Unicom cards are divided into prepaid cards and postpaid cards. 1, prepaid users do not need to cancel the account, such as you stop recharging the prepaid number, overdue Unicom will automatically recover the right to use the number for cancellation of the account. 2, the postpaid users (including postpaid Internet card) number does not intend to continue to use the number, the number of no contract can take a valid document to the belonging to the Unicom's own business hall to handle the cancellation procedures. 2, the postpaid users (including postpaid Internet card) number does not intend to continue to use the number, there is no contract to take the valid documents to the Unicom's own business hall for cancellation. Warm tips: If you are a postpaid user who does not cancel the account, the monthly rent will be deducted on a monthly basis if the number is not suspended. If there are arrears, generally arrears downtime after 3 months, the number will be canceled, may produce late fees and included in the Unicom blacklist, this is the future for you to apply for Unicom business has an impact, it is recommended that the number is not used to the business hall for canceling the account. You can check the distribution of business halls through the following channels: 1. You can log on to Unicom's online business hall and click on Convenience Service＞Business Hall Query, enter the province, city or keyword to check the distribution of business halls. 2. Log on to the client of the cell phone business hall, More ＞Customer Service ＞Business Hall Distribution Query, select the province or city you want to query, and then query by region; or query by map, list, and then click "Query". If you click the "Query" button, the corresponding query results will appear. You can also query the distribution of business halls through the client homepage "network query"; 3. SMS business halls can also provide information about some business halls in the place where the cell phone number belongs to (including: business hall name, address and telephone number), you can edit "any character" or "command code". "Command code" sent to 10010, the system will return to the main navigation menu of the SMS business hall, you can reply to the corresponding menu number to 10010 according to the prompts, you can carry out the corresponding operation; In addition to the above methods, you can also call the number of the attribution of the 10010 hotline for consultation.