Prefix Information
The prefix 503 is part of area code 432 serving Midland, Texas.
This exchange contains 10,000 possible phone numbers (432-503-0000 through 432-503-9999).
Phone numbers with prefix 503 in area code 432. Location: Midland, Texas.
The prefix 503 is part of area code 432 serving Midland, Texas.
This exchange contains 10,000 possible phone numbers (432-503-0000 through 432-503-9999).