This is not an iPhone or iOS issue.
USSD (Unstructured Supplementary Service Data) codes for mobile devices are specific to each carrier and can vary depending on the country as well. USSD codes are short codes that allow users to access various services and features provided by their mobile carriers. These codes are dialed on the phone's keypad, and when you press the call button, they trigger specific actions or provide information.
Since different carriers have their own set of services and features, the USSD codes used to access them will be unique to each carrier. Furthermore, the same carrier may have different USSD codes for different countries, as their services and offerings can differ based on the local regulations and market conditions.
Some common examples of USSD codes include checking your prepaid balance, activating/deactivating services, checking data usage, and setting up call forwarding, as mentioned in the previous discussion about call forwarding.
If you want to use USSD codes to access specific services or features on your mobile device, you should contact your mobile carrier to obtain the correct codes for your region and plan. They can provide you with a list of the available USSD codes and explain how to use them effectively.
Here are some examples of standard USSD codes that are commonly used by mobile carriers to provide various services and features to their customers:
- Check Account Balance: *#BAL# or *#225# or *#646# or *#3282#
- Recharge/Top-up: *#123# or *#131# or *#111# or *#121#
- Check Data Balance: *#DATA# or *#3282# or *#646# or *#932#
- Check Voice Minutes: *#MIN# or *#646# or *#646# or *#646#
- Check SMS Balance: *#SMS# or *#3282# or *#646# or *#767#
- Enable/Disable Call Waiting: *43# (to enable) or #43# (to disable)
- Enable/Disable Call Forwarding: #21# (to check status) or **21PhoneNumber# (to enable) or ##21# (to disable)
- Check IMEI Number: *#06#
- Activate/Deactivate Data Roaming: *#766# or *#ROM# or *#768# or *#RON#
- Customer Service Helpline: 111 or 123 or 121 or 611 or 911 (varies by carrier)
Please note that the actual USSD codes can vary depending on your specific mobile carrier and country. These examples are meant to give you a general idea of the types of services that can be accessed using USSD codes. It's always best to refer to your carrier's official website or contact their customer support to get the accurate and up-to-date USSD codes for your region and plan.
