ニューカレドニアの通信エリア

ニューカレドニア 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44 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。

ニューカレドニア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Mobilis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。

ニューカレドニアの携帯キャリア

• OPT-NC, legal monopoly: New Caledonia has a single mobile network. The public office OPT-NC holds the legal monopoly on public telecommunications services, including mobile and fixed telephony, as the territory's competition authority set out in its March 2024 opinion. Every local SIM therefore runs on the same infrastructure.
• OPT-NC, status: OPT-NC has been a public industrial and commercial establishment since 1958. Its organisation is set by a deliberation of the Congress of New Caledonia dated 23 October 2000, and its telecommunications missions are laid down in the territory's posts and telecommunications code.
• Helia by OPT-NC: Since 15 July 2025 OPT-NC has traded as Helia. The new operator brand brought all of its mobile, internet, fixed line and business services together under a single identity.
• OPT-NC, customers: At the end of 2025 OPT-NC counted 250,443 mobile customers, down from 255,752 a year earlier. Of these, 131,628 were on monthly subscriptions and 118,815 on Liberté prepaid offers.
• Internet providers and satellite: Fixed internet access is the only telecom market open to rivals, through providers that rent OPT-NC's infrastructure. A 2024 draft law to let satellite operators sell internet access explicitly left mobile and fixed telephony inside the OPT-NC monopoly.

ニューカレドニアの旧世代ネットワーク

• The 2G network was retired in stages: no new 2G sites were built from 2019, the first areas were switched off in 2022, and 2G ended for good on 31 December 2025. Phones that list only GSM, along with older alarms and sensors, can no longer connect.
• The operator's annual report confirms that 2G was switched off definitively on 31 December 2025, and says the move lets it concentrate investment on more efficient mobile technologies.
• Voice over 4G, VoLTE, was scheduled to go live in 2026. The operator also planned for every mobile site to carry 4G by the end of 2025, with extra capacity on more than half of them.

ニューカレドニアの5G

• OPT-NC ran a 5G pilot at the Station N site in Nouville, Nouméa, during 2024, testing very high speed connectivity and professional uses before any public launch.
• In May 2025 the operator said New Caledonia had chosen to strengthen its 4G+ network rather than rush into 5G, with 4G already reaching 99 percent of the population.
• The 2026 plan set the start of 5G deployment for March 2026, with 20 5G sites in places of heavy footfall and movement, alongside about 30 new sites to reach areas that still have no coverage.
• The operator ties its 5G preparation to the heavy concentration of mobile use in the Southern Province, home of Nouméa, while stating that remote parts of the territory must keep equal access to digital services.

ニューカレドニアのネットワークについて

• At the end of June 2026 the mobile network had 566 sites in service, 563 of them with 4G and 171 with 4G+. New relays that quarter covered Tontouta village and the RT1 road, Boulari in Mont Dore, Poum, Ouégoa and Pouembout.
• In 2025 the operator opened 31 new mobile sites across 20 communes and added 33 4G+ extensions, taking the network from 530 sites at the start of the year to 557 at the end.
• Local 3G runs on the 900 and 2100 MHz bands and 4G on 800 and 1800 MHz, so a visiting phone needs at least one of these bands to register on the network.
• On the Côte Oubliée south of Thio, steep terrain and dense vegetation block signals from the main island, so tribes between Port Bouquet and Grand Borindi depend on a relay on Tupéti islet. There is no fibre or copper there, and 4G was still being prepared in 2026.
• Gondwana-1, laid in 2008, runs 2,152 km from Nouméa to Sydney. While it was the only international cable, the operator warned that a fault would cut the territory off from the global internet for days or even weeks.
• Gondwana-2 added a second international route in 2022, 1,515 km from Nouméa to Suva in Fiji. Domestic cables link the islands: PICOT-1 joins Poindimié to Ouvéa and Lifou, and PICOT-2 connects Mont Dore, Yaté, Maré, Lifou and the Isle of Pines in loops that help during storms.
• Because power cuts have become more frequent and longer, the operator is fitting its most strategic mobile sites with high capacity batteries giving 2 to more than 6 hours of backup, with about fifty sites due by the end of 2026.
• The riots that began on 13 May 2024 damaged 46 OPT-NC properties at an estimated cost above 585 million CFP francs. Several agencies were closed for a time, cutting access to telecom counters as well as postal and banking services.