SUPPLEMENT DATED FEBRUARY 26, 2010

TO PROSPECTUSES DATED DECEMBER 31, 2003

FOR KEYPORT ADVISOR OPTIMA AND KEYPORT ADVISOR CHARTER

ISSUED BY SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)

KEYPORT VARIABLE ACCOUNT A

Effective April 30, 2010, each portfolio of the AIM Variable Insurance Funds will change their name as follows:

Current Name	New Name
AIM V.I. Capital Appreciation Fund	Invesco V.I. Capital Appreciation Fund
AIM V.I. Core Equity Fund	Invesco V.I. Core Equity Fund

The name of AIM Variable Insurance Funds will also be changing to: AIM Variable Insurance Funds (Invesco Variable Insurance Funds).

Please retain this supplement with your prospectus for future reference.

Advisor Charter, Advisor Optima(US) 2/10