アメリカ領サモアのeSIM
アメリカ領サモアで使えるeSIMプラン。出発前に設定しておき、到着したらオンにするだけです。
掲載プラン数
0
ネットワーク
Bluesky Communications, ASTCA
通信方式
4G
現地通貨
USD
GBを使い切るとどうなるか
GBプランはデータ量が固定されています。使い切るとそのeSIMのデータ通信は止まり、自動で課金されることはありませんが、新しいQRコードなしで同じeSIMにチャージでき、残りはいつでもご注文ページで確認できます。
例:たっぷり残っている場合
4.1 GB 残り
使用済み 5.9 GB
合計 10 GB
41% 残り
例:残りわずかの場合
0.8 GB 残り
使用済み 9.2 GB
合計 10 GB
8% 残り
実際に必要なデータ量
A typical visit uses about 300MB to 1GB a day for coastal road navigation, messaging and photos. If you upload hiking or snorkelling video each night, budget around 2GB a day, and more again if a rental car full of people is sharing your hotspot.
到着後にすること
The gateway is Pago Pago International (PPG) at Tafuna on Tutuila, reached mainly from Honolulu, plus a short hop across to Apia in Samoa that also crosses the international date line. The Manuʻa Islands have small strips at Fitiuta on Taʻu and on Ofu. The other entry point is the harbour at Pago Pago, used by the occasional Manuʻa boat and by seasonal cruise calls.
電波が変わる場所
Coverage is strongest around Pago Pago harbour, Fagatogo and the Tafuna area near the airport, and remains usable along the east and west coast roads. It thins where the road climbs over the ridge in the middle of Tutuila, and there are dead spots on the national park trails around Mount Alava and above Vatia. The Manuʻa Islands, roughly a hundred kilometres east, have considerably fewer services. Download the map before you leave town.
よく質問される都市
- Pago Pago: The deep harbour and main port that anchors life on Tutuila.
- Fagatogo: Government offices and the market, right beside Pago Pago harbour.
- Tafuna: The airport and shopping area, where a lot of accommodation sits.
- Vatia: North coast village, the way into the national park and the Pola Island view.
- Taʻu: Largest of the Manuʻa Islands, reached by light aircraft or boat.
出発前にインストールしておきたいアプリ
- Google Maps with Tutuila saved offline before you drive around the island
- Facebook and Messenger, where local businesses and operators post updates
- The airline app for your route, such as Hawaiian Airlines for the Honolulu leg
- A weather app for rain bands and the tropical cyclone season
アメリカ領サモアの通信事業者
| 通信会社 | 通信方式 |
|---|---|
| Bluesky Communications | 4G |
| ASTCA | 4G |
これらはその国で運用されている通信会社です。プランによって接続できるのはその一部のみの場合があります。各プランに記載の通信会社をご確認ください。
よくある質問
Does my existing US plan automatically work in American Samoa?+
Not necessarily. Even though it is a US territory, many carriers treat American Samoa separately from the mainland in their plan terms: some include it, others bill it as roaming. The safe move is to ask your own provider before you travel whether this territory is inside your allowance, and if it is not, sort out how you will connect before departure rather than working it out at the airport.
Are entry requirements the same as for the mainland United States?+
Not entirely. American Samoa runs its own immigration separately from the rest of the United States, so the conditions for your passport can differ from the mainland rules. Check with the official authorities or an embassy before you fly, especially if the same trip continues on to Samoa or Hawaii, because each leg can carry its own set of requirements.
What should I sort out before hiking in the national park?+
Download the map around Mount Alava and the Vatia side before you start, because there are dead spots along the ridge and in the valleys. Tell your accommodation or someone you know which trail you are taking and when you expect to be back, carry enough water and battery since the humidity tires you faster than expected, and remember that much of the land belongs to villages — ask and follow the community's rules before walking in.
アメリカ領サモアのeSIMは何日目からカウントが始まりますか?+
多くのプランは、スマホが現地のネットワークに最初に接続した時点から開始するため、自宅で事前にインストールしておき、到着後にオンにすることができます。各プランページにそれぞれのルールを記載しています。
自国のSIMを取り外す必要はありますか?+
いいえ。eSIMは2回線目として機能するため、SMS認証などには自国の番号をそのまま使えます。自国回線のローミングデータをオフにし、eSIMをデータ回線に設定してください。
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関連情報
最終更新: 2026年11月5日









