Prefix Information
The prefix 137 is part of area code 240 serving Germantown, Maryland.
This exchange contains 10,000 possible phone numbers (240-137-0000 through 240-137-9999).
Phone numbers with prefix 137 in area code 240. Location: Germantown, Maryland.
The prefix 137 is part of area code 240 serving Germantown, Maryland.
This exchange contains 10,000 possible phone numbers (240-137-0000 through 240-137-9999).