Hi Bert,
So you have 7 digit dialing for local calls? We have had 10 digit dialing for any calls, including local, for well over 2 decades.
As a total aside, I started practice 33 years ago in a very small community in rural South Central Pennsylvania. For about 4 years, local calls only required four digit dialing.
According to a telephone repair man, the local switching equipment was so old, it was exactly the same vintage as that displayed in an exhibit in the Smithsonian for telephone systems from the 1920s.
Gene