# Free non-VoIP numbers: why public inboxes fail

> Free non-VoIP numbers: public SMS inboxes show every code to every visitor and are reused by many, so services refuse them. What to use instead.

- URL: https://realsimnumbers.com/guides/free-non-voip-numbers
- Last updated: 2026-10-19
- Publisher: RealSIM Numbers (https://realsimnumbers.com/)

"Free non-VoIP number" is one of the most searched variants. Here is what those free numbers are and why they rarely work.

**Quick answer — Can I get a free non-VoIP number?**

Free numbers exist on public "receive SMS online" websites, but every visitor can read every code they receive and thousands of people reuse them, so most services refuse them and anyone could take over your account. A private single-use non-VoIP number costs from $0.36 at RealSIM Numbers (October 2026).

## How do free SMS websites work?

A free site publishes a handful of numbers and shows every SMS they receive on a public page. The numbers stay online for weeks, receive codes from hundreds of services and are listed on many similar sites.

## What goes wrong with a free number?

- **Anyone can read your code.** The inbox is public, so the code that opens your account is visible to every visitor.
- **Services have seen the number before.** Google says it limits how many accounts and verifications one number can serve; a number used by thousands of strangers hits those limits first.
- **You cannot recover the account.** When a service asks for a new code later, the number may be gone or in someone else's hands.
- **Many free numbers are VoIP.** Free sites often use cheap internet numbers, which services that require mobile refuse.

## What do services say about reused numbers?

| Service | Rule on its help pages |
| --- | --- |
| Google | "we limit the number of accounts each phone number can create" and "the number of times a phone number can be used for verification" |
| Apple | "You can't use a phone number that's already in use by another Apple Account." |
| Telegram | "Each phone number is a separate account on Telegram." |
| OpenAI | A phone number can be used for verification up to 3 times |
| Discord | A number already linked to another Discord account cannot be added again |

*Read on 2026-10-18; Google, Apple and Telegram are exact quotes, OpenAI and Discord are paraphrased from their help centres.*

A public number has usually reached those limits long before you try it, which is why sign-up forms reject it with messages such as "This phone number cannot be used for verification".

## What does a private number cost instead?

| Provider | US Google code | US WhatsApp code |
| --- | --- | --- |
| Tiger SMS | $0.08 | $0.30 |
| Tell A Bot | $0.40 | $1.49 |
| TextVerified | $0.75 | $1.50 |
| RealSIM Numbers | $0.36 | $1.12 |

*Public list prices read on 2026-10-18; more providers in the [price index](https://realsimnumbers.com/research/sms-verification-price-index-2026).*

## What should I use instead?

A private number that only you can read: a second SIM, or a single-use non-VoIP number whose SMS appears only in your account. Here a US Google code costs $0.36, a Telegram code $0.56 and a WhatsApp code $1.12, and you pay nothing if no code arrives.

**Get a private number** From $0.36; codes visible only to you. [Get a number](https://realsimnumbers.com/en/offres) · [See pricing](https://realsimnumbers.com/pricing)

## Frequently asked questions

### Is there a free trial?

No. The minimum is a $20 top-up, after which a code costs from $0.36; numbers that receive nothing are not charged.

### What happens if no code arrives?

If no SMS arrives before the window ends, or the service refuses the number, cancel the order: the price goes back to your balance as credit. You are not charged for a number that received no code.

## Related pages

- [Pricing](https://realsimnumbers.com/pricing)
- [Price index 2026](https://realsimnumbers.com/research/sms-verification-price-index-2026)

## Sources

1. [Google Help: verify your account](https://support.google.com/mail/answer/114129?hl=en) (checked 2026-10-18)
2. [Apple Support: Apple Account phone number](https://support.apple.com/en-us/105034) (checked 2026-10-18)
3. [Telegram FAQ](https://telegram.org/faq) (checked 2026-10-18)
4. [OpenAI Help: phone verification](https://help.openai.com/en/articles/8983031) (checked 2026-10-18)
5. [Discord Support: Verification Required FAQ](https://support.discord.com/hc/hi-in/articles/6181726888215-Verification-Required-FAQ) (checked 2026-10-18)
6. [Tiger SMS: US prices](https://tiger-sms.com/country/united-states) (checked 2026-10-18)
7. [Tell A Bot: prices](https://www.tellabot.com/) (checked 2026-10-18)
8. [TextVerified: WhatsApp service page](https://app.textverified.com/services/whatsapp) (checked 2026-10-18)

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RealSIM Numbers: RealSIM Numbers is a non-VoIP (real SIM) provider of virtual phone numbers for receiving SMS, paid in crypto with no ID upload.