New York City telephone exchange chronology after December 1930
(Bronx 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 The Bronx, 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 October 25, 1930
Early 1931 Started: LUdlow 7, OLinville 5 (see Note 1)
Ended: LIverpool 8 (see Note 2)
A, B, Z Summer 1931 April 25, 1931
  (No changes)
A, B, Z Winter 1931-1932 October 24, 1931
Early 1932 Started: JErome 6, TAlmadge 2
Ended: DAvenport 3, TAlmadge 5
B, Z Summer 1932 April 22, 1932
Mid-1932 Started: FOrdham 4
Ended: KEllog 5
B, Z Winter 1932-1933 October 22, 1932
Early 1933 Started: (None)
Ended: ALlegheny 5, BIngham 6
B, Z Summer 1933 April 24, 1933
Mid-1933 Started: (None)
Ended: ADirondack 4
B, Z Winter 1933-1934 October 23, 1933
Early 1934 Started: TRemont 2, 8
Ended: (None)
B, Z Summer 1934 April 23, 1934
Mid-1934 Started: (None)
Ended: TRemont 3
B, Z Winter 1934-1935 October 25, 1934
Early 1935 Started: (None)
Ended: FOrdham 7
B, Z Summer 1935 April 26, 1935
  (No changes)
B, Z Winter 1935-1936 October 28, 1935
  (No changes)
B, Z Summer 1936 April 27, 1936
Mid-1936 Started: FOrdham 5, KIngsbridge 9
Ended: (None)
B, Z Winter 1936-1937 October 27, 1936
Early 1937 Started: (None)
Ended: LUdlow 4
B, Z Summer 1937 April 28, 1937
Mid-1937 Started: FOrdham 7, JErome 8, OLinville 7
Ended: (None)
B Winter 1937-1938 October 21, 1937
Early 1938 Started: TAlmadge 9
Ended: (None)
B Summer 1938 April 21, 1938
Mid-1938 Started: KIngsbridge 3
Ended: FOundation 8
B Winter 1938-1939 October 20, 1938
Early 1939 Started: DAyton 3
Ended: HAlifax 5, INtervale 9
B Summer 1939 April 20, 1939
Mid-1939 Started: (None)
Ended: EStabrook 8
B Winter 1939-1940 October 19, 1939
  (No changes)
B Summer 1940 April 18, 1940
  (No changes)
B November 1940 October 17, 1940
Early 1941 Started: (None)
Ended: KIlpatrick 5
B May 1941 April 17, 1941
  (No changes)
B November 1941 October 16, 1941
  (No changes)
B May 1942 April 16, 1942
  (No changes)
B November 1942 October 13, 1942
Early 1943 Started: OLinville 4
Ended: (None)
B Summer-Fall 1943 April 20, 1943
  (No changes)
B Winter-Spring 1943-1944 October 19, 1943
  (No changes)
B Summer-Fall 1944 April 18, 1944
  (No changes)
B Winter-Spring 1944-1945 October 24, 1944
  (No changes)
B Summer-Fall 1945 April 19, 1945
Mid-1945 Started: LOrraine 2 (see Note 3)
Ended: MArble 7 (see Note 3)
B Winter-Spring 1946 October 22, 1945
Early 1946 Started: LUdlow 3
Ended: (None)
B Summer-Fall 1946 April 11, 1946
Mid-1946 Started: LUdlow 8, 9, TAlmadge 3
Ended: (None)
B Winter-Spring 1947 October 21, 1946
Early 1947 Started: LUdlow 4
Ended: RAymond 9, WEstchester 7
B August 1947 June 29, 1947
Late 1947 Started: CYpress 2
Ended: (None)
B February 1948 December 15, 1947
Early 1948 Started: CYpress 3, 8, 9, DAyton 8, KIngsbridge 7, TAlmadge 8
Ended: OLinville 7
B September 1948 July 2, 1948
Late 1948 Started: TYrone 3
Ended: (None)
B March 1949 January 26, 1949
  (No changes)
B September 1949 July 26, 1949
1949-1950 Started: KIlpatrick 2, MOtt Haven 5
Ended: (None)
B June 1950 April 20, 1950

NOTE 1: The OLinville 5 exchange is listed in the A and Z lists of all five boroughs for Summer 1931. It is not, however, in the B list for that date in The Bronx. An investigation of the listings of subscribers in that directory shows that OLinville 5 numbers actually existed by that time, so the exchange is listed with an Early 1931 start date rather than a start date after the Summer 1931 directory.

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: 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).


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Last modified February 19, 2015.


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