The majority of couples living together or married have their phone service under one account (either because it saves money or its just easier), but what you might not realize is that it is very important that your name is the primary one on the account.
Simply having a phone line on the account will not matter when it comes to ownership – your phone number and call records belong to whoever’s name is on the account and you will need permission from the account holder to even transfer your phone number in the future. By having the account in your name you are insuring that your phone number is 100% yours and that you can access your spouse’s phone records whenever you want. Vice versa, you will also be protecting yourself from your spouse accessing YOUR phone records without your permission.
If your relationship were to ever head to divorce (and we both know divorce statistics are high), proving infidelity can be a huge factor in your favor during divorce court. If you do not have the phone account in your name you will need to file a Motion for Production of Documents with the court and subpoena the phone company for the call logs – not an easy feat. You could also get your spouse to sign a release and hand it to the phone company, but I don’t expect that to happen very often .