def validate_format(number):
    length = len(number)
    if length == 14:
        if (re.match(formats[0], number)):
            return True
        return False
    if length == 12:
        if (re.match(formats[1], number)):
            return True
        return False
    if length == 11:
        if (re.match(formats[2], number)):
            return True
        return False
    if length == 10:
        if (re.match(formats[3], number)):
            return True
        return False
    return False