Prefix Information
The prefix 503 is part of area code 806 serving Lubbock, Texas.
This exchange contains 10,000 possible phone numbers (806-503-0000 through 806-503-9999).
Phone numbers with prefix 503 in area code 806. Location: Lubbock, Texas.
The prefix 503 is part of area code 806 serving Lubbock, Texas.
This exchange contains 10,000 possible phone numbers (806-503-0000 through 806-503-9999).