Looking for logging into the Fon Details site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Fon Details site. After that you can login as usual with your login credentials.
https://www.softbank.jp/support/faq/view/10566
https://fon.com/login/
http://www.fon.ne.jp/free/
https://fonjapan.zendesk.com/hc/ja/articles/204590415-Fon%E3%82%B9%E3%83%9D%E3%83%83%E3%83%88%E3%81%B8%E3%81%AE%E6%8E%A5%E7%B6%9A%E6%96%B9%E6%B3%95-Fon%E3%83%A1%E3%83%B3%E3%83%90%E3%83%BC-Fon%E3%83%91%E3%83%BC%E3%83%88%E3%83%8A%E3%83%BC%E3%83%A1%E3%83%B3%E3%83%90%E3%83%BC-
https://fonjapan.zendesk.com/hc/ja/articles/208083946-%E4%BB%96%E3%81%AEFon%E3%82%B9%E3%83%9D%E3%83%83%E3%83%88%E3%81%AB%E3%83%AD%E3%82%B0%E3%82%A4%E3%83%B3%E5%87%BA%E6%9D%A5%E3%81%AA%E3%81%84
https://play.google.com/store/apps/details?id=com.oakley.fon&hl=ja
https://www.btwifi.co.uk/help/login-with-bt/
http://www.btwifi.com/help/about-bt-fon.jsp
https://www.telegraph.co.uk/finance/personalfinance/money-saving-tips/8752653/How-to-get-free-wi-fi-access.html
https://www.telstra.com.au/telstra-air/using-overseas
http://bt.custhelp.com/app/answers/detail/a_id/10899/~/can-i-use-bt-wi-fi-abroad%3F
https://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q12119123562
https://www.moneysavingexpert.com/phones/free-wifi/