Prefix Information
The prefix 257 is part of area code 607 serving Binghamton, New York.
This exchange contains 10,000 possible phone numbers (607-257-0000 through 607-257-9999).
Phone numbers with prefix 257 in area code 607. Location: Binghamton, New York.
The prefix 257 is part of area code 607 serving Binghamton, New York.
This exchange contains 10,000 possible phone numbers (607-257-0000 through 607-257-9999).