This is a simple Chrome extension that will check the response from the T-Mobile account page and display your SOC code simply and easily without the need to use inspect element. This app is unofficial and not affiliated in any way with T-Mobile.
To use, install the extension, then login to your T-Mobile account. From there, simply click the T icon in your extensions bar.
No data is collected or stored at all in this extension, only displayed.
Special thanks to community member Soul for assisting with the code.