Robtex

Up: 216.247.96.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 216.247.96.0/21
Down right: 216.247.104.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.247.96.75	A	mail.dermdoc.com
216.247.96.116	PTR	mail.loppy.com
216.247.96.116	PTR	mail.roselandpark.com
216.247.96.122	A	mail.stayk.net
216.247.97.7	PTR	mail.buscoach.com
216.247.97.52	A	mail.hawaiivacationexperts.com
216.247.97.52	A	mail.caribbeantravelexperts.com
216.247.97.52	A	mail.royalcaribbeanexperts.com
216.247.98.6	PTR	mail.armamentarium.com
216.247.99.5	PTR	mail.opwebdesign.com
216.247.99.211	PTR	mail.cemre.net
216.247.100.40	PTR	mail.neuroskills.com
216.247.100.69	PTR	mail.nybound.com
216.247.100.96	PTR	mail.manisteegolf.com
216.247.100.177	PTR	mail.goldenminds.com
216.247.100.202	PTR	mail.123wigs.com
216.247.101.98	PTR	mail.homersicecream.com
216.247.101.159	A	mail.financialadventures.com
216.247.101.159	A	mail.financialadventures.net
216.247.101.161	PTR	mail.healthsensor.com
216.247.102.22	PTR	mail.worldmind.com
216.247.102.39	A	mail.wassermanmancinichang.com
216.247.102.69	PTR	mail.kranyak.com
216.247.102.167	PTR	mail.plazaautomall.com
216.247.102.182	PTR	mail.cosequin.com
216.247.102.182	PTR	mail.nutramaxlabs.com
216.247.103.39	PTR	mail.winworldco.cc
216.247.103.79	A	mail.architecture-interiors.com
216.247.103.79	A	mail.condominiumdocuments.com
216.247.103.79	A	mail.architectureinteriors.com
216.247.103.113	PTR	mail.19north.com
216.247.103.131	A	mail.lanwatcher.net
216.247.103.199	A	mail.givenengineering.com
216.247.104.114	PTR	mail.greenwish.com
216.247.104.162	PTR	mail.parrotsoftware.com
216.247.106.7	A	mail.matthewmendelsohn.com
216.247.106.52	PTR	mail.tzan.com
216.247.106.62	A	mail.osagebow.com
216.247.106.66	PTR	mail.big-planet.com
216.247.106.144	PTR	mail.eondirect.com
216.247.106.156	A	mail.aschome.com
216.247.106.197	PTR	mail.warwick-new-york.com
216.247.106.208	PTR	mail.nodzine.com
216.247.106.212	A	mail.berstalerts.com
216.247.106.212	A	mail.berst-alerts.com
216.247.106.212	A	mail.berst-alert.com
216.247.106.218	A	mail.advstr.com
216.247.107.100	PTR	mail.hdbiz.com
216.247.107.161	A	mail.armitageshanks.com.sa
216.247.107.161	A	mail.alnajran.com.sa
216.247.107.164	PTR	mail.nutty.com
216.247.107.164	A	mail.nuttycompany.com
216.247.107.166	PTR	mail.littlesprouts.com
216.247.108.53	PTR	mail.ohmsoftware.com
216.247.108.54	PTR	mail.infosummary.com
216.247.108.118	A	mail.sasys.net
216.247.108.118	A	mail.southernassociates.net
216.247.108.118	A	mail.jmichalko.net
216.247.108.133	PTR	mail.iaview.com
216.247.108.133	PTR	mail.internextmall.com
216.247.108.178	PTR	mail.kidspeech.com
216.247.108.242	PTR	mail.kidsdesk.com
216.247.109.225	PTR	mail.n-i-c.com
216.247.111.20	PTR	mail.ie-group.com
216.247.111.131	PTR	mail.awesomestyles.com
216.247.111.148	PTR	mail.kesslermusic.com
216.247.111.166	PTR	mail.dotyhench.com
216.247.111.178	PTR	mail.mrpeeves.com
216.247.111.178	PTR	mail.petpeeves-2000.com
216.247.111.178	PTR	mail.petpeeves-online.com