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SMS verification

Duet SMS verification with a virtual number

Receive your Duet verification code online in seconds. Pick a country, buy a one-time number from $0.18, enter it in Duet and read the SMS here. No SIM card, no subscription, automatic refund if no code arrives.

from $0.184 countries availableLive prices and stock
Get a Duet number

Takes about 30 seconds

  • No subscription
  • Refund if no code arrives

Duet number prices by country

Prices are per received SMS in USD. Availability updates every few minutes.

CountryPriceAvailable
United KingdomUnited Kingdom
$0.1830567Buy
NetherlandsNetherlands
$0.26199069Buy
CanadaCanada
$0.285027Buy
USAUSA
$1.05389874Buy

How to verify Duet with AuthSMS

  1. 1

    Choose a country

    Pick the country whose number you want. Some services check the country, so match it to your target region if needed.

  2. 2

    Get a number

    Buy a one-time number. It is reserved for you for about 20 minutes.

  3. 3

    Receive the code

    Enter the number in Duet, request the SMS and the code appears in your dashboard within seconds.

Duet verification: common questions

Does Duet accept virtual numbers?+

Yes. Our numbers are real mobile numbers from local carriers, so Duet treats them like any other phone. If a specific number is rejected, cancel it and take another one at no cost.

How fast does the Duet code arrive?+

Usually within 5 to 30 seconds after Duet sends it. The number stays active for about 20 minutes.

What if no SMS arrives?+

You get an automatic refund when the number expires without a code. You can also cancel manually after 3 minutes.

Can I use the same number again?+

Often yes: after a code arrives you can buy the same number again for a few hours or days, for example to receive a second Duet code later.

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