encryptSIM network operator guide
A1 eSIM destinations
A1 can be available through encryptSIM in 7 supported destinations, with listed service types 5G / 4G / LTE.
5G 4G LTE
Using encryptSIM with A1
Use this page to see where encryptSIM can use A1, then open each destination guide to compare the other supported networks available there.
A1 supported destinations
These are the destinations where A1 can be one of the available mobile networks for encryptSIM data.
A1 mobile coverage map
Explore operator coverage layers for the supported destinations where map data is available. The map is practical coverage context only; it does not guarantee indoor signal, speed, roaming availability, or service at every point.
A1 network identifiers
These public MCC/MNC identifiers can help recognize local network names a device may show during manual network selection. They are technical network identifiers, not a speed or availability guarantee.
| Destination | Local network | PLMN | Listed bands |
|---|---|---|---|
| Belarus | A1 Belarus | 257-01 MCC 257 · MNC 01 |
GSM 900 / GSM 1800 / UMTS 900 / UMTS 2100 |
| Bulgaria | A1 Bulgaria | 284-01 MCC 284 · MNC 01 |
GSM 900 / GSM 1800 / UMTS 900 / UMTS 2100 / LTE 900 / LTE 1800 / LTE 2100 |
| Croatia | A1 Hrvatska | 219-10 MCC 219 · MNC 10 |
GSM 900 / GSM 1800 / UMTS 2100 / LTE 800 / LTE 1800 |
| Slovenia | A1 Slovenija | 293-40 MCC 293 · MNC 40 |
GSM 900 / GSM 1800 / UMTS 900 / UMTS 2100 / LTE 800 / LTE 1800 / LTE 2600 |
Related operators in the same destinations
Practical checks before using A1
- Use the destination cards to see where A1 can be available through encryptSIM.
- Use each destination page to see which other supported operators are available there.
- Keep data roaming enabled for the encryptSIM line.
- Actual service depends on device support, roaming availability, signal, local coverage, and congestion.
Check your eSIM device
Before using encryptSIM on A1 or any listed destination, make sure your phone or tablet supports eSIM.
Network names you may see
A1; A1 BG; A1 HR; A1 Hrvatsaka; A1 Hrvatska; A1 MK; A1 SI; A1 Srbija; A1 mk; Mobitel A1
A1 eSIM FAQ
Does encryptSIM work with A1?
Yes, where A1 is available in the supported destinations listed on this page: Austria, Belarus, Bulgaria, Croatia, North Macedonia, Serbia, Slovenia.
Do I need a local A1 account?
No. encryptSIM is a separate eSIM data product. You do not need to open a direct local A1 account for the data coverage listed here.
Can I force my phone to stay on A1?
Network selection depends on device settings, roaming availability, signal, local coverage, congestion, and local radio conditions.
Does 5G or 4G guarantee performance?
No. 5G, 4G, LTE, and 3G describe listed radio access. Actual performance depends on device support, signal, congestion, and plan conditions.