沖縄セルラー電話（株）

What 沖縄セルラー電話（株） does

Okinawa Cellular Telephone Co., Ltd. (沖縄セルラー電話株式会社) is a privately-held regional telecommunications subsidiary of KDDI Corporation, operating the au brand mobile and connectivity services exclusively within Okinawa prefecture, Japan. The company serves individual consumers and small business subscribers through KDDI's nationwide distribution infrastructure, which includes au Style and au shop physical retail outlets, the au Online Shop e-commerce platform, phone and chat customer support centers, and a regional service portal (okinawa-cellular.jp) for localized maintenance and customer communications.

The core product offering is au mobile telecommunications, including smartphones, feature phones, tablets, and data communication devices delivered over 5G and 4G LTE networks, with the company participating in the au Starlink Direct satellite connectivity partnership to extend coverage to remote island areas. Beyond core mobile, the company sells and supports an extensive bundled ecosystem inherited from KDDI: auひかり fiber broadband, auでんき electricity and regional gas partnerships, financial services (au Jibun Bank, insurance, credit cards, housing loans, iDeCo), the Ponta loyalty program, mobile payment via au PAY, and subscription entertainment bundles with Netflix, Amazon Prime, DAZN, Apple Music, and others. Sub-brands UQ mobile and povo provide price-segment alternatives within the same parent group.

The revenue model is predominantly recurring subscription-based on mobile and broadband contracts, with one-time device sales and bundled utility, financial, and content service fees as supplementary streams. Pricing follows tiered unit-pricing structures (visible in the gas utility tiers, with mobile plan specifics not disclosed in the source data). Customer concentration is mass-market B2C across the Okinawa population base, with no enterprise anchor customers. The company holds no public listing, has no disclosed funding history, and operates without an independent AI capability footprint, functioning as a regional sales, service, and operational arm within the KDDI corporate structure.

Name

沖縄セルラー電話（株）

Legal name

沖縄セルラー電話株式会社

Website

https://au.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Okinawa Cellular Telephone Co., Ltd. is a privately-held regional subsidiary of KDDI Corporation that operates the au brand mobile, broadband, energy, financial, and entertainment services for individual consumers and small businesses in Okinawa prefecture, Japan.

Ownership category

akta.pro rank

Product category

Mobile Telecommunications

NAICS

Wireless Telecommunications Carriers (except Satellite) (517112), Wired and Wireless Telecommunications (except Satellite) (5171)

SIC

Radiotelephone Communications (4812)

akta.pro primary industry

Consumer Mobile Network Operators (Retail MNOs) (HDAIAAAA)

akta.pro secondary industry

Carrier Billing & Telco Mobile Money (FSAMAEAD)

Keywords

• Mobile telecommunications
• Mobile network services
• Smartphone plans
• Fiber internet service
• Mobile payment services

Headquarters

HQ city

Naha

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Mobile voice and data services: Monthly subscription fees for mobile phone services including voice, SMS, and data plans under the au brand in Okinawa prefecture
2. Device sales: Sale of smartphones, tablets, and mobile devices through au shops and au Online Shop
3. Energy services (ほくでんガス for au): Gas services in partnership with Hokkaido Electric Power, providing utility bundle services with Ponta point rewards

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels4 records

Core offering

Okinawa Cellular Telephone operates au-brand mobile telecommunications services for the Okinawa prefecture, offering smartphones, mobile voice and data plans, fiber-optic home internet (auひかり), mobile payment solutions (au PAY), electricity and gas utilities, and bundled entertainment and financial services. As a regional subsidiary of KDDI, it manages the au customer experience locally while leveraging KDDI's nationwide network and ecosystem partnerships including Ponta points and Starlink satellite integration.

Product overview

au is a comprehensive telecommunications and lifestyle services platform offered by Okinawa Cellular Telephone Corporation in Okinawa, Japan. The offering operates as a multi-service ecosystem rather than a single unified product. The core mobile service (auスマートフォン・携帯電話) provides voice and data connectivity alongside multiple sub-brands including budget-focused UQ mobile and customizable povo plans. The portfolio integrates broadband internet (auひかり), a subscription entertainment service (Pontaパス), mobile payment solutions (au PAY and Pontaポイント), financial and insurance services, and regional energy/gas services (electricity, natural gas across Hokkaido, Tokyo, Kansai, Chubu, and Kyushu regions). Supporting infrastructure includes My au customer portal, au Online Shop e-commerce platform, and the au PAY マーケット online marketplace. This platform-plus-modules architecture enables au to serve as a one-stop lifestyle hub combining telecommunications with financial services, entertainment, utilities, and retail.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• au Starlink Direct provides connectivity in areas where traditional cellular coverage is challenging, particularly beneficial for remote areas of Okinawa islands

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Six partnerships are on record, tiered core and flagship.

