What DREAMLINE does

DREAMLINE (드림라인 주식회사) is a privately-held Korean Total ICT infrastructure operator headquartered in Seoul (Guro-gu) under Representative Director Han Yun-jae. The company is organized into three service divisions — Network, Submarine & Solutions, and Commerce — and provides end-to-end connectivity from submarine cable to last-mile access. Its infrastructure assets include ownership of the JAKO submarine cable (Busan-Fukuoka, marketed as the shortest Korea-Japan route) and participation in the AUG East submarine cable consortium (Gunsan-Singapore-Wada, ~7,000 km, 8 countries, targeted 2027), a ~57,000 km nationwide optical fiber backbone connecting five major hubs (Seoul, Daejeon, Gunsan, Busan, Ulsan) via physically diverse routes, two purpose-built data centers (Guro DC in central Seoul and Incheon DC opened 2024 for AI/GPU workloads), shared tower infrastructure, and Global PoP presence in Hong Kong and Japan.

Service offerings include dedicated lines, DCI, DIA, Cloud Connect (private connectivity to AWS, Azure, GCP), Government Network Service (GNS, ISMS 13-108 certified), KEPCO Smart Grid (Distribution Automation and AMI), VoIP, 080/050/060 number services, enterprise messaging (UMS — SMS, LMS, MMS, KakaoTalk AlimTalk, Brand Message, RCS, WebFax, VMS), international messaging (E-Z Messaging), international calling, and MVNO mobile service leveraging KT's network under the Dream Mobile brand.

The business model combines subscription/recurring revenue (dedicated lines, data center colocation, MVNO, government circuits, KEPCO managed services, tower sharing), usage-based revenue (messaging per message, international calling per minute, web fax per page), and multi-year IRU contracts (dark fiber, spectrum). The customer base spans national and local government agencies (81 government districts under GNS), KEPCO, mobile network operators (tower sharing), global carriers and hyperscalers (submarine capacity), financial institutions (Cloud Connect), commerce and platform businesses (messaging), and individual consumers and SMBs (MVNO, messaging self-serve). Distribution is hybrid: enterprise and government served via direct field sales through six Korean regional offices; SMB and consumer served via self-serve web portals (ums.dreamline.co.kr, dreammobile.kr, gns.dreamline.co.kr); international carrier sales handled by a dedicated global business function.

Name

DREAMLINE

Legal name

드림라인 주식회사

Website

https://dreamline.co.kr

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

51–100 employees

Short description

DREAMLINE is a privately-held Korean Total ICT infrastructure operator owning submarine cables (JAKO, AUG East), ~57,000 km of nationwide optical fiber, two data centers, and tower infrastructure, serving government, enterprise, KEPCO utilities, and Korean consumers.

Ownership category

akta.pro rank

Product category

Telecommunications Infrastructure

NAICS

Wired Telecommunications Carriers (517111), Wired and Wireless Telecommunications Carriers (except Satellite) (51711), Wired and Wireless Telecommunications (except Satellite) (5171), Power and Communication Line and Related Structures Construction (23713)

SIC

Communications Services, Nec (4899), Telephone Communications (No Radiotelephone) (4813), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Electric Services (4911)

akta.pro primary industry

Underground & Submarine Cable EPC (HV/EHV) (EUAEABAB)

akta.pro secondary industries

Communication Towers, Poles, Conduit & Outside Plant (OSP) Infrastructure (EUADAIAL), Site Security, Monitoring & Remote Operations (NOC/IoT) (HDAIAKAH), Private Cellular Networks for Utilities (Private LTE/5G Core, RAN, SIM/eSIM) (EUADAIAF), Line Monitoring & Sensors (DLR, conductor temperature/sag, fault passage, vibration/icing sensors) (EUADADAL)

Keywords

• Telecommunications infrastructure
• Submarine cable services
• Data center colocation
• Enterprise messaging services
• Mobile virtual network operator

Headquarters

HQ city

Songpadong

HQ country

South Korea

HQ region

Asia

Offices9 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Infrastructure, Technology or R&D, Personnel, Operations, Marketing or Sales, Supply Chain

