IPv4 prefix

77.54.0.0/16

IP Prefix (CIDR): 77.54.0.0/16
Subnet Mask: 255.255.0.0
Address Count: 65,536
IP Range: 77.54.0.0 - 77.54.255.255
Subnet calculator: Calculate subnet details

Registered Owners

Registration 1 of 2

Owner: RIPE-NCC-MANAGED-ADDRESS-BLOCK
Registry: RIPENCC
Registered Prefix: 77.0.0.0/8 (77.0.0.0 - 77.255.255.255)
Delegated Prefix: 77.91.208.0/24 (77.91.208.0 - 77.91.208.255)

Registration 2 of 2

Handle: AS12353-MNT
Country: Portugal (PT)
Registry: RIPENCC
Registered Prefixes: 77.54.0.0/18 (77.54.0.0 - 77.54.63.255)
77.54.64.0/18 (77.54.64.0 - 77.54.127.255)
77.54.128.0/19 (77.54.128.0 - 77.54.159.255)
77.54.168.0/29 (77.54.168.0 - 77.54.168.7)
77.54.168.8/29 (77.54.168.8 - 77.54.168.15)
77.54.168.16/29 (77.54.168.16 - 77.54.168.23)
77.54.168.24/29 (77.54.168.24 - 77.54.168.31)
77.54.168.32/29 (77.54.168.32 - 77.54.168.39)
77.54.168.40/29 (77.54.168.40 - 77.54.168.47)
77.54.168.48/29 (77.54.168.48 - 77.54.168.55)
77.54.168.56/29 (77.54.168.56 - 77.54.168.63)
77.54.168.64/29 (77.54.168.64 - 77.54.168.71)
77.54.168.72/29 (77.54.168.72 - 77.54.168.79)
77.54.168.80/29 (77.54.168.80 - 77.54.168.87)
77.54.168.88/29 (77.54.168.88 - 77.54.168.95)
77.54.168.96/29 (77.54.168.96 - 77.54.168.103)
77.54.168.104/29 (77.54.168.104 - 77.54.168.111)
77.54.168.112/30 (77.54.168.112 - 77.54.168.115)
77.54.168.116/30 (77.54.168.116 - 77.54.168.119)
77.54.168.120/29 (77.54.168.120 - 77.54.168.127)
77.54.169.0/29 (77.54.169.0 - 77.54.169.7)
77.54.169.8/30 (77.54.169.8 - 77.54.169.11)
77.54.169.12/30 (77.54.169.12 - 77.54.169.15)
77.54.169.16/28 (77.54.169.16 - 77.54.169.31)
77.54.169.32/29 (77.54.169.32 - 77.54.169.39)
77.54.169.40/29 (77.54.169.40 - 77.54.169.47)
77.54.169.48/29 (77.54.169.48 - 77.54.169.55)
77.54.169.56/29 (77.54.169.56 - 77.54.169.63)
77.54.169.64/29 (77.54.169.64 - 77.54.169.71)
77.54.169.72/29 (77.54.169.72 - 77.54.169.79)
77.54.169.80/29 (77.54.169.80 - 77.54.169.87)
77.54.169.88/29 (77.54.169.88 - 77.54.169.95)
77.54.169.96/29 (77.54.169.96 - 77.54.169.103)
77.54.169.104/29 (77.54.169.104 - 77.54.169.111)
77.54.169.112/30 (77.54.169.112 - 77.54.169.115)
77.54.169.116/30 (77.54.169.116 - 77.54.169.119)
77.54.169.120/30 (77.54.169.120 - 77.54.169.123)
77.54.169.124/30 (77.54.169.124 - 77.54.169.127)
77.54.169.128/28 (77.54.169.128 - 77.54.169.143)
77.54.169.144/29 (77.54.169.144 - 77.54.169.151)
77.54.169.152/29 (77.54.169.152 - 77.54.169.159)
77.54.169.160/29 (77.54.169.160 - 77.54.169.167)
77.54.169.168/29 (77.54.169.168 - 77.54.169.175)
77.54.169.176/28 (77.54.169.176 - 77.54.169.191)
77.54.169.192/30 (77.54.169.192 - 77.54.169.195)
77.54.169.196/30 (77.54.169.196 - 77.54.169.199)
77.54.169.200/29 (77.54.169.200 - 77.54.169.207)
77.54.169.208/29 (77.54.169.208 - 77.54.169.215)
