Robtex

Up: 63.27.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 63.27.0.0/20
Down right: 63.27.16.0/20

IP	Type	Hostname
63.27.4.238	A+PTR	tmtrflaas-ias0-onevzwebsocket-tpa.verizonwireless.com
63.27.6.2	PTR	smtpout2-tpa.verizon.com
63.27.6.2	A	1cust1538.an1.dca16.da.uu.net
63.27.6.4	A	smtpout4-tpa.verizon.com
63.27.6.12	A	1cust1548.an1.dca16.da.uu.net
63.27.6.14	A	1cust1550.an1.dca16.da.uu.net
63.27.6.32	A+PTR	1cust1568.an1.dca16.da.uu.net
63.27.6.36	A	1cust1572.an1.dca16.da.uu.net
63.27.6.38	A	1cust1574.an1.dca16.da.uu.net
63.27.6.40	A	1cust1576.an1.dca16.da.uu.net
63.27.6.75	A	1cust1611.an1.dca16.da.uu.net
63.27.6.77	A	1cust1613.an1.dca16.da.uu.net
63.27.6.79	A	1cust1615.an1.dca16.da.uu.net
63.27.6.80	A	1cust1616.an1.dca16.da.uu.net
63.27.6.98	A+PTR	1cust1634.an1.dca16.da.uu.net
63.27.6.104	A	1cust1640.an1.dca16.da.uu.net
63.27.6.108	A	1cust1644.an1.dca16.da.uu.net
63.27.6.110	A	1cust1646.an1.dca16.da.uu.net
63.27.6.141	A	1cust1677.an1.dca16.da.uu.net
63.27.6.143	A	1cust1679.an1.dca16.da.uu.net
63.27.6.147	A	1cust1683.an1.dca16.da.uu.net
63.27.6.148	A	1cust1684.an1.dca16.da.uu.net
63.27.6.162	A+PTR	1cust1698.an1.dca16.da.uu.net
63.27.6.166	A	1cust1702.an1.dca16.da.uu.net
63.27.6.169	A	1cust1705.an1.dca16.da.uu.net
63.27.6.172	A	1cust1708.an1.dca16.da.uu.net
63.27.6.198	A	1cust1734.an1.dca16.da.uu.net
63.27.6.209	A	1cust1745.an1.dca16.da.uu.net
63.27.6.213	A	1cust1749.an1.dca16.da.uu.net
63.27.6.216	A	1cust1752.an1.dca16.da.uu.net
63.27.6.224	A+PTR	1cust1760.an1.dca16.da.uu.net
63.27.6.225	A+PTR	1cust1761.an1.dca16.da.uu.net
63.27.6.226	A+PTR	1cust1762.an1.dca16.da.uu.net
63.27.6.232	A	1cust1768.an1.dca16.da.uu.net
63.27.11.2	A	1cust2818.an1.dca16.da.uu.net
63.27.14.2	A+PTR	1cust3586.an1.dca16.da.uu.net
63.27.14.237	A	1cust3821.an1.dca16.da.uu.net
63.27.16.2	A	1cust4098.an1.dca16.da.uu.net
63.27.16.17	A+PTR	ns-tmtr.verizonwireless.com
63.27.16.87	A+PTR	fltmtrcolec14m.verizon.com
63.27.16.88	A+PTR	fltmtrcolec14p1.verizon.com
63.27.18.16	A+PTR	tmtr-nsi2.verizonwireless.com
63.27.23.51	A+PTR	1cust5939.an1.dca16.da.uu.net
63.27.26.8	A+PTR	tmtrflaai-ias01la-sharefile-tpa.verizonwireless.com
63.27.26.14	A	vzid-dr.verizonwireless.com
63.27.26.14	A	tmtrflaai-ias01la-vzidr7-tpa.verizon.com
63.27.26.15	A	cim-dr.g.vzw.com
63.27.26.29	PTR	tmtrflaai-ias01la-ws1exch-tpa.verizonwireless.com
63.27.27.14	A+PTR	tmtrflaai-7as01las-adns.verizonwireless.com
63.27.28.2	A+PTR	1cust7170.an1.dca16.da.uu.net