Yes — a real Singapore mobile number (+65) can receive the ChatGPT (OpenAI) 6-digit code by SMS. Get one in under a minute: a single-use ChatGPT (OpenAI) code from $1.76, or a number you keep from $10.50/month with unlimited incoming SMS and calls. Email sign-up, crypto payment, no ID.
Monthly
$10.50
per month
Yearly
$52.50
per year
Plans: unlimited incoming SMS & calls, 500 SMS + 1,000 minutes out every month. Renew as long as you want.
Digits are masked. The full number is shown once it is assigned to your account.
Step by step
ChatGPT (OpenAI) asks for your number at the phone step during sign-up or when creating API keys on the OpenAI platform. Expect a 6-digit code; it can arrive by SMS.
Get your Singapore number
Sign up at PhoneBorn with an email, top up with crypto and choose Singapore: a monthly plan ($10.50) if you want to keep the account, or a single-use ChatGPT (OpenAI) OTP number ($1.76) for one code.
Open ChatGPT (OpenAI)
Go to the phone step during sign-up or when creating API keys on the OpenAI platform.
Enter the +65 number
Select Singapore (+65) in the country picker and paste the number from your dashboard without a leading 0. Singapore mobiles look like 9xxx xxxx → +65 9xxx xxxx.
Enter the 6-digit code from your inbox
Enter the 6-digit code from your inbox.
Finish the profile
Finish the profile; the number may be used again for API or security checks.
Day-to-day life in Singapore runs on WhatsApp, Telegram and Grab, yet ChatGPT (OpenAI) remains the app for an OpenAI account registered in a supported country. A +65 number keeps that account tied to the country without using your personal SIM.
Relocating professionals: People moving to Singapore for work in finance or tech use a local number early on for apartment hunting and Grab rides.
OpenAI can ask for the phone again for API access, billing or security reviews.
Singapore is Southeast Asia’s business hub, and a local number signals a real presence in the market. WhatsApp and Telegram dominate everyday messaging, while apps like Grab, Shopee and Carousell all expect a +65 mobile for verification.
Local context
Singapore requires every prepaid SIM to be registered with a passport or local ID. A Singapore number from PhoneBorn needs no SIM and no ID — only an email.
| App | OTP price | Guide |
|---|---|---|
| Google / Gmail | $1.47 | Google / Gmail guide |
| $1.57 | WhatsApp guide | |
| Telegram | $1.76 | Telegram guide |
| $1.37 | Instagram guide | |
| $1.27 | Facebook guide | |
| TikTok | $1.27 | TikTok guide |
| Discord | $1.18 | Discord guide |
| X (Twitter) | $1.37 | X (Twitter) guide |
| Binance | $2.16 | Binance guide |
| Amazon | $1.37 | Amazon guide |
Included in every plan
Plan allowances apply to numbers you keep (monthly or yearly). Single-use OTP numbers are a separate product: one code, refunded automatically if no code arrives.
If your number has not sent or received a single SMS or call, you can get a full refund within 7 days of purchase — no questions asked.
Open the number in your dashboard and press “Request refund”. Eligible refunds are returned to your wallet instantly. Refund policy
FAQ
Create an account with just an email, top up with crypto and get a real mobile number — SMS and calls included — in under a minute.