- Head Office
- Marketing Headquarters
- Engineering Headquarters
- Tokyo Main Office
- Kanto
- Hokkaido
- Tohoku
- Shinetsu
- Western Japan Business Promotion Headquarters
- Tokai
- Hokuriku
- Kansai
- Chugoku
- Shikoku
- Kyusyu
With a nationwide network of service bases with 180 directly managed offices and more than 1,200 subcontractors, we take advantage of this network to the maximum extent possible to provide prompt and attentive services.
〈 Each of the areas throughout the nation collaborates to cover the diversity of buildings 〉
- NTT buildings：7,300 locations
- Office buildings：1,000 locations
- Housing complex：2,000 locations
- Other：60 locations（hospitals, hotels, airports, public facilities）
Contact Us
Head Office
| Location | TEL | |
|---|---|---|
| Head Office |
Meccs Building, 3-6-3 Irifune, Chuo-ku, Tokyo 104-0042 |
+81-3-5541-5511 |
Marketing Headquarters
| Location | TEL | |
|---|---|---|
| Marketing Headquarters |
Oak Irifune Building, 3-6-14 Irifune, Chuo-ku, Tokyo 104-0042 |
+81-3-5541-5541 |
Engineering Headquarters
| Location | TEL | |
|---|---|---|
| Engineering Headquarters |
Meccs Building, 3-6-3 Irifune, Chuo-ku, Tokyo 104-0042 |
+81-3-5541-5634 |
Tokyo Main Office
| Location | TEL | |
|---|---|---|
| Tokyo Main Office |
Meccs Building, 3-6-3 Irifune, Chuo-ku, Tokyo 104-0042 |
+81-3-5541-5621 |
Kanto
| Location | TEL | |
|---|---|---|
| Northern Kanto Branch |
Nakamachi Kawanabe Building 7F, 2-60 Nakamachi, Omiya-ku, Saitama-City, Saitama 330-0845 |
+81-48-649-6631 |
| Tochigi Office |
Otsuka Shokai Utsunomiya Building 7F, 4-1-11 Higashishukugo, Utsunomiya-City, Tochigi 321-0953 |
+81-28-635-2850 |
|---|---|---|
| Gunma Office |
Room B, Marusan Himono Building 3F, 162 Himonocho, Takasaki-City, Gunma 370-0839 |
+81-27-326-5151 |
| Chiba Office |
Makuhari Techno Garden Building D 4F, 1-3 Nakase, Mihama-ku, Chiba-City, Chiba 261-8501 |
+81-43-306-6091 |
| Ibaraki Office |
NTT Omachi Annex 2F, 3-3-5 Omachi, Mito-City, Ibaraki 310-0062 |
+81-29-224-3993 |
| Tsukuba Office |
Nissou Building 2F, 916-4 Farto, Tsukuba-City, Ibaraki 300-2633 |
+81-29-897-3500 |
| Location | TEL | |
|---|---|---|
| Southern Kanto Branch |
TIMECROSS YOKOHAMA 8F, 3-30-7 Honmachi, Naka-ku, Yokohama-City, Kanagawa 231-0005 |
Marketing Division +81-45-212-2451 |
| Building Management Division （Direct number） +81-45-225-9257 |
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| Engineering Service Division （Direct number） +81-45-225-9258 |
||
| Safety and Quality Assurance Division （Direct number） +81-45-225-9259 |
| R&D Musashino Office |
Inside the NTT Musashino Research and Development Center, 3-9-11 Midoricho, Musashino-City, Tokyo 180-0012 |
+81-422-53-0104 |
|---|---|---|
| R&D Yokosuka Office |
Inside the NTT Yokosuka Research and Development Center, 1-1 Hikarinooka, Yokosuka-City,
Kanagawa 239-0847 |
+81-46-859-2204 |
| R&D Atsugi Office |
Inside the NTT Atsugi Research and Development Center, 3-1 Morinosato Wakamiya, Atsugi-City,
Kanagawa 243-0198 |
+81-46-240-4209 |
| Tama Office |
