To get your STAC, you should speak to your previous provider. Or you can text ‘STAC’ to 75075. Check your old provider’s guidance, as they may ask for your date of birth too.
A STAC only lasts 30 days. So, if it expires, you’ll need to get a new one. We can’t check when your STAC was generated, but your old provider can. So, get in touch with them if you need to check.