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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:

Service Number of Successes Last known success Number of Failures Last known failure
Bank of America 1 2021-08
Doordash 0 1 2021-03
Ecobee 1 2021-11 0
Google (account verification) 1 2021-08 1 2021-08
Lyft 0 1 2021-08
Microsoft MFA 50 2021-10-12 10 2021-10-12
Questrade 2 2021-11 0
TD 1 2021-09 0
Twitter
Uber 0 1 2021-08
WealthSimple Cash 1 2021-07 1
Walmart.ca 0 2 2021-08

FAQ/Why isn't my number being accepted by an online service? (last edited 2024-048 20:18:29 by 146)