Ireland has one of Europe’s most mature and competitive mobile telecommunications markets, supported by widespread 4G coverage, rapidly expanding 5G adoption and a growing number of connected devices. The country has three mobile network operators, Three Ireland, Vodafone Ireland and eir, alongside a sizeable group of mobile virtual network operators including Tesco Mobile, Lyca Mobile, Virgin Mobile, Sky Mobile and An Post Mobile.
The latest figures from Ireland’s communications regulator, ComReg, show just how quickly the market continues to evolve. At the end of the second quarter of 2026, Ireland had around 11 million mobile subscriptions when mobile broadband and Machine-to-Machine (M2M) connections were included. The number of 5G subscriptions had reached 3.3 million, increasing by 54 percent in a year. Around 79 percent of mobile subscriptions were bill pay, while an average mobile voice subscriber consumed 22.8 GB of data per month, 16 percent more than a year earlier.
Other datasets measure the market differently. GSMA Intelligence estimated that Ireland had 5.54 million cellular mobile connections at the end of 2025, equivalent to 104 percent of the population. It also classified 97.8 percent of those connections as broadband connections operating over 3G, 4G or 5G networks. The significant difference between the GSMA Intelligence and ComReg totals is largely due to definitions, particularly ComReg’s inclusion of millions of M2M subscriptions in its headline mobile market statistics.
This distinction is especially important when looking at operator market share.
According to ComReg, Three accounted for 50.2 percent of all mobile subscriptions including mobile broadband and M2M in Q2 2026. Vodafone had 26.3 percent, eir 14.6 percent, Tesco Mobile 4.5 percent, Lyca Mobile 1.5 percent, Virgin Mobile 1.4 percent, Sky Mobile 0.9 percent and An Post Mobile 0.5 percent.
However, the picture changes significantly when mobile broadband and M2M connections are excluded. In ComReg’s Q1 2026 figures, Vodafone was the largest provider of conventional mobile subscriptions with a 32.0 percent share, followed by Three at 27.6 percent and eir at 24.9 percent. Tesco Mobile had a further 8.1 percent, demonstrating that MVNOs remain an important part of the Irish retail mobile market.
The reason for Three’s very different position in the two sets of statistics is its enormous M2M and Internet of Things business. This makes Ireland an interesting example of why headline mobile market-share figures increasingly need to be treated carefully as connected cars, smart meters, industrial equipment and other IoT devices become a larger part of operator subscription bases.
+Network performance also remains highly competitive. Opensignal’s January 2026 Mobile Network Experience report, based on measurements collected between October and December 2025, showed that no single Irish operator led across every measure.
Three recorded the highest overall Download Speed Experience at 60.9 Mbps, compared with 50.6 Mbps for eir and 43.1 Mbps for Vodafone. Three also recorded the highest 5G Download Speed at 198.9 Mbps. eir, meanwhile, performed particularly strongly in 5G availability, with Opensignal users connected to 5G 85.1 percent of the time when they had an active 5G subscription and device, compared with 72.9 percent for Three and 61.5 percent for Vodafone.
Three Ireland has continued to expand rapidly, reporting 5.6 million customer connections in the first half of 2026, an increase of 6 percent year-on-year. This figure includes Three’s substantial M2M and IoT business and therefore should not be interpreted as 5.6 million individual mobile phone users.
Three’s 5G network now reaches around 97 percent of Ireland’s population, while its 4G network covers 99.4 percent. The operator says it has invested more than €2 billion in Ireland since 2015, including approximately €1.1 billion in network and IT infrastructure. During 2026 it also completed a €1.2 million programme of 4G and 5G upgrades at locations including Croke Park, Aviva Stadium, 3Arena, Dublin Airport and Dundrum Town Centre.
The IoT market remains one of Three’s biggest differentiators. At the end of 2025, the company said it accounted for more than 80 percent of Ireland’s IoT market. Growth in connected devices has been one of the main reasons Three’s overall share of Irish mobile subscriptions has increased so dramatically.
Beyond consumer mobile services, Three continues to expand across enterprise connectivity, IoT and 5G broadband. It has also been experimenting with more advanced 5G capabilities. Three became the first Irish operator to launch a 5G Standalone trial, initially aimed at selected business customers.
eir combines its mobile business with Ireland’s largest fixed telecommunications infrastructure footprint and operates mobile services through both eir Mobile and its lower-cost GoMo brand.
