SUPPLEMENT DATED DECEMBER 4, 2009

TO PROSPECTUS DATED MAY 1, 2009

FOR KEYPORT ADVISOR

and

TO PROSPECTUS DATED DECEMBER 31, 2003

FOR KEYPORT ADVISOR CHARTER

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

KEYPORT VARIABLE ACCOUNT A

This supplement contains information regarding a change to an investment option that is available under your Contract.

The name of The Alger American Fund has been changed to The Alger Portfolios. In addition, the name and class of the following investment option has changed to:

Old Name and Class	New Name and Class
Alger American SmallCap Growth Portfolio, Class O	Alger Small Cap Growth Portfolio, Class I-2

Please retain this supplement with your prospectus for future reference.

Keyport(US) Alger 12/09