl.mi.charter.com
71.13.78.154	A	mail.cityofallegan.org
71.13.78.210	A	mail.northcountryins.com
71.13.78.210	A	remote.northcountryins.com
71.13.78.222	A	71-13-78-222.static.aldl.mi.charter.com
71.13.78.229	A+PTR	71-13-78-229.static.aldl.mi.charter.com
71.13.79.2	A	mail.northernshoresloanfund.org
71.13.79.4	A+PTR	71-13-79-4.static.aldl.mi.charter.com
71.13.79.6	A+PTR	71-13-79-6.static.aldl.mi.charter.com
71.13.79.8	A+PTR	71-13-79-8.static.aldl.mi.charter.com
71.13.79.12	A+PTR	71-13-79-12.static.aldl.mi.charter.com
71.13.79.19	A+PTR	71-13-79-19.static.aldl.mi.charter.com
71.13.79.22	A+PTR	71-13-79-22.static.aldl.mi.charter.com
71.13.79.23	A+PTR	71-13-79-23.static.aldl.mi.charter.com
71.13.79.24	A+PTR	71-13-79-24.static.aldl.mi.charter.com
71.13.79.30	A+PTR	kurios.r4780y.com
71.13.79.30	A	r4780y.com
71.13.79.30	A	ns1.r4780y.com
71.13.79.34	A	server4.millikenmedical.net
71.13.79.36	A+PTR	71-13-79-36.static.aldl.mi.charter.com
71.13.79.40	A+PTR	71-13-79-40.static.aldl.mi.charter.com
71.13.79.43	A+PTR	71-13-79-43.static.aldl.mi.charter.com
71.13.79.46	A+PTR	71-13-79-46.static.aldl.mi.charter.com
71.13.79.49	A+PTR	71-13-79-49.static.aldl.mi.charter.com
71.13.79.50	A+PTR	71-13-79-50.static.aldl.mi.charter.com
71.13.79.57	A+PTR	71-13-79-57.static.aldl.mi.charter.com
71.13.79.58	A+PTR	71-13-79-58.static.aldl.mi.charter.com
71.13.79.62	A+PTR	71-13-79-62.static.aldl.mi.charter.com
71.13.79.63	A+PTR	71-13-79-63.static.aldl.mi.charter.com
71.13.79.82	PTR	www.kal-soft.com
71.13.79.82	A	millinauto.com
71.13.79.82	A	www.aerocalendar.com
71.13.79.85	A+PTR	71-13-79-85.static.aldl.mi.charter.com
71.13.79.90	A+PTR	71-13-79-90.static.aldl.mi.charter.com
71.13.79.94	A+PTR	71-13-79-94.static.aldl.mi.charter.com
71.13.79.100	A+PTR	71-13-79-100.static.aldl.mi.charter.com
71.13.79.101	A+PTR	71-13-79-101.static.aldl.mi.charter.com
71.13.79.105	A+PTR	71-13-79-105.static.aldl.mi.charter.com
71.13.79.107	A+PTR	71-13-79-107.static.aldl.mi.charter.com
71.13.79.109	A+PTR	71-13-79-109.static.aldl.mi.charter.com
71.13.79.110	A+PTR	server.gtrcf.org
71.13.79.110	A	server1.gtrcf.org
71.13.79.113	A+PTR	71-13-79-113.static.aldl.mi.charter.com
71.13.79.114	A+PTR	71-13-79-114.static.aldl.mi.charter.com
71.13.79.120	A+PTR	71-13-79-120.static.aldl.mi.charter.com
71.13.79.123	A+PTR	71-13-79-123.static.aldl.mi.charter.com
71.13.79.124	A+PTR	71-13-79-124.static.aldl.mi.charter.com
71.13.79.130	A+PTR	71-13-79-130.static.aldl.mi.charter.com
71.13.79.142	A+PTR	71-13-79-142.static.aldl.mi.charter.com
71.13.79.144	A+PTR	71-13-79-144.static.aldl.mi.charter.com
71.13.79.147	A+PTR	71-13-79-147.static.aldl.mi.charter.com
71.13.79.151	A+PTR	71-13-79-151.static.aldl.mi.charter.com
71.13.79.162	A+PTR	71-13-79-162.static.aldl.mi.charter.com
71.13.79.163	PTR	71-13-79-163.static.aldl.mi.charter.com
71.13.79.170	A+PTR	71-13-79-170.static.aldl.mi.charter.com
71.13.79.171	PTR	71-13-79-171.static.aldl.mi.charter.com
71.13.79.172	A+PTR	71-13-79-172.static.aldl.mi.charter.com
71.13.79.177	A+PTR	71-13-79-177.static.aldl.mi.charter.com
71.13.79.180	A+PTR	71-13-79-180.static.aldl.mi.charter.com
71.13.79.184	A+PTR	71-13-79-184.static.aldl.mi.charter.com
71.13.79.186	A	remote.thegleasoncenter.com
71.13.79.186	A	mail.thegleasoncenter.com
71.13.79.191	A+PTR	71-13-79-191.static.aldl.mi.charter.com
71.13.79.199	PTR	71-13-79-199.static.aldl.mi.charter.com
71.13.79.199	A	soaptranscription.com
71.13.79.199	A	partnerwithsoap.com
71.13.79.205	A+PTR	71-13-79-205.static.aldl.mi.charter.com
71.13.79.206	A+PTR	71-13-79-206.static.aldl.mi.charter.com
71.13.79.216	A+PTR	71-13-79-216.static.aldl.mi.charter.com
71.13.79.222	A	mail.oetmanexcavating.com
71.13.79.223	A+PTR	71-13-79-223.static.aldl.mi.charter.com
71.13.79.226	A+PTR	71-13-79-226.static.aldl.mi.charter.com
71.13.79.229	A+PTR	71-13-79-229.static.aldl.mi.charter.com
71.13.79.236	A+PTR	71-13-79-236.static.aldl.mi.charter.com
71.13.79.238	A+PTR	71-13-79-238.static.aldl.mi.charter.com
71.13.79.246	A+PTR	71-13-79-246.static.aldl.mi.charter.com
71.13.79.247	A+PTR	71-13-79-247.static.aldl.mi.charter.com
71.13.79.248	A+PTR	71-13-79-248.static.aldl.mi.charter.com
71.13.79.255	A+PTR	71-13-79-255.static.aldl.mi.charter.com