Prefix Information
The prefix 428 is part of area code 445 serving Philadelphia, Pennsylvania.
This exchange contains 10,000 possible phone numbers (445-428-0000 through 445-428-9999).
Phone numbers with prefix 428 in area code 445. Location: Philadelphia, Pennsylvania.
The prefix 428 is part of area code 445 serving Philadelphia, Pennsylvania.
This exchange contains 10,000 possible phone numbers (445-428-0000 through 445-428-9999).