# How to use WhatsApp without a SIM card Source: https://tempsmsverify.com/blog/whatsapp-without-sim-card · Last updated: 2026-10-24 WhatsApp does not need a SIM card in the device you use it on. It needs a phone number that can receive one verification code, by SMS or by voice call. That opens several options: a landline, a phone you already own acting as the main device while a tablet or computer is linked, or a temporary number for the sign-up step. Here is how each works in 2026 and what to set up so you do not lose the account. ## Can you use WhatsApp without a SIM card? Yes, but not without a phone number. WhatsApp verifies a number once, by SMS or voice call, and then runs over Wi-Fi with no SIM. You can verify a landline by call, link a SIM-less tablet or computer to an existing account, or use a temporary number, then turn on two-step verification right away. ## Steps 1. **Install WhatsApp on the device without a SIM.** Download WhatsApp or WhatsApp Business on the phone or tablet and connect it to Wi-Fi. No SIM card is needed in that device. 2. **Enter a number you can receive one code on.** Choose the right country, then type a landline, a second line or a temporary number. The number does not have to be in the device. 3. **Pick SMS or voice call.** For a landline, wait for the SMS timer to run out and choose Call me. For a temporary number from TempSMSVerify, choose SMS. 4. **Enter the 6-digit code.** Type the code WhatsApp sends. The app finishes registration and works over Wi-Fi from then on. 5. **Turn on two-step verification.** Go to Settings, Account, Two-step verification and create a 6-digit PIN. Add an email address you control so you can reset the PIN. 6. **Link your other devices.** Open Settings, Linked devices on the main phone to add a computer, a tablet or a second phone, which never need their own SIM. ## Does WhatsApp need a SIM card or a phone number? A phone number. WhatsApp ties every account to one number and checks that you can receive a code on it during registration. After that, the app does not read the SIM card at all: messages and calls go over the internet, so Wi-Fi is enough. That is why a phone with no SIM, a tablet or a computer can all run WhatsApp. In 2026 WhatsApp began rolling out usernames, which let you start chats without showing your number to new contacts. TechCrunch reported on June 29, 2026 that users could reserve usernames, with the feature arriving gradually. Usernames hide your number from other people; they do not replace it. WhatsApp still asks for a phone number to create the account. ## What are your options without a SIM? Four approaches cover almost every situation. They differ in how long the account will stay safe if WhatsApp ever asks you to verify again. | Option | What you need | Re-verification later | Best for | | --- | --- | --- | --- | | Landline or office line | A fixed line that can answer a voice call | Easy: you keep the line | Small businesses, households, WhatsApp Business | | Linked device (companion mode) | An existing WhatsApp account on a main phone | Not needed on the linked device; the main phone holds the number | Tablets, computers, a second phone | | Second SIM or eSIM elsewhere | A line in another phone or a cheap plan | Easy while you keep the line | A separate account you will keep for years | | Temporary number from TempSMSVerify | A balance from $5; number reserved for up to 20 minutes | Hard: the number is not yours after the window | Passing the one-time check without your personal number | ## Can you verify WhatsApp with a landline? Yes. Landlines cannot receive SMS, but WhatsApp offers a voice call option. Enter the landline with its country code, let the SMS countdown finish, and tap Call me. An automated voice reads the 6-digit code. WhatsApp Business is designed to work with landline and business numbers, and many small shops use it exactly this way. The advantage of a landline is permanence: if you change phones or WhatsApp asks you to verify again, you can take another call. If you have an extension behind a phone menu, the automated call may not get through; use a direct line. ## How do linked devices let you use WhatsApp without a SIM? If you already have WhatsApp on one phone, you can add other devices to the same account without any SIM in them. WhatsApp's linked devices feature supports up to four linked devices at once, including a second phone in companion mode, a tablet, WhatsApp Desktop and WhatsApp Web. You scan a QR code from Settings, Linked devices on the main phone, or on some devices link with a code instead. Linked devices keep working when the main phone is offline, but the main phone must be used at least every 14 days, or WhatsApp logs the linked