|/ /1842||South Eastern Railway|
Opened from Reigate Junction to Tonbridge.
|/ /1842||London and Croydon Railway|
London and Brighton Railway and South Eastern Railway using route between Coulsdon and near London Bridge.
|/ /1843||South Eastern Railway|
Extended to Folkestone.
|/ /1844||South Eastern Railway|
Opened throughout to Dover.
|/ /1845||London and Greenwich Railway|
South Eastern Railway
Leased in perpetuity by the South Eastern Railway.
|01/04/1864||Mid Kent Railway (South Eastern Railway)|
Croydon (Addiscombe Road) opened.
|/ /1866||South Eastern Railway|
Sir Edward Watkin (of the Manchester, Sheffield and Lincolnshire Railway, later the Great Central Railway) becomes chairman.
|01/04/1925||Mid Kent Railway (South Eastern Railway)|
Croydon (Addiscombe Road) renamed Croydon (Addiscombe).
|28/02/1926||Mid Kent Railway (South Eastern Railway)|
Croydon (Addiscombe) renamed Addiscombe (Croydon).
|13/06/1955||Mid Kent Railway (South Eastern Railway)|
Addiscombe (Croydon) renamed Addiscombe.
This line is divided into a number of portions.