Robtex

Up: 143.204.8.0/22
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Down left: 143.204.8.0/24
Down right: 143.204.9.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
143.204.8.62	A+PTR	server-143-204-8-62.mxp64.r.cloudfront.net
143.204.9.32	A+PTR	server-143-204-9-32.mxp64.r.cloudfront.net
143.204.9.158	A+PTR	server-143-204-9-158.mxp64.r.cloudfront.net
143.204.9.158	A	urbanmentalhealth.slack.com
143.204.9.158	A	gruszkowo.slack.com