Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3364
Mikel Arteta (Arsenal) 2095
Marco Silva (Fulham) 1538
Eddie Howe (Newcastle United) 1408
Unai Emery (Aston Villa) 1050
Andoni Iraola (Bournemouth) 820
Daniel Farke (Leeds United) 805
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1538
Kieran McKenna (Ipswich Town) 1370
John Mousinho (Portsmouth) 970
Nathan Jones (Charlton Athletic) 590
Chris Davies (Birmingham City) 467
Paul Heckingbottom (Preston North End) 392
Frank Lampard (Coventry City) 292
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1775
Dave Challinor (Stockport County) 1414
Richie Wellens (Leyton Orient) 1287
Johnnie Jackson (AFC Wimbledon) 1219
Gary Caldwell (Exeter City) 1058
Darren Ferguson (Peterborough United) 986
Grant McCann (Doncaster Rovers) 858
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 5962
Andy Woodman (Bromley FC) 1632
Dean Brennan (Barnet) 1457
Paul Cook (Chesterfield) 1314
Lee Bell (Crewe Alexandra) 1047
Mat Sadler (Walsall) 881
Micky Mellon (Oldham Athletic) 704

  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)