===== Google 製 libphonenumber ===== https://github.com/googlei18n/libphonenumber/tree/master/javascript/i18n/phonenumbers ===== 正規表現による電話番号データ( 2019/4/30 現在 , 日本部分のみ抜粋 : 3815行目〜 )======= ブラウザで見ると横に長いデータが折り返されて、複雑さが良く判ります。 https://github.com/googlei18n/libphonenumber/blob/master/javascript/i18n/phonenumbers/metadata.js ,"JP":[ ,[,,"00[1-9]\\d{6,14}|[257-9]\\d{9}|(?:00|[1-9]\\d\\d)\\d{6}",,,,,,,[8,9,10,11,12,13,14,15,16,17]] ,[,,"(?:1(?:1[235-8]|2[3-6]|3[3-9]|4[2-6]|[58][2-8]|6[2-7]|7[2-9]|9[1-9])|(?:2[2-9]|[36][1-9])\\d|4(?:[2-578]\\d|6[02-8]|9[2-59])|5(?:[2-589]\\d|6[1-9]|7[2-8])|7(?:[25-9]\\d|3[4-9]|4[02-9])|8(?:[2679]\\d|3[2-9]|4[5-9]|5[1-9]|8[03-9])|9(?:[2-58]\\d|[679][1-9]))\\d{6}",,,,"312345678",,,[9]] ,[,,"[7-9]0[1-9]\\d{7}",,,,"9012345678",,,[10]] ,[,,"00(?:(?:37|66)\\d{6,13}|(?:777(?:[01]|(?:5|8\\d)\\d)|882[1245]\\d\\d)\\d\\d)|(?:120|800\\d)\\d{6}",,,,"120123456"] ,[,,"990\\d{6}",,,,"990123456",,,[9]] ,[,,,,,,,,,[-1]] ,[,,"60\\d{7}",,,,"601234567",,,[9]] 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