Robtex

Up: 208.54.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 208.54.136.0/22
Down right: 208.54.140.0/22

IP	Type	Hostname
208.54.138.9	PTR	splk-hec.pol.t-mobile.com
208.54.138.9	A	splk-hec.geo.t-mobile.com
208.54.138.14	A	appd-geo.geo.t-mobile.com
208.54.138.15	A	hssp-po.vidp.t-mobile.com
208.54.138.15	A	hssp.vidp.geo.t-mobile.com
208.54.138.17	PTR	m118a36d0.tmodns.net
208.54.138.17	A	esahook.geo.t-mobile.com
208.54.139.55	A	m378b36d0.tmodns.net
208.54.140.1	A	crl.geo.t-mobile.com
208.54.142.105	A+PTR	relay01.tmodns.net
208.54.142.197	A	workspace35.euv01.t-mobile.com
208.54.142.197	A	mc58e36d0.tmodns.net
208.54.142.213	A	workspace35.euv01.t-mobile.com
208.54.142.213	A	workspace35px.euv01.t-mobile.com