Nubank Expands NuCel MVNO With Teen-Focused Mobile Plan in Brazil

Nubank, a leading digital banking platform that provides a range of financial services to millions of customers across Latin America, has expanded its mobile service offerings by launching a dedicated NuCel plan tailored for teenagers between 16 and 18 years old.

As a Mobile Virtual Network Operator (MVNO), NuCel leverages existing infrastructure through its revenue-sharing agreement with the mobile network operator Claro, while integrating mobile services directly into the broader Nubank digital ecosystem.

With the new teenage-focused NuCel plan, the fintech MVNO says it aims to foster financial independence among younger generations while maintaining necessary oversight for parents and legal guardians. By combining telecommunications with its financial platform, the company intends to provide a bridge between structured parental control and the increasing autonomy required by adolescents.

The service operates as a control plan to ensure budget predictability. Because it functions with automatic renewal (classified as Postpaid in Brazil), families do not need to worry about unexpected charges or overage fees.

The entire process, from hiring to cancellation, is managed through the Nubank application. To maintain transparency, legal guardians receive real-time notifications regarding the status of the plan, including payment updates and any modifications made to the subscription.

According to Arthur Valadão, the vice president of Nubank, the goal is to help young people develop budgeting skills through supervised spending and financial responsibilities.

To support this objective, NuCel customers are granted access to a specific savings box — branded the Turbo Box — that offers a yield of 120% of the CDI for a limited time.

This feature is designed to spark conversations about investing and long-term financial planning between teenagers and their guardians. This expansion is available to those who already hold a Nubank account opened by a legal guardian.

By combining the capabilities of an MVNO with accessible financial tools, the company is positioning itself as a central platform for the financial lives of younger users, much like KB Kookmin Bank’s MVNO Liiv M in South Korea.

Besides creating an environment where teens can learn to manage their personal finances, it also gives the bank the opportunity to create a credit value history of the younger customers earlier.

Beyond this, the new focus on teens is probably also an attempt to gain more subscribers for the MVNO — and on the confirmed numbers, it appears to be working.

For most of NuCel’s life, Nubank had not disclosed subscriber figures. An Anatel-related regulatory reference in early 2025 indicated roughly 44,000 NuCel accesses shortly after launch.

While Nubank has successfully integrated NuCel into its ecosystem, the service remained a black box in official telecom reports for most of its life. Because NuCel operates as an MVNO on Claro’s infrastructure, its users are not identified as Nubank subscribers in Anatel’s public datasets – they are aggregated directly into Claro’s postpaid and control plan totals.

That changed on June 20, 2026, when Nubank confirmed NuCel had surpassed 1 million customers, 17 months after its January 2025 launch.

How We Got Here: Triangulating the Real Numbers (Original Analysis)

Before the official disclosure, estimating NuCel’s footprint required moving away from aggregate subscriber counts and triangulating three proxy indicators, since Anatel’s data is prone to periodic administrative reclassifications, such as the massive shift in how corporate and IoT/M2M lines are categorized, which creates artificial jumps in the reporting and renders simple aggregate analysis flawed:

Mobile Number Portability (MNP) Gains

Claro has consistently led the market in net number portability. By analyzing the flow of numbers into Claro during the periods surrounding NuCel’s major marketing pushes, we isolated the likely volume attributable to the partnership.

Postpaid/Control Migration

Since NuCel functions as a “Plano Controle” (Postpaid), its growth directly correlates with the shift in Claro’s ARPU (Average Revenue Per User) mix. We analyzed the acceleration in Claro’s control-plan growth to determine how much of that trend was organic versus MVNO-driven.

Wholesale Traffic Models

By cross-referencing Nubank’s customer engagement metrics against sector-wide MVNO wholesale revenue growth, we triangulated a more accurate “active user” figure.

Based on the multi-layered analysis above, we estimated in May 2026 that NuCel had likely reached roughly 200,000–300,000 subscribers, with ~230,000 as a reasonable midpoint — representing approximately 0.23% of Nubank’s customer base at the time.

The confirmed figure, 1,000,000, is roughly 4x that midpoint and above the top of our original range. A few likely explanations:

Acceleration in H1 2026. A meaningful share of the growth may have come in the months immediately preceding the announcement — driven by the 16–18 teen plan launch and continued rollout of physical SIM cards and GB Reservation — periods our proxy data couldn’t fully capture in real time.

MNP undercounting. Some NuCel growth likely comes from net-new mobile lines (first-time postpaid adopters within Nubank’s existing 115M+ customer base) rather than portability switches from rival carriers, which would make an MNP-based proxy systematically conservative.

Self-reported milestones mark an inflection, not a trend line. A round-number announcement like “1 million” tends to land at a moment of acceleration rather than reflect the steady-state growth rate our triangulation was built to detect.

