Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3605
Mikel Arteta (Arsenal) 2336
Marco Silva (Fulham) 1779
Eddie Howe (Newcastle United) 1649
Unai Emery (Aston Villa) 1291
Andoni Iraola (Bournemouth) 1061
Daniel Farke (Leeds United) 1046
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1779
Kieran McKenna (Ipswich Town) 1611
John Mousinho (Portsmouth) 1211
Nathan Jones (Charlton Athletic) 831
Chris Davies (Birmingham City) 708
Paul Heckingbottom (Preston North End) 633
Frank Lampard (Coventry City) 533
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 2016
Dave Challinor (Stockport County) 1655
Richie Wellens (Leyton Orient) 1528
Johnnie Jackson (AFC Wimbledon) 1460
Grant McCann (Doncaster Rovers) 1099
Graham Alexander (Bradford City) 921
Michael Skubala (Lincoln City) 914
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 6203
Andy Woodman (Bromley FC) 1873
Dean Brennan (Barnet) 1698
Paul Cook (Chesterfield) 1555
Lee Bell (Crewe Alexandra) 1288
Micky Mellon (Oldham Athletic) 945
David Artell (Grimsby Town) 900

  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)