Any people still with old filters?

In a recent discussion with a company that owns a /16 and has it broken down further, the statement was made that there are ISPs that filter routes at /16 in what was traditional class B space. The example cited was Verio. Verio web pages state they don't do this any more (the filter is /21). Is there anyone that still filters routes longer than /8 and /16 in the traditional Class A and B space?