Best SIM Card in Bulgaria: A1, Vivacom, or Yettel?

Planning to stay Connected in Bulgaria in 2026 is straightforward — once you know the rules. The problem most travellers hit is arriving at Sofia Airport, assuming they can grab a SIM quickly and anonymously, and discovering that the process now requires passport scanning, takes longer than expected, and that the eSIM they hoped to activate on their unlocked phone simply isn’t available on any local prepaid plan. This guide cuts through the confusion and tells you exactly what to buy, from whom, and how the process works on the ground.

What Changed in 2026 — New Rules Every Visitor Must Know

Two developments have reshaped the SIM card landscape in Bulgaria since 2024, and both affect tourists directly.

Mandatory SIM registration: By 2026, all three major operators — A1, Vivacom, and Yettel — require identity verification before activating any prepaid SIM card. You cannot buy a SIM anonymously anymore. This aligns Bulgaria with an EU-wide security directive targeting misuse of unregistered prepaid services. At the counter, the store assistant will scan or manually enter your passport details into their system. For EU citizens, a national ID card also works. The registration itself adds around 2–5 minutes to the purchase process, so budget 5–10 minutes total at the store.

No prepaid eSIM from local operators: As of 2026, none of the three major Bulgarian operators offer eSIM activation on prepaid or tourist plans. eSIM exists for their post-paid contracts, but if you’re a visitor buying a short-term plan, you need a physical SIM. There is a workaround using third-party providers — covered in a dedicated section below — but it comes with trade-offs.

5G expansion: Urban 5G coverage has expanded significantly across Sofia, Plovdiv, Varna, and Burgas. For most tourists, though, solid 4G LTE remains the practical standard across the country, including along major highways and BDZ rail corridors.

EU Roam Like At Home: Bulgaria is an EU member state, so if you have a SIM from another EU country, it works in Bulgaria at your home rates (within fair usage limits). Conversely, any Bulgarian prepaid SIM you buy can be used across the EU at no extra charge once you return home — useful if Bulgaria is part of a longer European trip.

A1 Bulgaria — Plans, Prices, and Where to Buy

A1 is widely regarded as the most reliable network for coverage outside major cities. If your itinerary includes the Rhodope Mountains, the Danube Plain, or smaller villages off the main tourist trail, A1’s rural signal tends to hold up better than the competition.

Their entry-level A1 Starter Pack costs 10 BGN (approx. 5.12 EUR) and includes 10 GB of 4G/5G data, 1,000 minutes on-net (within A1), 100 minutes to other national networks, and 100 SMS, valid for 14 days. For visitors staying longer or using more data, the A1 Tourist Plan runs 20 BGN (approx. 10.23 EUR) for 20 GB, unlimited A1 minutes, 200 national minutes, 200 SMS, a small bundle of international minutes to select EU destinations, and a 30-day validity.

You can buy A1 SIMs at official A1 stores in all major cities and shopping centres, through authorised resellers (newsstands, small electronics shops), and at kiosks near Sofia Airport Terminal 2 arrivals. The official store is always the better choice — staff are trained for the registration process and the experience is faster.

Topping up is easy: use the My A1 app (iOS and Android) with a credit or debit card, visit any A1 store, or use an Easypay or Fastpay terminal — the yellow self-service kiosks found in supermarkets, post offices, and petrol stations across the country. You just need your Bulgarian phone number.

One minor frustration: some functions inside the My A1 app default to Bulgarian, though the top-up and balance-check features are generally accessible in English.

Vivacom — The Tourist-First Option

Vivacom is the operator that leans hardest into the tourist market, and their dedicated Vivacom Tourist SIM is the most generous prepaid package available in Bulgaria in 2026. At 20 BGN (approx. 10.23 EUR), it comes with 25–30 GB of 4G/5G data, unlimited national calls, unlimited national SMS, 50–100 international minutes to selected EU and international destinations, and 30-day validity. For a two- or three-week visit, this single purchase often covers everything without a top-up.

Their standard prepaid starter packs are priced between 8–12 BGN (approx. 4.09–6.14 EUR) and include 8–15 GB of data, 500–1,000 on-net minutes, and 50–100 national minutes. These are more modest but can be supplemented with add-on packages purchased through the My Vivacom app or at any store.

Vivacom has a presence at Sofia Airport Terminal 2 arrivals, and in peak season (June–September), you’re likely to find them at Varna and Burgas airports as well. Staff in tourist-area stores frequently speak English — a practical advantage when you’re jet-lagged and just want the SIM working quickly.

