header_value_list = ["27.101.101.1", "186.192.18.98", "210.242.154.60"]

for header_vaule in header_value_list:
    self.reinstantiate_phantom('X-Real-IP', header_value)
    self.phantom.get(url_to_site)
    self.phantom.save_screenshot('C:\\test.png') #View screenshot and it only shows the first icon in the loop

def reinstantiate_phantom(self, custom_header_name=None, custom_header_value=None):
        if self.phantom is not None:
            self.phantom.get('javascript:localStorage.clear();')
            self.phantom.delete_all_cookies()
            self.phantom.close()
            self.phantom.quit()
            self.phantom = None

        service = ['--ignore-ssl-errors=true', '--disk-cache=false']
        dcaps = {'handlesAlerts': True, 'javascriptEnabled': True}
        dcaps['phantomjs.page.settings.userAgent'] = (
                "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/53 "
                "(KHTML, like Gecko) Chrome/15.0.87")

        dcaps['phantomjs.page.settings.clearMemoryCaches'] = True

        if custom_header_name is not None and custom_header_value is not None:
            dcaps['phantomjs.page.customHeaders.{0}'.format(custom_header_name)]=custom_header_value

        self.phantom = webdriver.PhantomJS(executable_path=self.config.settings['phantom_js_dir'], desired_capabilities=dcaps, service_args=service)