Robtex

Up: 115.75.240.0/21
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Down left: 115.75.240.0/23
Down right: 115.75.242.0/23

IP	Type	Hostname
115.75.242.5	PTR	adsl.viettel.vn
115.75.242.20	PTR	adsl.viettel.vn
115.75.242.28	PTR	adsl.viettel.vn
115.75.242.31	PTR	adsl.viettel.vn
115.75.242.45	PTR	adsl.viettel.vn
115.75.242.47	PTR	adsl.viettel.vn
115.75.242.51	PTR	adsl.viettel.vn
115.75.242.79	PTR	adsl.viettel.vn
115.75.242.80	PTR	adsl.viettel.vn
115.75.242.92	PTR	adsl.viettel.vn
115.75.242.101	PTR	adsl.viettel.vn
115.75.242.107	PTR	adsl.viettel.vn
115.75.242.111	PTR	adsl.viettel.vn
115.75.242.131	PTR	adsl.viettel.vn
115.75.242.132	PTR	adsl.viettel.vn
115.75.242.147	PTR	adsl.viettel.vn
115.75.242.159	PTR	adsl.viettel.vn
115.75.242.169	PTR	adsl.viettel.vn
115.75.242.188	PTR	adsl.viettel.vn
115.75.242.226	PTR	adsl.viettel.vn
115.75.242.243	PTR	adsl.viettel.vn