Preserving monitor of your iPhone minutes is necessary for managing your telephone plan and avoiding sudden expenses. There are a number of other ways to verify your iPhone minutes, relying in your provider and plan.
You probably have an AT&T plan, you may verify your minutes by dialing 646# or by logging into your on-line account. You probably have a Verizon plan, you may verify your minutes by dialing 611 or by logging into your on-line account. You probably have a T-Cell plan, you may verify your minutes by dialing #932# or by logging into your on-line account.