Robtex

Up: 67.213.188.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 67.213.189.0/25
Down right: 67.213.189.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
67.213.189.25	A+PTR	pps.calltower.com
67.213.189.26	A	sip.ct950.com
67.213.189.28	A	av.ct950.com
67.213.189.29	A	sip.ct950.com
67.213.189.31	A	av.ct950.com
67.213.189.32	A	sip.ct950.com
67.213.189.34	A	av.ct950.com
67.213.189.39	A	s4b1.ct950.com
67.213.189.39	A	s4b.ct950.com
67.213.189.39	A	meet.ct950.com
67.213.189.48	A+PTR	ct9slcfepool03.ct950.com
67.213.189.48	A+PTR	s4b3.ct950.com
67.213.189.49	A+PTR	s4b41.ct950.com
67.213.189.50	A	s4b51.ct950.com
67.213.189.52	PTR	67-213-189-x.ptr.calltower.com
67.213.189.52	A	s4b71.ct950.com
67.213.189.67	A	broadriver.com
67.213.189.68	PTR	67-213-189-x.ptr.calltower.com
67.213.189.68	A	uc.solutions
67.213.189.70	A	mcs.calltower.com
67.213.189.72	A+PTR	www.calltower.com
67.213.189.72	A	calltower.com
67.213.189.73	A+PTR	sip3.ct950.com
67.213.189.75	A+PTR	av3.ct950.com
67.213.189.76	A+PTR	sip3.ct950.com
67.213.189.78	A+PTR	av3.ct950.com
67.213.189.79	A+PTR	sip3.ct950.com
67.213.189.81	A+PTR	av3.ct950.com
67.213.189.89	A+PTR	sip41.ct950.com
67.213.189.91	A+PTR	av41.ct950.com
67.213.189.92	A+PTR	sip41.ct950.com
67.213.189.94	A+PTR	av41.ct950.com
67.213.189.95	A	sip51.ct950.com
67.213.189.97	A	av51.ct950.com
67.213.189.98	A	sip51.ct950.com
67.213.189.100	A	av51.ct950.com
67.213.189.107	A	sip71.ct950.com
67.213.189.110	A	sip71.ct950.com
67.213.189.130	PTR	67-213-189-x.ptr.calltower.com
67.213.189.130	A	s4b11.ct950.com
67.213.189.135	PTR	67-213-189-x.ptr.calltower.com
67.213.189.135	A	av11.ct950.com
67.213.189.136	PTR	67-213-189-x.ptr.calltower.com
67.213.189.136	A	av11.ct950.com
67.213.189.140	PTR	67-213-189-x.ptr.calltower.com
67.213.189.140	A	s4b31.ct950.com
67.213.189.145	PTR	67-213-189-x.ptr.calltower.com
67.213.189.145	A	av31.ct950.com
67.213.189.146	PTR	67-213-189-x.ptr.calltower.com
67.213.189.146	A	av31.ct950.com
67.213.189.147	PTR	67-213-189-x.ptr.calltower.com
67.213.189.147	A	s4b43.ct950.com
67.213.189.148	PTR	67-213-189-x.ptr.calltower.com
67.213.189.148	A	sip43.ct950.com
67.213.189.149	PTR	67-213-189-x.ptr.calltower.com
67.213.189.149	A	sip43.ct950.com
67.213.189.154	PTR	67-213-189-x.ptr.calltower.com
67.213.189.154	A	s4b53.ct950.com
67.213.189.155	PTR	67-213-189-x.ptr.calltower.com
67.213.189.155	A	sip53.ct950.com
67.213.189.156	PTR	67-213-189-x.ptr.calltower.com
67.213.189.156	A	sip53.ct950.com
67.213.189.159	PTR	67-213-189-x.ptr.calltower.com
67.213.189.159	A	av53.ct950.com
67.213.189.160	PTR	67-213-189-x.ptr.calltower.com
67.213.189.160	A	av53.ct950.com