> ## Documentation Index
> Fetch the complete documentation index at: https://support.tuckthis.app/llms.txt
> Use this file to discover all available pages before exploring further.

# SMS countries

> Check accepted calling codes and understand SMS delivery limits.

Texting Tuck is included on Pro, Tucker, and Founder. The country calling code determines whether reminders go by text or by email. Carrier restrictions can still affect delivery.

## Text reminders

You can verify these numbers and text thoughts to Tuck. Requested SMS reminders go to your phone.

| Country | Calling code |
| - | - |
| United States, Canada, and other +1 destinations | +1 |
| Mexico | +52 |
| Greenland | +299 |
| Saint Pierre and Miquelon | +508 |
| Belize | +501 |
| Guatemala | +502 |
| El Salvador | +503 |
| Honduras | +504 |
| Nicaragua | +505 |
| Costa Rica | +506 |
| Panama | +507 |
| Haiti | +509 |
| Cuba | +53 |
| Argentina | +54 |
| Colombia | +57 |
| Venezuela | +58 |
| Peru | +51 |
| Bolivia | +591 |
| Ecuador | +593 |
| Guyana | +592 |
| Paraguay | +595 |
| Suriname | +597 |
| Uruguay | +598 |
| Falkland Islands | +500 |
| French Guiana | +594 |
| Guadeloupe | +590 |
| Martinique | +596 |
| Caribbean Netherlands (Bonaire, Sint Eustatius, and Saba) | +599 |
| Greece | +30 |
| France | +33 |
| Spain | +34 |
| Hungary | +36 |
| Italy and Vatican City | +39 |
| Austria | +43 |
| Germany | +49 |
| Portugal | +351 |
| Luxembourg | +352 |
| Malta | +356 |
| Cyprus | +357 |
| Bulgaria | +359 |
| Latvia | +371 |
| Croatia | +385 |
| Slovenia | +386 |
| Slovakia | +421 |
| Réunion and Mayotte | +262 |

## Text in, reminders by email

You can verify these numbers and text thoughts to Tuck. Reminders go to your account email instead of your phone.

Texts to these numbers are limited to verification codes and replies to **STOP**, **START**, and **HELP**.

| Country | Calling code |
| - | - |
| United Kingdom, Guernsey, Jersey, and the Isle of Man | +44 |
| Ireland | +353 |
| Netherlands | +31 |
| Belgium | +32 |
| Denmark | +45 |
| Sweden | +46 |
| Finland and Åland | +358 |
| Estonia | +372 |
| Lithuania | +370 |
| Poland | +48 |
| Czechia | +420 |
| Romania | +40 |
| Brazil | +55 |
| Chile | +56 |

## If a send to a +1 number is rejected

If Telnyx rejects a send to a `+1` number and your account has an email address, Tuck emails the same message to that address. This includes verification codes and reminders.

Look for **Your Tuck verification code** for a code, or **A message from Tuck** for other fallback messages.

This fallback applies when the messaging provider rejects the send. It does not cover every text that fails to arrive after the provider accepts it, and it does not apply to numbers outside `+1`. The countries in the email-reminder table use email for reminders directly.

## Not available

Numbers outside the listed calling codes are not supported. This includes Switzerland, Norway, Iceland, Japan, Australia, and India.

## Add your number

Add and verify your number in **Settings → Ingest**. Include the full country calling code. A ten-digit number without a leading `+` is treated as `+1`; a leading `+` is preserved.

If a supported number cannot receive its code, [contact support](/support/index). Never send support your verification code.

See [Capture by SMS](/capture/sms) for setup, allowances, and opt-out commands.


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