Prefix Information
The prefix 503 is part of area code 985 serving Houma, Louisiana.
This exchange contains 10,000 possible phone numbers (985-503-0000 through 985-503-9999).
Phone numbers with prefix 503 in area code 985. Location: Houma, Louisiana.
The prefix 503 is part of area code 985 serving Houma, Louisiana.
This exchange contains 10,000 possible phone numbers (985-503-0000 through 985-503-9999).