NTT DOCOMO and travel eSIM in Japan

NTT DOCOMO in brief

NTT DOCOMO is a mobile network operator in Japan, and one of the networks a travel eSIM may reach through roaming. From the information we track, it runs 4G and 5G.

The plans on our shelf that name NTT DOCOMO

From the supplier record behind each package, 53 of the 100 plans we currently sell for Japan declare NTT DOCOMO as a network the profile can reach, at 4G and 5G. The figure comes from the same catalogue that prices the plan pages, not from marketing copy, and it moves when the supplier revises the record.

Why plans do not name a fixed network

Nearly every travel eSIM is a roaming product. The supplier holds agreements with one or more networks in the destination, and your profile picks between them by a priority order set inside the profile, not by the buyer. Two travellers on the same plan can end up on different networks in the same city.

The other networks in Japan

Alongside NTT DOCOMO, the market also has KDDI (au), Rakuten Mobile, SoftBank, any of which your plan may use depending on the supplier.

• If signal is weak in one spot, try manually selecting another network your plan supports
• This market has 5G in parts of it, mostly in larger cities
• Leave data roaming on for the eSIM profile: roaming is how the travel plan works, not an extra charge