Robtex

Up: 5.136.0.0/19
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Down left: 5.136.0.0/21
Down right: 5.136.8.0/21

IP	Type	Hostname
5.136.1.2	PTR	5.136.1.2.krsn-nat1.sib.ip.rostelecom.ru
5.136.2.1	PTR	5.136.2.1.krsn-nat1.sib.ip.rostelecom.ru
5.136.2.2	PTR	5.136.2.2.krsn-nat1.sib.ip.rostelecom.ru
5.136.4.0	PTR	5.136.4.0.emln-nat1.sib.ip.rostelecom.ru