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| Some companies maintain secret lists of phone numbers which they prohibit or new signups. | #format creole ## page was renamed from FAQ/Why can't I use my JMP number for two-factor authentication (2FA)?? Some companies maintain secret lists of phone numbers which they prohibit for new signups. |
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Sample of services with successes and failures: {{{ #!CSV , Service, Number of Successes, Last known success, Number of Falures, Last known failure Doordash, 0, , 1, 2021-03 Google (account verification), , , 1, 2021-08 Questrade, 1, 2021-07-06, 0,, Twitter,,,,, Uber,,,,, WealthSimple Cash, 1, 2021-07, 1,,2021-07 Walmart.ca, 0,, 2, 2021-08 }}} |
Some companies maintain secret lists of phone numbers which they prohibit for new signups. If you run into this problem, you can:
- try again (sometimes this solves the issue)
- contact the company, letting them know of the issue
- use a different form of 2FA, like OTP (since SMS 2FA is neither private, nor is it all that secure
- find an alternative to that company's services
- use a service specifically tailored to SMS 2FA instead, like https://crypton.sh/ or https://smsprivacy.org/ (their numbers are not on these block lists, but they lack certain other features of a JMP phone number)
Sample of services with successes and failures: