Robtex

Up: 64.31.240.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 64.31.240.0/25
Down right: 64.31.240.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.31.240.8	PTR	static-240-8.bektel.com
64.31.240.11	PTR	ott-240-11.bektel.com
64.31.240.13	PTR	ott-240-13.bektel.com
64.31.240.21	PTR	ott-240-21.bektel.com
64.31.240.33	PTR	ott-240-33.bektel.com
64.31.240.38	PTR	ott-240-38.bektel.com
64.31.240.40	PTR	ott-240-40.bektel.com
64.31.240.47	PTR	ott-240-47.bektel.com
64.31.240.51	PTR	ott-240-51.bektel.com
64.31.240.65	PTR	ott-240-65.bektel.com
64.31.240.67	PTR	ott-240-67.bektel.com
64.31.240.68	PTR	ott-240-68.bektel.com
64.31.240.75	PTR	ott-240-75.bektel.com
64.31.240.81	PTR	ott-240-81.bektel.com
64.31.240.82	PTR	ott-240-82.bektel.com
64.31.240.106	PTR	static-240-106.bektel.com
64.31.240.123	A	bektv.com
64.31.240.132	A+PTR	sbc.voice.bekvirtual.com
64.31.240.141	A	voice.bekvirtual.com
64.31.240.142	A	voice.bekvirtual.com
64.31.240.148	PTR	static-240-148.bektel.com
64.31.240.152	PTR	static-240-152.bektel.com
64.31.240.156	PTR	static-240-156.bektel.com
64.31.240.176	PTR	dhcp-240-176.bektel.com
64.31.240.183	PTR	dhcp-240-183.bektel.com
64.31.240.190	A+PTR	beklive.bektel.com
64.31.240.193	A	bekprotect.com
64.31.240.204	PTR	static-240-204.bektel.com
64.31.240.209	A+PTR	ookla.bektel.com
64.31.240.214	PTR	static-240-214.bektel.com
64.31.240.223	PTR	beksports.com
64.31.240.232	PTR	static-240-232.bektel.com
64.31.240.241	A+PTR	dns1.bektel.com
64.31.240.242	A+PTR	dns2.bektel.com
64.31.240.243	A+PTR	mail.bektel.coop
64.31.240.243	A	bektel.coop
64.31.240.243	A	mail.bekbusiness.com
64.31.240.244	A+PTR	rwhois.bektel.com
64.31.240.247	PTR	static-240-247.bektel.com
64.31.240.251	PTR	static-240-251.bektel.com
64.31.240.251	A	hackmanfarming.com
64.31.240.251	A	mail.hackmanfarming.com
64.31.240.253	PTR	static-240-253.bektel.com