IPv4 prefix

77.37.128.0/17

IP Prefix (CIDR)

77.37.128.0/17

Subnet Mask

255.255.128.0

Address Count

32,768

IP Range

77.37.128.0 - 77.37.255.255

Subnet calculator

Calculate subnet details

Registered Owner

Handle

ROSTELECOM-MNT

Country

Russian Federation (RU)

Registry

RIPENCC

Registered Prefixes

77.37.128.0/19 (77.37.128.0 - 77.37.159.255)
77.37.160.0/21 (77.37.160.0 - 77.37.167.255)
77.37.168.0/21 (77.37.168.0 - 77.37.175.255)
77.37.176.0/20 (77.37.176.0 - 77.37.191.255)
77.37.192.0/19 (77.37.192.0 - 77.37.223.255)
77.37.224.0/20 (77.37.224.0 - 77.37.239.255)
77.37.240.0/21 (77.37.240.0 - 77.37.247.255)
77.37.248.0/29 (77.37.248.0 - 77.37.248.7)
77.37.248.8/29 (77.37.248.8 - 77.37.248.15)
77.37.248.16/28 (77.37.248.16 - 77.37.248.31)
77.37.248.32/27 (77.37.248.32 - 77.37.248.63)
77.37.248.64/26 (77.37.248.64 - 77.37.248.127)
77.37.248.128/25 (77.37.248.128 - 77.37.248.255)
77.37.249.0/24 (77.37.249.0 - 77.37.249.255)
77.37.250.0/23 (77.37.250.0 - 77.37.251.255)
77.37.252.0/23 (77.37.252.0 - 77.37.253.255)
77.37.254.0/23 (77.37.254.0 - 77.37.255.255)

Delegated Prefix

77.37.128.0/17 (77.37.128.0 - 77.37.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
77.37.128.0/17	Exact	AS42610	PJSC Rostelecom	Russian Federation (RU)	77.37.128.0	77.37.255.255