Claude, you wouldn't have to give up your area code or phone number. There are 2 streets in St. Clair Shores [[North and South Colonial Court, at the north end of Morningside Dr.) that are in the 313 area code. These 2 streets happen to be south of the Milk River, and can only be gotten to from GPW or GPS.

I doubt that AT&T would change any phone numbers if there was a county change for any of the Pointes. Wayne County alread uses the 313 and 734 area codes [[734 is used by other counties)... so having 2 area codes for Macomb County is no biggie...