Slovakia SMS Features and Restrictions
Country Summary
| Country Name | Slovakia |
| ISO | SK |
| Country Code | 421 |
| Region | Europe |
| MCC (Mobile country code) | 231 |
Sender ID Guidelines
| Alphanumeric Sender ID |
Alpha sender IDs are generally supported. |
| Numeric Sender ID |
T-Mobile (23102) and O2 (23106) don't support numeric sender IDs. All numeric sender IDs will be overwritten to ensure delivery. For other networks, numeric sender IDs are generally not supported unless offered by Vonage's 2-way service. Numeric sender IDs will be overwritten to ensure delivery. |
| Generic Sender ID | Generic sender IDs such as INFO, SMS, NOTICE etc are prohibited. Please use a representative brand or business name to ensure delivery. |
Use-Case & Content Guidelines
| Marketing Traffic | Before sending any marketing traffic, opt-in consent is required from handset users. |
Additional Information
P2P traffic is prohibited.
No political, religious, unsolicited promotion, or gambling content.
There are no additional content restrictions beyond those in our Acceptable Use Policy.
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