Robtex

Up: 72.171.8.0/21
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Down left: 72.171.8.0/23
Down right: 72.171.10.0/23

IP	Type	Hostname
72.171.8.0	PTR	host721710008.direcway.com
72.171.8.2	PTR	host721710028.direcway.com
72.171.8.47	PTR	host7217100478.direcway.com
72.171.8.49	PTR	host7217100498.direcway.com
72.171.9.15	PTR	host7217100159.direcway.com
72.171.9.23	PTR	host7217100239.direcway.com
72.171.9.74	PTR	host7217100749.direcway.com
72.171.9.109	PTR	host72171001099.direcway.com
72.171.9.146	PTR	host72171001469.direcway.com
72.171.9.175	PTR	host72171001759.direcway.com
72.171.9.177	PTR	host72171001779.direcway.com
72.171.9.220	PTR	host72171002209.direcway.com
72.171.9.236	PTR	host72171002369.direcway.com
72.171.9.249	PTR	host72171002499.direcway.com
72.171.9.251	PTR	host72171002519.direcway.com
72.171.10.10	PTR	host72171001010.direcway.com
72.171.10.11	PTR	host72171001110.direcway.com
72.171.10.35	PTR	host72171003510.direcway.com
72.171.10.46	PTR	host72171004610.direcway.com
72.171.10.106	PTR	host721710010610.direcway.com
72.171.10.107	PTR	host721710010710.direcway.com
72.171.10.112	PTR	host721710011210.direcway.com
72.171.10.172	PTR	host721710017210.direcway.com
72.171.10.182	PTR	host721710018210.direcway.com
72.171.10.183	PTR	host721710018310.direcway.com
72.171.10.211	PTR	host721710021110.direcway.com
72.171.10.227	PTR	host721710022710.direcway.com
72.171.10.240	PTR	host721710024010.direcway.com
72.171.11.123	PTR	host721710012311.direcway.com