Chapter 3
Situation of TCA Members

Member List

Member List
*Symbols representing types of providedservices
1. Subscriber telephone
2. ISDN (excluding switched telephone,public telephone and international digitalcommunications service)
3. Switched telephone (excludinginternational telephone)
4-①. International telephone
4-②. International ISDN
5. Public telephone
6-①. Mobile phone (using a 3.9-generation
mobile communication system)
6-②. Mobile phone (using a 5th generation
mobile communication system)
6-③. Mobile phone (not using 3.9–4thgeneration mobile communicationsystems or a 5th generation mobilecommunication system)
7. PHS
8-①. IP phone (using 050/0AB-J number)
8-②. IP phone (not using 050/0AB-J number)
9. Wireless landline telephone
10. Satellite mobile communication service
11. FMC service
12. Internet connection service
13-①. FTTH access service
13-②. FTTH access service (using VDSL orother facility)
14. DSL access service
15. FWA access service
16. CATV access service
17. Mobile/PHS access service
18. 3.9-generation mobile phone accessservice
19. Fifth generation mobile communicationaccess service
20. Local 5G service

21. Frame relay service
22. ATM switch service
23. Public wireless LAN access service
24-①. BWA service (nationwide BWA service)24-②. BWA service (regional BWA service)24-③. BWA service (private BWA service)
25. IP-VPN service
26. Wide-area Ethernet service
27. Satellite access service
28-①. Leased line service (domestic)
28-②. Leased line service (international)
29. Unlicensed LPWA service
30. Value added service using
telecommunication services in 1 to 28 above
31. Internet-related service (excluding IPphone)
32-①. Mobile virtual network service (formobile phones)32-②. Mobile virtual network service (forPHS)
32-③. Mobile virtual network service (forlocal 5G service)
32-④. Mobile virtual network service (forBWA service)
33-①. Telecommunications service fordomain name facilities (as specified in
Article 59-2, paragraph (1), item (i)-(a))
33-②. Telecommunications service fordomain name facilities (as specified in
Article 59-2, paragraph (1), item (i)-(b))
33-③. Telecommunications service fordomain name facilities (as specified in
Article 59-2, paragraph (1), item (ii))
34-①. Telegram (involving acceptance anddelivery jobs)
34-②. Telegram (without acceptance anddelivery jobs)
35. Telecommunication services other than 1
through 33 above* Representation of service areas
Hokkaido
Tohoku District: Aomori, Iwate, Miyagi, Akita,
Yamagata, and Fukushima
Kanto District: Ibaraki, Tochigi, Gunma,Saitama, Tokyo, Chiba,Kanagawa, and Yamanashi
Shin-etsu District: Nagano and Niigata
Hokuriku District: Toyama, Ishikawa, and Fukui
Tokai District: Shizuoka, Aichi, Gifu, and MieKinki District: Shiga, Kyoto, Osaka, Hyogo,Nara, and Wakayama
Chugoku District: Tottori, Shimane, Okayama,Hiroshima, and Yamaguchi
Shikoku District: Tokushima, Kagawa, Ehime,and Kochi
Kyushu District: Fukuoka, Saga, Nagasaki,
Kumamoto, Oita, Miyazaki, andKagoshima
Okinawa*Compiled from the data in the questionnaire survey covering member companies based on the“Registered Member Companies” (Ministry of Internal Affairs and Communications).

Types of services

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◯

②
①
③②
①
④③②①

◯◯
◯

◯
◯

②①②①

◯◯◯

③②
①②①

◯

③②
①②①1 2 3 4 4 5 6 6 6 7 8 8 9 10 11 12 13 13 14 15 16 17 18 19 20 21 22 23 24 24 24 25 26 27 28 28 29 30 31 32 32 32 32 33 33 33 34 34 35◯◯

Service areas◯◯

Company

As of July 1, 2023

NIPPON TELEGRAPH
AND TELEPHONECORPORATION◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯−47−◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯

Nationwide◯

SKY Perfect JSATCorporation◯◯

Nationwide◯◯East Japan RailwayCompany◯◯

Nationwide◯

NTT CommunicationsCorporation◯◯◯Nationwide◯◯

ARTERIA NetworksCorporation◯◯◯Nationwide◯

SoftBank Corp.

◯◯◯

Nationwide◯◯◯◯◯KDDI CORPORATION◯

Hokkaido, TohokuDistrict, KantoDistrict, andShin-etsu District
Hokuriku District,
Tokai District,
NIPPON TELEGRAPH
Kinki District,
Chugoku District,
AND TELEPHONE
WEST CORPORATION Shikoku District,
Kyushu District,and Okinawa

NIPPON TELEGRAPH
AND TELEPHONE
EAST CORPORATION

Chapter 3Situation of TCA Members②①③②①④③②①◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯−48−◯◯◯

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◯

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◯
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◯◯◯◯◯

◯◯◯

◯◯◯◯

◯◯

◯
◯◯◯◯◯◯

Mie◯

CTY.co.,Ltd◯

Newmedia
Co., Ltd.

