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Free eSIM for Bulgaria,
across 33 European countries

Land in Bulgaria already connected. Claim your free 1 GB / 7-day eSIM trial — works across all 33 European countries, top up anytime.

Claim Free eSIM

$0 at checkout · Top up anytime · New users only

Bulgaria flag
FREE
  • Capital
    Sofia
  • Currency
    BGN (лв)
  • Language
    Bulgarian
  • Power
    Type C / F
  • Timezone
    EET · UTC+2
  • Calling code
    +359

Bulgaria host networks for your free eSIM

Your free eSIM connects automatically to these mobile carriers — the same networks locals use, no SIM swap required.

  • A1
    Network 5G
  • Vivacom
    Network 5G

Land in Bulgaria already connected

Walk off the jet bridge with maps, ride-hailing and messaging already working at these arrival points.

  • SOF· Sofia
    Sofia
    • Metro Line 4 (M4) to Serdika, 20 min, 1.60 лв
    • Bus 84 to Sofia centre, 30 min
    • A1 + Vivacom 5G across both terminals; eSIM live before passport control finishes.
  • VAR· Varna
    Varna
    • Bus 409 to Varna centre, 30 min, 3 лв
    • Taxi flat 15 лв to Sea Garden
    • Black Sea coast gateway; signal holds even during peak summer charter flights.
  • BOJ· Burgas
    Burgas
    • Bus 15 to Burgas centre, 25 min, 2 лв
    • Onward shuttle to Sunny Beach / Nessebar, ~45 min
    • Sunny Beach + Sozopol summer hub; A1 5G covers the terminal.

Where your free eSIM works in Bulgaria

Strong 4G/5G across the cities and neighbourhoods most travellers actually visit.

  • Sofia

    Metro M1 + M2 + M4 all fitted with DAS — 4G/5G works in every tunnel including the Serdika–Stadium interchange.

    • Vitosha
    • Oborishte
    • Lozenets
    • Studentski Grad

  • Plovdiv

    Reliable 4G across the old town and at Rila Monastery — A1 has targeted UNESCO sites.

    • Old Town
    • Kapana
    • Centre

  • Varna

    Sea Garden + Golden Sands fully covered; signal only thins near the Kamchia river mouth.

    • Sea Garden
    • Centre
    • Asparuhovo

  • Veliko Tarnovo

    Medieval capital with steep hill streets — Tsarevets fortress has dedicated tower coverage.

    • Old Town
    • Tsarevets
    • Samovodska Charshia

What to install before you land in Bulgaria

The eSIM gets you online — these are the local apps it unlocks the moment you arrive.

  • BDŽ

    Bulgarian State Railways app for tickets and live delays — useful for the Sofia–Plovdiv–Burgas corridor.

  • Sofia Public Transport

    Official metro + tram + bus tickets; the Urban Mobility Centre card covers all three modes.

  • Yango / Bolt

    Yango is widely used in Sofia; Bolt also operates with deeper coverage in Plovdiv + Varna.

  • Maps.me

    Better offline coverage than Google Maps for Rhodope village tracks and Rila trail networks.

Local prepaid SIM vs. our free eSIM in Bulgaria

What you’d pay at the airport SIM kiosk — and what you save by activating the eSIM before you fly.

Local prepaid SIM
A1 Bulgaria prepaid
~15 лв (~€7.50)· 3 GB
ID required — Passport + signed registration form at any A1 / Vivacom shop; monthly packages may also need a Bulgarian address.

Cheap on paper but the registration form is the time sink. Free eSIM skips it.

co:sim free eSIM
co:sim · 1 GB / 7 days
$0· 1 GB / 7 days
Email only — no passport, no codice fiscale, no address proof.
Install before you fly; activates automatically the moment you land.

What's included in your free eSIM

Try our cutting-edge eSIM technology for free across all 33 European destinations.

  • Free 1 GB across 33 European countries

    Enough for maps, messages, ride-hailing and light browsing when you arrive — works from France and Germany to Iceland and Turkey.

  • Top up anytime to extend

    Add more data or extend your validity whenever you need it — top-ups stack onto the same eSIM, no reinstall, no SIM swap.

  • Fast premium 4G/5G networks

    Connects to top local carriers — the same fast, reliable networks our paid plans use.

Claim Free eSIM

How to claim your free eSIM

This offer is for new users only. Hurry, claim it before it's gone!

1

Tap "Claim now"

Hit the button below — no signup required upfront, just enter your email at checkout.

Claim now
2

Receive via email

Your eSIM QR code and install link land in your inbox in seconds.

3

Scan & connect

Scan the QR code from your phone's eSIM settings and you're online across 33 countries.

From Bulgaria, the same eSIM keeps working

Hop into any of these neighbouring countries without swapping SIMs — your free plan covers all of them.

Free eSIM for other European destinations

The same free plan works across all 33 countries — pick another destination for arrival-day specifics.

Free eSIM for Bulgaria FAQs by co:sim

Everything you need to know about the free new-user eSIM offer.

Does the eSIM work on Sunny Beach + Golden Sands?
Yes — A1’s Black Sea coverage is excellent with 4G/5G across boardwalks, hotels and aqua parks. Signal only thins near the Kamchia river mouth.
How is coverage in the Sofia Metro?
Both M1 + M2 + M4 lines have DAS installed, so 4G/5G works in tunnels, platforms and shuttle sections including the Serdika–Stadium stretch.
Does it work in the mountains (Rila, Rhodope, Bansko)?
Mostly yes. Where A1 thins out in Rhodope villages, the eSIM roams to Vivacom. Bansko gondola base has cell-on-wheels coverage Dec–Apr.
Can I cross into Romania or Greece?
Yes — both are in the EU33 pool. The Ruse bridge (RO) and Kulata crossing (GR) hand off automatically with no extra charge.
Who's eligible for the free eSIM?
New users who have not previously claimed a free eSIM. Eligibility is verified at checkout.
Will I be charged anything?
$0 is charged for the free eSIM. A valid card is collected at checkout for verification only — this prevents the same person claiming multiple free eSIMs. You only pay if you choose to top up later.
How long is the free eSIM valid?
Install and activate the eSIM within 30 days after purchase. Once activated, the free plan is valid for 7 days from your first connection. After that, top up anytime to extend the validity — the same eSIM keeps working.
Can I top up or buy more data after?
Yes. Top up the same eSIM with any paid plan at any time — your data and validity extend instantly, no reinstall required. You can also buy plans for any of our 190+ other destinations.
Can I claim the free eSIM again?
No. This free eSIM is a new-user offer, so it can only be claimed once.
How does the free plan compare to paid plans?
Same high-quality network coverage. Paid plans offer more data and longer validity — and you can top up onto your free eSIM at any time.

Ready for Bulgaria?

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