Robtex

Up: 63.106.106.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 63.106.106.0/25
Down right: 63.106.106.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
63.106.106.2	A+PTR	rtp.bd.com
63.106.106.11	A	remotertp.bd.com
63.106.106.15	A+PTR	rtpsmtp01.bd.com
63.106.106.15	A	mail.bd.com
63.106.106.15	A	syringe.bd.com
63.106.106.20	A+PTR	usmail01.bd.com
63.106.106.22	A+PTR	usmail02.bd.com
63.106.106.28	A+PTR	ntstage01sy.bd.com
63.106.106.29	PTR	nasy00im01.bd.com
63.106.106.30	PTR	nasy00im02.bd.com
63.106.106.45	A	mail01.bd.com
63.106.106.46	A	mail02.bd.com
63.106.106.47	A	mail03.bd.com
63.106.106.50	PTR	ntdns3sy.bd.com
63.106.106.50	A	ns.bd.com
63.106.106.105	A+PTR	stgw1.bd.com
63.106.106.117	A	awsego365.bd.com
63.106.106.118	A	awsego365.bd.com
63.106.106.135	A+PTR	rtpsmtp02.bd.com
63.106.106.162	A	lyncdiscover.bd.com
63.106.106.162	A	meet.bd.com
63.106.106.182	A	lyncsip01.bd.com