Subnets

/28 = Subnet Mask 255.255.255.240

Network	IP Range	RB IP	Broadcast
.0	.1-.14	.14	.15
.16	.17-.30	.30	.31
.32	.33-.46	.46	.47
.48	.49-.62	.62	.63
.64	.65-.78	.78	.79
.80	.81-.94	.94	.95
.96	.97-.110	.110	.111
.112	.113-.126	.126	.127
.128	.129-.142	.142	.143
.144	.145-.158	.158	.159
.160	.161-.174	.174	.175
.176	.177-.190	.190	.191
.192	.193-.206	.206	.207
.208	.209-.222	.222	.223
.224	.225-.238	.238	.239
.240	.241-.254	.254	.255

/27 = Subnet Mask 255.255.255.224

Network	IP Range	RB IP	Broadcast
0	.1-.30	.30	.31
0.32	.33-.62	.62	.63
0.64	.65-.94	.94	.95
0.96	.97-.126	.126	.127
0.128	.129-.158	.158	.159
0.16	.161-.190	.190	.191
0.192	.193-.222	.222	.223
0.224	.225-.254	.254	.255

/26 = Subnet Mask 255.255.255.192

Network	IP Range	RB IP	Broadcast
.0	.1-.62	.62	.63
.64	.65-.126	.62	.127
.128	.129-.190	.190	.191
.192	.193-.254	.254	.255

/25 = Subnet Mask 255.255.255.128

Network	IP Range	RB IP	Broadcast
.0	.1-.126	.126	.127
.128	.129-.254	.254	.255