Prefix Information
The prefix 991 is part of area code 810 serving Flint, Michigan.
This exchange contains 10,000 possible phone numbers (810-991-0000 through 810-991-9999).
Phone numbers with prefix 991 in area code 810. Location: Flint, Michigan.
The prefix 991 is part of area code 810 serving Flint, Michigan.
This exchange contains 10,000 possible phone numbers (810-991-0000 through 810-991-9999).