The quantity varies from place to place and the business rules are different, so it cannot be changed to Nanjing. If it is a 3G package, it is the same in other provinces and in the local area, and there is no difference. Other packages distinguish Beijing from other provinces. I suggest you call the toll-free number: 10000 and provide the number to see if it can be converted into a music package, so that you can use this original card wherever you are.
I hope my answer is helpful to you. If in doubt, please continue to consult us.