Yettel — Best for Data-Heavy Urban Travellers

Yettel (rebranded from Telenor Bulgaria a few years back) is the third major operator and the one with the sharpest focus on data performance in cities. Their Yettel Prepaid Card costs 10–12 BGN (approx. 5.12–6.14 EUR) with an initial bundle of 10–15 GB, 500 on-net minutes, 50 national minutes, and 50 SMS, valid for 14–28 days.

As of 2026, Yettel does not consistently offer a branded tourist package the way Vivacom does. Promotions for new prepaid activations come and go, so it’s worth checking Yettel.bg or asking in-store before committing. If a tourist pack has been introduced by the time you travel, expect pricing around 15–25 BGN (approx. 7.67–12.78 EUR) for 20–30 GB and unlimited national calls over 30 days.

The Yettel App (iOS and Android) is well-designed and the most modern-feeling of the three operator apps, making top-ups and balance checks easy. Easypay and Fastpay terminals work for recharging, as do Yettel stores and the website at Yettel.bg.

The one consistent caveat with Yettel: in remote rural areas and mountainous regions, their signal can be thinner than A1 or Vivacom. For Sofia and the Black Sea coast, it’s a non-issue. For hiking in the Pirin or exploring the Balkan Range on secondary roads, consider A1 or Vivacom instead.

Side-by-Side Comparison — 2026 Budget Reality

Here’s how the three operators stack up for a typical tourist purchase in 2026:

• Budget tier (8–12 BGN / 4.09–6.14 EUR): A1 Starter Pack (10 BGN, 10 GB, 14 days) or Yettel Prepaid Card (10–12 BGN, 10–15 GB, 14–28 days). Good for short stays or travellers who lean on hotel WiFi and only need mobile data occasionally.
• Mid-range tier (20 BGN / approx. 10.23 EUR): Vivacom Tourist SIM (20 BGN, 25–30 GB, 30 days, unlimited national calls) or A1 Tourist Plan (20 BGN, 20 GB, 30 days). This is the sweet spot for most visitors — one purchase, no top-up anxiety.
• Comfortable tier (25+ BGN / 12.78+ EUR): If Yettel releases a tourist pack by 2026, or if you add data bolt-ons to any base plan. Also relevant if you need a large data allocation for remote working while travelling.

Top-ups at Easypay and Fastpay kiosks typically start at 5 BGN (approx. 2.56 EUR) increments. There are no activation fees beyond the SIM card price itself.

eSIM in Bulgaria — What Third-Party Providers Actually Offer

Since local operators don’t offer prepaid eSIM as of 2026, your only eSIM option is a third-party global provider. Airalo and Holafly are the two most established names. Both offer data-only eSIM plans for Bulgaria, typically roaming on one of the local networks (often A1 or Vivacom).

The key limitation: these plans give you data only. No Bulgarian phone number, no SMS for two-factor authentication from Bulgarian banks or services, and no voice calls through the eSIM itself (though WhatsApp and similar apps work fine over data). Pricing varies but expect to pay around 5–15 EUR for 1–5 GB through Airalo, which is less data per euro than a local physical SIM.

The advantage is convenience: you activate it from your phone before you even board the plane, and your device connects automatically on arrival. If you have a dual-SIM phone, you can run an Airalo or Holafly eSIM for data alongside your home SIM for calls, which is a reasonable solution for travellers who want zero hassle and don’t need a local number.

Free WiFi Around Bulgaria — How Far It Gets You

Free WiFi in Bulgaria is genuinely widespread, and for budget travellers, it can significantly reduce how much mobile data you actually need.

Hotels, guesthouses, and Airbnb-style apartments almost universally offer free WiFi, and quality in urban areas is typically fast enough for video calls. Cafes and restaurants in cities and tourist zones reliably provide it — ask for the parola (password) if it isn’t posted.

Public transport is a different story. BDZ trains are unreliable for WiFi — newer rolling stock on routes like Sofia–Plovdiv or Sofia–Burgas may have it, but don’t count on it. Some intercity bus operators (Union Ivkoni, Biomet) advertise onboard WiFi, though actual reliability varies. City buses, trams, and the Sofia Metro do not offer public WiFi.

Some municipalities have deployed free public hotspots in central squares and parks under the WiFi4EU programme — Sofia and Plovdiv are the most consistent. They’re fine for checking maps or messages but not for anything sensitive, and they drop out if you move around.