77.54.169.216/29 (77.54.169.216 - 77.54.169.223)
77.54.169.224/29 (77.54.169.224 - 77.54.169.231)
77.54.169.232/29 (77.54.169.232 - 77.54.169.239)
77.54.169.240/29 (77.54.169.240 - 77.54.169.247)
77.54.169.248/29 (77.54.169.248 - 77.54.169.255)
77.54.173.0/29 (77.54.173.0 - 77.54.173.7)
77.54.173.8/29 (77.54.173.8 - 77.54.173.15)
77.54.173.16/28 (77.54.173.16 - 77.54.173.31)
77.54.173.32/28 (77.54.173.32 - 77.54.173.47)
77.54.173.48/29 (77.54.173.48 - 77.54.173.55)
77.54.173.56/29 (77.54.173.56 - 77.54.173.63)
77.54.173.64/29 (77.54.173.64 - 77.54.173.71)
77.54.173.72/29 (77.54.173.72 - 77.54.173.79)
77.54.173.80/29 (77.54.173.80 - 77.54.173.87)
77.54.173.88/29 (77.54.173.88 - 77.54.173.95)
77.54.173.96/29 (77.54.173.96 - 77.54.173.103)
77.54.173.104/29 (77.54.173.104 - 77.54.173.111)
77.54.173.112/29 (77.54.173.112 - 77.54.173.119)
77.54.173.120/29 (77.54.173.120 - 77.54.173.127)
77.54.173.128/29 (77.54.173.128 - 77.54.173.135)
77.54.173.136/29 (77.54.173.136 - 77.54.173.143)
77.54.173.144/30 (77.54.173.144 - 77.54.173.147)
77.54.173.148/30 (77.54.173.148 - 77.54.173.151)
77.54.173.152/29 (77.54.173.152 - 77.54.173.159)
77.54.173.160/29 (77.54.173.160 - 77.54.173.167)
77.54.173.168/29 (77.54.173.168 - 77.54.173.175)
77.54.173.176/28 (77.54.173.176 - 77.54.173.191)
77.54.173.192/29 (77.54.173.192 - 77.54.173.199)
77.54.173.200/29 (77.54.173.200 - 77.54.173.207)
77.54.173.208/29 (77.54.173.208 - 77.54.173.215)
77.54.173.216/29 (77.54.173.216 - 77.54.173.223)
77.54.173.224/29 (77.54.173.224 - 77.54.173.231)
77.54.173.232/29 (77.54.173.232 - 77.54.173.239)
77.54.173.240/28 (77.54.173.240 - 77.54.173.255)
77.54.174.0/29 (77.54.174.0 - 77.54.174.7)
77.54.174.8/29 (77.54.174.8 - 77.54.174.15)
77.54.174.16/29 (77.54.174.16 - 77.54.174.23)
77.54.174.24/29 (77.54.174.24 - 77.54.174.31)
77.54.174.32/28 (77.54.174.32 - 77.54.174.47)
77.54.174.48/29 (77.54.174.48 - 77.54.174.55)
77.54.174.56/29 (77.54.174.56 - 77.54.174.63)
77.54.174.64/27 (77.54.174.64 - 77.54.174.95)
77.54.174.96/28 (77.54.174.96 - 77.54.174.111)
77.54.174.112/29 (77.54.174.112 - 77.54.174.119)
77.54.174.120/29 (77.54.174.120 - 77.54.174.127)
77.54.174.128/27 (77.54.174.128 - 77.54.174.159)
77.54.174.160/30 (77.54.174.160 - 77.54.174.163)
77.54.174.164/30 (77.54.174.164 - 77.54.174.167)
77.54.174.168/29 (77.54.174.168 - 77.54.174.175)
77.54.174.176/29 (77.54.174.176 - 77.54.174.183)
77.54.174.184/30 (77.54.174.184 - 77.54.174.187)
Delegated Prefix: 77.54.0.0/16 (77.54.0.0 - 77.54.255.255)

These results are partial. Additional registration records were omitted.

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
77.54.0.0/16	Exact	AS12353	Vodafone Portugal - Communicacoes Pessoais S.A.	Portugal (PT)	77.54.0.0	77.54.255.255