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This is a '''list of telephone exchanges''', the numerals preceding the hyphen in local telephone numbers. These were originally known as "office numbers", referring to the actual telephone exchange offices which served each group of lines. In [[1955]] these office numbers were replaced by names whose first two letters represented the numerals to be dialed. The individual five-digit telephone number followed. Later, one digit was added to the exchange and one removed from the individual number, keeping the total number of digits dialed for local calls at seven.
This is a '''list of telephone exchanges''', the numerals preceding the hyphen in local telephone numbers. These were originally known as "office numbers", referring to the actual telephone exchange offices which served each group of lines. In [[1955]] these office numbers were replaced under the Bell system's "North American Numbering Plan". The scheme initially used names whose first two letters (dialed as numbers 2-9) were followed by a numeral (0-9) to form a three-digit exchange, in the form of "NNX". The individual four-digit telephone number followed. Later, the form was changed to "NXX" to allow the second digit to use a 0 or 1.


==Two-letter exchanges==
==Two-letter exchanges==
* TRemont (87), formerly "2" and "29"
* '''AL'''pine (25), [[Acipco]], [[College Hills]], [[downtown Birmingham]], [[Green Springs]], [[East Lake]], [[North Birmingham]], [[Titusville]]
* VErnon (83), formerly "84"
* '''EL'''gin (35),
* '''GL'''adstone (45), [[Trussville]]
* '''HA'''milton (42), [[Adger]], [[Hueytown]], [[Johns]], [[Bessemer]], routed from the Bessemer central office
* '''HE'''mlock (43), [[Gardendale]]
* '''FA'''irfax (32), formerly "4", [[downtown Birmingham]], [[Norwood]], routed from the main central office
* '''LY'''ric (59), [[Avonwood]], [[Forest Park]], [[Woodlawn]], routed from the Woodlawn central office
* '''MI'''lton (64), [[Sumiton]], [[Dora]], [[Empire]], [[Walker County]]
* '''MO'''ntrose (66), [[Shelby County]]
* '''NO'''rmandy (67), [[Pinson]]
* '''OR'''ange (67), [[Adamsville]]
* '''ST'''ate (78), [[Belview Heights]], [[Bush Hills]], [[Central Park]], [[Edgewater]], [[Ensley]], [[Fairfield]], [[Graymont neighborhood|Graymont]], [[McDonald's Chapel]], [[Midfield]], [[Minor]], [[Pratt City]], [[West End]]. [[Wylam]] - routed from the Ensley central office
* '''TR'''emont (87), TR-1 was formerly "2" and TR-9 was formerly "29", [[Altadena]], [[Edgewood]], [[Homewood]], [[Mountain Brook]], [[Shades Mountain]], routed from the Homewood central office
* '''TU'''cker (67), [[Walker County]]
* '''VA'''lley (82), [[Bluff Park]], [[Indian Springs]], [[Shades Mountain]]
* '''VE'''rnon (83), formerly "84", [[Center Point]], [[East Lake]], [[Huffman]], [[Roebuck]], routed from the Center Point central office
* '''VI'''ctor (84), [[Inglenook]], [[Fultondale]], [[New Georgia]], [[Tarrant]]
* '''WO'''rth (96), [[Crestline]], [[East Lake]], [[Woodlawn]]<!--, routed from the Cahaba Heights central office ??-->


==Three number exchanges==
==Three number exchanges==
* 332 (Homewood)
{| class="sortable" border="0"
* 633 (Pelham)
|-
* 822 (Vestavia Hills)
! Exchange !! Location !! Origin
* 870 (Homewood)
|-
* 871 (Homewood)
| 251 || downtown Birmingham || formerly ALpine 1
* 877 (Homewood)
|-
* 879 (Homewood)
| 252 || downtown Birmingham || formerly ALpine 2
* 940 (Homewood)
|-
* 942 (Homewood)
| 254 || downtown Birmingham, Birmingham City Hall || formerly ALpine 4
* 945 (Homewood)
|-
| 321 || downtown Birmingham || formerly FAirfax 1
|-
| 322 || downtown Birmingham || formerly FAirfax 2
|-
| 323 || downtown Birmingham || formerly FAirfax 3
|-
| 324 || downtown Birmingham || formerly FAirfax 4
|-
| 325 || downtown Birmingham || 1960s-
|-
| 328 || downtown Birmingham || 1970s-
|-
| 332 || Homewood || 1990s-
|-
| 424 || Bessemer || 1960s-
|-
| 425 || Bessemer || originally HAlifax 5
|-
| 426 || Bessemer || originally HAlifax 6
|-
| 428 || Bessemer || originally HAlifax 8
|-
| 590 || Kimberly ||
|-
| 591 || Crestwood, Woodlawn || 1960s-
|-
| 592 || Woodlawn || originally LYric 2
|-
| 595 || Woodlawn || originally WOrth 1, later LYric 5
|-
| 599 || Crestwood, Woodlawn || 1960s-
|-
| 633 || Pelham ||
|-
| 647 || Kimberly ||
|-
| 648 || Walker County ||
|-
| 672 || Walker County ||
|-
| 780 || Western Birmingham, Fairfield || 1970s-
|-
| 781 || Western Birmingham, Fairfield || formerly STate 1
|-
| 783 || Fairfield, US Steel || formerly STate 3
|-
| 785 || Western Birmingham, Fairfield || formerly STate 5
|-
| 786 || Western Birmingham, Fairfield || formerly STate 6
|-
| 787 || Western Birmingham, Fairfield || formerly STate 7
|-
| 788 || Western Birmingham, Fairfield || formerly STate 8
|-
| 791 || Forestdale || 1970s-
|-
| 798 || Forestdale || 1960s-
|-
| 822 || Bluff Park, Hoover, Vestavia Hills || formerly VAlley 2
|-
| 823 || Bluff Park, Hoover, Vestavia Hills || formerly VAlley 4
|-
| 824 || Hoover, Vestavia Hills || 1990s-
|-
| 833 || East Lake, Roebuck ||
|-
| 836 || Roebuck, Wahouma ||
|-
| 838 || Roebuck ||
|-
| 853 || Chalkville ||
|-
| 854 || Center Point ||
|-
| 870 || Homewood || 1960s-
|-
| 871 || Homewood, Vestavia Hills || formerly TRemont 1
|-
| 877 || Homewood || 1970s-
|-
| 879 || Homewood, Vestavia Hills || formerly TRemont 9
|-
| 923 || Green Acres, Midfield, Powderly, West End ||
|-
| 925 || Green Acres, Midfield, Powderly, West End ||
|-
| 940 || Homewood ||
|-
| 942 || Homewood ||
|-
| 945 || Homewood || 1970s-
|-
| 951 || Irondale || 1980s-
|-
| 956 || Irondale || 1970s-
|-
| 957 || Irondale || 1980s-
|-
| 967 || Cahaba Heights, Rocky Ridge ||
|-
| 978 || Hoover, Vestavia Hills || 1980s-
|-
| 979 || Hoover, Vestavia Hills || 1970s-
|-
| 985 || Hoover, Riverchase || 1980s-
|-
| 987 || Hoover, Vestavia Hills || 1970s-
|-
| 988 || Hoover, Vestavia Hills || 1970s-
|-
| 995 || Cahaba Heights, Rocky Ridge || 1980s-
|}