The practical upshot: free WiFi handles evenings at your accommodation and cafe stops during the day. For navigation, maps, and data on the move — especially on day trips or in smaller towns — a local SIM remains the better investment.

Step-by-Step — Buying Your SIM at Sofia Airport

Sofia Airport Terminal 2 arrivals is where most international visitors land. Here’s how the process actually works on arrival:

1. Clear passport control and collect baggage. SIM kiosks and operator stores are in the arrivals hall past the customs exit.
2. Locate the operator presence. A1, Vivacom, and sometimes Yettel have kiosks or partner stores in Terminal 2 arrivals. If one kiosk is closed or out of stock, the others are usually within 50 metres.
3. Have your passport ready. Staff will need to scan or note your details. This is non-negotiable — no ID, no SIM.
4. Choose your plan. For most visitors, Vivacom’s Tourist SIM at 20 BGN is the easiest call. If you want A1 for rural coverage, go for the Tourist Plan at the same price.
5. Pay and insert. The whole process takes 5–10 minutes. Ask the assistant to confirm your SIM is active before you leave the counter — you should receive a welcome SMS with your number and bundle details.
6. Check your SIM tray size. Most modern phones use a nano-SIM. The operator will cut the SIM to size if needed, but it’s worth confirming.

If you land late at night and the airport kiosks are closed, connect to the airport’s free WiFi and use your hotel’s WiFi until morning. Every official A1, Vivacom, and Yettel store opens by 9:00 AM, and stores in central Sofia shopping malls (like Paradise Center or Mall of Sofia) are open from 10:00 AM.

Common Mistakes to Avoid

• Buying from an unregistered reseller. Street stalls and some kiosks may not be authorised to complete the mandatory registration process. If they can’t scan your ID into the operator’s system, the SIM may not activate properly or could be blocked later.
• Assuming your phone is unlocked. Some phones bought on contract in North America, the UK, or Australia are network-locked. An unlocked phone is required. Test with another SIM before travelling or confirm with your carrier.
• Forgetting to check the SIM size. If you’re using a newer iPhone or Android flagship, you almost certainly need a nano-SIM. Confirm before the assistant seals the package.
• Ignoring the validity window. A 14-day SIM on a 21-day trip leaves you without service for the final week. Match the plan validity to your stay, or be ready to top up.
• Relying on BDZ WiFi for navigation. It doesn’t work reliably. Download offline maps (Maps.me or Google Maps offline) for any train journey, or use your mobile data.
• Not keeping your receipt. If there’s an activation issue or billing dispute, the receipt is your proof of purchase and registration. Keep it for the duration of your trip.

Frequently Asked Questions

Do I need my passport to buy a SIM card in Bulgaria in 2026?

Yes, mandatory ID registration applies to all prepaid SIM purchases in Bulgaria as of 2026. Foreign nationals must present a valid passport. EU citizens can also use a national ID card. The registration takes an extra 2–5 minutes and is completed by the store assistant at the point of sale. There is no way around this requirement.

Which Bulgarian operator has the best tourist SIM package?

Vivacom’s Tourist SIM at 20 BGN (approx. 10.23 EUR) offers the strongest all-round package for short-stay visitors — up to 30 GB of data, unlimited national calls and SMS, and international minutes to EU destinations, valid for 30 days. It is the most purpose-built option available from the three major operators in 2026.

Can I use an eSIM instead of a physical SIM in Bulgaria?

Local operators (A1, Vivacom, Yettel) do not offer prepaid or tourist eSIM plans as of 2026. Third-party providers like Airalo and Holafly offer data-only eSIMs for Bulgaria, which work well if you don’t need a local number. Expect less data per euro compared to a local physical SIM, but activation happens before you travel.

Is free WiFi reliable enough to skip buying a SIM altogether?

For very light users who stay in hotels and cafes most of the day, free WiFi can cover the basics. It is not reliable on public transport, in rural areas, or during day trips. For navigation, real-time maps, and anything requiring consistent mobile connectivity, a local prepaid SIM at 10–20 BGN is a worthwhile investment for most visitors.

Can I use a Bulgarian prepaid SIM in other European countries?

Yes. Bulgaria is an EU member state, so EU Roam Like At Home regulations apply. A Bulgarian prepaid SIM from A1, Vivacom, or Yettel can be used in other EU countries at no extra charge, within the fair usage limits set by each operator. This makes a Bulgarian SIM a practical option if Bulgaria is the first stop on a longer European journey.

📷 Featured image by Carl Tronders on Unsplash.