YAZAWA QUATRE Building 2F. 3-1-4 Nishikicho, Tachikawa-City, Tokyo 190-0022 |
+81-42-525-7799 |
Hokkaido
| Location | TEL | |
|---|---|---|
| Hokkaido Branch |
Telwell Sapporo Building, 1 Kita 4-jo Nishi 16-chome, Chuo-ku, Sapporo-City, Hokkaido 060-0004 |
+81-11-643-9001 |
| Kushiro Office |
Inside the NTT Kushiro Kurogane Building, 9-2 Kurogane-cho, Kushiro-City, Hokkaido 085-0018 |
+81-154-32-3601 |
|---|---|---|
| Asahikawa Office |
Inside the NTT Asahikawa Toko Building, 413-83 Toko 2-jo 3-chome, Asahikawa-City, Hokkaido 078-8342 |
+81-166-33-9001 |
| Hakodate Office |
Inside the NTT Hakodate Shinonome Building, 14-8 Shinonome-cho, Hakodate-City, Hokkaido 040-0036 |
+81-138-27-1332 |
| Kitami Office |
Inside the NTT Kitami Network Center Building,2-2 Chuocho, Kitami-City, Hokkaido 090-0034 |
+81-157-22-3838 |
Tohoku
| Location | TEL | |
|---|---|---|
| Tohoku Branch |
Telwell Sendai Building, 4-2-8 Tsutsujigaoka, Miyagino-ku, Sendai-City, Miyagi 983-0852 |
+81-22-297-5880 |
| Iwate Office |
NTT East Iwate Branch 1 Building 1F, 1-6-5 Chuo-dori, Morioka-City, Iwate 020-0021 |
+81-19-624-1135 |
|---|---|---|
| Fukushima Office |
NTT East Fukushima Branch Yamashita Building Annex, 5-10 Yamashita-cho, Fukushima-City,
Fukushima 960-8115 |
+81-24-531-6350 |
| Akita Office |
4F Kahoku Building, 3-2-44 Nakadori, Akita-City, Akita 010-0001 |
+81-18-835-4492 |
| Yamagata Office |
NTT Yakushi Building 3rd Building 1F, 2-18-1 Yakushicho, Yamagata-City, Yamagata 990-8519 |
+81-23-641-0425 |
| Aomori Office |
Inside the NTT East Aomori Branch Tsutsumi Building, 1-7-19 Tsutsumi-cho, Aomori-City,
Aomori 030-0812 |
+81-17-723-5056 |
Shinetsu
| Location | TEL | |
|---|---|---|
| Shinetsu Branch |
161-1 Nanase Nakamachi, Nagano-City, Nagano 380-0904 |
+81-26-229-5770 |
| Niigata Office |
NTT Sekiyamegumicho Building 2F,11-55 Sekiyamegumicho,Chuo-ku, Niigata 951-8143 |
+81-25-267-2731 |
|---|
Western Japan Business Promotion Headquarters
| Location | TEL | |
|---|---|---|
| Western Japan Business Promotion Headquarters |
Osaka Stock Exchange Building 7F, 1-8-16 Kitahama, Chuo-ku, Osaka-City, Osaka 541-0041 |
+81-6-4706-5622 |
Tokai
| Location | TEL | |
|---|---|---|
| Tokai Branch |
Nagoya Heiwa Building 3F, 3-8-8 Sakae, Naka-ku, Nagoya-City Aichi 460-0008 |
+81-52-269-1515 |
| Shizuoka Office |
Urbannet Shizuoka Building 3F, 4-1 Miyukicho, Aoi-ku, Shizuoka-City,Shizuoka 420-0857 |
+81-54-252-5458 |
|---|---|---|
| Mie Office |
Hyakugo Meiji Yasuda Life Building 5F, 375 Hadokocho, Tsu-City,Mie 514-0009 |
+81-59-213-1171 |
Hokuriku
| Location | TEL | |
|---|---|---|
| Hokuriku Branch |
2-6-27 Nishihonmachi, Kanazawa City Station, Kanazawa-City, Ishikawa 920-0025 |
+81-76-263-7631 |
| Fukui Office |
Inside the NTT Hinode Building, 2-12-5 Hinode, Fukui-City,Fukui 910-0859 |
+81-776-28-1060 |
|---|---|---|
| Toyama Office |
Inside the NTT Higashida Chikyu Building, 1-1-30 Higashida Chikyu-cho, Toyama-City, Toyama 930-0017 |
+81-76-442-8447 |
Kansai
| Location | TEL | |
|---|---|---|
| Kansai Branch |
Osaka Stock Exchange Building 7F, 1-8-16 Kitahama, Chuo-ku, Osaka-City, Osaka 541-0041 |
