Robtex

Up: 107.14.128.0/18
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Down left: 107.14.128.0/20
Down right: 107.14.144.0/20

IP	Type	Hostname
107.14.138.215	PTR	mta-107-14-138-215.insight.rr.com
107.14.139.32	PTR	mta-107-14-139-32.insight.rr.com
107.14.139.33	PTR	mta-107-14-139-33.insight.rr.com
107.14.139.96	PTR	mta-107-14-139-96.insight.rr.com
107.14.139.97	PTR	mta-107-14-139-97.insight.rr.com
107.14.139.129	PTR	mta-107-14-139-129.insight.rr.com
107.14.139.161	PTR	mta-107-14-139-161.insight.rr.com
107.14.139.194	PTR	mta-107-14-139-194.insight.rr.com
107.14.139.227	PTR	mta-107-14-139-227.insight.rr.com
107.14.141.74	PTR	mta-107-14-141-74.insight.rr.com
107.14.141.112	PTR	mta-107-14-141-112.insight.rr.com
107.14.143.84	PTR	mta-107-14-143-84.insight.rr.com
107.14.154.215	PTR	mta-107-14-154-215.insight.rr.com