Robtex

Up: 72.18.88.0/21
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Down left: 72.18.88.0/23
Down right: 72.18.90.0/23

IP	Type	Hostname
72.18.88.8	PTR	host-72-18-88-8.dashcommunications.com
72.18.88.18	PTR	host-72-18-88-18.dashcommunications.com
72.18.88.32	PTR	host-72-18-88-32.dashcommunications.com
72.18.88.43	A	smtp.worthamsurgery.com
72.18.88.196	PTR	host-72-18-88-196.dashcommunications.com
72.18.89.34	PTR	host-72-18-89-34.dashcommunications.com
72.18.89.78	PTR	host-72-18-89-78.dashcommunications.com
72.18.89.87	PTR	host-72-18-89-87.dashcommunications.com
72.18.89.92	PTR	host-72-18-89-92.dashcommunications.com
72.18.89.101	PTR	host-72-18-89-101.dashcommunications.com
72.18.89.103	PTR	host-72-18-89-103.dashcommunications.com
72.18.89.109	PTR	host-72-18-89-109.dashcommunications.com
72.18.89.158	PTR	host-72-18-89-158.dashcommunications.com
72.18.89.175	PTR	host-72-18-89-175.dashcommunications.com
72.18.89.179	PTR	host-72-18-89-179.dashcommunications.com
72.18.89.190	PTR	host-72-18-89-190.dashcommunications.com
72.18.89.204	PTR	host-72-18-89-204.dashcommunications.com
72.18.89.222	PTR	host-72-18-89-222.dashcommunications.com
72.18.89.250	PTR	host-72-18-89-250.dashcommunications.com
72.18.89.252	PTR	host-72-18-89-252.dashcommunications.com