+81-6-4706-5621 |
| Keiji Office |
NTT Comware Kyoto Nishi-Kujo Building 2F, 19-1 Nishi-Kujo Sugata-cho, Minami-ku, Kyoto-City,
Kyoto 601-8445 |
+81-75-606-2058 |
|---|---|---|
| Hyogo Office |
Kobe Former Settlement Heiwa Building 6F, 49 Harimacho, Chuo-ku, Kobe-City, Hyogo 650-0036 |
+81-78-391-2666 |
| Nara Office |
Inside the NTT West Daianji Annex, 5-11-1 Daianji, Nara-City, Nara 630-8133 |
+81-742-61-2050 |
| Wakayama Office |
Inside the NTT West Japan Kyobashi Annex, 54 Juichiban-cho, Wakayama-City, Wakayama 640-8159 |
+81-73-421-7477 |
| Osaka Dojima Office |
Inside the NTT Data Dojima Building, 3-1-21 Dojima, Kita-ku, Osaka-City, Osaka 530-0003 |
+81-6-6452-9655 |
Chugoku
| Location | TEL | |
|---|---|---|
| Chugoku Branch |
NTT Credo Hakushima Building, 14-15 Higashihakushimacho, Naka-ku, Hiroshima-City,
Hiroshima 730-0004 |
+81-82-223-3100 |
| Okayama Office |
NTT Credo Okayama Building, 1-8-45 Nakayamashita, Kita-ku, Okayama-City, Okayama 700-0821 |
+81-86-232-0672 |
|---|---|---|
| Yamaguchi Office |
Inside the NPY Building, 1-10 Kumanocho, Yamaguchi-City, Yamaguchi 753-0077 |
+81-83-921-3663 |
| Sanin Office |
NTT Shimane Building 2 4F, 102 Higashi Asahicho, Matsue-City, Shimane 690-8520 |
+81-852-27-7130 |
Shikoku
| Location | TEL | |
|---|---|---|
| Shikoku Branch |
Matsuyama Ichibancho Building 4F, 1-15-2 Ichibancho, Matsuyama-City, Ehime 790-0001 |
+81-89-946-4411 |
| Kagawa Office |
NTT Enza Building, 200-1 Enza-cho, Takamatsu-City Kagawa 761-8044 |
+81-87-813-7303 |
|---|---|---|
| Tokushima Office |
Inside the NTT Nakasu Building, 2-25 Nakasucho, Tokushima-City, Tokushima 770-0856 |
+81-88-657-6611 |
| Kochi Office |
Inside the NTT Fudaba Building, 2-24 Fudaba Kochi-City, Kochi 780-0085 |
+81-88-884-1380 |
Kyusyu
| Location | TEL | |
|---|---|---|
| Kyusyu Branch |
Urbannet Hakata Building 5F, 2-5-1 Hakataeki Higashi, Hakata-ku, Fukuoka-City, Fukuoka 812-0013 |
+81-92-451-5821 |
| Fukuoka Airport Office |
Power supply in the office building 2F, Fukuoka Airport, 348 Kamiusui Yanai, Hakata-ku, Fukuoka City Fukuoka 812-0005 |
+81-92-402-1192 |
|---|---|---|
| Kitakyushu Office |
NZ Building 2F, 4-1-24 Kyomachi, Kokurakita-ku, Kitakyushu-City, Fukuoka 802-0002 |
+81-93-521-5816 |
| Nagasaki Office |
NTT Dejima Building Annex 3F, 11-13 Dejima-cho, Nagasaki-City, Nagasaki 850-0862 |
+81-95-821-5251 |
| Kumamoto Office |
SDK Kumamoto Building 4F, 2-1-42 Tsuboi, Chuo-ku, Kumamoto-City, Kumamoto 860-0863 |
+81-96-223-5714 |
| Oita Office |
NTT Com Oita Harashin Building 1F, 5-1 Harashinmachi, Oita-City, Oita 870-0912 |
+81-97-551-8844 |
| Miyazaki Office |
NTT West Japan Hiroshima Building (East Building) 5F, 1-5-3 Hiroshima, Miyazaki-City,
Miyazaki 880-0806 |
+81-985-22-1734 |
| Kagoshima Office |
NTT Ginza Building Telegraph Building Middle 2F, 4-26 Matsubaracho, Kagoshima-City,
Kagoshima 892-0833 |
+81-99-210-7772 |
| Okinawa Office |
NTT Com Jitchaku Building Annex West Building 2F, 4-19-3 Jitchaku, Urasoe-City, Okinawa 901-2122 |
+81-98-873-3005 |
