80104: Phone Number Already In ServicePositive FeedbackNegative FeedbackWARNING: 80104warning-80104 page anchorPositive FeedbackNegative FeedbackWARNING Warningwarning page anchorPositive FeedbackNegative Feedback Phone Number Already In Servicephone-number-already-in-service page anchorPositive FeedbackNegative FeedbackExample Message: PhoneNumber has already been added to Service