Dysgeusia is a condition in which a foul, salty, rancid, or metallic taste sensation will persist in the mouth. Ageusia is the inability to detect any tastes, which is rare. Often, people who feel they have a problem with their sense of taste are experiencing a loss of smell instead of a loss of taste.
The first three fields contain a total of 7 digits that identifies a block of 1,000 telephone numbers assigned to a wireless carrier. These 7 digits, representing the area code, exchange and 1st position of the telephone number, must be matched to the first 7 digits of the prospects telephone number.
1 Area Codes and Numbering. 2  Under the North American Numbering Plan, telephone numbers in the United States, Canada and the Caribbean are structured as a three digit area code, a three digit prefix or code and a four digit line number. Any device requiring interconnection to the public switched telephone network requires an area code, prefix and line number.