Internet, Telephone, Mobile & WiFi

Asahi NET
Internet services: fiber-optic broadband, ADSL broadband and mobile broadband.
DoCoMo
Mobile services. With branches all over Tokyo as indicated in the website.
Asiance Internet
Provide domain services, website development and web hosting services to clients. Address : Level 9, Ariake Frontier Building Tower B 3-1-25 Ariake, Koto-ku Tokyo 135-0063 Japan
SonixNet
Internet, TV and telephone services. Tokyo office located at Azabu Maruka Building 3F, 3-8-2 Higashi Azabu, Minato-ku.
Nippon Information & Communication Corp.
Provide management-related solutions in various fields such as systems development, products services, network services, full line-up of IBM hardware software. Address : 15th Fl.12288;St. Lukes Garden Tower 8-1, Akashi-cho, Cy
JAL ABC
Mobile phone rental and wifi use within Japan.
J & Y
Cellular phone and wifi rental. Open Monday to Saturday 09:30-17:30. Tokyo
Rakuten
Full-line internet services company centered on e-commerce as a business model. Located at Shinagawa Seaside Rakuten Tower, 4-12-3 Higashi-Shinagawa, Shinagawa-ku.
Itscom
Cable television provider in Tokyo serving Setagaya, Shibuya, Machida, Ota and Meguro areas. Also, offers internet and phone services. Phone number open weekdays 09:30-18:30 and weekends 09:30-22:00.
Narita Cable TV
Cable television provider in Narita city, they also offer telephone and internet packages. Open weekdays 09:00-17:30 at 2-2-5 Igodai, Narita City.
au
Mobile and internet company.
Japan Domain Registration
Provides .jp domain registration, ne.jp/.gr.jp registration, co.jp domain registration, API system for automated registration and reseller hosting from 10GB. Address : Dai-san Umemura Bldg. #903, 3-9-3 Nishi-shinjuku, Shinjuku-ku, Tokyo, Ja...
WiFi BANK
Mobile Pocket WiFi with unlimited 3G ? 4G
Xmobile
Mobile phone rental; dialing within Japan only. Open Monday to Friday 09:30-18:00; Saturday 12:00-18:00. Located at Narita Airport.
eAccess
Fixed-line and mobile internet access. Located at Toranomon Twin Building, 2-10-1 Toranomon, Minato-ku.
Wi2 300
Public wireless LAN service accessible in many areas around Tokyo including in the Airport Limousine Bus. Office located at Daiwa Ginza Building 4F, 6-2-1 Ginza, Tyuuou-ku.
Japan Communications Inc.
Mobile data and voice communications services for corporations, professionals and individuals. One of its products is a visitor sim.  Tokyo headquarters is located at 4-1-28 Toranomon, Minato-ku.
TelecomSquare
Mobile phone and mobile wifi router rental. Counters are located in all major airports including Narita Airport Terminal 1 and 2.
JAPAEMO
Mobile phone rental and wifi modem rental. Dialing within Japan only. Open Monday to Friday 10:00-20:00; Saturday 11:00-19:00. Located at Narita Airport.
SKY
24/7 mobile phone rental located at the Narita Airport.
G-Call
Mobile phone rental and wireless USB modem rental in Japan.
TIAT STATION
PC rental with internet access and mobile phone rental. Available at Haneda Airport.
SpinNet
Services: VOIP phone, email with mail virus check and mail filtering and forwarding and personal homepage including web filtering and on-site support.
Internap Japan
Internet connectivity services. Headquarters located at 7th Floor Kanda Kaji-cho Chitose Bldg., 3-3-12 Kanda Kaji-cho,Chiyoda-ku, Tokyo 101-0045 Japan
T-Mark Inc.
Internet-based marketing and consumer communication activities such as search engine development and integrated hosting solutions. Tokyo office located at Kichijoji Kitamachi, 1-1-19-2F Musashino-shi.
Aineo Corp.
Provides outsourced computer, network, and telephone systems support. Address : 4-4, Iwamoto-cho 1-chome, Chiyoda-ku, Tokyo 101-0032.
JCR System Japan
Mobile phone rental from iPhone to android phones and mobile internet solutions.
Nakayo Telecommunications, Inc.
Manufacturing and sales of telecommunications equipment such as key telephone systems, telephone sets, telephone parts, switching equipment and data equipment. Address : Tobu Fuji Bldg. 24-4, Sakuragaoka-cho, Shibuya-ku, Tokyo 150-0031.
XCom Global
Rental of mobile phones; dialing is limited within Japan. Open Monday to Friday 09:00-19:00; Saturday, Sunday and holiday 09:00-17:00. Located at Narita Airport.
J-Com Co., Ltd.
Cable television company in Tokyo offering some English language channels. Also, they offer internet, telephone and mobile phone services. Telephone number open everyday 09:00-21:00. Office located at 5-22-1 Takanodai, Nerima-ku.
PBXL
Cloud telephony Tokyo, business telephone networks, cisco managed services, carrier services and tele conferencing solutions.Open Monday to Friday 09:30-18:30 at 2-20 Ichigaya-Honmuracho B1F, Shinjuku-ku.
Quick Desk
Mobile phone rentals. Open Monday to Friday 09:00-18:00. Located at Narita Airport.
Fusion GOL
Internet connections and hosting solutions.
PuPuRu International, Inc.
WiFi Rental and Cellphone Rental. Stay connected anytime anywhere! Address: Kyodo-Tsushin Bldg. 5F, 2-2-5 Toranomon, Minato-ku, Tokyo, 105-0001
Global Advanced Communications
Wifi, mifi, phone, mobile data rental service in Japan. Tokyo office is located at 3-9-3 Shinmachi, Setagaya-ku .
KDDI Corporation
Telecommunication services from landline to mobile and internet.
Kaga, Inc.
Supplies telecommunication services, lighting, electronic precision parts and network systems.  Address : 7-2, Taito 1-chome, Taito-ku, Tokyo 110-0016.
Air's
Mobile phone and internet model rental shop. Open daily 07:00-20:00. Located at Narita Airport Terminal 1.
Celestica Japan K.K.
Provides complete product development, delivery and support services to clients. Address : 8th Fl., Chuo Jidosha Bldg. 6-8, Yushima 1-chome, Bunkyo-ku, Tokyo 113-0034.
Mobal
Japanese phones and mobile wifi hotspot are available for rent and for sale. Open daily 08:00-21:00. Located at Narita Airport Terminal 1.
Genesys Japan Co.,Ltd.
Provides voice portal, a voice self-service software solution that provides access to web-based information and more. Address : 5th Fl., ThinkPark Tower 1-1, Ohsaki 2-chome, Shinagawa-ku, Tokyo 141-6005.
Trans fone
Cellular phone rental for dialing within Japan only. Open Monday to Friday 10:00-19:00. Located at Narita Airport.
GPlusMedia
Tokyo internet platforms for communications. Services include job boards, real estate listings, classifieds, social networking, events, forums, blogs and information portals. Minotomi Building 3F, 3-1-1 Shiba Koen, Minato-ku.
Softbank Global Rental
Mobile phone rental company in Tokyo. Shops can be found in all international airports including its own retail shops that can be found in the website. Open daily 10:00-18:00. Tokyo office is located at M21 Building, 2-2-5 Roppongi, Minato-ku.
CIENA Communications Co.,Ltd.
Provides cloud networking & network transformation solution, packet networking, converged packet optical, optical transport, s/w & applications, ciena specialist services & more.Address : 32nd Fl., St. Lukes Tower 8-1, A...

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