A1 Bulgaria Speed Test | Kencang

Test your A1 Bulgaria internet speed in Bulgaria

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A1 Bulgaria is the largest mobile operator and a major fiber broadband provider in Bulgaria, serving approximately 4.5 million mobile and broadband customers. The company offers fiber internet up to 1 Gbps across 68 major cities and 133 smaller towns through a 17,000 km fiber network. A1 Bulgaria is part of the A1 Telekom Austria Group.

About A1 Bulgaria

A1 Bulgaria launched in 2001 as Mobiltel (Mtel), becoming the first mobile operator in Bulgaria. The company was acquired by Telekom Austria (now A1 Telekom Austria Group) and rebranded to A1 in 2019. A1 holds the largest mobile market share in Bulgaria.

Beyond mobile, A1 has built an extensive fiber-to-the-home network covering 68 major cities and 133 smaller populated centers across Bulgaria. The company's 17,000 km fiber network makes it the second largest fixed broadband provider after Vivacom. A1 also offers A1 Xplore TV for IPTV services.

A1 Bulgaria Plans and Services

A1 Bulgaria offers several internet plans across different technologies and price points.

A1 fiber broadband starts at BGN 17.99 per month for 200 Mbps. The 600 Mbps anniversary plan costs BGN 27.99 per month for the first year. Gigabit fiber is available at BGN 39.99 monthly. All fiber plans include a Wi-Fi router and unlimited data.

Mobile plans include unlimited 5G data at BGN 29.99 per month. A1 bundles combine fiber broadband, TV, and mobile at discounted rates. A1 Xplore TV provides IPTV with HD and 4K channels through the broadband connection.

A1 Bulgaria Internet Plans

PlanSpeedPriceFeatures
A1 Net 200 fiber200 MbpsBGN 17.99/month
  • 200 Mbps download and upload
  • Wi-Fi router included
  • Unlimited data
  • Available in 68 major cities
A1 Net 600 fiber600 MbpsBGN 27.99/month (promo)
  • 600 Mbps download
  • Wi-Fi 6 router included
  • 30th anniversary plan
  • BGN 37.99 after first year
A1 Net 1G fiber1000 MbpsBGN 39.99/month
  • 1 Gbps symmetrical speed
  • Wi-Fi 6 router included
  • Priority customer support
  • Best for multi-device households
A1 Unlimited Mobile mobile5GBGN 29.99/month
  • Unlimited 5G data
  • Unlimited calls and SMS
  • 5G access in Sofia and expanding
  • EU roaming data included

Prices and availability may vary by location. Contact A1 Bulgaria for current offers.

A1 Bulgaria Coverage by Region

A1 Bulgaria performance varies by location. Coverage density, local infrastructure, and network congestion affect speeds in each market.

Sofia

Coverage: Full fiber and 5G coverage across the city Typical: 300-1000 Mbps on fiber. 200-400 Mbps on 5G Peak congestion: Moderate during evening hours

Best A1 coverage area with all services available including 5G

Plovdiv

Coverage: Fiber available in most areas. 4G coverage citywide Typical: 200-600 Mbps on fiber. 40-100 Mbps on 4G Peak congestion: Low to moderate

Second largest A1 fiber market after Sofia

Varna and Burgas (Black Sea coast)

Coverage: Fiber in city centers. Good 4G coverage Typical: 200-600 Mbps on fiber. 30-80 Mbps on 4G Peak congestion: Higher during summer tourist season

Seasonal congestion in resort areas along the coast

Smaller cities and towns

Coverage: Fiber available in 133 smaller populated centers. 4G covers most areas Typical: 100-300 Mbps on fiber. 20-60 Mbps on 4G Peak congestion: Low

Fiber availability varies by specific town. Check address on A1 website

Is A1 Bulgaria Right for You?

Every provider has trade-offs. Here is how A1 Bulgaria performs based on real-world usage and customer feedback.

Strengths

  • Largest mobile network in Bulgaria with best 5G coverage
  • 17,000 km fiber network covering 68 cities and 133 towns
  • Affordable fiber starting at BGN 17.99 per month
  • A1 Telekom Austria backing for continued investment
  • Combined mobile, fiber, and TV bundles available
  • Free Wi-Fi router and easy online ordering
  • Anniversary plans with promotional pricing

Weaknesses

  • Fiber not yet available in all Bulgarian towns and villages
  • Gigabit fiber pricing higher than Vivacom in some areas
  • 5G coverage limited primarily to Sofia
  • Contract periods of 12-24 months on most plans
  • Post-promotional pricing increases on anniversary plans

Best For

  • Customers who want mobile and broadband from Bulgaria's largest operator
  • Users in A1 fiber coverage areas looking for reliable fiber broadband
  • Mobile users who want the widest 5G coverage in Bulgaria
  • Households that benefit from bundled mobile, fiber, and TV
  • Urban residents in Sofia, Plovdiv, Varna, and other major cities

Not Ideal For

  • Rural customers outside A1's fiber footprint
  • Budget users who find Vivacom's promotional prices lower
  • Customers who only need cable TV without mobile bundling
  • Users in smaller villages with no A1 fiber coverage

How A1 Bulgaria Compares

Side-by-side comparison of A1 Bulgaria against major competitors in Bulgaria.

