Prefix Information
The prefix 103 is part of area code 773 serving Chicago, Illinois.
This exchange contains 10,000 possible phone numbers (773-103-0000 through 773-103-9999).
Phone numbers with prefix 103 in area code 773. Location: Chicago, Illinois.
The prefix 103 is part of area code 773 serving Chicago, Illinois.
This exchange contains 10,000 possible phone numbers (773-103-0000 through 773-103-9999).