Area codes 415 and 628 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Area codes 415 and 628" in English language version.

refsWebsite

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5web.archive.org

1^st place

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low place

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14^th place

14^th place

415^th place

327^th place

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7,606^th place

1areacode-info.com

low place

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6,123^rd place

4,716^th place

421^st place

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archive.org

Mabbs, Ralph I. (Winter 1947–1948). "Nation-wide Operator Toll Dialing—the Coming Way". Bell Telephone Magazine. 26 (4): 181. Retrieved 2022-12-26.

archive.today

Moore, Carl (1996-02-12). "history.of.area.splits". TELECOM Digest. Archived from the original on 10 July 2012. Retrieved 2007-01-06.

areacode-info.com

Madison, Linc. "NANP Area Code History: 1948 - 1959". Archived from the original on 2002-09-11. Retrieved 2007-01-06.

att.com

"AT&T- News Room". Att.com. 1998-01-28. Retrieved 2012-09-07.

ca.gov

cpuc.ca.gov

"415 Area Code". California Public Utilities Commission. Archived from the original on 2015-02-26. Retrieved 2015-02-25.

lincmad.com

Madison, Linc (1999-05-27). "LincMad's 1947 Area Code Map". Archived from the original on 4 January 2007. Retrieved 2007-01-06.

mit.edu

massis.lcs.mit.edu

Moore, Carl (1996-02-12). "history.of.area.splits". TELECOM Digest. Archived from the original on 10 July 2012. Retrieved 2007-01-06.

nanpa.com

Fabisch, M.P. (1990-06-13). "NANPA Revised Date for Split of 415 (California) Numbering Plan Area" (PDF). Bellcore Letter. Archived from the original (PDF) on 2011-06-04. Retrieved 2007-01-06.
Deak, J.N. (1996-11-22). "NANPA Revised Date for Split of 415 (California) Numbering Plan Area" (PDF). North American Numbering Plan Letter. PL-NANP-022. Archived from the original (PDF) on 2008-12-30. Retrieved 2007-01-06.

sfgate.com

Rubenstein, Steve (2015-02-20). "415, meet 628: New S.F. area code debuts Saturday". SFGate. Retrieved 2020-04-26.

textfiles.com

Cuccia, Mark (1996-08-13). "Re: When Was Direct Distance Dialing Cut In?". TELECOM Digest. Retrieved 2007-01-06.

web.archive.org

Madison, Linc (1999-05-27). "LincMad's 1947 Area Code Map". Archived from the original on 4 January 2007. Retrieved 2007-01-06.
Madison, Linc. "NANP Area Code History: 1948 - 1959". Archived from the original on 2002-09-11. Retrieved 2007-01-06.
Fabisch, M.P. (1990-06-13). "NANPA Revised Date for Split of 415 (California) Numbering Plan Area" (PDF). Bellcore Letter. Archived from the original (PDF) on 2011-06-04. Retrieved 2007-01-06.
Deak, J.N. (1996-11-22). "NANPA Revised Date for Split of 415 (California) Numbering Plan Area" (PDF). North American Numbering Plan Letter. PL-NANP-022. Archived from the original (PDF) on 2008-12-30. Retrieved 2007-01-06.
"415 Area Code". California Public Utilities Commission. Archived from the original on 2015-02-26. Retrieved 2015-02-25.