Only one of the largest telecom operators, Megafon, can use the service called "Black List". With the help of the service, subscribers will be able to block the reception of unwanted calls and SMS messages. In order to use the list, connect it to a special number and indicate the required numbers.
Instructions
Step 1
Before using the "Black List" service, activate it. Just dial one of the presented numbers: for example, call the short number 5130. In addition, Megafon network clients have the opportunity to send a USSD request * 130 #. The operator must first receive and process the request, and then send the subscriber two different SMS (they will arrive on the mobile within a couple of minutes). One of these messages will contain information about the successful ordering of the service, and from the second it will be possible to find out that the "Black List" was connected (or not connected for some reason). Immediately after activation, the client will be able to edit his list (add numbers there, view them or delete them).
Step 2
Now follow the instructions that will allow you to add the desired number to the blacklist. To replenish the list, dial on your mobile phone the number of the special USSD command * 130 * + 79XXXXXXXXX # or send an SMS message containing the + symbol and also the subscriber's number. Please note that all numbers will need to be specified in ten-digit format: in the form 79xxxxxxxx. If the phone number is incorrectly specified, the request will not be sent.
Step 3
After the procedure for replenishing the list, its viewing will also be available (you can check which numbers are already in the list, and which ones have yet to be added). To see the contents of the blacklist, use the already indicated number 5130: send a message to it with the text INF. It is also possible to send a request * 130 * 3 #. To delete any of the numbers, dial on the keyboard of your mobile USSD command * 130 * 079XXXXXXXXX #. In addition, the operator allows you to clear the list not gradually, but all at once: just send a USSD request * 130 * 6 #.