Robtex

Up: 72.163.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 72.163.128.0/19
Down right: 72.163.160.0/19

IP	Type	Hostname
72.163.128.25	A+PTR	pir-blr1-1-a.cisco.com
72.163.128.26	A+PTR	pir-blr1-2-a.cisco.com
72.163.128.139	A+PTR	esl-blr1-1-l.cisco.com
72.163.128.140	A+PTR	dns-blr1.cisco.com
72.163.128.163	A+PTR	acs-bgl-p1-4-l.cisco.com
72.163.129.152	A+PTR	adc-bgl1-c1-5.cisco.com
72.163.129.153	A+PTR	adc-bgl1-en-3-w.cisco.com
72.163.129.154	A+PTR	adc-bgl1-en-4-w.cisco.com
72.163.129.157	A+PTR	adc-bgl1-c1-3.cisco.com
72.163.130.26	A+PTR	ucm-ap161-bgl.cisco.com
72.163.130.27	A+PTR	ucm-ap171-bgl.cisco.com
72.163.130.40	A+PTR	ucm-ap121-bgl.cisco.com
72.163.130.41	A+PTR	ucm-ap131-bgl.cisco.com
72.163.130.80	A+PTR	bgl11-dc-acns-cr2.cisco.com
72.163.130.84	A+PTR	bgl11-dc-acns-cr1.cisco.com
72.163.132.151	A+PTR	bgl11-lcfr-1.cisco.com
72.163.162.45	A+PTR	paris-1.cisco.com
72.163.168.151	A+PTR	somcs-lnx.cisco.com
72.163.170.5	A	bgl11-lab-gw2-vlan10.cisco.com
72.163.171.2	A+PTR	bgl13-gem-ubvpn-gw1a.cisco.com
72.163.171.252	A+PTR	bgl13-gem-ubvpn-gw2a.cisco.com
72.163.177.172	A+PTR	dhcp-72-163-177-172.cisco.com
72.163.177.183	A	dhcp-72-163-177-183.cisco.com
72.163.177.185	A	dhcp-72-163-177-185.cisco.com
72.163.177.219	A+PTR	dhcp-72-163-177-219.cisco.com
72.163.177.232	PTR	printer-xx-cbcf29.cisco.com
72.163.177.239	A	dhcp-72-163-177-239.cisco.com
72.163.184.2	A+PTR	bgl12-00-gw1-vla340.cisco.com
72.163.184.29	A	bld12-4f-disp1.cisco.com
72.163.184.30	A	bld12-4f-disp2.cisco.com
72.163.184.32	A	bgl12-cam-k193.cisco.com
72.163.184.102	A	printer-bgl12-04-b7-5-mx.cisco.com
72.163.184.108	A	dhcp-72-163-184-108.cisco.com
72.163.184.116	A	dhcp-72-163-184-116.cisco.com
72.163.184.117	A	dhcp-72-163-184-117.cisco.com
72.163.184.128	A+PTR	dhcp-72-163-184-128.cisco.com
72.163.184.140	A	dhcp-72-163-184-140.cisco.com
72.163.184.141	A	dhcp-72-163-184-141.cisco.com
72.163.184.144	A	dhcp-72-163-184-144.cisco.com
72.163.184.196	A	dhcp-72-163-184-196.cisco.com
72.163.184.197	A	dhcp-72-163-184-197.cisco.com
72.163.184.200	A	dhcp-72-163-184-200.cisco.com
72.163.184.204	A	dhcp-72-163-184-204.cisco.com
72.163.185.8	A+PTR	dhcp-72-163-185-8.cisco.com
72.163.185.84	A	dhcp-72-163-185-84.cisco.com
72.163.185.123	A	dhcp-72-163-185-123.cisco.com