Robtex

Up: 187.252.8.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 187.252.12.0/23
Down right: 187.252.14.0/23

IP	Type	Hostname
187.252.12.195	PTR	187.252.12.195.cable.dyn.cableonline.com.mx
187.252.13.34	PTR	187.252.13.34.cable.dyn.cableonline.com.mx
187.252.13.34	A	speedtest.cuernavaca.izzi.mx
187.252.13.76	PTR	187.252.13.76.cable.dyn.cableonline.com.mx
187.252.13.76	A	r1.sn-j5caxh5n-j8wz.googlevideo.com
187.252.13.76	A	r1.sn-j5caxh5n-j8wz.gvt1.com
187.252.13.77	PTR	187.252.13.77.cable.dyn.cableonline.com.mx
187.252.13.77	A	r2.sn-j5caxh5n-j8wz.gvt1.com
187.252.13.77	A	r2.sn-j5caxh5n-j8wz.googlevideo.com
187.252.13.78	PTR	187.252.13.78.cable.dyn.cableonline.com.mx
187.252.13.79	PTR	187.252.13.79.cable.dyn.cableonline.com.mx
187.252.13.80	PTR	187.252.13.80.cable.dyn.cableonline.com.mx
187.252.13.80	A	r5.sn-j5caxh5n-j8wz.googlevideo.com
187.252.13.81	PTR	187.252.13.81.cable.dyn.cableonline.com.mx
187.252.13.81	A	r6.sn-j5caxh5n-j8wz.googlevideo.com
187.252.13.82	PTR	187.252.13.82.cable.dyn.cableonline.com.mx
187.252.13.82	A	r7.sn-j5caxh5n-j8wz.googlevideo.com
187.252.13.82	A	r7.sn-j5caxh5n-j8wz.gvt1.com
187.252.13.83	PTR	187.252.13.83.cable.dyn.cableonline.com.mx
187.252.13.108	PTR	187.252.13.108.cable.dyn.cableonline.com.mx
187.252.13.108	A	r1.sn-j5caxh5n-j8w6.googlevideo.com
187.252.13.109	PTR	187.252.13.109.cable.dyn.cableonline.com.mx
187.252.13.109	A	r2.sn-j5caxh5n-j8w6.googlevideo.com
187.252.13.110	PTR	187.252.13.110.cable.dyn.cableonline.com.mx
187.252.13.110	A	r3.sn-j5caxh5n-j8w6.gvt1.com
187.252.13.110	A	r3.sn-j5caxh5n-j8w6.googlevideo.com
187.252.13.111	PTR	187.252.13.111.cable.dyn.cableonline.com.mx