Tigo–Movistar Merger Overview and Immediate Impact
Colombia has cleared a milestone consolidation: Tigo has taken operational control of Movistar, creating a second national-scale incumbent to challenge Claro.
SIC Approval, Ownership Changes, and Operational Control
The Superintendence of Industry and Commerce (SIC) approved the integration through Resolution 94169 of 2025, capping months of scrutiny and pushback from rivals and ISPs. Millicom (Tigo) now leads a combined entity spanning mobile, fixed internet, and pay TV, while Telefónica exits operational control. The Colombian state is divesting its Movistar shares, a sale expected to raise roughly COP 855 billion, completing the privatization of the asset. The new group has consolidated leadership, shifted headquarters to Movistar’s former site, and signaled that customer plans and pricing remain unchanged in the near term.
Why It Matters: Scale for 5G and Fiber
The merger compresses Colombia’s competitive field at a time when 5G rollouts, fiber densification, and cloud-native cores demand scale. It creates a stronger counterweight to Claro, but also raises real concerns about a two-horse race and the downstream effects on MVNOs, ISPs, and enterprise buyers.
Colombia Telecom Market Structure: Towards a Duopoly?
The integrated Tigo–Movistar reshapes market math across mobile and fixed services and resets commercial dynamics.
Mobile Market Share, Momentum, and ARPU Dynamics
Depending on the period and metric, Claro holds a commanding lead in mobile, while the combined Tigo–Movistar now sits as a single rival with share in the mid-30s to low-40s. Challenger WOM remains in the single digits nationally. That profile points to a tighter market with fewer large-scale price makers, especially in postpaid and high-ARPU segments.
Fixed Broadband and Convergent Bundle Strategy
On fixed broadband, the integration creates parity with Claro in total connections, positioning both to push convergent bundles that tie fiber, TV, and mobile. Expect aggressive packaging, greater use of fixed-wireless access where fiber is uneconomic, and targeted upgrades in high-density urban areas where ARPU lift justifies capex.
Competition Risks: Duopoly Dynamics and Consumer Impact
Analysts and rivals warn that two dominant players could erode competitive intensity over time. Without vigilant oversight and wholesale discipline, consumers and smaller providers could face higher prices, slower innovation, or fewer choices—especially outside top-tier cities.
SIC Merger Conditions and Practical Implications
The SIC approved the deal with remedies meant to contain harm while preserving scale benefits.
Wholesale Non-Discrimination Safeguards for OMRs and MVNOs
Key conditions focus on wholesale markets: the integrated operator must offer equitable, transparent, and non-discriminatory terms to mobile network operators and MVNOs. This is designed to keep downstream retail competition alive and ensure access to radio, transport, and potentially value-added capabilities on fair terms.
Limits of the Remedies and Persistent Market Power
The resolution does not, by itself, neutralize scale effects or fully prevent a decline in competitive tension between the two largest players. The Communications Regulation Commission’s finding of market dominance by Claro remains in force, underscoring that structural market power persists and will require ongoing asymmetric remedies and monitoring.
Policy Recalibration: Spectrum Caps and Access Rules
The new structure will likely force updates to spectrum caps, wholesale access rules, user protection, and affordability policies. Expect scrutiny of spectrum assignments, rural coverage obligations, and quality-of-service metrics, as well as tighter enforcement of parity clauses and transparency in wholesale contracts.
Network Integration Priorities: 5G, Fiber, and IT Consolidation
Scale only translates to advantage if network, IT, and product portfolios are integrated with discipline and speed.
5G Roadmap and Spectrum Strategy
The combined operator can rationalize spectrum holdings, refarm mid-band assets, and accelerate 5G deployments. Watch for a clearer roadmap to 5G Standalone, network slicing aligned with 3GPP releases, and private-network offerings for industry verticals. Backhaul upgrades and edge compute placement will be essential to turn coverage into differentiated performance.
Fiber Priorities, FWA, and Convergence
Fiber builds should be re-prioritized toward higher-return clusters, with copper retirement and DOCSIS-to-FTTH transitions where viable. Convergent offers will intensify, leveraging unified billing, shared CPE, and cross-sell motion across consumer and SOHO segments. In underserved zones, fixed-wireless access can complement fiber to extend reach quickly.
Core Network and BSS/OSS Consolidation
Core networks and BSS/OSS stacks will need consolidation to unlock opex and capex synergies. Decisions on RAN modernization paths—traditional, virtualized, or Open RAN—will influence vendor mix, time-to-market, and operating costs. Expect methodical de-duplication of platforms, tighter observability, and modernization of service assurance to protect SLAs during migration.
Enterprise, MVNO, and Wholesale Impacts
Customers should prepare for both opportunity and risk as the new entity retools its portfolio and go-to-market.
Enterprise Connectivity, Mobility, and Security Services
Large accounts should anticipate a refreshed catalog across mobile, SD-WAN/SASE, IoT, and unified communications. Revisit RFPs to test the merged player against Claro and regional providers on SLAs, coverage, traffic engineering, and security features. Maintain dual-sourcing where feasible to mitigate concentration risk.
MVNO, ISP, and OMR Negotiation Playbook
Leverage the SIC’s non-discrimination obligations to negotiate parity pricing, access to 5G SA features, QoS tiers, and clear migration plans. Insist on transparent KPIs, audit rights, and escalation paths. Diversify upstream dependencies by keeping dialogue open with both the integrated operator and Claro, and explore roaming or capacity swaps that stabilize costs.
Vendor Strategy: Integration, Assurance, and Automation
Expect procurement consolidation and tighter vendor rationalization. Position around integration support, service assurance, and automation that accelerates merger synergies. Be ready to demonstrate TCO gains, rapid cutover playbooks, and proven interop across multi-vendor cores and RAN.
Key Milestones, Policy Moves, and Pricing Signals
Execution, policy, and pricing will determine whether this merger delivers scale benefits without eroding competition.
Integration Milestones and Service Continuity KPIs
Track network and IT cutover timelines, customer migration notices, and any service disruptions. Early missteps often surface in billing, provisioning, and roaming; proactive communication will be a tell.
Regulatory Enforcement, Spectrum Policy, and Remedies
Monitor CRC and SIC actions on wholesale compliance, spectrum policies, and any asymmetric remedies. Clear guidance on spectrum caps and rural obligations will shape 5G coverage economics.
Pricing Trends, Churn, and QoS Metrics
Watch retail and wholesale pricing trends, churn levels, and quality-of-service indicators. Sustained parity or improvements in throughput, latency, and complaint rates will signal whether competitive pressure holds.
Capex Signals: 5G Sites, Fiber Passings, and Vendor Choices
Capex guidance, fiber passings, mid-band 5G site growth, and vendor selections will reveal the integrated operator’s strategic bets. Balanced investment between urban densification and rural expansion will be a key indicator of long-term intent.
