Area code 971

a new area code. Say hello to the 656.. Tampa Bay Times. [2020-05-08]. （原始内容存档于2020-05-08） （英语）.  Rosenthal, Phil. Chicago's newest area code: 872. 芝加哥論壇報

（原始内容存档于2013-12-31）.  Population and Land Area. FOCUS. [2014-03-08]. （原始内容存档于2013-10-29）.  California Government Code Sections 34502 and 56722. California

弗吉尼亚州区号304和681后第二个全州范围的重叠区号。 PUC orders "number pooling" to delay new area code （页面存档备份，存于互联网档案馆） Accessed334sed 30 January 2008 Saunders, Emilie Ritter

84°47′19″W / 33.37639°N 84.78861°W / 33.37639; -84.78861，而該地的平均海拔高度為296米（即971英尺）。 Newnan. Geographic Names Information System. United States Geological

Shigenari. German influences on Japanese Pre-War Constitution and Civil Code. European Journal of Law and Economics. 1999-01-01, 7 (1): 93–95. ISSN 0929-1261