Question: This ACMI airline based in Iceland, merged with another airline in 2005, whose main base was where?

Context paragraphs:
FlyMe: Fly Me Europe AB, operating as FlyMe, was a low-cost airline based in Gothenburg, Sweden.  It operated flights from Gothenburg, Stockholm and Malmö to destinations within Europe.  Its main hub was Göteborg Landvetter Airport, with hubs at Malmö Airport and Stockholm-Arlanda Airport.  Beginning in April 2006, it widened its destination network and started daily services to European destinations.  Majority owner of the business was English Billionaire John Robert Porter and his Norwegian business partner Christen Ager-Hanssen.  They also had a majority interest in another airline Global Supply Systems a British all cargo carrier.  FlyMe acquired in late 2006 a 25% stake in Global Supply Systems holding company Riverdon ltd with the aim to create a low cost long haul product.

Denim Air: Denim Air ACMI B.V. was a Dutch charter airline based in Mijdrecht.  It provided ACMI wet lease services to other airlines.  Its main base was Amsterdam Airport Schiphol.  It was wholly owned by Sky Greenland and had 50 employees in January 2016.  Denim operated full charters and under wetlease (ACMI) contracts on behalf of other airlines as well as governments and corporations.  Its operations licence was revoked on 24 November 2016.

Air Niamey: Air Niamey is a scheduled, formerly charter, airline based in Niamey, Niger.  Its main base is Diori Hamani International Airport.  It was formed as a successor to Air Niger, previously operating ACMI equipment only during Hajj/Umrah periods, but now it is going to operate scheduled flights, twice weekly, to Jeddah, and it will also be starting its domestic operations in Niger.

Express.Net Airlines: Express.Net Airlines was a cargo airline based in Naples, Florida, USA.  It operated all-cargo charter and ACMI services in the USA and to Canada, Mexico, South America and the Far East.  Its main base is Naples Municipal Airport.

European Aviation Air Charter: European Aviation Air Charter was an airline based in Bournemouth, United Kingdom.  It operated ad hoc charter services, VIP flights, and inclusive-tour and sub-charter flights, as well as ACMI wet leases for other airlines.  Its main base was Bournemouth Airport.  The company went into administration on Tuesday 2 December 2008.

Air Atlanta Icelandic: Air Atlanta Icelandic is a charter and ACMI airline based in Kópavogur, Iceland.  It specialises in leasing aircraft on an ACMI (Aircraft, Crews, Maintenance, Insurance) and wet lease basis to airlines worldwide needing extra passenger and cargo capacity.  It also operates charter services.  The company operates in different countries and has bases worldwide.

Islandsflug: Islandsflug was an airline and aircraft leasing company based in Iceland.  It operated charter and scheduled passenger and cargo services, as well as wet lease services.  Its main base was Keflavík International Airport, Reykjavík.  In 2005 it merged into Air Atlanta Icelandic.  Landsflug took over the domestic operations of Islandsflug.

Flyant: Flyant, also known as FlyAnt Cargo, was an all-cargo airline based in Palma de Mallorca, Spain.  It operated domestic scheduled services, as well as charter services and ACMI wet leases in Europe and West Africa.  Its main base was Madrid Barajas International Airport.

Phuket Air: Phuket Air (Phuket Airlines Co. Ltd) is an airline based in Bangkok, Thailand.  The airline currently specialises in leasing its fleet of Boeing 747 and 737 aircraft on an ACMI (Aircraft, Crews, Maintenance, Insurance) as well as wet lease basis to airlines worldwide needing extra passenger capacity.  Other services provided include international charter services, "ad hoc" wet leasing services, religious pilgrimage charters (Hajj/Umrah) and dry lease services.  Saudi Arabian Airlines is a major long term client of Phuket Air.  In the past, the airline provided scheduled domestic and international air services.  Its main base is at Suvarnabhumi Airport, Bangkok, with a hub at Phuket International Airport, Phuket.  The airline was an international scheduled carrier before it shifted its focus to the ACMI/wet lease market.

Sunworld International Airlines: Sunworld International Airlines was an airline based in Fort Mitchell, Kentucky, USA.  Its main base is Cincinnati/Northern Kentucky International Airport.  It suspended operations in November 2004, but is seeking to re-establish itself under new ownership.  The airline should not be confused with Sunworld International Airways which was a scheduled passenger airline based in Las Vegas, Nevada.

Supporting paragraphs: Islandsflug Air Atlanta Icelandic
Answer: Reykjavík