Robtex

Up: 204.16.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 204.16.52.0/23
Down right: 204.16.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.16.52.8	PTR	atl-204-16-52-8.commpartners.us
204.16.52.8	A	p.mymtm.us
204.16.52.17	PTR	atl-204-16-52-17.commpartners.us
204.16.52.17	A	las-web-1.commpartners.us
204.16.52.21	PTR	atl-204-16-52-21.commpartners.us
204.16.52.21	A	p.mymtm.us
204.16.52.21	A	pt.mymtm.us
204.16.52.28	PTR	atl-204-16-52-28.commpartners.us
204.16.52.28	A	p.mymtm.us
204.16.52.30	PTR	atl-204-16-52-30.commpartners.us
204.16.52.30	A	apptest.mymtm.us
204.16.52.32	PTR	atl-204-16-52-32.commpartners.us
204.16.52.32	A	p.mymtm.us
204.16.52.34	PTR	atl-204-16-52-34.commpartners.us
204.16.52.34	A	apptest.mymtm.us
204.16.52.55	A	vm.commpartners.us
204.16.52.100	PTR	atl-ext-util.commpartners.us
204.16.52.100	A	ns4.commpartners.us
204.16.52.100	A	ns2.commpartners.us
204.16.52.102	PTR	mailx.commpartners.us
204.16.52.102	A	voip-messages.com
204.16.52.102	A	ns1.commpartners.us
204.16.52.103	PTR	atl-204-16-52-103.commpartners.us
204.16.52.105	PTR	atl-204-16-52-105.commpartners.us
204.16.52.105	A	xmail.commpartners.us
204.16.52.105	A	mail.commpartners.us
204.16.52.110	A	voip-signup.com
204.16.52.117	PTR	atl-204-16-52-117.commpartners.us
204.16.52.117	A	www.commpartnersconnect.com
204.16.52.117	A	commpartnersconnect.net
204.16.53.4	A	atl-ccivoip.us
204.16.54.4	A	sipcents.net
204.16.54.4	A	sipcents.us
204.16.54.7	PTR	atl-204-16-54-7.commpartners.us
204.16.54.7	A	pbx.ca1.mymtm.us
204.16.54.17	PTR	atl-204-16-54-17.commpartners.us
204.16.54.34	PTR	atl-204-16-54-34.commpartners.us
204.16.54.82	PTR	atl-204-16-54-82.commpartners.us
204.16.54.118	PTR	atl-204-16-54-118.commpartners.us
204.16.54.205	PTR	atl-204-16-54-205.commpartners.us
204.16.55.67	PTR	atl-204-16-55-67.commpartners.us
204.16.55.67	A	my-voip.us
204.16.55.100	PTR	atl-204-16-55-100.commpartners.us
204.16.55.100	A	cpstaging.com
204.16.55.130	A	corp.commpartners.us
204.16.55.134	A	lcs.commpartners.us
204.16.55.255	PTR	atl-204-16-55-255.commpartners.us