New York City telephone exchange chronology after December 1930
(Manhattan exchanges)

This is one of a series of tables covering the post-1930 period, and if you have not already read the information on the master page of the set, you are advised to do so.

This table is a chronological listing of the start and end dates of the various exchanges that are included. A description of the methods used to compile this table and an explanation of the format are given here. This particular table is a compilation restricted to the borough of Manhattan, using the B list from the directories. (For an explanation of the terminology, see the main chronology page.) In order to access the table compiled from the A and Z list (which is restricted to the early 1930s), you can click the appropriate links.

For each directory listing, to the left of the directory date information, there is found a notation as to whether the A, B, and Z lists or only the B and Z lists are extant for the directory with that date. (If the B list is the only one available, this will also be shown.) Clicking on the letter A or Z will switch you to the city-wide table prepared from those two lists.

Interval (short form) Cover date "Corrected-to" date
A, B, Z Winter 1930-1931 November 5, 1930
Early 1931 Started: GRamercy 7, LOngacre 3 (see Note 1), MUrray Hill 4, /td>
Ended: FItzroy 8 (B/Z), (see Note 2)
A, B, Z Summer 1931 May 7, 1931
Late 1931 Started: CHelsea 2,
Ended: FItzroy 8 (A), HItchcock 4, LOngacre 3 (B; see Note 1)
A, B, Z Winter 1931-1932 November 6, 1931
Early 1932 Started: (None)
Ended: LOngacre 3 (A/Z; see Note 1),
B, Z Summer 1932 May 6, 1932
  (No changes)
B, Z Winter 1932-1933 November 9, 1932
  (No changes)
B, Z Summer 1933 May 10, 1933
  (No changes)
B, Z Winter 1933-1934 November 6, 1933
  (No changes)
B, Z Summer 1934 May 9, 1934
Late 1934 Started: CIrcle 6, MUrray Hill 6
Ended: BRadhurst 2
B, Z Winter 1934-1935 November 13, 1934
Early 1935 Started: WAdsworth 7, 8
Ended: (None)
B, Z Summer 1935 May 14, 1935
1935-1936 Started: ACademy 4, MUrray Hill 5, REgent 7
Ended: BIllings 5, CLarkson 2
  Probably one missing directory here
B, Z Summer 1936 May 13, 1936
Late 1936 Started: GRamercy 3, LOngacre 3 (see Note 1), MUrray Hill 3, ORchard 7, PLaza 5, 8, TRafalgar 4, WHitehall 3
Ended: (None)
B, Z Winter 1936-1937 November 9, 1936
Early 1937 Started: (None)
Ended: ANdrews 3, TOmpkins Square 6
B, Z Summer 1937 May 13, 1937
Late 1937 Started: MUrray Hill 9
Ended: (None)
B "1938 issue" November 10, 1937
Early 1938 Started: CIrcle 5,
Ended: (None)
B Summer 1938 May 12, 1938
Late 1938 Started: VAnderbilt 6,
Ended: (None)
B "1939 issue" November 9, 1938
Early 1939 Started: (None)
Ended: HArlem 7, TIllinghast 5, VAnderbilt 3
B Summer 1939 May 11, 1939
Late 1939 Started: (None)
Ended: DRydock 4, JOhn 4, ORchard 7
B "1940 issue" November 9, 1939
Early 1940 Started: (None)
Ended: BOgardus 4
B Summer 1940 May 9, 1940
Late 1940 Started: LOrraine 9
Ended: (None)
B December 1940 November 7, 1940
Early 1941 Started: PLaza 9
Ended: (None)
B June 1941 May 2, 1941
1941-1942 Started: WOrth 4
Ended: (None)
  Probably some missing directories here
B December 1942 (see Note 4) November 2, 1942
"1943 issue" (see Note 4)
  (No changes)
B Summer-Fall 1943 May 4, 1943
  (No changes)
B "1944 issue" November 1, 1943
  (No changes)
B Summer-Fall 1944 May 2, 1944
  (No changes)
B Winter-Spring 1945 October 31, 1944
  (No changes)
B Summer-Fall 1945 May 1, 1945
Mid-1945 Started: LOrraine 2 (see Note 5)
Ended: MArble 7 (see Note 5)
B Winter-Spring 1946 October 31, 1945
1945-1946 Started: MUrray Hill 7
Ended: (None)
B Fall-Winter 1946 August 15, 1946
1946-1947 Started: DIgby 8, 9, MUrray Hill 8, TRafalgar 3, WAdsworth 6, WAtkins 4
Ended: ACademy 4, AShland 4, EDgecombe 4 (see Note 6)
B September 1947 July 14, 1947
1947-1948 Started: ACademy 3, ADirondack 4, ALgonquin 5, LOngacre 4, LOrraine 8, LUxemburg 2, MOnument 3, ORegon 3, 4, PLaza 7, TEmpleton 8, TRafalgar 6, 8, 9
Ended: CAledonia 5, CAthedral 8 (see Note 7), MEdallion 3, MOhawk 4, STuyvesant 9, WIckersham 2
B May 1948 March 9, 1948
1948 Started: FOundation 8, MOnument 6, ORegon 5, 9
Ended: ACademy 3
B November 1948 September 13, 1948
1948-1949 Started: JUdson 2, 6, ORegon 7
Ended: (None)
B July 1949 April 25, 1949
Late 1949 Started: (None)
Ended: VOlunteer 5
B January 1950 November 17, 1949

