Bulgaria
Last updated on 4/30/2026
Optional measures exist
Local Operators
| Operator | MNC | Numeric ID | Alpha ID | Short Code | Comments |
|---|---|---|---|---|---|
| A1 Bulgaria | 1 | No | Yes | No | Sender ID needs to be in the front of the content to be delivered. |
| Telenor | 5 | Yes | Yes | Yes | Sender ID needs to be in the front of the content to be delivered. Unregistered senders changed to short code. |
| Vivacom | 3 | Yes | Yes | Yes | Sender ID needs to be in the front of the content to be delivered. Unregistered senders changed to short code. |
Sender ID Types Availability
Sender ID registration requirements
To register an alpha sender for traffic in Bulgaria, please provide the following information. Registration is optional, and the same process applies for both international and local registrations.
There are registration fees. Pricing varies; please contact Sales for the current sender ID registration rates.
Required Information
To complete the registration, please provide the following documents:
- Sender ID
- Content samples
- Company name
- Company URL
- Company address
- VAT
- Type of traffic (for example, OTP, Marketing, etc.)
- Monthly volume
Additional documents may be required for the registration process.
Need guidance on SMS destination requirements?
SMS rules, documentation, and compliance requirements can vary by country and operator. Our local teams are ready to help you understand what applies to your destinations, including sender ID, routing, registration, and other local requirements. Visit our support section to get in touch.