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- Government
- Information and Communication Technology
- Interconnection
- Internet Protocol
- Latency
- Managed Services
- Multiprotocol Label Switching
- Network Operator
- on-premises
- Packet
- Power
- Programmable Logic Controller
- Public Sector
- Quality of Service
- Service Level Agreements
- Service Mesh
- Services
- Standards
- Submarine Cable
- Virtual Private Network
- Wholesale
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Who is Sri Lanka Telecom PLC?
Sri Lanka Telecom Programmable Logic Controller (PLC) is a Sri Lankan telecommunications and Information and Communication Technology (ICT) services provider offering fixed, mobile, and digital infrastructure for consumer, enterprise, and public-sector environments.
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- Fixed-line and broadband connectivity services for residential, business, and public-sector customers
- Enterprise data, Virtual Private Network (VPN), and managed network services (networking)
- Mobile voice, data, and value-added services via its mobile operations (mobile communications)
- Cloud hosting, data center, and ICT solutions for enterprises and institutions (cloud infrastructure, managed services)
- Wholesale and international connectivity services leveraging submarine cable and backbone infrastructure (carrier services)
More About Sri Lanka Telecom PLC
Sri Lanka Telecom PLC operates as an integrated telecommunications and ICT provider, delivering network and digital services that support enterprise workloads, critical communications, and public infrastructure in Sri Lanka. The company provides fixed-line telephony and broadband access over fiber and copper, which serve as last-mile connectivity options for residential users, small and medium businesses, and large enterprises that depend on stable wired links for voice, data, and collaboration platforms.
For enterprise and institutional customers, Sri Lanka Telecom PLC offers private networking and data connectivity services that map to categories such as Multiprotocol Label Switching (MPLS) VPNs (networking), point-to-point leased lines, and Ethernet-based links. These services are generally used to interconnect branch sites, data centers, and cloud on-ramps, and to carry traffic for ERP systems, core banking, transaction processing, and back-office applications. The underlying architectures typically involve IP/MPLS cores, Quality of Service (QoS) policies, and secure routing to support latency and availability requirements across multiple locations.
The company also maintains mobile network capabilities through its mobile operations, enabling mobile voice, SMS, and packet data services over cellular technologies such as 3G, 4G/LTE, and, where available, more recent standards (mobile communications). This mobile layer complements fixed connectivity and is used for field operations, point-of-sale connectivity, and remote worker access. Enterprise customers may combine mobile and fixed services for unified communication scenarios, failover connectivity, or machine-to-machine use cases where SIM-based connectivity is required.
Sri Lanka Telecom PLC provides data center, hosting, and cloud-oriented offerings (cloud infrastructure, data center services), including colocation, managed servers, and virtualized resource pools for enterprises that prefer local infrastructure, data residency within Sri Lanka, or proximity to domestic users. These facilities typically rely on standardized data center architectures, including redundant power, cooling, and network connectivity, and can be integrated with customers’ on-premises (on-prem) environments via VPNs or dedicated links to support hybrid IT models.
In addition, the organization participates in wholesale and carrier services by operating and accessing submarine cable systems and national backbone networks (carrier services). This enables international IP transit, bandwidth resale, and interconnection with global carriers and content networks. Such infrastructure is used by ISPs, content providers, and multinational enterprises that require connectivity into and out of Sri Lanka with Service Level Agreements (SLAs) tied to capacity and availability.
From a directory and taxonomy perspective, Sri Lanka Telecom PLC is positioned across multiple categories: fixed and mobile network services (networking, mobile communications), enterprise connectivity and VPN services (networking), cloud and hosting (cloud infrastructure, managed services), and wholesale carrier and international capacity services (carrier services). Its offerings are typically selected by enterprises, government agencies, and service providers seeking domestic network reach in Sri Lanka, integration between fixed and mobile connectivity, and access to locally hosted infrastructure and international bandwidth.
Our description of Sri Lanka Telecom PLC. Updated December 2025.
