Define a range, return all numbers of range that are NOT in csv data

[KiNeMs]

Am I on the right track here?

# Define Site Ranges Dictionary
_number_ranges = {
    "549StKilda"    : {
        'start'     : 61392697000,
        'end'       : 61392697999,
        'name'      : "549 StKilda Rd"
    },
    "Mulgrave"      : {
        'start'     : 61385849100,
        'end'       : 61385849199,
        'name'      : "Mulgrave"
    },
    "Rhodes"      : {
        'start'     : 61298169000,
        'end'       : 61298169999,
        'name'      : "Rhodes"
    },
}

 
# User Input
userinput = input("Enter the Number Yo")
number = int(userinput)

# Define Find Range Function Range 
#def find_range(n, num_range):
 #   if num_range['start'] <= number <= num_range['end']:
  #      print("Number is a " + num_range['name'] + " Number")
   # else:
    #    print("The number is outside the range")

# find_range(number, _range_549stkilda)

# IS number In Range
def in_range(n, num_range):
    for n in num_range.items():  
        if num_range['start'] <= number <= num_range['end']:
            break
        print("Number is a " + num_range['name'] + " Number")

in_range(number,_number_ranges)