Revenue model

1. Network Services (Dedicated Lines, DCI, DIA): Recurring revenue from dedicated line, DCI (Data Center Interconnect), and DIA (Dedicated Internet Access) services. Services provide stable, secure connectivity for enterprise and government customers with SLA-backed quality.
2. Data Center Services: Colocation and managed services from Guro DC and Incheon DC optimized for AI and GPU workloads. Revenue from rack space, power, and managed services for enterprise cloud and AI customers.
3. MVNO Mobile Services: Mobile services (postpaid and prepaid plans) built on KT's network at competitive prices. Both individual and enterprise IoT connectivity offerings. Revenue from monthly subscriptions and usage charges.
4. Enterprise Messaging (UMS): Bulk SMS, LMS, MMS, KakaoTalk messaging services with per-message or subscription pricing. Revenue based on message volume and premium features like Kakao AlimTalk and RCS.
5. International Calling: International call services from Korea with per-minute pricing for calls to US, China, Japan, Vietnam, and other countries. Revenue from call duration and international termination fees.
6. VoIP Services: Internet telephone service with up to 30% cost reduction versus regular phone calls. Revenue from base charges, local/long-distance call fees, and international calls. Features include call forwarding, call recording, and contact center services.
7. Tower Infrastructure Services: Shared tower infrastructure for mobile network operators, public institutions, and local governments. Revenue from tower sharing arrangements, site licensing, and construction services.
8. Smart Grid Network Services: KEPCO Distribution Automation and AMI services connecting power grid infrastructure. Managed services for utility companies with real-time monitoring and remote control capabilities.
9. Submarine Cable Capacity: International bandwidth and capacity services through JAKO (Korea-Japan) and AUG East (Korea-Singapore-Japan) submarine cables. Revenue from wavelength, spectrum, and dark fiber services for global carriers and hyperscalers.
10. Toll-Free Services (080, 050, 060): Business telephone number services including 080 toll-free, 050 safe number, and 060 information services. Revenue from monthly fees and per-call or per-minute charges.
11. Government Network Services: CCTV transmission lines and secure communications for government agencies and public institutions under the GNS framework. Revenue from dedicated circuit services with government SLA requirements.

Pricing tiers

Go-to-market motion3 records

Distribution channels6 records

Marketing channels5 records

Core offering

DREAMLINE is a South Korean Total ICT Solution Platform Company that operates submarine cable systems (JAKO Korea-Japan and AUG East Korea-Singapore-Japan), a 57,000 km nationwide optical fiber backbone, hyperscale data centers (Guro DC, Incheon DC), and shared tower infrastructure. The company delivers end-to-end connectivity services including dedicated lines, data center interconnect (DCI), direct internet access (DIA), cloud connect, government network services (GNS), and KEPCO smart grid networks for enterprise and government customers, alongside commercial offerings such as VoIP, enterprise messaging (UMS), international calling, and an MVNO mobile service (Dream Mobile) for individual consumers.

Product overview

DREAMLINE is a Total ICT Solution Platform Company providing integrated network infrastructure and communication services across land, sea, and cloud. Its Network division covers core infrastructure: Submarine Cable Infrastructure (JAKO Korea-Japan and AUG East Asia cables), Dedicated Line and Backhaul Infrastructure (nationwide backbone through Seoul, Daejeon, Gunsan, Busan, Ulsan), DCI for cloud and AI traffic, Data Centers (Guro and Incheon optimized for GPU/AI workloads), Tower Based Infrastructure, Cloud Connect (dedicated private connectivity to AWS, Azure, GCP), Global PoP (Hong Kong and Japan), Government Network Service (GNS), and DIA (domestic and international IP transit). The Solutions division includes KEPCO Smart Grid Network (Distribution Automation and AMI). The Commerce division serves enterprise communication needs with VoIP, National Main Number, 080 Toll-Free, 050 Safe Number, 060 Information services, Enterprise Messaging/UMS (bulk SMS, KakaoTalk, WebFax, VMS), International Messaging, International Calling, and MVNO (built on KT network). The company positions itself as an 'AI Networking Leader' with end-to-end network coverage from backbone to last-mile access.

