Interesting old advertisements [Telecom]

I recently inspected a copy of the March 1922 issue of "The Century Magazine." I noted two interesting full-page advertisements:

"Tel-U-Where" - "Information bureaus will find any advertised article." Contains a fascinating list of local telephone numbers in about 100 cities circa 1922.

"Foresight" - A generic corporate ad for American Telephone and Telegraph Company. But no telephone number. Neal McLain