Question 1

What is QuackSMS and how does it work?

Accepted Answer

QuackSMS (quacksms.com) provides private temporary and dedicated virtual phone numbers connected directly to real cellular telecom networks in over 190 countries. When you select a service (such as WhatsApp, Telegram, or Google) and a country, you receive an exclusive phone number to enter into that service. Once the SMS verification code is dispatched, our automated relay captures the code and displays it on your screen in real time.

Question 2

Is QuackSMS related to Quackr (Quackr.io)?

Accepted Answer

QuackSMS (quacksms.com) is an independent premium alternative to Quackr. While Quackr primarily offers public shared phone numbers where incoming messages can be read by any stranger online, QuackSMS gives you 100% private, exclusive non-VoIP SIM cards that only you can access, alongside a free public demo pool and an automatic money-back guarantee.

Question 3

How is QuackSMS different from public 'free SMS' websites?

Accepted Answer

Public free SMS websites share a single number across thousands of strangers worldwide. Anyone on the internet can read your incoming verification codes, and those numbers are almost always blacklisted or banned on strict platforms. QuackSMS allocates a 100% private, virgin line exclusively to you for the duration of your session, guaranteeing your account cannot be intercepted by anyone else.

Question 4

Do I need to install any apps or SIM card hardware?

Accepted Answer

No apps or physical SIM hardware are required. The entire process occurs in your web browser or via our REST API. You can receive SMS codes seamlessly from any desktop, tablet, or smartphone.

Question 5

Do I need to submit ID documents or undergo KYC?

Accepted Answer

No. We believe in preserving digital privacy and personal sovereignty. You do not need to upload passports, driver's licenses, or undergo KYC procedures to receive verification codes on our platform.

Question 6

What happens if I do not receive an SMS verification code?

Accepted Answer

We offer an unconditional 100% automatic refund guarantee. If the service does not send the code, or if carrier network congestion prevents delivery within your 20-minute timer, the order is cancelled and 100% of your funds are immediately returned to your usable wallet balance with zero fee deductions.

Question 7

Are these VoIP numbers or real physical carrier SIMs?

Accepted Answer

All our lines are routed through physical cellular carrier GSM gateways and authorized telecom infrastructure. Platforms like OpenAI, WhatsApp, Discord, and Google strictly ban traditional VoIP lines (like Google Voice or Skype). Our numbers register as authentic mobile carrier SIMs, achieving a 98.4%+ delivery rate.

Question 8

How does the 'Replace Number' feature work?

Accepted Answer

If the number assigned to you is flagged by the target service or if carrier routing is slow, you can click the 'Replace Number' button directly in your active order modal. Our system will immediately release that number and provision a brand new phone line from the same country and service without charging you again.

Question 9

What is FlashCall + SMS verification?

Accepted Answer

Certain services like Telegram and WhatsApp offer verification via an incoming phone call instead of an SMS. When you choose 'FlashCall + SMS', you receive the verification code as the last 4 to 6 digits of the calling number or via an automated voice prompt. If the voice call cannot connect, the system automatically falls back to standard SMS.

Question 10

Can I receive repeat or multiple SMS on the same number?

Accepted Answer

Yes! During your 20-minute activation window, additional SMS codes sent by the same service to that number are completely free of charge. If you need permanent or multi-day access, we recommend choosing a Rental duration (1d, 3d, 7d, 14d).

Question 11

What is the 'Top 10 Countries' filter in the sidebar?

Accepted Answer

Clicking 'Top 10 Countries' automatically queries our live delivery telemetry and filters the country list to display the top 10 highest-performing nations for your chosen service, showing real delivery speed, lowest cost, and available stock.

Question 12

What is the difference between One-time Activation and Rent?

Accepted Answer

One-time activations (20 minutes) are designed for single account setups (e.g. creating a new WhatsApp or ChatGPT account). Rentals (1 day, 3 days, 7 days, 14 days, or monthly) provide exclusive long-term custody of the phone number, allowing you to receive unlimited SMS codes from your service at any time.

Question 13

Can I extend or prolong my rental before it expires?

Accepted Answer

Yes! You can prolong your rental directly from your dashboard or active order view. Simply click 'Prolong' before the expiration deadline, and the number will remain exclusively yours for another rental period as long as your wallet balance is sufficient.

Question 14

Will another customer get my rented number while it is active?

Accepted Answer

Never. While a rental is active, that phone number is locked strictly to your account. No other user can purchase, receive messages on, or access that line.

Question 15

What are Disposable Email Activations?

Accepted Answer

Our new Email Activations feature provides temporary private mailboxes on reputable domains (@outlook.com, @hotmail.com, @mail.com) for receiving email verification links and OTP codes. It is ideal for signing up to services where you want to keep your personal email address private.

Question 16

How long do disposable email inboxes remain active?

Accepted Answer

Temporary email sessions remain open for 20 minutes, automatically polling and streaming incoming confirmation emails and activation links directly into your web dashboard.

Question 17

Can I choose which email domain to use?

Accepted Answer

Yes! On our Email Activations page (/email-activations), you can select your target service (OpenAI, Discord, Twitter, Google, Steam) and choose from available domain providers with live stock counts.

Question 18

What payment methods are supported for balance top-up?

Accepted Answer

We support Credit/Debit Cards (Visa, Mastercard, American Express), Apple Pay, Google Pay, and major Cryptocurrencies including USDT (TRC-20, ERC-20), Toncoin (TON), Bitcoin (BTC), Ethereum (ETH), and Litecoin (LTC) with low minimum deposit limits.

Question 19

Does my account balance ever expire?

Accepted Answer

No. Your top-up balance remains in your account indefinitely and never expires. You can deposit funds and use them whenever you need numbers.

Question 20

Are there any recurring subscription fees or hidden costs?

Accepted Answer

Zero hidden costs and zero surprise subscriptions. All one-time activations are pay-as-you-go. You only pay for the individual numbers you purchase, with automatic 100% refund protection if no SMS arrives.

Question 21

How does the 'Buy with Settings' mode affect pricing?

Accepted Answer

'Quick Buy' gives you the lowest available market rate with 1 click. 'Buy with Settings' allows advanced users to choose specific carrier operators, select from live wholesale offer tiers, specify a custom maximum budget per line, and set order quantities (1 to 10 lines).

Question 22

Will another user get my number after I use it?

Accepted Answer

Never for the same service. Our automated anti-fraud engine enforces strict service isolation. Once a number has been used to verify Telegram or WhatsApp, telecom registry locks prevent that number from ever being issued to another user for that same platform.

Question 23

Do you offer an automated API for developers?

Accepted Answer

Yes! We provide a high-throughput REST API with native support for both REST v1 and SMS-Activate compat protocols. You can automate buying numbers, polling for codes, webhooks, and balance queries in Python, Node.js, Go, or PHP.

Question 24

Are incoming SMS messages encrypted and private?

Accepted Answer

Yes. All web traffic is encrypted with TLS 1.3. Verification codes are visible only inside your authenticated dashboard session and are never logged or sold to third parties.

Question 25

What is the Anti-Fraud toggle in the Activations dashboard?

Accepted Answer

The Anti-Fraud system filters our global SIM inventory to prioritize virgin, freshly rotated GSM lines that have never encountered temporary carrier flags, providing maximum delivery success on strict services.

Frequently Asked Questions

Frequently Asked Questions