The history of the telephone exchange names in New York City can be divided into three periods:
It should be noted that on this site we do not refer to the pre-dial period as the "manual" period, because (as noted above) manual exchanges continued to exist for many years into the dial period. What distinguishes the pre-dial period from the early (and late) dial period was not the presence of manual exchanges, but the absence of dial exchanges.
The varied changes in directory formats during these three periods are separately discussed in the pages covering each individual period (which can be reached by clicking the appropriate links either in the preceding paragraph or in the table listing the chronological periods below).
This site includes information about other telephone numbers northward and eastward of New York City, because some of those numbers became dialable from the city after about 1950, while others were, in turn, connected with those suburban numbers by being assigned the same area codes when area codes were instituted, and as a result they affected the availability of exchange names. (See this page for more information.)
|Chronological periods of the New York City data:|
|Pre-dial period||Early dial period||Late dial period|
|The New York greater metropolitan area|
|The Northern 914 Area||Southern Westchester County||Western Long Island||Eastern Long Island|
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Last modified January 15, 2011.