devices out. Some features stay on the main phone only. This is the cleanest option if your goal is WhatsApp on a tablet or a SIM-less spare phone, because no new number is involved. ## Can you use a temporary number for WhatsApp? You can use one for the registration code. On TempSMSVerify, choose WhatsApp in the catalog, pick a country with stock and enter the number in WhatsApp with the matching country code. WhatsApp's SMS contains a 6-digit code; it appears in your dashboard and you are charged only then. If WhatsApp refuses the number or no SMS arrives, cancel after about 2 minutes and the frozen amount returns to your balance. Be clear about the limit: after up to 20 minutes the number is no longer reserved for you. If WhatsApp asks you to verify again, for example when you move to a new phone or reinstall the app, you will not receive the code. Numbers are eventually reassigned, and a later holder could try to register WhatsApp on the same number. Two-step verification is what protects you in that case, because a new registration also needs your PIN. The full flow is on /temp-number/whatsapp. ## How do you keep a WhatsApp account that has no SIM? Whatever number you used, do these on day one: - Turn on two-step verification and set a 6-digit PIN you will remember. Add a recovery email so you can reset it. - Set up chat backup to Google Drive or iCloud, protected with an end-to-end encrypted backup password or key. - Keep using the account; WhatsApp says accounts inactive for a long period can be deleted. - Before switching phones, link the new phone or move chats while the old one still works, rather than re-registering. - If you used a temporary number for a long-term account, consider moving it to a number you own with Settings, Account, Change number while you still have access. ## What does WhatsApp allow? Using WhatsApp on a SIM-less device or with a landline is fully supported. What is not allowed is bulk registration, automated messaging outside the official WhatsApp Business Platform, spam or getting around a ban; WhatsApp bans numbers for that, and it also breaks our /acceptable-use policy. Use one account per person for your own conversations. ## FAQ ### Can I use WhatsApp on a tablet without a SIM card? Yes. The easiest way is to link the tablet to your existing account from Settings, Linked devices on your main phone, which supports up to four linked devices. If you want a separate account on the tablet, register it with any number that can receive one code, such as a landline by voice call or a temporary number. ### Can I use WhatsApp without any phone number at all? No. WhatsApp requires a phone number to create an account in 2026. Usernames, which WhatsApp began rolling out in 2026, let you hide your number from new contacts, but you still need a number to register. The number does not need to be in the device you use. ### Does WhatsApp work on Wi-Fi only? Yes. After verification, WhatsApp sends messages and calls over the internet, so Wi-Fi alone is enough. The SIM card is not read during normal use. You only need the number again if WhatsApp asks you to re-verify, which can happen when you change phones or reinstall the app. ### What happens if I lose the temporary number I used? Your WhatsApp keeps working on the device where it is registered. The risk is re-verification: if WhatsApp asks for a new code, you will not receive it. Keep two-step verification on, keep backups, and if the account matters, move it to a number you own with the Change number feature while you still have access. ### Is two-step verification really necessary? With a SIM-less setup or a temporary number, yes. Two-step verification adds a 6-digit PIN that WhatsApp asks for when the number is registered on a new phone. If someone else later receives a code for that number, they still cannot register your account without the PIN. Add a recovery email so you can reset it. ### Can I verify WhatsApp Business with a landline? Yes. WhatsApp Business supports landline and fixed business numbers. Enter the number with its country code, wait for the SMS option to time out, and choose Call me. An automated call reads the code. Use a direct line, because calls that hit a phone menu or extension may not deliver the code. ### How much does a temporary number for WhatsApp cost? Prices depend on the country and change with supply, so the TempSMSVerify catalog shows the live price before you buy. The price is frozen when you order and charged only if the WhatsApp SMS arrives. Top-ups start at $5 with Card via Stripe (Visa, Mastercard, Amex, Apple Pay, Google Pay); Crypto (USDC or SOL on Solana); card top-ups carry a 10% processing fee. --- TempSMSVerify · https://tempsmsverify.com