What is still secure with RSA public key?

[hal feinstein]

Number        Size in
Designation	Digits		Prize			When Factored?
RSA-100	100							4/1991
RSA-110	110							4/1992
RSA-120	120							6/1993
RSA-129	129			$100 (cheap)	4/1994
RSA-130	130							4/1996
RSA-140	140							2/1999
RSA-150	150							4/2004
RSA-155	155							8/1999
RSA-160	160							4/2003
RSA-200	200							5/2005
RSA-576	174			$10,000			12/2003 (*)
RSA-640	193			$20,000			11/2005 (*)
RSA-704	212			$30,000			open
RSA-768	232			$50,000			open
RSA-896	270			$75,000			open
RSA-1024	309			$100,000		open
RSA-1536	463			$150,000		open
RSA-2048	617			$200,000		open


(*) Factoring performed by a team at the German Federal Agency for  
Information Technology Security (BSI)