FLAG FEA (Fibre Optic Link Around the Globe) submarine cable
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The invisible infrastructure of global connectivity
FLAG FEA (Fibre-Optic Link Around the Globe / Far East America) was the longest single cable system in the world when it went into operation in November 1997. It connects the United Kingdom with Japan via the Mediterranean, the Red Sea, the Indian Ocean and the South China Sea with 18 land stations in 14 countries. Today, the system is part of the FLAG network, which has been operated again under the FLAG brand by 3i Infrastructure since 2025. The FLAG network is one of the few fully privately operated global cable systems in the world. In addition to FEA, it comprises the FLAG Atlantic-1 (transatlantic), FALCON (Middle East/India) and FLAG North Asia Loop cables. Together they form a network of terrestrial and submarine fibers that connects all economic centers from London to Tokyo.
Route & connection
FLAG FEA connects Porthcurno (UK) via Estepona (Spain), Palermo (Italy), Alexandria and Suez (Egypt), Aqaba (Jordan), Jeddah (Saudi Arabia), Fujairah (UAE), Mumbai (India), Penang (Malaysia), Satun and Songkhla (Thailand), Hong Kong as well as Shanghai (China) and Geoje (South Korea) with the Japanese landing points Ninomiya and Miura. The route covers approximately 28,000 kilometers with fully duplicated terrestrial crossings in Egypt and Thailand.
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FLAG/FEA at a glance
What is the FLAG/FEA cable?
FLAG/FEA (Fibre-Optic Link Around the Globe / FLAG Europe Asia) is a submarine cable system of around 28,000 kilometers, connecting Porthcurno in the United Kingdom with Japan across the Mediterranean, the Red Sea, the Indian Ocean and the South China Sea. The system lands at 18 stations in 14 countries and has been in service since November 1997. FLAG/FEA is operated by the FLAG network, which has belonged to 3i Infrastructure since 2022 and switched its name back from Global Cloud Xchange to the FLAG brand in 2025. As one of the few fully privately operated global cable systems, FLAG/FEA combines with its sister cables FLAG Atlantic-1 and FALCON to form a continuous route from London to Tokyo.
FLAG/FEA fact sheet
| Attribute | Detail |
|---|---|
| Full name | FLAG/FEA (Fibre-Optic Link Around the Globe / FLAG Europe Asia) |
| Route | Porthcurno (UK) to Japan (Ninomiya, Miura) |
| Length | around 28,000 km, including around 1,000 km of terrestrial crossings |
| Landing points | 18 landing points in 14 countries, including UK, Spain, Italy, Egypt, Jordan, Saudi Arabia, UAE, India, Malaysia, Thailand, Hong Kong, China, South Korea, Japan |
| Technology | originally 10G SDH, upgraded several times to Ciena WaveLogic 6 Extreme (2025) |
| Terrestrial crossings | 2, in Egypt and Thailand, each fully duplicated, switching time under 50 ms |
| Entry into service | November 1997 |
| Manufacturer | AT&T Submarine Systems and KDD-Submarine Cable Systems (Fujitsu) |
| Operator | FLAG, formerly Global Cloud Xchange, owned by 3i Infrastructure since 2022 |
| Network affiliation | part of the FLAG network alongside FLAG Atlantic-1, FALCON, FLAG North Asia Loop |
| Distinguishing feature | one of the few fully privately operated global cable systems, continuous route from the UK to Japan |
FLAG/FEA submarine cable

Technology & capacity
FLAG FEA was supplied by AT&T Submarine Systems and KDD-Submarine Cable Systems (Fujitsu) and was a technological pioneer in the large-scale deployment of EDFA amplifiers.
- EDFA pioneer: First large-scale use of erbium-doped fiber amplifiers at 1480 nm pump wavelength
- Multiple upgrades: From original 10G SDH to 100G coherent (Ciena 2012) and WaveLogic 6 Extreme (2025)
- Two duplicated terrestrial protection systems: Full redundancy in Egypt and Thailand with less than 50 ms switching time
- Global private network: Combined with FLAG Atlantic-1, FALCON and FNAL to form a fully self-operated ring network
Provider Overview
SAVECALL as access to FLAG/FEA
The FLAG network is one of the few fully privately operated global cable systems in the world. This is precisely what creates particular flexibility in capacity procurement. No consortium with twenty members, no diverging interests, no unnecessary overhead. SAVECALL has direct partnerships with 3i Infrastructure and FLAG and sources capacity on FEA, FLAG Atlantic-1 and FALCON without a reseller chain. We know the strengths of the system: the duplicated terrestrial crossings, the global reach, the direct connection to key markets from London to Tokyo. We negotiate structures that fit your international network needs. For companies with a Euro-Asian presence, FLAG/FEA is a strategically valuable option.
