ドミニカ共和国の通信エリア

ドミニカ共和国 の数値が意味すること

重要な数値は2つあり、どの会社も引用するのはそのうち1つだけです。一般的な速度は43 Mbps。調子のいいときがどれくらいかを示す数字です。

読む価値があるのは10パーセンタイル、10 Mbpsのほうです。駅の上の基地局が混み合い、周りの全員が同じ電波につながっている、その日の下位1割のときの速度です。中央値が高くて下限が低い国は、本当に必要になるその瞬間まではみごとに動く国だということです。

ビデオ通話やテザリングが欠かせない旅なら、一般的な速度ではなく混雑時の数値を基準に計画してください。

ドミニカ共和国で回線が混んだときに起きること

混雑は故障ではなく、火曜の夜です。問題は、そのときeSIMに何ができるかで、たいていの旅行用eSIMの答えは「何もできない」です。国ごとに卸契約が1つ、ネットワークが1つ、路上に立ったまま他社のeSIMをもう1枚買う以外に逃げ道がありません。

ここではOrbisloの通信はClaro、Alticeを通ります。いま乗っているネットワークが劣化したら、旅行の途中でも、お客様が頼まなくても別の回線へ移します。そのときに邪魔をするのではなく、あとからお知らせします。

ドミニカ共和国の携帯キャリア

• Claro: Claro, the trading name of Compañía Dominicana de Teléfonos, had 7,010,974 of the country's 11,003,354 active mobile lines at the end of 2025, a 63.7 percent share of the market.
• Altice: Altice Dominicana had 3,684,072 active mobile lines at the end of 2025, a 33.5 percent share, making it the second largest mobile network in the Dominican Republic.
• Viva: Viva, run by Trilogy Dominicana, had 308,308 active mobile lines at the end of 2025, a 2.8 percent share, and its mobile internet subscriptions fell by about 20 percent during the year.
• Viettel: In August 2026 the regulator awarded Viettel 240 MHz of spectrum on a 20 year concession: 40 MHz at 700 MHz, 100 MHz at 2.3 GHz and 100 MHz at 3.6 GHz. Viettel must set up a Dominican company to hold the licence.

ドミニカ共和国の5G

• In the 2021 5G auction Claro and Altice each won 70 MHz in the 3.5 GHz range. The regulator then rearranged the band so each holds 100 contiguous MHz: Claro from 3,300 to 3,400 MHz and Altice from 3,400 to 3,500 MHz.
• The 700 MHz blocks offered in the same 2021 auction drew no bids and were declared void, while Onemax and SATEL were moved within the 3.5 GHz band and 3,540 to 3,560 MHz was left free for a later award.
• Claro launched commercial 5G on 1 December 2021. Altice followed on 22 February 2022 in Santo Domingo's Colonial City and Santiago de los Caballeros, both on the 3.5 GHz band.
• In the 2026 spectrum auction Claro added 20 MHz in the 700 MHz band for the 15 years left on its concession, while the 30 MHz of AWS spectrum on offer drew no bids and was declared void.

ドミニカ共和国のネットワークについて

• Apple's carrier list shows both Claro and Altice supporting 5G, eSIM and VoLTE on iPhone in the Dominican Republic, with Wi-Fi Calling listed for Claro only. Viva does not appear on the list.
• Under the national roaming regulation, Resolution 070-2023, a provider without coverage in an area can carry its customers on a rival's network there at no extra charge to the user. The Constitutional Court upheld the rule in February 2025.
• In February 2025 a major fault left Viva customers without mobile data or internet for five consecutive days, and the regulator said it would require the company to compensate affected users.
• The 20 year concession contracts signed with the main providers include minimum expansion plans that require coverage to grow in remote areas with low network penetration.
• Active mobile internet accounts in the Dominican Republic rose from 7.2 million in 2020 to 8.9 million at the end of 2022, an increase of 24 percent.
• International submarine cables land at Punta Cana, Puerto Plata, Santo Domingo, Haina and Cacique, including ARCOS and SAm-1 from 2001, AMX-1 from 2014, the East West cable from 2011 and Firmina from 2025.