Prefix Information
The prefix 990 is part of area code 539 serving Tulsa, Oklahoma.
This exchange contains 10,000 possible phone numbers (539-990-0000 through 539-990-9999).
Phone numbers with prefix 990 in area code 539. Location: Tulsa, Oklahoma.
The prefix 990 is part of area code 539 serving Tulsa, Oklahoma.
This exchange contains 10,000 possible phone numbers (539-990-0000 through 539-990-9999).