IPv4 prefix

161.51.64.0/19

IP Prefix (CIDR): 161.51.64.0/19
Subnet Mask: 255.255.224.0
Address Count: 8,192
IP Range: 161.51.64.0 - 161.51.95.255
Subnet calculator: Calculate subnet details

Registration 1 of 2

Owner: Internet Assigned Numbers Authority
Handle: IANA1-AP
Country: Australia (AU)
Address: see http://www.iana.org.
Registry: APNIC
Registered Prefix: 161.0.0.0/8 (161.0.0.0 - 161.255.255.255)
Delegated Prefix: 161.248.170.0/24 (161.248.170.0 - 161.248.170.255)

Registration 2 of 2

Handle: Eurofiber-MNT
Country: Netherlands (NL)
Registry: RIPENCC
Registered Prefixes: 161.51.64.0/24 (161.51.64.0 - 161.51.64.255)
161.51.65.0/24 (161.51.65.0 - 161.51.65.255)
161.51.66.0/27 (161.51.66.0 - 161.51.66.31)
161.51.66.32/27 (161.51.66.32 - 161.51.66.63)
161.51.66.64/27 (161.51.66.64 - 161.51.66.95)
161.51.66.96/27 (161.51.66.96 - 161.51.66.127)
161.51.66.128/27 (161.51.66.128 - 161.51.66.159)
161.51.66.192/27 (161.51.66.192 - 161.51.66.223)
161.51.66.224/27 (161.51.66.224 - 161.51.66.255)
161.51.67.0/24 (161.51.67.0 - 161.51.67.255)
161.51.68.0/24 (161.51.68.0 - 161.51.68.255)
161.51.69.0/24 (161.51.69.0 - 161.51.69.255)
161.51.70.0/24 (161.51.70.0 - 161.51.70.255)
161.51.71.0/24 (161.51.71.0 - 161.51.71.255)
161.51.72.0/24 (161.51.72.0 - 161.51.72.255)
161.51.73.0/24 (161.51.73.0 - 161.51.73.255)
161.51.74.0/24 (161.51.74.0 - 161.51.74.255)
161.51.75.0/28 (161.51.75.0 - 161.51.75.15)
161.51.75.16/28 (161.51.75.16 - 161.51.75.31)
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161.51.75.64/28 (161.51.75.64 - 161.51.75.79)
161.51.75.96/28 (161.51.75.96 - 161.51.75.111)
161.51.75.128/28 (161.51.75.128 - 161.51.75.143)
161.51.75.144/28 (161.51.75.144 - 161.51.75.159)
161.51.75.160/28 (161.51.75.160 - 161.51.75.175)
161.51.75.176/28 (161.51.75.176 - 161.51.75.191)
161.51.75.192/28 (161.51.75.192 - 161.51.75.207)
161.51.75.208/28 (161.51.75.208 - 161.51.75.223)
161.51.75.224/28 (161.51.75.224 - 161.51.75.239)
161.51.75.240/28 (161.51.75.240 - 161.51.75.255)
161.51.76.0/26 (161.51.76.0 - 161.51.76.63)
161.51.76.64/26 (161.51.76.64 - 161.51.76.127)
161.51.76.128/26 (161.51.76.128 - 161.51.76.191)
161.51.76.192/26 (161.51.76.192 - 161.51.76.255)
161.51.77.0/24 (161.51.77.0 - 161.51.77.255)
161.51.78.0/24 (161.51.78.0 - 161.51.78.255)
161.51.79.0/24 (161.51.79.0 - 161.51.79.255)
161.51.80.0/27 (161.51.80.0 - 161.51.80.31)
161.51.80.32/27 (161.51.80.32 - 161.51.80.63)
161.51.80.64/27 (161.51.80.64 - 161.51.80.95)
161.51.80.96/27 (161.51.80.96 - 161.51.80.127)
161.51.80.128/27 (161.51.80.128 - 161.51.80.159)
161.51.80.160/27 (161.51.80.160 - 161.51.80.191)
161.51.80.192/27 (161.51.80.192 - 161.51.80.223)
161.51.80.224/27 (161.51.80.224 - 161.51.80.255)
161.51.81.0/24 (161.51.81.0 - 161.51.81.255)
161.51.82.0/25 (161.51.82.0 - 161.51.82.127)
161.51.82.128/25 (161.51.82.128 - 161.51.82.255)
161.51.83.0/24 (161.51.83.0 - 161.51.83.255)
161.51.84.0/24 (161.51.84.0 - 161.51.84.255)
161.51.85.0/24 (161.51.85.0 - 161.51.85.255)
161.51.86.0/24 (161.51.86.0 - 161.51.86.255)
161.51.87.0/24 (161.51.87.0 - 161.51.87.255)
161.51.88.0/28 (161.51.88.0 - 161.51.88.15)
161.51.88.16/28 (161.51.88.16 - 161.51.88.31)
161.51.88.32/28 (161.51.88.32 - 161.51.88.47)
161.51.88.48/28 (161.51.88.48 - 161.51.88.63)
161.51.88.64/28 (161.51.88.64 - 161.51.88.79)
161.51.88.80/28 (161.51.88.80 - 161.51.88.95)
161.51.88.96/28 (161.51.88.96 - 161.51.88.111)
161.51.88.112/28 (161.51.88.112 - 161.51.88.127)
161.51.88.128/28 (161.51.88.128 - 161.51.88.143)
161.51.88.144/28 (161.51.88.144 - 161.51.88.159)
161.51.88.160/28 (161.51.88.160 - 161.51.88.175)
161.51.88.176/28 (161.51.88.176 - 161.51.88.191)
161.51.88.192/28 (161.51.88.192 - 161.51.88.207)
161.51.88.208/28 (161.51.88.208 - 161.51.88.223)
161.51.88.224/28 (161.51.88.224 - 161.51.88.239)
161.51.89.0/24 (161.51.89.0 - 161.51.89.255)
161.51.90.0/24 (161.51.90.0 - 161.51.90.255)
161.51.92.0/24 (161.51.92.0 - 161.51.92.255)
161.51.93.0/24 (161.51.93.0 - 161.51.93.255)
161.51.94.0/24 (161.51.94.0 - 161.51.94.255)
161.51.95.0/24 (161.51.95.0 - 161.51.95.255)
Delegated Prefix: 161.51.64.0/19 (161.51.64.0 - 161.51.95.255)

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
161.51.64.0/19	Exact	AS39686	Eurofiber Nederland BV	Netherlands (NL)	161.51.64.0	161.51.95.255