セントビンセント及びグレナディーン諸島の通信エリア

セントビンセント及びグレナディーン諸島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Flow、Digicel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。

セントビンセント及びグレナディーン諸島の携帯キャリア

• Digicel: Digicel SVG Limited holds a public mobile telecommunications licence effective 12 September 2017, along with internet and subscriber television licences.
• Flow (Cable & Wireless): Cable and Wireless Caribbean Cellular (St. Vincent and the Grenadines) Limited holds the public mobile telecommunications licence, effective 9 October 2016, while Cable and Wireless (West Indies) Limited holds an internet networks licence from the same date.
• Digicel and Flow, sites: On mainland St. Vincent Digicel operates 57 cell sites and Flow 49, all delivering 4G LTE. In the Grenadines Digicel runs 13 more sites and Flow 10.
• Digicel and Flow, technology: The UN Emergency Telecommunications Cluster lists both Digicel and Flow as running 2G, 3G and 4G, with 92 percent LTE coverage each. Digicel has signed the GSMA Humanitarian Connectivity Charter; Flow has not.

セントビンセント及びグレナディーン諸島の5G

• The regulator's 2025 annual report lists expanding spectrum availability and refarming as an opportunity to allocate frequencies more efficiently for 5G deployment, IoT services and other emerging uses.

セントビンセント及びグレナディーン諸島のネットワークについて

• In 2025 Flow was authorised to build three new sites, at Holiday Inn Express/Diamond, Calliaqua and New Montrose, while no new site was authorised in the Grenadines for either operator. The regulator says coverage gaps remain in several areas.
• The regulator puts mobile phone penetration at 94 percent, 82 percent of it smartphones. Ninety percent of mobile customers are prepaid and only 66 percent of those keep a regular data plan, so about a third of the population has no data access on a given day.
• Two companies hold submarine cable licences: Southern Caribbean Fiber, effective 29 December 2006, and Digicel Grenada Cable Company, effective 31 May 2019. Starlink SVG Ltd was licensed as an internet service provider from 1 April 2025.
• The CARCIP subsea fibre connects the cable landing stations at Arnos Vale on St. Vincent and Point Salines on Grenada. The regulator plans to use it to link the Arnos Vale internet exchange point to cache servers at Grenada's exchange for faster service.
• Hurricane Beryl made landfall on 1 July 2024. On Canouan it completely destroyed electricity and telecommunications, which were still unavailable on 9 July, and Union Island still had no power and only limited telecommunications that day.
• After Beryl, responders installed a satellite based Starlink connection in Kingstown to improve internet connectivity for the humanitarian response.
• Maritime distress radio coverage for the southern Grenadines, installed at Jerome on Union Island in November 2023 because the single Mount St. Andrew site reached only the mainland and northern Grenadines, was badly damaged by Hurricane Beryl in July 2024.