Prefix Information
The prefix 688 is part of area code 918 serving Tulsa, Oklahoma.
This exchange contains 10,000 possible phone numbers (918-688-0000 through 918-688-9999).
Phone numbers with prefix 688 in area code 918. Location: Tulsa, Oklahoma.
The prefix 688 is part of area code 918 serving Tulsa, Oklahoma.
This exchange contains 10,000 possible phone numbers (918-688-0000 through 918-688-9999).