Original: It is owned by FirstGroup and combines the service on the cross-London Thameslink railway line between Brighton and Bedford with services along the East Coast Main Line from King 's Cross and Moorgate to Peterborough , Cambridge , and King 's Lynn formerly operated by WAGN , which is now often referred to as the Great Northern Route .
Simplified: It is owned by First Group and combines the service on the cross-London Thameslink railway line between Brighton and Bedford with services along the East Coast Main Line from King 's Cross and Moorgate to Peterborough , Cambridge , and King 's Lynn formerly operated by WAGN , often referred to as Great Northern .