Prefix Information
The prefix 621 is part of area code 445 serving Philadelphia, Pennsylvania.
This exchange contains 10,000 possible phone numbers (445-621-0000 through 445-621-9999).
Phone numbers with prefix 621 in area code 445. Location: Philadelphia, Pennsylvania.
The prefix 621 is part of area code 445 serving Philadelphia, Pennsylvania.
This exchange contains 10,000 possible phone numbers (445-621-0000 through 445-621-9999).