NOTE 1: A listing is given for LOngacre 3 in the Summer 1931 directory, but it is gone from the B list in the Winter 1931-1932 directory and from the A and Z lists by the Summer 1932 directory. The exchange resumes in the Winter 1936-1937 directory. More research is necessary, though this table reflects these listings.

NOTE 2: Hugh Hamilton's list shows GIbraltar 2 as a carry-over from the earlier series, and only GIbraltar 7 as new in Early 1931. However, neither GIbraltar 2 nor 7 is actually shown in the Winter 1930-1931 directory. On the other hand, neither FItzroy 8, FLint 4, LIverpool 8, nor WHitehall 4 is shown in Hugh Hamilton's list, but they are shown in the Winter 1930-1931 directory.

NOTE 3: The UNderhill 7 exchange was shown in the Winter 1931-1932 directory but not in any other directory before or after. It is shown here as started late 1931 and ending early 1932, but more likely it was planned but never started.

NOTE 4: For some reason, two directories were issued, both showing a "corrected-to" date of Nov. 2, 1942. One shows the cover date of December, 1942; the other is labeled "1943 issue."

NOTE 5: Both the MArble 7 and LOrraine 2 exchanges were carried in both the Manhattan and Bronx directories. By comparing the Summer-Fall 1945 Bronx and Manhattan directories, which had MArble 7 but not LOrraine 2, with the Winter-Spring 1946 Bronx and Manhattan directories, which had LOrraine 2 but not MArble 7, it is concluded that the change-over took place after May 1, 1945 ("corrected-to" date of the Summer-Fall 1945 Manhattan directory) but before October 22, 1945 ("corrected-to" date of the Winter-Spring 1946 Bronx directory).

NOTE 6: Although the B list in the directory dated September 1947 still shows ACademy 4, AShland 4, and EDgecombe 4, in fact all subscribers who have telephones with these exchange names in the Fall-Winter 1946 directory are shown with the exchanges changed to UNiversity 4, MUrray Hill 3, and WAdsworth 6, respectively in the September 1947 directory. These exchanges are consequently shown on the "ended 1946-1947" line because this appears to be the correct end date despite the B list entries for September 1947.

NOTE 7: The B list in the directory dated May 1948 indicates the discontinuance of the CAthedral 8 exchange. And in fact, nearly all telephone numbers which had been in this exchange were converted to MOnument 2 telephones in that directory. But the subscriber listings continue to show a very small number of CAthedral 8 numbers (I have spotted two in a selection of a few dozen pages of the May 1948 Manhattan directory.)


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Last modified April 17, 2009.


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