Prefix Information
The prefix 931 is part of area code 539 serving Tulsa, Oklahoma.
This exchange contains 10,000 possible phone numbers (539-931-0000 through 539-931-9999).
Phone numbers with prefix 931 in area code 539. Location: Tulsa, Oklahoma.
The prefix 931 is part of area code 539 serving Tulsa, Oklahoma.
This exchange contains 10,000 possible phone numbers (539-931-0000 through 539-931-9999).