Robtex

Up: 155.164.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 155.165.0.0/17
Down right: 155.165.128.0/17

IP	Type	Hostname
155.165.32.10	A	ndc1ns02.npc.mobilephone.net
155.165.32.11	A	ndc1inetdns02.npc.mobilephone.net
155.165.33.126	A	mail.cingularme.us
155.165.33.183	A	labmail.att.net
155.165.92.200	A	epdg02.epc.na-att-idns.net
155.165.178.120	A+PTR	devpgm-sit-app.eng.mobilephone.net
155.165.194.191	A+PTR	lab-mail03.mobilephone.net
155.165.194.191	A	lab-mail03.tdg.mobilephone.net
155.165.194.194	A+PTR	lab-mail01.mobilephone.net
155.165.194.194	A	lab-mail01.tdg.mobilephone.net
155.165.194.197	PTR	lab-mail02.mobilephone.net
155.165.253.10	A+PTR	wtc1oamdns-ext00.mobilephone.net
155.165.253.13	A+PTR	wtc1oamdns-ext01.mobilephone.net
155.165.253.13	A	ns1.mobilephone.net
155.165.253.16	PTR	wtc1oamdns-ext02.mobilephone.net
155.165.253.16	A	ns2.mobilephone.net
155.165.253.19	PTR	wtc1oamdns-ext03.mobilephone.net
155.165.255.7	A+PTR	wtc1ravpn.mobilephone.net