function compileRangeSubnets (arr) {
  var rangeSubnets = new Array(arr.length)

  for (var i = 0; i < arr.length; i++) {
    rangeSubnets[i] = parseipNotation(arr[i])
  }

  return rangeSubnets
}
Compile `arr` elements into range subnets.

@param {Array} arr
@private