KCT
KCT (한국케이블텔레콤) is a Seoul-based telecom operator and Taekwang Group subsidiary that delivers VoIP, MVNO mobile (Tplus), enterprise communications, and IoT emergency safety services to South Korean consumers, enterprises, and government clients across 1.7M VoIP lines and 500K mobile subscribers.
- Company typePrivate
- Founded2006
- HeadquartersSeoul, South Korea
- Headcount—
- GTM typeB2B and B2C
- OfferingServices
What KCT does
KCT (한국케이블텔레콤 / Korean Cable Telecom) is a Seoul-based, privately held period telecommunications operator founded in 2006 and consolidated under the Taekwang Group conglomerate. The company runs three core service lines: (1) internet phone (VoIP) services delivered through partnerships with nationwide System Operator (SO) cable TV operators — reaching 1.7M lines as of 2026; (2) MVNO mobile services under the Tplus brand, leveraging all three Korean mobile networks (SKT, KT, LG U+) at price points 30%+ below the major carriers — reaching 500K subscribers in 2026; and (3) enterprise business solutions including national toll-free numbers (1877, 1811, 1533, 1555), 080/050 special numbers, cloud-based ARS call center, ARS phone authentication, smart-work remote work tools, mobile call center, unified messaging (SMS/LMS/MMS/RCS/Alimtalk with KakaoTalk integration), image ring, international roaming (Tplro, 150+ countries), and an IoT-based emergency safety service for elderly and vulnerable populations.
The underlying technology stack combines VoIP infrastructure over cable operator networks with embedded SIM (eSIM) capability — KCT was first in Korea to offer phone eSIM (2022) and wearable eSIM (2020) — and a proprietary unified messaging platform with system integration modules and ISMS-certified security. Reported 2025 revenue is 977억 KRW (~$70M) on registered capital of 230억 KRW, with the Tplus brand holding the Korea First Brand Award in MVNO for four consecutive years and a six-year streak of top grades in Korea Communications Commission user protection evaluations.
KCT serves four primary customer segments: enterprise and business customers (financial services, retail, cable media, government, healthcare, and tech, including 신협, NHN, NICE평가정보, KCB, Daiso, CGV, 경찰청, and 당근마켓); price-sensitive individual consumers in the MVNO market; small businesses and sole proprietors using 080/050 numbers and image ring; and government/welfare organizations procuring the emergency safety service. Go-to-market blends a direct-to-consumer online channel (Tplus website and app with 5-minute eSIM self-activation), retail distribution through 650+ Daiso stores via Gogopactory, inside sales for enterprise (1877-8835), and co-branded plans with lifestyle brands (Olive Young, CGV) for consumer acquisition.
KCT firmographics
Firmographics- Name
- KCT
- Legal name
- (주)한국케이블텔레콤
- Website
- https://kcttel.com
- Company type
- Private
- Founded year
- 2006
- Operating status
- Operating
- Short description
- KCT (한국케이블텔레콤) is a Seoul-based telecom operator and Taekwang Group subsidiary that delivers VoIP, MVNO mobile (Tplus), enterprise communications, and IoT emergency safety services to South Korean consumers, enterprises, and government clients across 1.7M VoIP lines and 500K mobile subscribers.
- Ownership category
- akta.pro rank
Where KCT is headquartered
LocationHeadquarters
- HQ city
- Seoul
- HQ country
- South Korea
- HQ region
- Asia
Offices2 records
Markets served
KCT business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Technology or R&D, Operations, Personnel, Marketing or Sales, Infrastructure, Supply Chain
Revenue model
- Mobile Service (MVNO): Monthly subscription revenue from Tplus mobile plans. Revenue from three network operators (SKT, KT, LGU+) with prepaid and postpaid options.
- Internet Phone Services: Monthly subscription fees for VoIP services including basic fees and per-line charges. Additional revenue from add-on services like caller ID, call forwarding, and voicemail.
- Messaging Solutions: Per-message billing for SMS, LMS, MMS, RCS, and Alimtalk services. Volume-based pricing with discounts for higher usage.
- National Toll-Free Numbers: Monthly line fees plus per-call charges for nationwide 1877, 1811, 1533, 1555 prefix numbers. Additional fees for ARS and MO services.