The result for our customers:
- Direct capacity access to FLAG/FEA without reseller chains
- Negotiation of IRU structures and leased capacity models
- Transparent price benchmarking against all available alternatives
- True route diversity through independent redundancy planning
- Clear SLAs and ongoing capacity management

FLAG/FEA compared
On the Asia-Europe route via the Middle East, FLAG/FEA competes with several other modern cable systems. The comparison shows where its continuous route to Japan stands out.
| Criterion | FLAG/FEA | AAE-1 | PEACE Cable |
|---|---|---|---|
| Route | UK to Japan via the Mediterranean, Red Sea, Indian Ocean, South China Sea | Hong Kong/Singapore to Marseille, Athens, Milan | Singapore to Marseille, with a branch to Kenya |
| Design capacity | upgraded several times, currently Ciena WaveLogic 6 Extreme | originally 40 Tbit/s, over 100 Tbit/s after the 2022 upgrade | up to 192 Tbit/s on the Mediterranean segment |
| Length | around 28,000 km | around 25,000 km | around 21,500 km |
| In service since | 1997 | 2017 | 2022, full route since 2024 |
| Strength | the only fully private system with a continuous route from the UK to Japan, duplicated land crossings in Egypt and Thailand | established backbone since 2017, upgraded several times | highest segment capacity in the Mediterranean, additional Kenya branch |
Vendor-neutral assessment: FLAG/FEA, AAE-1 and PEACE Cable all connect Asia to Europe via the Middle East, but FLAG/FEA is the only one of the three that runs all the way to Japan and South Korea. As an independent capacity broker, SAVECALL assesses all three systems neutrally and selects the right solution based on location, redundancy needs and budget.
Related submarine cables and cluster pages
- Established consortium backbone on a similar route: AAE-1
- Highest segment capacity in the Mediterranean: PEACE Cable
- All capacities at a glance: Submarine cable hub
- WAN connections and redundancy concepts: WAN cluster
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Frequently asked questions about the FLAG/FEA cable
FLAG/FEA (Fibre-Optic Link Around the Globe) connects Porthcurno in the United Kingdom with Japan, crossing the Mediterranean, the Red Sea, the Indian Ocean and the South China Sea. Along the roughly 28,000-kilometer route there are 18 landing points in 14 countries, including Spain, Italy, Egypt, Jordan, Saudi Arabia, the United Arab Emirates, India, Malaysia, Thailand, Hong Kong, China, South Korea and Japan.
FLAG/FEA originally entered service in 1997 using 10G SDH technology and has since been upgraded several times, most recently to Ciena WaveLogic 6 Extreme. The system was one of the pioneers in the large-scale use of erbium-doped fiber amplifiers and has two fully duplicated terrestrial crossings in Egypt and Thailand, with a switchover time of less than 50 milliseconds in the event of a fault.
FLAG/FEA belongs to the FLAG network, operated by 3i Infrastructure. 3i Infrastructure acquired the previous operator, Global Cloud Xchange (GCX), in 2022 and rebranded the company back to FLAG in 2025. Alongside FEA, the network includes the FLAG Atlantic-1, FALCON and FLAG North Asia Loop cables, making it one of the few fully privately operated global cable systems.
All three systems connect Asia to Europe via the Middle East, but FLAG/FEA is the only one that extends all the way to Japan and South Korea. AAE-1 has been established since 2017 and upgraded several times. PEACE Cable offers the highest segment capacity in the Mediterranean. FLAG/FEA also stands out for its fully private ownership structure without a consortium. The right choice depends on location, budget and redundancy strategy.
FLAG/FEA crosses land at two points, in Egypt between the Mediterranean and the Red Sea, and in Thailand. Both crossings are duplicated on completely different routes. If one route fails, the system automatically switches to the alternative route in under 50 milliseconds, without any noticeable outage.
SAVECALL has direct partnerships with 3i Infrastructure and FLAG and sources capacity on FEA, FLAG Atlantic-1 and FALCON without a reseller chain. We know the strengths of the system, the duplicated terrestrial crossings and the direct connection to key markets from London to Tokyo. Book a free consultation to discuss your requirements and the right capacity on FLAG/FEA.



