Robtex

Up: 192.31.134.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 192.31.134.128/26
Down right: 192.31.134.192/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.31.134.143	PTR	spamtitan1.viaagency.com
192.31.134.143	A	ocelotta.theviaagency.com
192.31.134.144	A	filter.ontechmail.net
192.31.134.145	A+PTR	spamtitan.frostpllc.com
192.31.134.146	PTR	spamtitan.ndtl.co.uk
192.31.134.146	PTR	spamtitan.prism.com.vn
192.31.134.146	A	mail2.prismit.com.vn
192.31.134.148	PTR	titan.wine.co.za
192.31.134.150	A	spamtitan.iotaengineering.com
192.31.134.151	PTR	spamtitan.dbequitygroup.com
192.31.134.151	A	filter.compoundstockearnings.com
192.31.134.153	A+PTR	spamtitan3.paragould.com
192.31.134.153	PTR	spamtitan.thailandbookshop.com
192.31.134.154	A+PTR	spamtitan.ardmore.co.uk
192.31.134.155	A+PTR	spamtitan.gfsmith.com
192.31.134.156	PTR	spamtitan.pcking.co.nz
192.31.134.156	A	mail.flemings.com.au
192.31.134.159	A	spamtitan.mwacademy.org
192.31.134.159	A	spamtitan.making-waves.org
192.31.134.160	A	spamtitan.cornerstoneprograms.com
192.31.134.161	A	spamtitan.parts-express.com
192.31.134.162	PTR	spamtitan.pcnetbuilder.com
192.31.134.164	PTR	mc2.followbee.be.134.31.192.in-addr.arpa
192.31.134.168	A	mailgw.arcon.net.pl
192.31.134.170	A+PTR	spamtitan.paragould.com
192.31.134.171	PTR	spamtitan.h2osatellite.com
192.31.134.171	PTR	spamtitan.neostrata.com
192.31.134.171	A	mail1.satnet365.net
192.31.134.172	A+PTR	stod1.boxerco.com
192.31.134.172	A	mx2.st.boxerco.com
192.31.134.173	A+PTR	mx3.minex.gob.gt
192.31.134.173	A+PTR	spamtitan.minex.gob.gt
192.31.134.176	PTR	spamtitan.fesru.org
192.31.134.176	PTR	spamtitan.contraloriadf.gob.mx
192.31.134.176	A	titan.demac.org.mx
192.31.134.180	A+PTR	dnscloud2.webtitan.com
192.31.134.199	A+PTR	vpsie.com
192.31.134.199	A	blog.vpsie.com
192.31.134.199	A	www.vpsie.com
192.31.134.204	A	thewelchclan.com
192.31.134.204	A	thewelchclan.org
192.31.134.209	A	vpsie.net