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A class B IP addres is one whose range of the first octet goes from to .

All class B IPs are prefixed by 10 (10000000 = 128 - 10111111 = 191).

Exmples of class B addresses:

  • 128.0.18.0
  • 172.28.47.92
  • 191.255.255.255
  • 163.45.99.16