The area code 668 is not a valid area code in the United States. However, it is a valid area code in Oujda, which is located northeast of Morocco.
Calls that are received from area code 668 can be traced back to telemarketers, bill collectors and surveyors. The 668 area code is used to disguise the valid phone number, making it impossible to pinpoint the call or track the business placing the call. Phone calls and text messages received from this area code can be reported and added to the fake number list. Scam artists are also known to use invalid telephone numbers.