- 080/050 Number Services: Monthly service fees and call charges for receiver-pays (080) and privacy protection (050) number services.
- Image Ring Service: Monthly subscription tiers (2,000-20,000 KRW) providing caller image display on recipient screens for spam prevention and brand promotion.
- International Roaming: eSIM data roaming services for travelers, providing connectivity in 150+ countries at reduced rates through Tplro brand.
- Enterprise Solutions: Cloud-based call center (ARS Call Center), mobile call center, smart work, and API-integrated messaging solutions for businesses.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Tplus Mobile - Basic Plans |
| Subscription | Monthly | Internet Phone - Basic Service |
| Subscription | Monthly | National Toll-Free Number (1877) |
| Subscription | Monthly | 050 Safety Number |
| Subscription | Monthly | 080 Receiver-Pays Number |
| Unit Pricing | Monthly | Image Ring Service |
| Subscription | Monthly | ARS Telephone Authentication |
| Subscription | Monthly | Smart Work Service |
| Subscription | Monthly | ARS Call Center (Cloud-based) |
| Subscription | Monthly | Mobile Call Center |
| Usage-based | Pay-as-you-go | Unified Messaging Solution |
| Usage-based | Pay-as-you-go | Data Roaming (Tplro) |
Go-to-market motion3 records
Distribution channels6 records
Marketing channels6 records
KCT product offering
Product offeringCore offering
KCT (Korean Cable Telecom) is a licensed Korean telecommunications carrier that provides VoIP-based internet phone services through nationwide cable operator (SO) partnerships, MVNO mobile services under the Tplus brand on SKT/KT/LGU+ networks, business communication solutions (cloud-based ARS call center, unified messaging, smart work, mobile call center), and IoT-based emergency safety monitoring. The company also operates the Tplro eSIM international data roaming service and special-number services (080, 050, 1877).
Differentiator
Problem solved
Functional benefit
Brands
- 티플러스 (Tplus): 알뜰폰(MVNO) 브랜드. SKT, KT, LGU+ 3사망 요금제를 모두 제공하는 모바일 서비스.
- 티플로 (Tplro)
Quantifiable outcome
- Mobile costs reduced by 30%+ compared to three major carriers
- +6 more outcomes
Companies that use KCT
Customer profileNamed customers22 records
Segments4 records
Ideal customer profiles5 records
KCT technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration3 records
AI capability3 records
Feature7 records
KCT partnerships and signals
Strategic signalPartnerships
16 partnerships are on record, tiered major, parent, minor and core.
- 올리브영majorCo-branded mobile plan partnership. Tplus offers Olive Young co-branded plan with 7,000 KRW monthly mobile gift card benefit.
- CGVmajorCo-branded mobile plan partnership. Tplus offers CGV co-branded plan with monthly movie theater voucher benefit.
- 고고팩토리 (Gogopactory)majorMVNO distribution partnership enabling nationwide SIM sales through Daiso retail stores. Tplus SIM cards sold at 650+ Daiso locations.
- 태광산업 (Taekwang Industries)parentParent company and main shareholder of KCT. Part of Taekwang Group media division. Provides corporate governance and strategic direction.
- 흥국생명보험minorTenant in headquarters building (Heung Kuk Life Building). Commercial relationship as landlord-tenant.
- SK텔레콤 (SK Telecom)coreMVNO network partnership providing mobile service on SKT network. Tplus offers plans using SKT infrastructure.
- KTcoreMVNO network partnership providing mobile service on KT network. Tplus offers plans using KT infrastructure.
- LG U+coreMVNO network partnership providing mobile service on LGU+ network. Tplus offers plans using LGU+ infrastructure.
- 다이소majorRetail distribution partner for Tplus SIM cards and mobile plans. Over 650 stores nationwide.
- NICE페이먼츠minorPayment processing services for credit card transactions.
- 뉴젠스minorDay/night customer complaint handling and system monitoring services.
- 한국정보통신진흥협회minorIdentity verification, communication fact/history provision, credit management, fraud prevention cooperation.
- 미래신용정보minorCredit management (debt collection) services.
- 고려신용정보minorCredit management (debt collection) services.
