The most members online in one day was 1,896, 2nd March 2015.
102 fan, 185, 2R84, 30 common, 319364, 35B, 37038, 43367, 47403, 90019, Adam0984, adrock1976, ag51ruk, Agent_c, alex17595, alexl92, andyb2706, AndyPJG, AngusH, Antman, AntoniC, argonaut56d, asharpe, Ashlondon, b0b, badassunicorn, Badger1208, bangadrum, BantamMenace, bavvo, BestWestern, Bigfoot, billio, bixxy, Blindtraveler, BlueFox, bluegoblin7, Blueybarnes, bnsf734, Bonemaster, BR Blue, BrightonRed, brit70013, BritishRail83, BRX, BTP, BuhSnarf, cambsy, CapitalStar378, carriageline, caryh, Chris125, Chrism20, cirithungol, cjmillsnun, Class 172 Fan, class303, Clip, cool110, craigwilson, craigybagel, crehld, crh, cuccir, CyrusWuff, d1672, D60, D841 Roebuck, D869, Dachtlerj, dakta, DarloRich, dave_wm, David Turner, dcsprior, DEE-DE, Deerfold, deltic08, Dieseldriver, digger600, DjU, dk1, DmanPoppet, DMTaylor90, Domh245, Down North, DownSouth, Driver@swt, DT611, E-Rail, EazyGuy, eddp, Fahad, fairysdad, Felim_Doyle, FenMan, fgwrich, FOH, fowler9, freetoview33, Freightmaster, furlong, GadgetMan, Gareth, GarethJohn, Garyhb, GatwickDepress, GAZZA666, gith, GRALISTAIR, greatkingrat, gswindale, Gwenllian2001, Hadders, Harbon 1, hassaanhc, hilly, HLE 13, HSTEd, hwl, Hyphen, IanXC, ImDead, Indigo2, IrishDave, JackTheLad, JaJaWa, JakeF, James Starkie, jamesbwxm, JamesRowden, JimmyJones, JMGPannal, johntea, Jonfun, jonmorris0844, Joshrowlands, Juniper Driver, jw, Karl, KeithP, kevinwaltets, Kofieye, L+Y, LAIRA, