A1 Slovenija review
Updated September 30, 2026 · TariffCue Editorial Team · Facts checked September 30, 2026
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Our verdict
A1 Slovenija is a mobile network operator that suits people living in Slovenia who want contract data at a low monthly cost. The A1 Simpl mini prepaid starts at €2.99, with a sim only number and an eSIM available on the same network.
Key facts
- Best for
- Slovenian households wanting a prepaid SIM now and unlimited contract data later on one operator's network.
- Seller type
- Network (Source, checked September 30, 2026)
- SIM-only
- Yes (Source, checked September 30, 2026)
- Price from
- €2.99 (Source, checked September 30, 2026)
- Reference plan prices
- midiMIO: 10.49 EUR/month, unlimited (200 GB full speed), 24-month contract; miniMIO: 7.99 EUR/month, unlimited (20 GB full speed), 24-month contract; A1 Simpl mini: 2.99 EUR/month, 2 GB, 1-month prepaid (Source, checked September 30, 2026)
- Unlimited plan price
- €7.99 (Source, checked September 30, 2026)
- 5G
- Yes (Source, checked September 30, 2026)
- eSIM
- Yes (Source, checked September 30, 2026)
- Wi-Fi calling
- Yes (Source, checked September 30, 2026)
- EU roaming
- Fair use (Source, checked September 30, 2026)
- Roaming countries
- 32 (Source, checked September 30, 2026)
- Multi-line discount
- Yes (Source, checked September 30, 2026)
- Markets
- SI (Source, checked September 30, 2026)
- Legal entity
- A1 Slovenija, d. d. (Source, checked September 30, 2026)
- Headquarters
- Slovenia (Source, checked September 30, 2026)
- Founded
- 1999 (Source, checked September 30, 2026)
- Support channels
- Chat, Phone, Help-centre (Source, checked September 30, 2026)
- Billing
- Contract, Prepaid
- Contract length
- 24
- Official website
- a1.si
Pros and cons
Pros
- The A1 Simpl mini prepaid is the cheapest way in at €2.99, and its small data allowance suits a second line or a backup number.
- Contract users can take unlimited data rather than a capped bundle, with miniMIO at €7.99 a month and midiMIO carrying a far larger full speed allowance.
- Sim only, eSIM, wifi calling and a multi line discount all come from the same operator, so a single account covers several lines and several phone types.
- Roaming reaches 32 countries, which covers most European trips without swapping provider.
Cons
- Contract plans are long: the listed contract length is 24 months, and the prepaid option is the one that rolls month to month.
- The deal is built for a single market, SI, so it is aimed at use at home rather than abroad.
- Entry price ranks 55 of 258 brands, so cheaper opening offers exist elsewhere in the market.
- Roaming is not unrestricted: EU roaming runs on a fair use basis and the roaming footprint is 32 countries.
Who it suits
- People living in Slovenia who want a single bill for a prepaid number and a contract number, with a multi line discount on the extra lines.
- Contract users who want heavy data rather than a small bundle, since unlimited plans start at €7.99 a month.
- Anyone who values eSIM and wifi calling from the company that owns the network, so support and coverage come from the same place.
Who should look elsewhere
- Travellers who want a rolling monthly deal billed without a fixed term: yesss! lists contract, rolling and prepaid as its billing options, while A1 Slovenija bills on contract and prepaid.
- Shoppers who only want the lowest opening figure: Lonestar Cell MTN starts at $0.20, under the A1 Slovenija entry of €2.99.
Where it sits among rivals
Two numbers do the work here: what a plan costs to open at, and what an unlimited plan costs once you are on it. A1 Slovenija lands in different places on each. On the entry price it sits at position 55 of 258 brands, so there are cheaper opening tariffs elsewhere, though the distance to the top of that table is not the whole story. On the unlimited price it ranks 16 of 173, which puts a heavy data plan from this network among the stronger ones. Readers who expect to stay with a single provider should weigh the second number more heavily than the first.
What it does well
The feature list is conventional but complete. Sim only is available, so you can bring your own handset and move an existing number across. An eSIM is offered as well, which suits a recent phone and saves a trip to a shop. Wifi calling is supported, so a call can start on the mobile network and carry over a broadband connection when indoor reception is poor. The newest generation of mobile data is on the network too, which matters for video and tethering. Roaming reaches 32 countries, and a multi line discount applies when several lines sit on the same account.
Who runs it
The operator behind the tariffs is A1 Slovenija, d. d., headquartered in Slovenia. It is the network business itself rather than a reseller selling someone else's coverage, which matters if you want a single party to answer for the signal. The company has been trading since 1999, so it is well established in its home country even if the name is new to you. Support runs on chat, phone and help centre: a phone line, a chat channel and a help centre. For a household comparing tariffs, that means the people who set the price are the people you contact about it.
How A1 Slovenija compares
- 9.3 vs 8.5
- 9.3 vs 8.5
- 9.3 vs 8.5
- 9.3 vs 8.7
- 9.3 vs 8.6
- 9.3 vs 8.5
9.3 vs 8.8
9.3 vs 9.0
9.3 vs 8.5
9.3 vs 9.0
9.3 vs 9.1
9.3 vs 8.8- 9.3 vs 9.4
- 9.3 vs 9.4
9.3 vs 9.3
9.3 vs 9.2
9.3 vs 9.2- 9.3 vs 9.2
Budget Thuis Mobile
9.3 vs 9.1
9.3 vs 9.1
9.3 vs 9.1
9.3 vs 9.1
9.3 vs 9.1
9.3 vs 9.1
9.3 vs 9.0
9.3 vs 9.0
9.3 vs 9.0
9.3 vs 8.8- 9.3 vs 8.8
9.3 vs 8.7
9.3 vs 8.7
9.3 vs 8.7
9.3 vs 8.6- 9.3 vs 8.6
9.3 vs 8.6
9.3 vs 8.6
9.3 vs 8.5
9.3 vs 8.5
9.3 vs 8.5- 9.3 vs 8.5
- 9.3 vs 8.5
- 9.3 vs 8.5
- 9.3 vs 8.0
- 9.3 vs 8.0
- 9.3 vs 8.0
- 9.3 vs 8.0
Where A1 Slovenija is available
- Available
- Slovenia
Countries from the brand (Source, checked September 30, 2026)
Frequently asked questions
What is the cheapest way to start with A1 Slovenija?+
The cheapest way in is the A1 Simpl mini prepaid, listed at €2.99 a month and sold as a prepaid top-up with a small data allowance. That suits a backup line or a short trip far better than a long contract. The brand bills on contract and prepaid terms, so prepaid and contract sit under the same operator.
How much does unlimited data cost?+
Unlimited data is a real option rather than a marketing word: miniMIO and midiMIO both carry unlimited bundles on a contract. The network's unlimited price is €7.99 a month, and that figure places A1 Slovenija at position 16 of 173 in the site ranking. The larger midiMIO bundle keeps full speed on far more data.
How long is the contract?+
The listed contract length is 24 months, and the contract tariffs run on that term. It is the part of the deal that changes the total cost, since a long term spreads the entry price but holds it fixed. The prepaid A1 Simpl mini rolls month to month, which is the flexible route for anyone not ready to commit.
Can I keep my own phone or use an eSIM?+
Sim only is available, so you can bring your own handset and move an existing number across without a new phone. An eSIM is offered too, which suits recent models and avoids waiting for a card. A multi line discount applies when several lines share the account. Billing runs on contract and prepaid terms, so the choice stays open between a prepaid number and a contract number.
What happens when I travel?+
Roaming covers 32 countries, which is enough for most trips across Europe without changing provider. EU roaming runs on a fair use basis rather than unlimited free use, so heavy data abroad is handled under limits. For longer journeys outside that footprint, a local prepaid or an eSIM from a provider in the destination market is the simpler route.
Who actually runs A1 Slovenija?+
The tariffs belong to A1 Slovenija, d. d., headquartered in Slovenia and trading since 1999. That makes it a long established domestic network rather than a reseller borrowing someone else's coverage, so the price you read is the price the operator sets. Any later question about coverage or bill adjustments goes to the same company.
How do I reach support?+
Support runs on chat, phone and help centre, so a phone call or a chat message reaches a person, and the help centre answers routine questions in your own time. Because the seller type is network, the conversation stays with the operator that runs the network, which shortens the loop when a line is faulting.
Sources
- a1.si checked September 30, 2026
Backs: Support channels
“Zacni klepet - Pisi nam - 040 40 40 40”
- a1.si/esim checked September 30, 2026
Backs: ESIM
“eSIM je virtualna SIM kartica in nadomesca klasicno SIM kartico”
- a1.si/iz-tujine checked September 30, 2026
Backs: EU roaming
“V EU/EEA gostovanju veljajo enaki pogoji in cene kot v domacem omrezju”
- a1.si/mio checked September 30, 2026
Backs: 5G, Headquarters, Legal entity, Multi-line discount, Contract length, Reference plan prices, Roaming countries, SIM-only, Unlimited plan price
“A1 Slovenija, Ameriska ulica 4, SI-1000 Ljubljana”
- a1.si/narocniski-mobilni-paketi checked September 30, 2026
Backs: Billing
“Narocniski paketi - Predplacniski paketi”
- a1.si/o-omrezju checked September 30, 2026
Backs: Seller type
- a1.si/predplacniski-paketi/a1-simpl checked September 30, 2026
Backs: Price from
- a1.si/predstavitev checked September 30, 2026
Backs: Founded, Markets
“vodilni zasebni ponudnik celovitih komunikacijskih storitev v Sloveniji”
- a1.si/volte-vowifi checked September 30, 2026
Backs: Wi-Fi calling
Compiled from 9 source pages, checked September 30, 2026. We did not open an account.
A1 Slovenija
Slovenian households wanting a prepaid SIM now and unlimited contract data later on one operator's network.