How to Get a US Phone Number From India to Receive OTP Codes

India's own numbers work with almost every major app, so most people never need anything else. But developers testing US flows, people joining a US team's tools, and anyone hitting a US-only sign-up form sometimes need a +1 number for one OTP. Here's how to do that from India, what it costs you in convenience, and where the line is.

When does someone in India actually need a US number?

Start with your +91 number whenever an app accepts it. Indian numbers are widely supported, and an account tied to your own number is far easier to recover later.

A US number makes sense in specific cases: a beta or service that only offers +1 in its phone field, a US employer's or client's internal tool, or a developer who needs to see how a sign-up flow behaves with a US number. Some AI products and features also launch in the US first, though access usually depends on the provider's supported-country list and your location rather than your phone number alone.

Local options and their limits

A second Jio, Airtel or Vi SIM gives you a number you keep, but it's still +91 and needs KYC to activate, so it won't solve a +1-only form. International roaming on your own SIM doesn't give you a US number either.

US VoIP apps are the common workaround, and they often disappoint. Google Voice generally requires a US number and US setup to start, TextNow numbers are VoIP lines that many apps reject at sign-up, and free SMS websites publish codes where anyone can see them.

Why your Indian card might be declined

Under RBI rules, Indian debit and credit cards usually have international and online usage switched off by default, and you enable them in your bank app or net banking. If a foreign website declines your card, check that setting before anything else. Noir SMS charges cards through Stripe with 3D Secure, so you may also see your bank's OTP step.

Noir SMS also accepts USDC or SOL on the Solana network, credited to your balance automatically. Crypto is legal to hold in India but heavily taxed and regulated, and the rules evolve, so treat it as an option only if it already fits your situation.

Step by step

1. Choose the service and United StatesIn the Noir SMS dashboard, pick the app you're verifying, or Any other, and select United States.
2. Enter it under +1Set the app's country to United States (+1) and type the 10 digits, with no 0 or +91.
3. Get the OTP, then secure the accountThe code appears in your dashboard with a sound alert. Then add your own number or an authenticator app.

Entering a US number when you're used to +91

Indian mobile numbers are 10 digits, often written with a leading 0 or +91. US numbers are also 10 digits, which causes mix-ups: the difference is the country code, +1, and the first three digits being a US area code.

In the app, change the country from India to United States (+1), then paste only the 10 digits. Don't add 0 in front and don't type +91. Many apps auto-select India from your location, and a US number entered under +91 will look valid but fail.

Honest limits of a rented US number

It's for one verification on one service, receives SMS only and is recycled by the provider later. That makes it a poor choice as the long-term recovery number for anything important. Once verified, add your own number, an email and an authenticator app or passkey.

It also doesn't change your identity or location. Freelancing platforms such as Upwork and Fiverr verify identity and location on their own terms, and your Google Play or App Store region is tied to your account settings and payment details. Use it only for your own legitimate accounts, never to misrepresent your country or get past KYC, bank or fintech checks.