At the end of the second quarter of 2026, eir reported 1.615 million mobile customers, including 1.337 million postpay customers. Its mobile customer base has continued to expand alongside its fibre broadband business. eir also had almost 900,000 fibre broadband customers, while more than 1.5 million premises could access its Fibre-to-the-Home network. Its combined FTTH and Fibre-to-the-Cabinet footprint reached approximately 2.3 million premises.
The company has undertaken a major transformation of its mobile infrastructure. Its network now comprises approximately 2,670 sites and eir reports 99 percent 5G population coverage and 99.9 percent 4G population coverage. It says approximately €250 million has been invested in developing and expanding the mobile network.
The combination of fixed broadband and mobile infrastructure gives eir a particularly strong position in converged services. Residential customers can combine fibre broadband, mobile and television, while business customers can obtain fixed connectivity, mobile services and enterprise communications from the same provider.
Vodafone Ireland remains the largest operator in the conventional mobile subscription market when M2M and mobile broadband connections are excluded. It had approximately 2.09 million mobile customers at the end of June 2026, although Vodafone’s own reporting methodology is different from ComReg’s market-share calculations.
Vodafone continues to invest heavily in its Irish infrastructure. In April 2026 the company announced a further €360 million investment programme, including €200 million for its mobile network and €160 million for digital and IT systems through to 2030. The additional mobile investment builds on the €500 million five-year network programme announced in 2023.
Vodafone reports more than 99 percent population coverage for voice, data and text and more than 99 percent 4G population coverage. Its 5G network is available across Ireland and continues to expand using a mixture of low-band and mid-band spectrum.
The company also maintains a substantial business and enterprise operation, offering mobile and fixed connectivity alongside IoT, cybersecurity, cloud communications and managed services. Vodafone Group’s international footprint also gives the Irish operation an important role in supporting multinational companies requiring connectivity across multiple countries.
Ireland is now moving beyond the initial phase of 5G deployment towards much broader adoption. With 3.3 million 5G subscriptions by June 2026, 5G is becoming a mainstream part of the Irish mobile market rather than a technology limited to early adopters.
At the same time, operators are removing older network technologies and reusing the spectrum for 4G and 5G. Vodafone began progressively switching off its 3G network during 2024, while eir begins its nationwide 3G switch-off from 1 October 2026. Older phones and equipment such as alarms, trackers, medical devices and connected vehicles may still require upgrades or replacement where they rely on 3G connectivity.
Spectrum refarming allows operators to make more efficient use of frequencies previously dedicated to older technologies. Low-band spectrum can help improve geographical and indoor coverage, while mid-band spectrum provides the additional capacity required in busy areas.
Fixed Wireless Access is also becoming an increasingly visible part of operator strategies. Both Three and Vodafone actively market 4G and 5G broadband services, providing an alternative in areas where fixed broadband may be unavailable, slow or inconvenient to install.
The enterprise market is also becoming increasingly important as the consumer mobile business matures. Ireland has a large technology, pharmaceutical, financial services and manufacturing base, creating demand for resilient connectivity, IoT, cybersecurity, cloud networking and managed communications.
The three operators approach this market from slightly different positions. Three has built an unusually large IoT business and has been experimenting with 5G Standalone services. Vodafone brings extensive international enterprise and IoT capabilities through the wider Vodafone Group, while eir can combine national fixed infrastructure, fibre and mobile connectivity.
Private 5G, industrial IoT and other advanced enterprise applications remain relatively early markets, but Ireland’s concentration of multinational companies and digitally intensive industries provides a strong environment for these services to develop.
Ireland’s mobile market is already highly mature, but its underlying composition continues to change. One of the most significant developments is the growth of M2M connectivity. More than four million M2M connections were already recorded by ComReg at the end of 2025, and this category has become large enough to fundamentally change traditional measures of mobile market share.
Three’s rise to more than half of all Irish mobile subscriptions is perhaps the clearest example. At the same time, the conventional mobile market remains considerably more balanced, with Vodafone, Three and eir all maintaining substantial customer bases and Tesco Mobile and other MVNOs providing additional competitive pressure without operating their own radio networks.
5G adoption is accelerating rapidly, mobile data usage continues to rise and 3G spectrum is being released for newer technologies. Competition is therefore increasingly about network experience, value, convergence, IoT and enterprise services rather than simply who can claim the greatest population coverage.
Perhaps the most interesting development in Ireland is that the definition of a mobile customer itself is changing. As millions of connected devices join mobile networks alongside smartphones, tablets and broadband routers, traditional subscriber numbers increasingly tell only part of the story.
