|Headquarters||McLean, Virginia, United States|
|Products||Telecommunications, submarine communications cable|
Hibernia Networks, alternately known as Hibernia Atlantic, was a privately held, US-owned provider of telecommunication services. It operated global network routes on self-healing rings in North America, Europe and Asia including submarine communications cable systems in the North Atlantic Ocean which connected Canada, the United States, the Republic of Ireland, the United Kingdom and mainland Europe. Hibernia managed cable landing stations in Dublin, Republic of Ireland; Coleraine, Northern Ireland; Southport, England; Halifax, Canada; Lynn, USA.
The company is owned and operated by GTT Communications, Inc.. It was previously a subsidiary of Columbia Ventures Corporation (CVC) and owned by both CVC and Constellation Ventures Partners.
Hibernia Networks' transatlantic cable system was originally built by Tyco Submarine Systems for 360networks (360atlantic) in 2000 for $962M and placed in receivership in 2001, purchased in 2003 and began carrying traffic in 2005.
In December 2009, Hibernia Networks acquired managed network services company MediaXstream.
In August 2012, the company acquired the Media Connect assets from TeliaSonera International Carrier (TSIC), located in Europe and the US, and combined with the other media assets rebranded as Hibernia Networks. This made Hibernia Networks one of the largest DTM Video Transport Networks in the world. The company operated in European and North American markets and transported content across its optical switching and dynamic transport mode network.
Hibernia Networks provided financial customers and the trading community low-latency routes to financial exchanges and data centers. On September 30, 2010, Hibernia announced plans for a new transatlantic cable, Project Express, to be built from the NY metro area to Slough west of London, with less than 60 ms of delay. This cable system targeted traders, and was planned to be the highest bit rate (8.8 terabits/second), lowest latency (59 ms) cable built across the Atlantic.
In 2011, Hibernia announced its expansion into the Pacific Rim with network connectivity into Tokyo, Singapore and Hong Kong. 
In 2013, the company acquired Atrato IP Networks, a provider of IP and transit services.
|360atlantic (Hibernia Atlantic)|
GTT Communications, Inc..
|Design capacity||10.16 Tbit/s|
|Technology||Fiber Optic DWDM|
The network is manned by dual network operations centers (NOCs) located in Lynn, Massachusetts, USA, Dublin, Republic of Ireland, Churu India and Pune India. There is a television/media operation center (TOC) in Baltimore, Maryland carrying media and broadcast traffic on both full-time and occasional use.
The network has cable landing stations in:
- Herring Cove, Nova Scotia, Canada
- Lynn, Essex County, Massachusetts, USA
- Dublin, County Dublin, Republic of Ireland, Sutton (from Herring Cove)/Baldoyle (to Ainsdale Sands)
- Southport (Ainsdale Sands), Merseyside, England
Current network locations include:
- New York City (multiple sites), US
- Albany, NY, US
- Weehawken, NJ, US
- Newark, NJ, US
- Secaucus, NJ, US
- White Plains, NY, US
- Stamford, CT, US
- Pittsburgh, PA, US
- Cleveland, OH, US
- Philadelphia, PA, US
- Buffalo, NY, US
- Boston, MA, US
- Ashburn, VA, US
- McLean, VA, US
- Richmond, VA, US
- Raleigh, NC, US
- Charlotte, NC, US
- Atlanta, GA, US
- Chicago, IL, US
- Montreal, Quebec, Canada
- Toronto, Ontario, Canada
- Dublin, Republic of Ireland
- Manchester, UK
- London, UK
- Reading, UK
- Slough, UK
- Southport CLS, UK
- Frankfurt, Germany
- Düsseldorf, Germany
- Mannheim, Germany
- Amsterdam, Netherlands
- Paris, France
- Strasbourg, France
- Brussels, Belgium
- Armagh, UK
- Ballymena, UK
- Belfast, UK
- Castleblayney, Republic of Ireland
- Coleraine CLS, UK
- Derry, UK
- Dublin, Ireland
- Letterkenny, Republic of Ireland
- Monaghan, Republic of Ireland
- Omagh, UK
- Portadown, UK
- Strabane, UK
- Atrato Selects Hibernia Networks for Its First Ever Native 100 Gigabit Ethernet Deployment within Europe
- "Media Services Company MediaXstream Rebranded as Hibernia Media". thewhir.com. 2010-04-08. Retrieved 2017-06-02.
- "Hibernia Atlantic unit takes over MediaConnect business from TeliaSonera International Carrier". globaltelecomsbusiness.com. 2012-08-31. Retrieved 2017-06-02.
- Williams, Christopher (September 11, 2011). "The $300m cable that will save traders milliseconds". The Daily Telegraph. London.
- "Hibernia Atlantic Takes GFN To Tokyo". telecomramblings.com. 2011-04-18. Retrieved 2017-06-02.
- "Hibernia Networks acquires Atrato IP Networks". lightwaveonline.com. 2013-09-03. Retrieved 2017-06-02.
- "GTT acquires Hibernia Networks for $590M, adds global fiber, low-latency routes to portfolio". fiercetelecom.com. 2016-11-10. Retrieved 2017-06-02.
- Light Reading Europe - Optical Networking - Hibernia Offers Cross-Atlantic 40G - Telecom News Wire
- "Cable project 'will come to city'". BBC News. February 20, 2009. Retrieved May 4, 2010.
- "History of Nova Scotia with special attention given to Communications and Transportation (cite for Herring Cove landing point)". Retrieved November 29, 2006.
- "$80,000,000 fibre-optic site opens in Herring Cove 360networks station has far-flung connections (cite for Hospital Point, Herring Cove landing point)". Retrieved November 29, 2006.