Prefix Information
The prefix 991 is part of area code 623 serving Glendale, Arizona.
This exchange contains 10,000 possible phone numbers (623-991-0000 through 623-991-9999).
Phone numbers with prefix 991 in area code 623. Location: Glendale, Arizona.
The prefix 991 is part of area code 623 serving Glendale, Arizona.
This exchange contains 10,000 possible phone numbers (623-991-0000 through 623-991-9999).