Prefix Information
The prefix 638 is part of area code 559 serving Fresno, California.
This exchange contains 10,000 possible phone numbers (559-638-0000 through 559-638-9999).
Phone numbers with prefix 638 in area code 559. Location: Fresno, California.
The prefix 638 is part of area code 559 serving Fresno, California.
This exchange contains 10,000 possible phone numbers (559-638-0000 through 559-638-9999).