Year 221 (CCXXI) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gratus and Vitellius (or, less frequently, year 974 Ab urbe condita). The denomination 221 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

To call in Senegal, the following format is used:

• xxx xxxx - Calls within an area code
• +221 8xx xxxx - Calls to Dakar from outside Senegal
• +221 9xx xxxx - Calls to other areas from outside Senegal

Year 221 (CCXXI) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gratus and Vitellius (or, less frequently, year 974 Ab urbe condita). The denomination 221 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

To call in Senegal, the following format is used:

• xxx xxxx - Calls within an area code
• +221 8xx xxxx - Calls to Dakar from outside Senegal
• +221 9xx xxxx - Calls to other areas from outside Senegal