Editing Southern (Govia Thameslink Railway) (section)

===Current fleet===
{| class="wikitable"
|----- bgcolor="#f9f9f9"
! rowspan="2" |Family
! rowspan="2" |Class
! rowspan="2" |Image
! rowspan="2" |Type
! colspan="2" |Top speed
! rowspan="2" |Number
! rowspan="2" |Carriages
! rowspan="2" |Routes operated
! rowspan="2" |Built
|-
! &nbsp;mph&nbsp;!&nbsp; |mph
! &nbsp;mph&nbsp;!&nbsp;&nbsp; |km/h
|-
| rowspan="3" | [[Bombardier Turbostar]]
| rowspan="3" | [[British Rail Class 171|171]]
| rowspan="3" | [[File:Class 171 Hastings 13745676313.jpg|150px]]<br>[[File:171804Collington.jpg|150px]]
| rowspan="3" | [[diesel multiple unit|DMU]]
| rowspan="10" | 100
| rowspan="10" | 160
| 13<ref name=":0">{{cite magazine|title=EMR Evolves for the Future|magazine=[[Modern Railways]]|issue=889|volume=79|date=October 2022 |page=52}}</ref><ref name="southernrailway.com">[http://www.southernrailway.com/southern/media-centre/useful-information/ Southern Useful Information] {{Webarchive|url=https://web.archive.org/web/20130906223415/http://www.southernrailway.com/southern/media-centre/useful-information/|date=6 September 2013}} - Southern. Retrieved 29 August 2013.</ref>
|align=center| 3
| rowspan="2" | [[Brighton Main Line]] (London Bridge to South Croydon)<br>[[Oxted line]] (to Uckfield only)<br>[[East Coastway line]]<br>[[Marshlink line]]
| rowspan="2" | {{nowrap|2003{{ndash}}04}}
|-
| 4<ref name="southernrailway.com" />
|align=center| 2
|-
| colspan="4" | [[File:Southern Class 171-2-7.png|alt=|378x378px]]<br>[[File:Southern Class 171-4-8.png|739x739px]]
|-
| rowspan="9" | [[Bombardier Electrostar]]
| rowspan="1" | [[British Rail Class 377|377/1]]
| rowspan="7" | [[File:377 322 of Southern at St Denys, Southampton.jpg|150px]]<br>[[File:Southern 377 at Hemel Hempstead.JPG|150px]]<br>[[File:Southern Class 377701 (42130818171).jpg|150px]]
| rowspan="9" | [[electric multiple unit|EMU]]
| 64
| rowspan="2" align="center" | 4
| rowspan="6" | Entire Southern network apart from sections between [[Hurst Green railway station|Hurst Green]] and [[Uckfield railway station|Uckfield]] & between [[Ore railway station|Ore]] and [[Ashford International railway station|Ashford International]]
| rowspan="6" | 2001{{ndash}}14
|-
| rowspan="1" | [[British Rail Class 377|377/2]]
| 15
|-
| rowspan="1" | [[British Rail Class 377|377/3]]
| 28
| align="center" | 3
|-
| rowspan="1" | [[British Rail Class 377|377/4]]
| 75
| align="center" | 4
|-
| rowspan="1" | [[British Rail Class 377|377/6]]
| 26
| rowspan="2" align="center" | 5
|-
| rowspan="2" | [[British Rail Class 377|377/7]]
| 8
|-
| colspan="4" | [[File:Southern Class 377-3..png|alt=|510x510px]]<br>[[File:Southern Class 377-1-4.png|alt=|676x676px]]<br>[[File:Southern Class 377-7.png|alt=|821x821px]]
|-
| rowspan="2" | [[British Rail Class 387|387/2]]
| rowspan="2" | [[File:387204 Gatwick Airport.jpg|150px]]
| rowspan="2" | 110
| rowspan="2" | 177
| Varies
| align="center" | 4<ref name="RailExpressNovember2022">{{cite magazine |date=November 2022 |title=Units |magazine=Rail Express |issue=318 |page=27}}</ref>
| '''Units borrowed from [[Gatwick Express]] on a rotational basis according to demand.'''<p>[[Brighton Main Line]]<br>[[East Coastway line]]<br>[[West Coastway line]] (Brighton to Southampton Central)</p>
| 2016{{ndash}}17
|-
| colspan="4" | [[File:Gatwick Express Class 387-2.png|680px]]
|}