- 코리아크레딧뷰로minorCredit information inquiry services.
- 케이티씨에스minorPhone directory (114) information services.
Scale indicators11 records
Recent moves6 records
Expansion highlights6 records
KCT competitors and assessment
Company assessmentDirect peers
- Airalo: Global eSIM marketplace offering data roaming in 200+ countries. Comparable to KCT's Tplro brand as a digital-first eSIM data roaming service, representing both a competitor in cross-border connectivity and a benchmark for the global eSIM travel-tech model.
- SKTelink: SKT's MVNO subsidiary and one of the largest MVNO operators in Korea. Closely comparable business model — MVNO riding on SKT infrastructure with budget mobile plans for consumers — making it a head-to-head Tplus competitor.
- Hello Mobile (KT affiliate): KT-affiliated MVNO offering low-cost mobile service on KT's network. Comparable as a directly competing MVNO targeting the same price-sensitive consumer segment with similar budget plans.
- LG HelloVision: Korean cable operator offering bundled internet, VoIP, and telecom services to residential and enterprise customers. Comparable as a cable-based VoIP and communications services provider competing in the same SO cable and SMB segments as KCT.
Emerging players
- Holafly: International eSIM provider focused on Korean and Asian outbound travelers. Comparable to KCT's Tplro service as a focused eSIM roaming competitor addressing the same Korean outbound travel segment with similar digital-only distribution.
- Toss Mobile: Viva Republica (Toss)-backed MVNO launching budget mobile services bundled with Toss's fintech super-app. Comparable as a new-entrant MVNO leveraging a digital ecosystem to undercut traditional carriers and MVNOs like KCT.
Broad incumbents
- LG U+: Korea's third mobile carrier and the third host network for Tplus MVNO. Comparable as a fixed/mobile integrated carrier competing for the same enterprise and consumer communication budgets KCT serves.
- KT Corp: Korea's second-largest mobile carrier and a host network for KCT's Tplus MVNO. Comparable across fixed VoIP, enterprise telecom, and as both a wholesale counterparty and a competitor in B2B communications.
- SK Broadband (SKB): SK Group's fixed-line and broadband subsidiary offering VoIP, internet, and IPTV. Comparable as a major Korean fixed-line telecom provider with overlapping enterprise voice, data, and bundled communications offerings.
- SK Telecom: Korea's largest mobile network operator and host carrier for KCT's Tplus MVNO service. Comparable as the incumbent MNO whose wholesale access KCT depends on, and a benchmark for Korean telecom market dynamics.
Market position
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
KCT social profiles
Digital presenceKCT financial estimates
Financial estimateRevenue estimate
Valuation estimate
KCT leadership team
Management profileNumber of profiles
Profiles9 records
KCT subsidiaries and ownership
Company hierarchySubsidiaries2 records
KCT funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
KCT M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about KCT
What does KCT do?
KCT (Korean Cable Telecom) is a licensed Korean telecommunications carrier that provides VoIP-based internet phone services through nationwide cable operator (SO) partnerships, MVNO mobile services under the Tplus brand on SKT/KT/LGU+ networks, business communication solutions (cloud-based ARS call center, unified messaging, smart work, mobile call center), and IoT-based emergency safety monitoring. The company also operates the Tplro eSIM international data roaming service and special-number services (080, 050, 1877).
Is KCT a public or private company?
KCT is a private company. It is classified as corporate owned and is currently operating.
When was KCT founded?
KCT was founded in 2006.
Where is KCT based?
KCT is headquartered in Seoul, South Korea, in the Asia region.
How does KCT make money?
Eight revenue lines are on record. Mobile Service (MVNO) is the primary driver. The others are internet Phone Services, messaging Solutions, national Toll-Free Numbers, 080/050 Number Services, image Ring Service, international Roaming and enterprise Solutions.
Who are KCT's main competitors?
Direct peers on record are Airalo, SKTelink, Hello Mobile (KT affiliate) and LG HelloVision. Emerging players are Holafly and Toss Mobile. Broad incumbents are LG U+, KT Corp, SK Broadband (SKB) and SK Telecom.
Does KCT have an API?
No public API is recorded for KCT.