Phone number from account number

[Mercer]

Is there a way to get my phone number. If I only have my account number. It’s a sim used for internet only so device has no functionality to receive texts. Thanks 

[Geluk]

If SIM is in a 4G/5G router, go into Router settings and there's normally a page allowing

you to send/receive texts. Have it on my current TP LINK router, and on my previous HUAWEI one.