---
title: "Slovakia SMS Guideline"
slug: "slovakia-sms-guideline"
updated: 2026-06-12T16:49:05Z
published: 2026-06-12T16:49:05Z
canonical: "academy.insiderone.com/slovakia-sms-guideline"
---

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

# Slovakia SMS Guideline

You can refer to the SMS guidelines for Slovakia, which will assist you during onboarding.

| Locale Name | ISO Code | Region | Dialing Code | Available Routes |
| --- | --- | --- | --- | --- |
| Slovakia | SK | Europe | +421 | Promotional Transactional |

## Promotional Routes

Below, you can see the guidelines for promotional routes:

| Available Sender IDs | Opt-out Options for Sender IDs |
| --- | --- |
| Available Senders: - Dynamic Alphanumeric Sender ID - Domestic Long Code | Unsubscribe with External/Internal Link Reply with Keyword |

## Transactional Routes

SenderID approval processes are the same for transactional routes to use the [SMS transactional API](/v1/docs/send-transactional-sms).