Robtex

Up: 198.41.220.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 198.41.221.0/25
Down right: 198.41.221.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.41.221.129	A	globalgatewaye4.firstdata.com
198.41.221.129	A	globalgatewaye4.firstdata.com.cdn.cloudflare.net
198.41.221.129	A	api.globalgatewaye4.firstdata.com.cdn.cloudflare.net
198.41.221.130	A	globalgatewaye4.firstdata.com
198.41.221.130	A	globalgatewaye4.firstdata.com.cdn.cloudflare.net
198.41.221.130	A	api.globalgatewaye4.firstdata.com.cdn.cloudflare.net