Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3457
Mikel Arteta (Arsenal) 2188
Marco Silva (Fulham) 1631
Eddie Howe (Newcastle United) 1501
Unai Emery (Aston Villa) 1143
Andoni Iraola (Bournemouth) 913
Daniel Farke (Leeds United) 898
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1631
Kieran McKenna (Ipswich Town) 1463
John Mousinho (Portsmouth) 1063
Nathan Jones (Charlton Athletic) 683
Chris Davies (Birmingham City) 560
Paul Heckingbottom (Preston North End) 485
Frank Lampard (Coventry City) 385
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1868
Dave Challinor (Stockport County) 1507
Richie Wellens (Leyton Orient) 1380
Johnnie Jackson (AFC Wimbledon) 1312
Gary Caldwell (Exeter City) 1151
Grant McCann (Doncaster Rovers) 951
Graham Alexander (Bradford City) 773
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 6055
Andy Woodman (Bromley FC) 1725
Dean Brennan (Barnet) 1550
Paul Cook (Chesterfield) 1407
Lee Bell (Crewe Alexandra) 1140
Mat Sadler (Walsall) 974
Micky Mellon (Oldham Athletic) 797

  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)