Ota (太田) is a city in Gunma.
Ota is located on the Tobu's Isesaki Line.
It is approximately 80 kilometers from Tokyo and 30 kilometers from Maebashi, the capital of Gunma Prefecture.
Direct Ryomo limited express trains run from Asakusa station in Tokyo. Services depart every 30 minutes during the mornings and evenings, and every hour during middays. The trip to Ota takes 70 minutes at a cost of ¥2030. Local Tobu trains, requiring a few transfers, will get you to Ota in about 2 1/4 hours for only ¥1030.
From Narita airport, Ota is most easily accessed using the Maple Bus Liner leaving almost every hour. The total trip lasts roughly 3 hours at a cost of 3200 yen.
Gunma is known for having the highest ratio of registered vehicles per population among Japan's prefectures and that is especially true of Ota, the home of Subaru Motors. There are few stations and buses tend to only run on main thoroughfares. Renting a vehicle is the most logical option for those staying outside of central Ota. Toyota Rent-a-car has two locations in the vicinity of the station and various sizes of vehicles are available for rent.
Ota has a special product called Ota-Yakisoba.
The south side of Ota Station features various drinking establishments, as well as the largest hostess bar district in Northern Kanto. While for all intents and purposes, a great many of the hostess bars are "Japanese Only", some establishments (particularly those staffed by Filipinas) do occasionally welcome non-Japanese. You can expect to spend roughly 4000 to 5000 per hour including drinks at most of the lower priced clubs. That being said, many such establishments may pad the bill and precaution is necessary whenever frequenting these locations.
You would most likely find reliable coverage of the 2G/3G mobile networks in most locations in Ota, but the 4G network might be unreliable. Signal strength might diminish further away from the city center, and you might occasionally experience a network outage for all or some of the mobile phone service providers in the remote areas of the city. Different networks tend to be more stable and reliable in different locations of the city at different times.
MTN, 9Mobile, Airtel (Zain) and GLO are all available service providers. So if you are planning a visit to Ota, like you would do for many other places in the country, you should probably consider having multiple SIM cards, preferably for all the mobile service providers, since you can't tell which will be more stable and reliable at a time in your location during your visit. And if you will risk not having any of them, you might be better off not risking the MTN network, because, from indications, it seem to perform well than the others, though its rates may be high and its offers and services might be stringent, but you are less likely to be concerned of erratic voice and data connection compared to others.
Airtel is another service provider which is fairly satisfactory for all you might need to connect to the world, including rates and network reliability. Of course, Glo (or Globacom) boasts of fast network speed for internet browsing activities, only that you might not be able to enjoy the privilege in some locations. And 9Mobile (formerly Etisalat) usually also performs well in internet browsing speed too but with locational limitations as well, plus data rate is fairly higher.
Primary administrative division