157.7.140.0-157.7.140.31 157.7.140.0/27
157.7.140.32-157.7.140.47 157.7.140.32/28
157.7.140.48-157.7.140.55 157.7.140.48/29
157.7.140.56-157.7.140.57 157.7.140.56/31