Longest current tenure

Longest current tenure in Premier League
Manager Days
Mikel Arteta (Arsenal) 2376
Eddie Howe (Newcastle United) 1689
Unai Emery (Aston Villa) 1331
Daniel Farke (Leeds United) 1086
Régis Le Bris (Sunderland) 723
Fabian Hürzeler (Brighton and Hove Albion) 722
David Moyes (Everton) 529
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1819
John Mousinho (Portsmouth) 1251
Nathan Jones (Charlton Athletic) 871
Chris Davies (Birmingham City) 748
Paul Heckingbottom (Preston North End) 673
Frank Lampard (Coventry City) 573
Alex Neil (Millwall) 541
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 2056
Richie Wellens (Leyton Orient) 1568
Johnnie Jackson (AFC Wimbledon) 1500
Grant McCann (Doncaster Rovers) 1139
Graham Alexander (Bradford City) 961
Alex Revell (Stevenage) 798
Gary Bowyer (Burton Albion) 554
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 6243
Andy Woodman (Bromley FC) 1913
Dean Brennan (Barnet) 1738
Paul Cook (Chesterfield) 1595
Lee Bell (Crewe Alexandra) 1328
Micky Mellon (Oldham Athletic) 985
David Artell (Grimsby Town) 940

  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)