Prefix Information
The prefix 503 is part of area code 928 serving Yuma, Arizona.
This exchange contains 10,000 possible phone numbers (928-503-0000 through 928-503-9999).
Phone numbers with prefix 503 in area code 928. Location: Yuma, Arizona.
The prefix 503 is part of area code 928 serving Yuma, Arizona.
This exchange contains 10,000 possible phone numbers (928-503-0000 through 928-503-9999).