It is important to clarify the current reality of the network:

The phone number is typically printed on the back of the plastic card that held your SIM chip when you first bought it. SMS History:

If you are using an Oxxo Cel SIM card, particularly in a basic or older 3G phone, finding your own number isn't always immediately obvious since it isn't always printed clearly on the card holder.

The most immediate way is to call or send a standard SMS to another phone nearby. Your 10-digit number will appear on the recipient's screen. Important Service Details Customer Support

Most phones store the number directly on the SIM card, which you can view in the system menu: About phone SIM status . Your number should appear under "My phone number". 2. Contact Customer Service

: If that hadn't worked, the cashier mentioned he could simply dial *235 from his OXXO Cel line to reach customer service, or even send a WhatsApp to 55 8665 5866 for help.