Differentiator

Problem solved

Functional benefit

Brands

• Dream Mobile: MVNO service brand offering prepaid and postpaid mobile plans based on KT's mobile network
• E-Z Messaging
• 드림문자 (DREAMCHAR)
• GNS (Government Network Service)

Products and services

• Submarine Cable Infrastructure Global dedicated network infrastructure through international submarine cable systems including JAKO (Busan-Fukuoka, designed as the shortest Korea-Japan route) and AUG East (Korea-Singapore-Japan), offering wavelength, spectrum, and dark fiber services for global carriers and hyperscalers.
• Dedicated Line Dedicated network services delivering stability and security through Dreamline's own nationwide backbone, providing dedicated bandwidth for enterprise and government connectivity.
• Backhaul Infrastructure High-capacity transmission backhaul connecting major cities and national facilities across Korea through five key hub locations: Seoul, Daejeon, Gunsan, Busan, and Ulsan, with physically diverse routes.
• DCI (Data Center Interconnect) High-performance DCI networking designed for cloud and AI traffic with stable, low-latency connectivity between data centers.
• Guro Data Center Urban data center located in central Seoul offering excellent connectivity to key business districts (Gangnam, Sangam, Pangyo) with redundant power backup, dual network configuration, and precise temperature/humidity control.
• Incheon Data Center Purpose-built data center optimized for AI and GPU workloads with high-capacity power design, reliable dual power infrastructure, and cooling efficiency for cloud computing environments.
• Tower Based Infrastructure Nationwide shared tower infrastructure for wireless coverage installed across roads, parks, railways, residential areas, and mountainous regions to eliminate coverage gaps for mobile carriers, public institutions, and local governments.
• Cloud Connect Secure private connectivity service linking customer IT infrastructure to major cloud providers (AWS, Microsoft Azure, GCP) via dedicated lines, bypassing the public internet for stable, low-latency, high-speed access with multi-cloud and hybrid environment support.
• Global PoP
• Government Network Service (GNS) Secure communication infrastructure connecting national agencies and public facilities including CCTV systems, sensors, and information networks based on a nationwide optical communication backbone with real-time monitoring and 24/7 support. Covers 81 government districts.
• KEPCO Smart Grid Network Smart grid network services for KEPCO including Distribution Automation (real-time monitoring and control of power distribution switches) and AMI (Advanced Metering Infrastructure) for smart metering and energy efficiency management.
• DIA (Direct Internet Access) Direct internet access service providing stable, high-speed connectivity through direct peering with major domestic and international telecom networks, supporting domestic and international IP transit with optimized routing and bandwidth scalability.
• VoIP (Internet Telephone) Internet-based telephone service providing affordable call rates with up to 30% cost reduction compared to regular phone calls, supporting call forwarding, internal calls, call recording, and contact center services.
• National Main Number Service that unifies multiple phone numbers used across a business into one representative number, with ARS menu configuration, call distribution, and integration with CRM/ERP systems.
• 080 Toll-Free Toll-free service allowing businesses to consolidate multiple phone numbers into a single 080 number, with free inbound calling for customers, ARS auto-response, call distribution, and campaign management.
• 050 Safe Number Virtual secure number service that assigns a replacement number to prevent exposure of actual phone numbers, protecting personal information in e-commerce, delivery, and service transactions.
• 060 Information Virtual secure number service for information providers, offering content categories including news, education, music, health, culture, and fortune services with call charges and information usage fees.
• Enterprise Messaging (UMS) Integrated messaging platform managing and sending bulk SMS, LMS, MMS, KakaoTalk AlimTalk, KakaoTalk Brand Message, RCS, 080 Opt-Out, WebFax, and VMS, with API and web integration, server redundancy, and ISMS certification.
• International Messaging (E-Z Messaging) Business communication service enabling fast global message delivery through international gateway, supporting global OTPs, authentication messages, and marketing messages with direct interconnection to mobile operators worldwide.
• International Calling International call service from Korea using stable international network with affordable rates for USA, Canada, China, Japan, Vietnam, Mongolia and other countries via 00380 and 00789 prefixes, with department-specific billing.
• MVNO (Mobile Virtual Network Operator) Mobile service built on KT's network, offering the same network quality as KT with prepaid and postpaid plans (Mindful Dream, Peaceful Dream, Number-Only Dream, DREAM P0, DREAM P36, DREAM 56) at competitive prices, plus IoT connectivity.