This is a useful reminder that proxy-based estimates for MVNOs embedded inside a larger carrier’s reporting carry real uncertainty, particularly when the underlying product scales unevenly rather than linearly. Visibility remains limited going forward too – NuCel still isn’t broken out in Anatel’s public datasets, so future growth will likely require the same indirect approach unless Nubank continues to disclose milestones directly.

Whether NuCel’s growth curve continues to outpace what indirect market signals would predict is something we will be watching and revisiting, given how far behind the actual number our original estimate landed.

NuCel’s strategic value was never purely about subscriber count, but the confirmed milestone suggests the scale argument is no longer secondary either.

Claro Benefits From Lower-Cost Digital Distribution

Claro gets access to Nubank’s large digital customer base, payment infrastructure, and low-cost app distribution, which help acquire recurring control/postpaid users at lower CAC and lower churn. At 1 million confirmed lines, that distribution advantage has translated into a measurable, rather than purely directional, contribution to Claro’s postpaid base.

Nubank Gains Engagement and Recurring Revenue

For Nubank, NuCel helps increase engagement inside the ecosystem, creates more frequent customer interaction, and adds a recurring subscription product on top of its financial platform — now at a scale large enough to matter for retention metrics, not just as a pilot product.

To better understand the strategic direction of Nubank’s NuCel MVNO, it is useful to compare the Brazilian fintech’s approach with other major bank-led mobile operators globally.

Several financial institutions have already demonstrated that telecom services as MVNOs can significantly strengthen customer engagement, reduce customer acquisition costs, and deepen customer integration.

However, the similarities largely end there. Some banks have used MVNOs to build utility-scale prepaid businesses, while others have used them to challenge national mobile payment infrastructure, while newer entrants increasingly view connectivity as another software layer embedded inside a digital financial platform.

NuCel is Nubank’s digital-first MVNO operating on Claro’s mobile network in Brazil. Publicly available references suggest Nubank utilizes API-native MVNO orchestration designed for app integration and automated customer management.

Rather than positioning NuCel purely as a standalone telecom brand, Nubank is embedding mobile connectivity directly into its broader financial platform. The strategy closely aligns with Nubank’s software-centric culture, where recurring digital services are integrated directly into the banking application to increase customer engagement and long-term retention. With confirmed scale now past 1 million users, that strategy looks less like a slow-burn engagement experiment and more like a real, if still modest relative to Nubank’s overall base, telecom business.

The teen-focused plans further reinforce this approach by tying telecom services directly into family banking, financial education, and long-term customer lifecycle management.

Capitec Connect, launched in partnership with Cell C, represents a very different strategy.

Instead of positioning itself around digital ecosystem expansion, Capitec focused on solving highly visible consumer pain points within South Africa’s prepaid telecom market. Features such as “data that never expires” resonated strongly with consumers frustrated by traditional prepaid billing practices, allowing the bank to rapidly scale its MVNO among existing retail banking customers.

This utility-led positioning helped Capitec Connect become South Africa’s largest MVNO by subscriber volume within only a few years of launch.

Equitel, launched by Equity Bank in Kenya, remains one of the most ambitious examples of telecom-banking convergence globally.

The operator utilized a third-party MVNE platform while differentiating itself through a “Thin SIM” overlay technology, allowing customers to retain their existing SIM cards while layering Equity Bank’s mobile financial services directly onto the device.

Unlike most MVNOs, Equitel was not simply attempting to distribute mobile plans more efficiently. Instead, it effectively positioned itself as an alternative mobile-money infrastructure layer capable of competing directly with Safaricom’s dominant M-Pesa ecosystem.

This deeper integration between banking, payments, and telecom infrastructure enabled Equitel to scale rapidly during its early years.

South Korea’s Liiv M, operated by KB Kookmin Bank, is one of the earliest examples of a large financial institution using an MVNO to deepen digital customer engagement rather than simply reselling connectivity.

The service integrates mobile plans directly into KB Kookmin Bank’s financial products and digital banking environment, targeting younger and digitally active users through bundled financial incentives, preferential banking benefits, and app-centric mobile management.

Unlike infrastructure-heavy models such as Equitel or utility-driven approaches like Capitec Connect, Liiv M focused on embedding telecom services into the customer’s broader digital financial lifestyle.

This positioning makes Liiv M one of the closest international parallels to Nubank’s current NuCel strategy.

Banco BMG’s MVNO Bmg SIM represented one of Brazil’s earliest experiments with a bank-led MVNO model.

Unlike Nubank’s highly integrated software-first strategy, Bmg SIM utilized a white-label MVNO structure and primarily focused on customer retention, bundled financial products, and loyalty-driven engagement.

