code: def info(self):
          
          b = self.bin()
          for i in range(len(b), 0, -1):
              if b[:i] in self._range[self.v]:
                  return self._range[self.v][b[:i]]
          return 'UNKNOWN'
docs: Show IANA allocation information for the current IP address.
  
          >>> ip = IP("127.0.0.1")
          >>> print(ip.info())
          LOOPBACK