Area code 403 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Area code 403" in English language version.

refsWebsite

Global rank English rank

4nationalnanpa.com

2,470^th place

1,321^st place

2web.archive.org

1^st place

1^st place

4,203^rd place

2,471^st place

115^th place

82^nd place

1calgarysun.com

low place

7,122^nd place

low place

low place

abheritage.ca

"Alberta Government Telephones (AGT)".

calgarysun.com

"Alberta set to dial up new 825 area code, CRTC announces". Calgary Sun. 2013-10-30. Archived from the original on 2015-07-31. Retrieved 2015-07-30.

cbc.ca

"Let your fingers do the 10-digit walking". CBC News. 2008-06-23.

crtc.gc.ca

"Telecom Decision CRTC 2019-130". CRTC. 2019-05-03. Retrieved 2019-05-14.
"Telecom Decision CRTC 2021-101". CRTC. 2021-03-05.

nationalnanpa.com

"Status of Numbering Plan Area (NPA) Codes in World Zone 1" (PDF). Bellcore (NANPA). 1993-01-13. Retrieved 2023-05-26.
"Planning Letter PL-364: NPA 587 to Overlay NPAs 403 and 780 (Alberta, Canada)" (PDF). NANPA. 2007-07-27.
"Planning Letter PL-369: NPA 587 to Overlay NPAs 403 and 780 (Alberta, Canada)" (PDF). NANPA. 2007-10-15.
"Planning Letter PL-374: NPA 587 to Overlay NPAs 403 and 780 (Alberta, Canada)" (PDF). NANPA. 2008-02-26.

web.archive.org

Canadian Numbering Administrator Website
"Alberta set to dial up new 825 area code, CRTC announces". Calgary Sun. 2013-10-30. Archived from the original on 2015-07-31. Retrieved 2015-07-30.