IPv4 Address:-
IPv6 Address:-
Service Provider:-
SSL Information:-
HTTP Protocol:-
Database:-
Web:-
IP Subnet Calculator
This page will calculate all valid subnets and ranges from an IP address you give.
Output from Calculator
All subnets for 129.128.1.1 are:
CIDR block
IP range (network - broadcast)
Subnet Mask
IP Quantity
129.128.1.1/32
129.128.1.1 - 129.128.1.1
255.255.255.255
1
129.128.1.0/31
129.128.1.0 - 129.128.1.1
255.255.255.254
2
129.128.1.0/30
129.128.1.0 - 129.128.1.3
255.255.255.252
4
129.128.1.0/29
129.128.1.0 - 129.128.1.7
255.255.255.248
8
129.128.1.0/28
129.128.1.0 - 129.128.1.15
255.255.255.240
16
129.128.1.0/27
129.128.1.0 - 129.128.1.31
255.255.255.224
32
129.128.1.0/26
129.128.1.0 - 129.128.1.63
255.255.255.192
64
129.128.1.0/25
129.128.1.0 - 129.128.1.127
255.255.255.128
128
129.128.1.0/24
129.128.1.0 - 129.128.1.255
255.255.255.0
256
129.128.0.0/23
129.128.0.0 - 129.128.1.255
255.255.254.0
512
129.128.0.0/22
129.128.0.0 - 129.128.3.255
255.255.252.0
1024
129.128.0.0/21
129.128.0.0 - 129.128.7.255
255.255.248.0
2048
129.128.0.0/20
129.128.0.0 - 129.128.15.255
255.255.240.0
4096
129.128.0.0/19
129.128.0.0 - 129.128.31.255
255.255.224.0
8192
129.128.0.0/18
129.128.0.0 - 129.128.63.255
255.255.192.0
16384
129.128.0.0/17
129.128.0.0 - 129.128.127.255
255.255.128.0
32768
129.128.0.0/16
129.128.0.0 - 129.128.255.255
255.255.0.0
65536
129.128.0.0/15
129.128.0.0 - 129.129.255.255
255.254.0.0
131072
129.128.0.0/14
129.128.0.0 - 129.131.255.255
255.252.0.0
262144
129.128.0.0/13
129.128.0.0 - 129.135.255.255
255.248.0.0
524288
129.128.0.0/12
129.128.0.0 - 129.143.255.255
255.240.0.0
1048576
129.128.0.0/11
129.128.0.0 - 129.159.255.255
255.224.0.0
2097152
129.128.0.0/10
129.128.0.0 - 129.191.255.255
255.192.0.0
4194304
129.128.0.0/9
129.128.0.0 - 129.255.255.255
255.128.0.0
8388608
129.0.0.0/8
129.0.0.0 - 129.255.255.255
255.0.0.0
16777216
128.0.0.0/7
128.0.0.0 - 129.255.255.255
254.0.0.0
33554432
128.0.0.0/6
128.0.0.0 - 131.255.255.255
252.0.0.0
67108864
128.0.0.0/5
128.0.0.0 - 135.255.255.255
248.0.0.0
134217728
128.0.0.0/4
128.0.0.0 - 143.255.255.255
240.0.0.0
268435456
128.0.0.0/3
128.0.0.0 - 159.255.255.255
224.0.0.0
536870912
128.0.0.0/2
128.0.0.0 - 191.255.255.255
192.0.0.0
1073741824
128.0.0.0/1
128.0.0.0 - 255.255.255.255
128.0.0.0
2147483648
0.0.0.0/0
0.0.0.0 - 255.255.255.255
0.0.0.0
4294967296
E-mail me
LOGGED IN
