IP Range Calculator

Type in the start and end addresses of an arbitrary network range, and it will be expanded to an "aligned" range that can be expressed in CIDR notation:

Start address: = 01011111110100011101000000000000
End address: = 01011111110100011101011111111111
This is a range of 2048 addresses

... aligning the range ...

New start:95.209.208.0 = 01011111110100011101000000000000
New end:95.209.215.255 = 01011111110100011101011111111111
This is a range of 2048 addresses

Resulting network range (in CIDR notation): 95.209.208.0/21

I had to expand your range by 0 addresses, or 0%.