The service never attempted to become a large-scale telecom challenger. Instead, it functioned more as a complementary extension of Banco BMG’s financial offerings, using mobile services as an additional cross-selling and retention mechanism inside the bank’s broader platform.

Although all five MVNOs leveraged existing banking customer bases to distribute mobile services, their subscriber growth trajectories differed substantially depending on market conditions, product positioning, and operational strategy.

Equitel was extraordinarily successful at ecosystem conversion. Despite operating from a banking base that was significantly smaller than Nubank or Capitec, the MVNO rapidly scaled by embedding telecom functionality directly into Kenya’s broader mobile-money ecosystem. This made Equitel far more than a traditional reseller of connectivity and helped drive unusually strong early adoption.

Capitec Connect also achieved remarkably strong banking-to-telecom penetration. Rather than competing primarily on ecosystem complexity or financial infrastructure, the operator focused on simplicity, affordability, and solving visible prepaid pain points for existing banking customers. The strategy appears to have translated into one of the strongest customer conversion rates among modern bank-led MVNOs.

NuCel, now confirmed at 1 million subscribers, has moved from a relatively early-stage proposition into a meaningfully larger telecom business than the white-label or pure-engagement plays represented by Liiv M and Bmg SIM while still operating at well under 1% of Nubank’s overall footprint. The company appears less focused on maximizing telecom market share and more focused on increasing ecosystem engagement, customer retention, and recurring digital interaction inside the broader Nubank platform but it now does so at a scale too large to dismiss as incidental.

Liiv M and NuCel remain strategically very similar despite operating in completely different markets. In both cases, telecom services function less as standalone telecom businesses and more as another digital layer integrated directly into the banking ecosystem. NuCel’s confirmed conversion rate (~0.87%) now clears Liiv M’s (~0.7%), suggesting the approach can still scale meaningfully even while prioritizing ecosystem stickiness over telecom market share.

Bmg SIM also performed reasonably well relative to Banco BMG’s smaller customer base and more limited strategic ambitions. While the MVNO never attempted aggressive telecom expansion, it demonstrated that even relatively traditional white-label banking MVNOs can still contribute meaningfully to customer retention and cross-selling strategies.

The technical architecture behind each bank-led MVNO closely reflects the broader ambition of the financial institution operating it.

Equitel pursued one of the deepest telecom integrations seen in the banking sector. By combining a third-party Mobile Virtual Network Enabler (MVNE) platform with proprietary Thin SIM technology, Equity Bank effectively transformed the SIM card into part of the banking platform itself. This level of integration allowed Equitel to compete directly in Kenya’s mobile-money market rather than simply acting as a telecom reseller.

Capitec adopted a more utility-focused carrier-grade MVNO architecture. Operating on wholesale infrastructure through external MVNO enablement allowed Capitec to build customized retail telecom features while maintaining the operational scalability required for mass-market prepaid adoption.

NuCel appears architecturally closer to an “MVNO-in-a-box” model or “Embedded Connectivity” built around API enablement infrastructure. Publicly available references suggest Nubank relies on lightweight API native MVNO orchestration that allows mobile services to be integrated into the Nubank app without requiring the company to directly manage telecom infrastructure. This approach prioritizes speed, automation, over deep telecom operational control. The addition of physical SIM distribution, GB Reservation, and account-balance payment shows continued investment in this layer beyond a pure eSIM-only MVP, which may help explain the acceleration to 1 million users.

Liiv M sits somewhere between the Capitec and NuCel approaches. While deeply integrated into KB Kookmin Bank’s digital banking environment, the operator still functions primarily as a telecom-enabled engagement layer rather than as a disruptive infrastructure play.

Bmg SIM, by contrast, utilized a more traditional outsourced white-label MVNO structure. While this reduced operational complexity and accelerated deployment, it also limited the level of differentiation and telecom customization available to the bank.

The comparison illustrates how bank-led MVNOs are evolving into fundamentally different types of MVNO businesses depending on the strategic priorities of the institution behind them.

Equitel pursued infrastructure ownership and mobile-money disruption. Capitec focused on prepaid utility economics and mass-market simplicity. Banco BMG used telecom primarily as a loyalty and financial product extension.

NuCel and Liiv M, meanwhile, were both built around digital platform expansion, treating mobile connectivity as another recurring service layer embedded directly into their broader financial ecosystems. But NuCel’s confirmed 1 million subscribers — achieved in roughly the window where our proxy-based methodology pointed to a number 4x smaller — suggests Nubank’s version of that strategy has scaled faster than the available indirect data could show.

The long-term strategic value still likely comes less from raw telecom market share and more from strengthening customer retention, engagement frequency, and platform stickiness across Nubank’s broader banking ecosystem — but it’s now backed by a subscriber base too large to characterize as purely incidental.