Prefix Information
The prefix 991 is part of area code 208 serving Boise, Idaho.
This exchange contains 10,000 possible phone numbers (208-991-0000 through 208-991-9999).
Phone numbers with prefix 991 in area code 208. Location: Boise, Idaho.
The prefix 991 is part of area code 208 serving Boise, Idaho.
This exchange contains 10,000 possible phone numbers (208-991-0000 through 208-991-9999).