You Do Need power plug adapter while traveling from Côte d'Ivoire (Ivory Coast) to Antigua and Barbuda.

Here is Why You Need An Adapter

The outlet and plug type used in Antigua and Barbuda are A and B and in Côte d'Ivoire (Ivory Coast) are C and E. This is how they look like.

Côte d'Ivoire (Ivory Coast)

In Côte d'Ivoire (Ivory Coast), outlets of type C and E are in use.

Type C

Type E

Antigua and Barbuda

In Antigua and Barbuda, outlets of type A and B are in use.

Type A

Type B