Prefix Information
The prefix 523 is part of area code 878 serving Pittsburgh, Pennsylvania.
This exchange contains 10,000 possible phone numbers (878-523-0000 through 878-523-9999).
Phone numbers with prefix 523 in area code 878. Location: Pittsburgh, Pennsylvania.
The prefix 523 is part of area code 878 serving Pittsburgh, Pennsylvania.
This exchange contains 10,000 possible phone numbers (878-523-0000 through 878-523-9999).