Prefix Information
The prefix 523 is part of area code 267 serving Philadelphia, Pennsylvania.
This exchange contains 10,000 possible phone numbers (267-523-0000 through 267-523-9999).
Phone numbers with prefix 523 in area code 267. Location: Philadelphia, Pennsylvania.
The prefix 523 is part of area code 267 serving Philadelphia, Pennsylvania.
This exchange contains 10,000 possible phone numbers (267-523-0000 through 267-523-9999).