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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/ [SMS Privacy appears to no longer be operational] (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 (Sign-up) Number of Successes (2FA) Last known success Number of Failures (Sign-up) Number of Failures (2FA) Last known failure
Bank of America 1 2021-08
Canada Post 1 2022-03
Discord 1 2022-04
Doordash 0 1 2021-03
Ebay 1 2021-11 0
Ecobee 1 2021-11 0
Google (account verification) 1 1 2022-05 2 2022-07
Google Voice 3 2022-05
GroupMe 1 2022-06
Instagram
Lyft 0 1 2021-08
Microsoft MFA 50 2021-10-12 10 2021-10-12
Microsoft account.live.com 0 2 2021-12-01
Microsoft 365 for Business 1 0 2022-04
PayPal 1 2 2022-09 1 2022-07-30
Plenty of Fish 1 2022-05
Questrade 3 2022-03 0
Service Ontario Notifications 1 2022-08-12
Simplii Financial 1 2022-03 0
square sites (ie vendor.square.site) 0 1 2021-11
Steam 1 2022-04 1 2022-07-30
Tangerine Bank 1 2022-08 1 2022-04
TD 1 2021-09 0
Telegram (CA Number) 4 10 2021-12
Telegram (US Number) 1 2021-12
Twitter 1 2022-07-30
Uber 0 1 2021-08
Walmart.ca 0 2 2021-08
WealthSimple Cash 1 2021-07 1 2021-07
Wise(TransferWise) 1 2022-07-30
Simlar (Fdroid) 1 2022-02
Zoho 1 1 2022-07-30

FAQ/Why isn't my number being accepted by an online service? (last edited 2025-269 16:23:25 by 185)