Good for about 1000 years of continuous operation I believe.

The service has been in continuous operation since the 1950s.

The current station has been in continuous operation since 1942.

It has been in continuous operation for over 25 years.

The store has been central to community life and in continuous operation for 163 years.

This form of treatment has been in continuous operation since 1932.

It closed in 1990, after 165 years of continuous operation.

The post office here was in continuous operation from 1887 to 1988.

Built after the 1917 fire, the store was in continuous operation into the late 1960s.

The new company took over on August 21, 1935 for continuous operation.