• Starlink (SpaceX)coreTechnology or Integrationau brand integration with Starlink satellite technology through 'au Starlink Direct' service, providing extended connectivity coverage particularly in remote island areas of Okinawa where traditional cellular infrastructure is challenging. This partnership enhances coverage capabilities for the regional subsidiary.
• NetflixflagshipGTM or Marketing PartnerKDDI/au partnership offering Netflix subscriptions bundled with au services, including promotional campaigns where au customers receive Netflix activation benefits and gift promotions. Okinawa Cellular customers can access these bundled offerings.
• Amazon (Prime)flagshipGTM or Marketing PartnerPartnership offering Amazon Prime subscriptions to au customers with promotional periods of 2 months free for new subscribers, driving customer acquisition across all KDDI regional subsidiaries including Okinawa Cellular.
• 北海道電力株式会社 (Hokkaido Electric Power)flagshipStrategic or Co-development PartnerEnergy service partnership providing 'ほくでんガス for au' (Hokuden Gas for au) gas services, offered through KDDI and Okinawa Cellular as sales agent. Hokkaido Electric provides the actual gas supply while KDDI handles billing and customer management through au Ponta points system.
• auエネルギー&ライフ株式会社 (au Energy & Life)coreStrategic or Co-development PartnerKDDI group company handling energy services (electricity and gas) as sales agent for regional power companies. Provides bundled utility services across all KDDI subsidiaries.
• 株式会社ロイヤリティ マーケティング (Loyalty Marketing)coreTechnology or IntegrationPonta point program operator providing loyalty rewards across KDDI services. Ponta points can be earned and redeemed across au services, contributing to customer retention strategy.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Rakuten Mobile: Japan's newest MNO and aggressive price challenger in Okinawa. Competes directly via low-cost unlimited data plans and Rakuten ecosystem (Rakuten Pay, Rakuten Points) that mirror au's Ponta-driven bundling strategy.
• SoftBank Corp: Major Japanese MNO and direct competitor to au in Okinawa, offering similar consumer mobile, fiber (SoftBank Air/SoftBank Hikari), energy, and Yahoo-linked ecosystem services. Competes head-to-head on price and bundled value.
• UQ Communications: KDDI group sub-brand (UQ mobile) offering mid-tier wireless services; effectively a sister brand within the same group that competes for the same Okinawa consumer wallet at a lower price point.
• NTT Docomo: Japan's largest wireless MNO, directly competing with au/Okinawa Cellular for consumer and enterprise mobile subscribers across Japan including Okinawa. Operates its own 5G/4G network with overlapping product portfolio (mobile, fiber, finance, d-Ponta equivalent).

Emerging players

• J:COM: Cable TV/broadband provider that bundles mobile MVNO service in select areas of Japan; competes in the same household-connectivity bundle category as au ひかり + au mobile, with limited Okinawa presence.

Broad incumbents

• NTT Communications (NTT East/West): Incumbent fixed-line and fiber operator (Flet's Hikari) that partners with Docomo for mobile bundles; competitive overlap with au ひかり home internet in Okinawa and indirect overlap with mobile retail via Docomo agency.
• KDDI Corporation: Parent company and nationwide operator of the au brand; comparable in product mix and strategy but operates at national scale. Okinawa Cellular is effectively a regional agency/operating entity within KDDI's footprint.

Others

• Starlink (SpaceX): Satellite internet operator partnered with au for direct-to-device connectivity; adjacent rather than competitive, but represents both a technology enabler and a potential long-term disintermediation risk to terrestrial MNOs.
• Ponta Loyalty Marketing: Loyalty program operator and core ecosystem enabler behind au Ponta points; comparable in customer-retention mechanics to Docomo's d-Points and Rakuten Points across the Japanese mobile market.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/%E6%B2%96%E7%B8%84%E3%82%BB%E3%83%AB%E3%83%A9%E3%83%BC%E9%9B%BB%E8%A9%B1%EF%BC%88%E6%A0%AA%EF%BC%89

Revenue estimate

Valuation estimate

Number of profiles

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 沖縄セルラー電話（株）