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| * use a service specifically tailored to SMS 2FA instead, like https://crypton.sh/ // (their numbers are not on these block lists, but they lack certain other features of a JMP phone number) | * use a service specifically tailored to SMS verification instead, like https://crypton.sh/ or https://juicysms.com/ // (their numbers might not be on these block lists, but they lack certain other features of a JMP phone number) | 
Context: https://blog.jmp.chat/b/2022-sms-account-verification
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 verification instead, like https://crypton.sh/ or https://juicysms.com/ (their numbers might not be on these block lists, but they lack certain other features of a JMP phone number)
 
Sample of services with successes and failures:
