Hello, I also applied for the same Unicom card as you. I am from Nanjing, too. I found a card called saving traffic. I'm out of mine, and I have a 3g campus card package.

If your card contains traffic in the province, the traffic in the province can only be deducted by surfing the Internet in cities in the province. How many megabytes of traffic does your package contain? It can be judged according to the package used by your number and whether there is a traffic discount in your package at present. For details, please dial 100 10 with your number and ask the staff to check it for you.