Shanghai Huishi banquet itinerary code can't go anywhere within seven days?

Yes 7 days will not count until 4 hours after you return to your destination, so if you have been to that place after 7 days and left for more than 4 hours, the travel code will be automatically deleted. If not, the original city will be displayed. Huishi banquet itinerary code can go within seven days. Travel code, that is, communication big data travel card, is a free inquiry service provided by ICT Institute in collaboration with China Telecom, China Mobile and China Unicom.