CompetitorSpeedPriceCoverageVerdict
VivacomBoth offer gigabit fiber where available. Similar top speeds on fiber. A1 has faster 5G mobile.A1 Net 200 at BGN 17.99. Vivacom promotional fiber around BGN 16-20. Very competitive pricing.Vivacom has wider fixed coverage including DSL. A1 fiber covers 68 cities. A1 leads in mobile coverage.Choose A1 for mobile bundled with fiber. Choose Vivacom for wider fixed broadband coverage especially in rural areas.
Telenor BulgariaA1 fiber delivers up to 1 Gbps. Yettel home internet maxes at 200 Mbps fixed-wireless.A1 fiber from BGN 17.99. Yettel home internet from BGN 8.99 promotional. Yettel cheaper for basic service.A1 has both fiber and mobile. Yettel is mainly mobile with limited fixed-wireless home internet.Choose A1 for fast fiber broadband. Choose Yettel for affordable basic home internet or mobile-only plans.

Troubleshooting A1 Bulgaria Issues

Common A1 Bulgaria connection problems and how to fix them.

A1 fiber speeds are below the subscribed plan speed

Cause: Wi-Fi router limitations, placement issues, or too many connected devices.

  1. Test speed with ethernet cable directly connected to the router
  2. Restart the router by unplugging for 30 seconds
  3. Move the router to a central open location in your home
  4. Disconnect unused devices to free up bandwidth
  5. Contact A1 support to run a remote fiber line diagnostic

A1 fiber or mobile internet connection is completely down

Cause: Fiber line fault, router failure, or network maintenance.

  1. Check router indicator lights for any error signals
  2. Restart the router and wait 3 minutes for reconnection
  3. Check the A1 website or app for reported outages in your area
  4. Test mobile data to see if the issue is fiber-specific
  5. Contact A1 technical support for a fiber line check

A1 Bulgaria History

Key milestones in A1 Bulgaria development and network expansion.

2001

Launched as Mobiltel (Mtel), Bulgaria's first mobile network operator

2005

Acquired by Telekom Austria Group, expanding investment in Bulgarian network

2013

Began deploying fiber-to-the-home network in major Bulgarian cities

2019

Rebranded from Mtel to A1 Bulgaria to align with A1 Telekom Austria Group

2023

Launched 5G mobile services in Sofia

2025

Fiber network reached 17,000 km covering 68 cities and 133 towns. Launched 600 Mbps anniversary plan

Test Your A1 Bulgaria Speed

Run a free speed test to check if A1 Bulgaria delivers the speeds you are paying for. Test during peak evening hours for the most realistic results. Compare your results against A1 Bulgaria advertised speeds above.

A1 Bulgaria Speed Test FAQ

Is A1 Bulgaria the largest mobile operator in the country?

A1 Bulgaria holds the largest mobile market share in the country with approximately 4.5 million customers across mobile and broadband services. The company was the first mobile operator to launch in Bulgaria in 2001 as Mobiltel (Mtel) and has maintained market leadership. A1 Bulgaria is part of the A1 Telekom Austria Group, which provides ongoing investment in network infrastructure and 5G deployment.

How big is A1 Bulgaria's fiber network?

A1 Bulgaria operates a fiber network spanning over 17,000 kilometers, covering 68 major cities and 133 smaller populated centers across the country. This makes A1 the second largest fiber provider in Bulgaria after Vivacom. The network uses fiber-to-the-home and fiber-to-the-building technology to deliver speeds up to 1 Gbps. Coverage is concentrated in urban and suburban areas, with ongoing expansion to smaller towns.

Does A1 Bulgaria offer 5G mobile service?

A1 Bulgaria launched 5G mobile service in Sofia in 2023 and is expanding coverage to other major cities. 5G speeds typically range from 200 to 400 Mbps in covered areas. The unlimited mobile plan at BGN 29.99 per month includes 5G access at no extra charge. A 5G compatible device is required. In areas without 5G coverage, devices automatically connect to A1's 4G LTE network, which covers virtually all populated areas in Bulgaria.

Last verified: February 12, 2026

Data source: A1 Bulgaria official website, A1 Telekom Austria Group reports, Bulgarian CRC regulatory data