Switching which phone the Authenticator app is associated with will not invalidate any of your existing application-specific passwords, and does not require any backup codes to complete the transition.
An accurate and up-to-date phone number and/or email address is an important step you can take to ensure you never lose access to your account.
Step 3: Click the pencil next to the Authenticator section.
[TE] = [chunked;q=1.0] [X-Akamai-Edgescape] = [georegion=221,country_code=TR,city=ISTANBUL,lat=41.02,long=28.96,timezone=GMT 2,continent=EU,throughput=vhigh,bw=5000,network=turktelekom,asnum=51559,location_id=0] [Host] = [ca] [Akamai-Origin-Hop] =  [User-Agent] = [Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)] [Connection] = [Keep-Alive] [Pragma] = [no-cache] [Cache-Control] = [no-cache, max-age=0] [X-Web Logic-Keep Alive Secs] =  [True-Client-IP] = [188.8.131.52] [X-Akamai-CONFIG-LOG-DETAIL] = [true] [Proxy-Client-IP] = [184.108.40.206] [Accept-Encoding] = [gzip] [X-Forwarded-For] = [220.127.116.11, .53] [X-Web Logic-Force-JVMID] =  [Via] = [1.1 v1-akamaitech.net(ghost) (Akamai GHost), 1.1 akamai.net(ghost) (Akamai GHost)] [Accept] = [*/*] 1099438348|MCIDTS|17322|MCMID|05970369224847059093638585749076367989|MCAID|NONE|MCOPTOUT-1496606111s|NONE|MCAAMLH-1497203711|7|MCAAMB-1497203792|hmk_Lq6TPIBMW925SPhw3Q|MCSYNCSOP|411-17329|v Version|2.1.0|MCCIDH|-489979287aam_dfp=469534,353242,469870,591742,613368,691761,697669,731064,731443,805496,933262,934330,1296059,1309568,1323850,1325571,1347481,1390873,1425727,1631731,1633113,1633119,1633221,1633225,1633230,1633613,1635805,1704395,1714569,1717687,1717703,1720376,1722055,1729325,1733411,1733965,1734354,1761938,1820718,1820720,1898457,2844330,2884422,2898936,2942619,2950674,2955902,2971090,3030753,3182376,3218657,3246656,3288500,3376719,3441403,3521260,4207588,4207590,5101852https://ca/~1496598915420|https://ca/pages/#/login?
Most web services that offer two-step verification give you the option to receive a text message or use a special app that provides the six-digit code you need to log in to your account.
Google's Authenticator app works with your Google account, as well as most other services. When using the app as your method of authentication code delivery, you may wonder what happens when you want to retire an old phone for a new one.
We fight for progressive causes through our network of more than 5 million activists at CREDO Action.
And we fight for them by donating millions of dollars to progressive nonprofits like Planned Parenthood, Rainforest Action Network, Human Rights Watch and the ACLU. New members on a two-year service contract get 30 days to explore their new service with CREDO Mobile before the early termination fee goes into effect.