Yonezawa City,
Nan’yo City,
Takahata Town, andKawanishi Town inYamagata
Hakodate City,Hokuto City, andNanae Town inHokkaido
Niigata City in Niigata
Fukushima City inFukushima◯

Tokyo◯
◯◯◯◯
◯◯◯◯
◯
◯

Nationwide
Kanto District(Tokyo andKanagawa)

◯◯

◯

◯◯
◯
◯◯
◯
◯◯◯
◯◯◯
◯

◯

Cable Television
Shinagawa inc.

Nara, Osaka,Kyoto, Mie, andAichi◯

Shinetsu District◯

LCV Corporation◯

Nationwide◯

J-POWER
Telecommunication
Service Co., Ltd.

◯◯

Kanto District◯

Japan Digital ServeCorporation◯

Okinawa◯

OTNet Company,Incorporated◯◯Nationwide◯

QTnet, Inc.

◯◯Nationwide◯

STNet, Incorporated◯

Chugoku District◯

Enecom,Inc.

◯Nationwide

its communications
Inc.

◯TokyoOPTAGE Inc.

Kintetsu Cable
Network Co., Ltd.

②①

Tokai District, andNagano

◯
◯

Chubu
Telecommunications
Company,Incorporated◯◯

Hokuriku District◯

Hokuriku
Telecommunication
Network Co.,Inc◯◯

Tohoku District,and Niigata③②①

TOHKnet Co., Inc.

②
①Hokkaido◯

Hokkaido
Telecommunication
Network Co., Inc◯◯◯

Nationwide◯

Sony Network
Communications Inc.

◯◯

Nationwide②①PCCW Global (Japan)
K.K.

1 2 3 4 4 5 6 6 6 7 8 8 9 10 11 12 13 13 14 15 16 17 18 19 20 21 22 23 24 24 24 25 26 27 28 28 29 30 31 32 32 32 32 33 33 33 34 34 35③②①Service areas②①

Company

Types of services◯◯

Member List

②
①
③②
①
④
③
②
①

②
①

③②①

◯
◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯◯

Nationwide◯◯◯

AVICOM JAPAN CO.,LTD.

◯Nationwide◯◯

Tokyo TelemessageInc.

◯◯◯

Nationwide◯◯◯

Rakuten Mobile, Inc.

◯◯

Okinawa◯

OKINAWA CELLULARTELEPHONE
COMPANY◯

Nationwide◯

NTT DOCOMO, INC.

◯◯

Kanto District◯◯

IRUMA CABLETELEVISION CO., LTD◯◯◯

Western Tottori◯◯

CHUKAI CABLETELEVISION SYSTEMOPERATOR◯

Ichihara City, andMidori Ward,Chiba City◯◯

Ichihara Cable
Television Corporation

◯

Mie◯

Igaueno Cable
Television Co.,Ltd.

◯Tokai District◯◯◯◯◯Mie

COMMUNITY
NETWORK CENTER
INCORPORATED◯◯②①◯◯Matsusaka CATV
Station Co.,Ltd.
(MCTV)

Tohoku District◯◯◯◯

Cable Networks AKITA◯◯Nationwide◯

TOKAICommunicationsCorporation◯◯◯Tokai District◯

advanscope inc.

◯Aichi◯

MICS NETWORKCORPORATION②①Nationwide◯

JCOM Co., Ltd.

③②①TOKYO CABLE
NETWORK, INC.

Hokkaido, Iwate,
Miyagi,
Yamagata,Tochigi,
Yamanashi,Tokyo,
Kanagawa,
Nagano, Nigata,
Toyama,Ishikawa, Fukui,
Shizuoka, Gifu,
Mie, Nara,
Wakayama,
Kyoto, Hyogo,Tottori, Shimane,
Okayama,
Hiroshima,
Tokushima,
Kagawa, Ehime,
Fukuoka,
Nagasaki,
Kumamoto, Oita,
Miyazaki,Kagoshima,
Okinawa

1 2 3 4 4 5 6 6 6 7 8 8 9 10 11 12 13 13 14 15 16 17 18 19 20 21 22 23 24 24 24 25 26 27 28 28 29 30 31 32 32 32 32 33 33 33 34 34 35②①Service areas◯

Company

Types of services−49−Chapter 3

Situation of TCA Members

②①③②
①
④③②①②
①③②①

◯◯

◯

◯

−50−◯

◯

Nationwide◯

UQ Communications
Inc.

②①Osaka②①Kansai Airports
Technical ServicesCo.,Ltd1 2 3 4 4 5 6 6 6 7 8 8 9 10 11 12 13 13 14 15 16 17 18 19 20 21 22 23 24 24 24 25 26 27 28 28 29 30 31 32 32 32 32 33 33 33 34 34 35③②①Service areas②①

Company

Types of services◯Telecom Data Book 2023
(Compiled by TCA)

Planned / Edited / Published by Telecommunications Carriers Association
Koshin Bldg. 2F
1-10 Kanda-Ogawamachi, Chiyoda-ku, Tokyo 101-0052, Japan
Tel. 03-5577-5845 Fax. 03-5296-5520
https://www.tca.or.jp/Co-edited / Printed HARIU Communications Co., Ltd.
Published: February 2024
Price: ¥2,200 (¥2,000 + 10% tax)
*Reproduction forbidden
Incorrectly collated books will be replaced
ISBN978-4-906932-23-8©2024 printed in Japan