Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3584
Mikel Arteta (Arsenal) 2315
Marco Silva (Fulham) 1758
Eddie Howe (Newcastle United) 1628
Unai Emery (Aston Villa) 1270
Andoni Iraola (Bournemouth) 1040
Daniel Farke (Leeds United) 1025
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1758
Kieran McKenna (Ipswich Town) 1590
John Mousinho (Portsmouth) 1190
Nathan Jones (Charlton Athletic) 810
Chris Davies (Birmingham City) 687
Paul Heckingbottom (Preston North End) 612
Frank Lampard (Coventry City) 512
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1995
Dave Challinor (Stockport County) 1634
Richie Wellens (Leyton Orient) 1507
Johnnie Jackson (AFC Wimbledon) 1439
Grant McCann (Doncaster Rovers) 1078
Graham Alexander (Bradford City) 900
Michael Skubala (Lincoln City) 893
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 6182
Andy Woodman (Bromley FC) 1852
Dean Brennan (Barnet) 1677
Paul Cook (Chesterfield) 1534
Lee Bell (Crewe Alexandra) 1267
Micky Mellon (Oldham Athletic) 924
David Artell (Grimsby Town) 879

  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)