Quantifiable outcome

• Up to 30% reduction in communication costs compared to regular phone calls
• +4 more outcomes

Named customers11 records

Segments9 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability3 records

Feature10 records

Partnerships

Four partnerships are on record, tiered core.

• KT CorporationcoreStrategic or Co-development PartnerDreamline's MVNO service is built on KT's mobile network infrastructure, leveraging the same network quality as KT with competitive pricing. This partnership enables Dreamline to offer mobile services without building its own mobile network, utilizing KT's nationwide coverage and network quality.
• KEPCO (Korea Electric Power Corporation)coreStrategic or Co-development PartnerDreamline provides KEPCO with Distribution Automation services (connecting power grid switches to control centers via optical communication) and AMI (Advanced Metering Infrastructure) services for smart metering. This is a critical infrastructure partnership for Korea's smart grid modernization, enabling real-time monitoring, remote meter reading, and power supply control across the national grid.
• Global Partners for Submarine Cable Projects (JAKO, AUG East)coreStrategic or Co-development PartnerJAKO submarine cable project is carried out together with global partners connecting Busan (Korea) and Fukuoka (Japan). AUG East brings together major carriers and global CSPs with 8 countries participating across the Korea-Singapore-Japan route spanning approximately 7,000 km. These partnerships enable Dreamline to operate international submarine cable infrastructure.
• Kakao (Kakao Talk)coreTechnology or IntegrationDreamline integrates KakaoTalk messaging (AlimTalk, Brand Message) into its enterprise messaging platform (UMS). This enables businesses to send KakaoTalk messages alongside SMS/LMS/MMS through Dreamline's integrated messaging service, leveraging KakaoTalk's dominant position in Korean mobile communications.

Scale indicators10 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• LG U+: Korean tier-1 telecom carrier operating mobile, fixed-line, data center, and enterprise network services. LG U+ competes directly with Dreamline in domestic enterprise connectivity, dedicated lines, and data center services.
• KT Corporation: Korea's second-largest telecom carrier and the network provider on which Dreamline's MVNO is built. KT operates submarine cables, nationwide fiber, data centers, and enterprise services directly overlapping Dreamline's portfolio, and is simultaneously a partner and a competitor.
• PCCW Global (HGC Global Communications): Hong Kong-based international carrier operating submarine cable capacity and enterprise connectivity across Asia. Directly comparable to Dreamline's Global PoP and submarine cable wholesale business for hyperscaler and OTT customers.
• Sejong Telecom: Korea-focused fiber and submarine cable operator with a comparable mix of dedicated lines, DC services, and wholesale bandwidth. Closest direct peer by product mix and customer base within Korea.

Emerging players

• Aqua Comms: Submarine cable operator focused on trans-Atlantic and intra-Asia routes. Comparable emerging player model: carrier-owned submarine capacity sold wholesale to global content and carrier customers.
• HKBN: Hong Kong-based fiber and enterprise telecom operator with growing international footprint. Comparable to Dreamline as a non-incumbent fiber-led carrier competing in enterprise connectivity with submarine cable access.

Broad incumbents

• Tata Communications: Global wholesale carrier with submarine cable assets and enterprise network services across Asia-Pacific. Competes with Dreamline for hyperscaler, OTT, and global carrier bandwidth customers in the region.
• SK Telecom: Korea's largest mobile operator with a broader portfolio spanning mobile, fixed, cloud, and DC. Competes with Dreamline across enterprise connectivity and infrastructure services as part of a much larger bundle.
• NTT Communications (NTT East / NTT West): Japanese telecom incumbent with extensive submarine cable ownership across the Asia-Pacific and enterprise network services that overlap with Dreamline's Global PoP and dedicated line offerings into Korea and Japan.
• China Telecom Global: Global carrier arm of one of China's three state telecom operators, operating submarine cables and enterprise networks across Northeast and Southeast Asia. Comparable international carrier competitor on Korea-Asia routes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/dreamline-ko

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about DREAMLINE