where is 120 area code
The 120 area code is not located in the United States. The 120 area code is actually a country code for parts of Nicaragua.
You can check out where is that area code located thru http://www.phonecodearea.com .
You can trace it thru the help of http://www.getmycaller.com/.
With http://callerrevealer.com/ you can locate where 120 is.