アメリカにおけるAT&Tと旅行用eSIM

AT&Tの概要

AT&T shut down its 3G (UMTS) network on 22 February 2022.

AT&T's bands and technology

An eSIM can only use AT&T if your phone supports at least one band in this table. Before you fly, open your model's spec page on the maker's site and compare its LTE and 5G band lists.

AT&T's coverage map

AT&T publishes its own coverage map. Look up the street or district you will stay in rather than the country as a whole, because coverage in town and out of town differs a great deal. The map shows AT&T's own network; a roaming plan may not get every technology it shows.

Open AT&T's coverage map

Who licenses AT&T

Mobile networks in United States are licensed, and their spectrum assigned, by the Federal Communications Commission (FCC). The bands above are the ones it allocates. A problem with the local network's own service goes to the operator first; a problem with your eSIM plan comes to us.

当店で取り扱うプランのうちAT&Tを記載しているもの

From the supplier record behind each package, 42 of the 68 plans we currently sell for United States declare AT&T as a network the profile can reach, at 5G. The figure comes from the same catalogue that prices the plan pages, and it moves when the supplier revises the record.

AT&T beside the other networks in United States

プランが特定のネットワークを名指ししない理由

Nearly every travel eSIM is a roaming product: the profile picks a network by an order the supplier sets, not by the buyer. If AT&T is weak where you are, try selecting T-Mobile US manually in the network settings, and keep data roaming on for the eSIM profile.