==References==
==References==
* "First long distance dial switchover set March 12" (January 1955) {{BN}} - via [[Birmingham Rewound]]
* "First long distance dial switchover set March 12" (January 1955) {{BN}} - via [[Birmingham Rewound]]
* "[http://en.wikipedia.org/w/index.php?title=Telephone_exchange_names Telephone exchange names]" (December 24, 2014) Wikipedia - accessed January 4, 2015
[[Category:Utilities]]
[[Category:Telephony]]

Latest revision as of 16:31, 15 August 2017

This is a list of telephone exchanges, the numerals preceding the hyphen in local telephone numbers. These were originally known as "office numbers", referring to the actual telephone exchange offices which served each group of lines. In 1955 these office numbers were replaced under the Bell system's "North American Numbering Plan". The scheme initially used names whose first two letters (dialed as numbers 2-9) were followed by a numeral (0-9) to form a three-digit exchange, in the form of "NNX". The individual four-digit telephone number followed. Later, the form was changed to "NXX" to allow the second digit to use a 0 or 1.

Two-letter exchanges

Three number exchanges

Exchange Location Origin
251 downtown Birmingham formerly ALpine 1
252 downtown Birmingham formerly ALpine 2
254 downtown Birmingham, Birmingham City Hall formerly ALpine 4
321 downtown Birmingham formerly FAirfax 1
322 downtown Birmingham formerly FAirfax 2
323 downtown Birmingham formerly FAirfax 3
324 downtown Birmingham formerly FAirfax 4
325 downtown Birmingham 1960s-
328 downtown Birmingham 1970s-
332 Homewood 1990s-
424 Bessemer 1960s-
425 Bessemer originally HAlifax 5
426 Bessemer originally HAlifax 6
428 Bessemer originally HAlifax 8
590 Kimberly
591 Crestwood, Woodlawn 1960s-
592 Woodlawn originally LYric 2
595 Woodlawn originally WOrth 1, later LYric 5
599 Crestwood, Woodlawn 1960s-
633 Pelham
647 Kimberly
648 Walker County
672 Walker County
780 Western Birmingham, Fairfield 1970s-
781 Western Birmingham, Fairfield formerly STate 1
783 Fairfield, US Steel formerly STate 3
785 Western Birmingham, Fairfield formerly STate 5
786 Western Birmingham, Fairfield formerly STate 6
787 Western Birmingham, Fairfield formerly STate 7
788 Western Birmingham, Fairfield formerly STate 8
791 Forestdale 1970s-
798 Forestdale 1960s-
822 Bluff Park, Hoover, Vestavia Hills formerly VAlley 2
823 Bluff Park, Hoover, Vestavia Hills formerly VAlley 4
824 Hoover, Vestavia Hills 1990s-
833 East Lake, Roebuck
836 Roebuck, Wahouma
838 Roebuck
853 Chalkville
854 Center Point
870 Homewood 1960s-
871 Homewood, Vestavia Hills formerly TRemont 1
877 Homewood 1970s-
879 Homewood, Vestavia Hills formerly TRemont 9
923 Green Acres, Midfield, Powderly, West End
925 Green Acres, Midfield, Powderly, West End
940 Homewood
942 Homewood
945 Homewood 1970s-
951 Irondale 1980s-
956 Irondale 1970s-
957 Irondale 1980s-
967 Cahaba Heights, Rocky Ridge
978 Hoover, Vestavia Hills 1980s-
979 Hoover, Vestavia Hills 1970s-
985 Hoover, Riverchase 1980s-
987 Hoover, Vestavia Hills 1970s-
988 Hoover, Vestavia Hills 1970s-
995 Cahaba Heights, Rocky Ridge 1980s-

References

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