Robtex

Up: 58.64.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 58.64.52.0/23
Down right: 58.64.54.0/23

IP	Type	Hostname
58.64.52.12	PTR	58-64-52-0.24.cdn.cmbp-ron.myaisfibre.com
58.64.52.12	A	speedtest-cmi1.ais-idc.net
58.64.52.108	PTR	58-64-52-0.24.cdn.cmbp-ron.myaisfibre.com
58.64.52.108	A	r1.sn-5fo-jome.googlevideo.com
58.64.52.109	PTR	58-64-52-0.24.cdn.cmbp-ron.myaisfibre.com
58.64.52.109	A	r2.sn-5fo-jome.googlevideo.com
58.64.52.110	PTR	58-64-52-0.24.cdn.cmbp-ron.myaisfibre.com
58.64.52.110	A	r3.sn-5fo-jome.googlevideo.com
58.64.52.111	PTR	58-64-52-0.24.cdn.cmbp-ron.myaisfibre.com
58.64.52.111	A	r4.sn-5fo-jome.googlevideo.com
58.64.52.112	PTR	58-64-52-0.24.cdn.cmbp-ron.myaisfibre.com
58.64.52.112	A	r5.sn-5fo-jome.googlevideo.com
58.64.53.12	PTR	58-64-53-0.24.cdn.asay-roc.myaisfibre.com
58.64.53.12	A	speedtest-aya1.ais-idc.net
58.64.53.110	PTR	58-64-53-0.24.cdn.asay-roc.myaisfibre.com
58.64.53.110	A	r3.sn-5fo-c33el.gvt1.com
58.64.53.111	PTR	58-64-53-0.24.cdn.asay-roc.myaisfibre.com
58.64.53.111	A	r4.sn-5fo-c33el.gvt1.com
58.64.53.111	A	r4.sn-5fo-c33el.googlevideo.com
58.64.53.113	PTR	58-64-53-0.24.cdn.asay-roc.myaisfibre.com
58.64.53.113	A	r6.sn-5fo-c33el.gvt1.com
58.64.54.12	PTR	58-64-54-0.24.cdn.erhq-roe.myaisfibre.com
58.64.54.12	A	speedtest-cbi1.ais-idc.net
58.64.54.109	PTR	58-64-54-0.24.cdn.erhq-roe.myaisfibre.com
58.64.54.109	A	r2.sn-5fo-0u2e.gvt1.com
58.64.54.110	PTR	58-64-54-0.24.cdn.erhq-roe.myaisfibre.com
58.64.54.110	A	r3.sn-5fo-0u2e.googlevideo.com
58.64.54.110	A	r3.sn-5fo-0u2e.gvt1.com
58.64.55.12	PTR	58-64-55-0.24.cdn.mscs-ros.myaisfibre.com
58.64.55.12	A	speedtest-sni1.ais-idc.net
58.64.55.109	PTR	58-64-55-0.24.cdn.mscs-ros.myaisfibre.com
58.64.55.109	A	r2.sn-5fo-0gue.gvt1.com
58.64.55.109	A	r2.sn-5fo-0gue.googlevideo.com
58.64.55.110	PTR	58-64-55-0.24.cdn.mscs-ros.myaisfibre.com
58.64.55.110	A	r3.sn-5fo-0gue.gvt1.com
58.64.55.111	PTR	58-64-55-0.24.cdn.mscs-ros.myaisfibre.com
58.64.55.111	A	r4.sn-5fo-0gue.gvt1.com