Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3466
Mikel Arteta (Arsenal) 2197
Marco Silva (Fulham) 1640
Eddie Howe (Newcastle United) 1510
Unai Emery (Aston Villa) 1152
Andoni Iraola (Bournemouth) 922
Daniel Farke (Leeds United) 907
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1640
Kieran McKenna (Ipswich Town) 1472
John Mousinho (Portsmouth) 1072
Nathan Jones (Charlton Athletic) 692
Chris Davies (Birmingham City) 569
Paul Heckingbottom (Preston North End) 494
Frank Lampard (Coventry City) 394
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1877
Dave Challinor (Stockport County) 1516
Richie Wellens (Leyton Orient) 1389
Johnnie Jackson (AFC Wimbledon) 1321
Gary Caldwell (Exeter City) 1160
Grant McCann (Doncaster Rovers) 960
Graham Alexander (Bradford City) 782
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 6064
Andy Woodman (Bromley FC) 1734
Dean Brennan (Barnet) 1559
Paul Cook (Chesterfield) 1416
Lee Bell (Crewe Alexandra) 1149
Mat Sadler (Walsall) 983
Micky Mellon (Oldham Athletic) 806

  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)