Codex phone verification bug: unable to send verification code to any phone number
Hi OpenAI team,
I cannot complete Codex login because the phone verification page always fails.
Flow: Codex login → auth.openai.com/add-phone
Country: Indonesia
Error: “Unable to send a verification code to this phone number. Please try again later or use a different number.”
I tried multiple valid Indonesian mobile numbers, mobile data, incognito mode, clearing cookies/cache, no VPN, no Private DNS, and no adblock, but the same error still appears.
ChatGPT login works normally, but Codex is blocked at phone verification.
This looks like a Codex/Auth phone verification bug or SMS routing issue for Indonesia. Please check my account/auth flow.
Screenshot attached.
<img width="1080" height="2400" alt="Image" src="https://github.com/user-attachments/assets/48905e6e-0ae6-4183-ac9c-a11dc9986da1" />
27 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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Same issue
You should change to other "network provider" first, codex/openai seems only support some kind of provider.
Same issue here, and the crazy thing is that inside chatgpt you can use the same number for auth, but when you try using it for codex it either says it has been used on multiple accounts or just doesnt work
plz fix this, i'm paid plus user, why i need this verfi
fucking openai
I already have my phone connected and received the otp via WhatsApp but it still asks me to add a new phone number even after I use the otp code. This is a bug.
Same issue here.
ChatGPT web login works fine, but Codex always requires SMS verification and no SMS is ever received.
Would appreciate a fallback to passkey, authenticator app, or email verification.
same issue here - both phone/whatsapp - same error
same issue
Can anyone solve this? The number that comes up for verification is not the one I used when registering.
And here´s another crazy thing, I have another chatgpt account, free tier, and it works with codex, and the plus one doesnt (the free one doesnt have my phone number on it nor I ever used on this accoun)
For now since OpenAI insists on this thing, I may have found a solution for those like me that are getting the "you phone number has been used the max number of acounts (or something like that)
Under California Law, GDPR and other laws, you have the right to be forgotten and to demand that all your data is deleted, So I´ve made a request on the OpenAI privacy website to delete my number from all openai systems. Lets see what happens.
Same issue here in algeria.
same issue here in pakistan
same issue again, it was fixed but now broke
T
Exactly what happened to me. In the previous incarnation, I even deleted my openAi account, leaving chatGPT the same. The new OpenAI account doesn't even have a place to insert the phone number, but it's still requiring a number I don't have access. Having "Advanced account security enabled" that bypass phone number requirements in chatGPT does nothing to login in codex...
same issue, in Switzerland
Fix it please
Please fix, I can't verify my account
Hey guys i exprience the same issue using Brave Browser, maybe because i switch the DNS to Cloudflare or something but login using Chrome are working
wdym? kindly elaborate more please.
same issue, in Indonesia
me also facing same problem, but when i create new openai account with new email and new phone number. it work, i can choose verify by sms or whatsapp. (i choose whatsapp) . but i still need old account to work with codex
same issue, in Indonesia
Please fix
Same issue as an Indonesian user, also paid account, not the free trial one
Same here in Germany with a paid account
For Indonesian, I assume it's a carrier issue? I checked using both of my numbers, which are all from Telkomsel, and none went through