Robtex

Up: 216.83.176.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.83.176.0/23
Down right: 216.83.178.0/23

IP	Type	Hostname
216.83.176.4	PTR	indpr1-t1-0-1-0-2-0.sgns.net
216.83.176.71	A	dishslbosbcp.csgweb.com
216.83.176.73	A+PTR	midhdbcp.convergentcare.com
216.83.176.77	A+PTR	cpgbcp.csgweb.com
216.83.178.8	PTR	dishslbosbcp.csgweb.com
216.83.178.20	A+PTR	estlkbcp.convergentcare.com
216.83.178.24	A+PTR	brthsbcp.convergentcare.com
216.83.178.36	A	mail.smart-invoices.com
216.83.178.51	A	paramountdr.com
216.83.178.51	A	disasterrecovery.paramountdr.com
216.83.178.131	A	jhdr.com
216.83.178.199	A	ibigatea.ibidr.com
216.83.179.79	A	insider-direct.com