A1 Slovenija
- Rank in Country: 40
- Operator: A1 Slovenija
- Type: National
- Technology: GSM 900 / GSM 1800 / UMTS 900 / UMTS 2100 / LTE 800 / LTE 1800 / LTE 2600
- Ownership: A1
- MCC:293
- MNC: 40
- Status: Operational
- Description: Former Si.mobil
| Name | A1 |
|---|---|
| Company | A1 Slovenija |
| Country |  Slovenia |
| Country ISO | SI |
| Country code | + 386 |
| Carrier website | https://www.a1.si/ |
| Carrier codes |
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| Mobile prefix | 30, 40, 68, 69 |
| Size of NSN | 9 |
| Number format | +386 30x xxx xxx +386 40x xxx xxx +386 68x xxx xxx +386 69x xxx xxx more... |
| Coverage map | Check A1 Coverage |
| Comment | Former Si.mobil. |
| Subscribers | 736 000 (Q1 2018) |
| GSM bands |
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| GSM protocols |
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| UMTS bands |
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| UMTS protocols |
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| LTE bands |
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| LTE protocols |
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