Summarization

[archstein]

Hi groups...   Can you help me please ? What is summary address  for subnet 128.213.64.0 - 128.213.95.0 ? Is that right if the summary address is 128.213.64.0 255.255.192.0 To determine ther sumary route, the router looks for the most highest-order number of bits that match. If there is no match bits, how to summarize ??? Thanks