EXA Express

EXA Express
Owners: EXA Infrastructure
Landing points 1. Halifax County, Nova Scotia, Canada 2. Brean, Somerset, UK 3. County Cork, Ireland
Total length	Ca.4,600km
Design capacity	53 Tbps
Technology	Fiber optics

EXA Express (formerly Hibernia Express) is a submarine communications cable system linking Canada, Ireland, and the United Kingdom. ^[1] EXA Express is now owned by telecommunications provider EXA Infrastructure after their 2021 acquisition of the infrastructure assets of GTT Communications. ^[2] With a latency of 58.95ms, the cable currently provides the lowest latency fiber optic route between the NY4 data center in Secaucus, New Jersey and London. ^[3]

The cable was considered operational on September 15, 2015. ^[4] EXA Express spans 4,600 km between its landing stations in Halifax County, Nova Scotia, Canada; Brean, Somerset, UK; and County Cork, Ireland. The cable is constructed with six fiber pairs, with a design capacity for 53 Tbit/s. ^[3]

During the planning phases of the cable, Hibernia Networks intended to use Huawei as the contractor for construction. ^[5] However, due to security concerns from the potential customers, Huawei was not used and the construction contract went to TE Subcom (owned by TE Connectivity). ^[1]

References

1. "Hibernia Express transatlantic submarine cable network ready for service". Lightwave. Retrieved 25 April 2018.
2. "EXA Infrastructure sets sights on growth after acquisition creates Europe's most expansive digital infrastructure platform". EXA Infrastructure. Retrieved 16 January 2025.
3. "Hibernia Express Transatlantic Cable Route Connects New York to London in under 58.95 Milliseconds". Business Wire. Retrieved 25 April 2018.
4. "Hibernia Express - Submarine Cable Networks". Submarine Cable Networks. Retrieved 25 April 2018.
5. "Huawei Marine to build Hibernia Altantic's (sic) Project Express". Lightwave. Retrieved 25 April 2018.