Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3322
Mikel Arteta (Arsenal) 2053
Marco Silva (Fulham) 1496
Eddie Howe (Newcastle United) 1366
Unai Emery (Aston Villa) 1008
Andoni Iraola (Bournemouth) 778
Daniel Farke (Leeds United) 763
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1496
Kieran McKenna (Ipswich Town) 1328
John Mousinho (Portsmouth) 928
Nathan Jones (Charlton Athletic) 548
Chris Davies (Birmingham City) 425
Paul Heckingbottom (Preston North End) 350
Frank Lampard (Coventry City) 250
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1733
Dave Challinor (Stockport County) 1372
Richie Wellens (Leyton Orient) 1245
Johnnie Jackson (AFC Wimbledon) 1177
Gary Caldwell (Exeter City) 1016
Darren Ferguson (Peterborough United) 944
Grant McCann (Doncaster Rovers) 816
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 5920
Andy Woodman (Bromley FC) 1590
Dean Brennan (Barnet) 1415
Paul Cook (Chesterfield) 1272
Lee Bell (Crewe Alexandra) 1005
Mat Sadler (Walsall) 839
Micky Mellon (Oldham Athletic) 662
  The longest managerial reign of all time in the English football league belongs to Fred Everiss, who was manager of West Bromwich Albion for over 45 years (from 1902 to 1948)