Guides
Virtual numbers and SMS verification, explained
Practical answers to the questions people ask before, during and after verifying an account with a virtual number.
- BasicsWhat is a virtual phone number, and how does SMS verification work?A plain-English guide to virtual phone numbers: what they are, how they receive SMS verification codes, what they cannot do, and when they are the right tool.5 min read
- How-toHow to receive an SMS online without a SIM cardStep-by-step: how to receive a verification text on a virtual number from any country, using nothing but a browser, and what to do if the message does not come.4 min read
- How-toHow to verify WhatsApp without using your personal numberHow to receive WhatsApp's verification code on a virtual number, when this is useful, and what to know about WhatsApp's own rules before you try.5 min read
- How-toHow to create a Telegram account with a virtual numberHow to sign up for Telegram with a virtual number, why it keeps your personal number private, and how to stay in control of the account afterwards.4 min read
- BasicsVirtual number, temporary number or VoIP: what is the difference?The terms are used loosely. Here is what virtual, temporary, VoIP and burner numbers each mean, and which one fits SMS verification.5 min read
- TroubleshootingSMS verification code not received? Nine things to checkWhy a verification text may not arrive, and what to check: number format, timing, service limits, country choice and how refunds work.5 min read
- PrivacyKeeping your personal phone number private when you sign up onlineWhy handing your real number to every website is risky, and practical ways to limit it, including using a separate number for sign-ups.4 min read
- BasicsHow SMS one-time passwords (OTP) work, and why websites use themWhat an OTP is, how a site generates and checks it, why phone numbers are used for verification, and the limits of SMS-based security.5 min read
- How-toVerifying accounts when you travel or live abroadRoaming and new SIMs make verification codes awkward. How a virtual number lets you receive them from anywhere, and what to set up before you leave.4 min read
- How-toSMS verification numbers for app testing and QAHow developers and testers use virtual numbers to check sign-up and login flows that rely on SMS codes, across different countries.4 min read
- How-toWhich country should you pick for a virtual number?How to choose a country for an SMS verification number: price, stock, the service's own rules, and what to do when a number is refused.4 min read
- PrivacyUsing virtual numbers safely and responsiblyWhat a virtual number should and should not be used for, how to protect accounts you create with one, and the rules every user agrees to.4 min read
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