Numbers for OTP
Virtual number for OTPTemporary phone numberOTP panel & APIPartners
Become a supplierBecome a sellerVirtual numbers for SMS
Virtual number · SMS verification
A real number from Japan for know verification, ready in seconds. Paste it into know, get the OTP online — and a full refund if the code doesn't arrive.
Live stock. Prices include everything — no extra fees.
Top up your wallet, pick know and Japan, press Buy — the number appears at once.
Paste the number on the know sign-up or login screen (country code +81) and request the code.
The SMS code shows up in your dashboard within seconds. No code — the full price goes back to your wallet.
Right now 20 Japan numbers are ready for know on 1 server, from ₹26.00.
Japan numbers start with +81. Each one is rented to you for a single know activation (about 20 minutes), then it is released — so use it for the code, not as your everyday phone number.
FAQ
Still stuck? Our support team usually answers within a few minutes.
₹26.00 right now. The price is shown before you buy, and you pay nothing extra.
Cancel the activation after two minutes, or simply wait for the timer to finish — either way the full amount is refunded to your wallet automatically.
Numbers are rented for a single activation window (about 20 minutes). You can request additional SMS during that window, but the number is not reserved long-term.
No. It's a real mobile number from an operator in Japan that receives real SMS. It's rented to you once, to get the know code — after the activation it is released, so it isn't a number to keep.
+81. In know, pick Japan in the country list and enter the rest of the number, or paste the whole number with +81.
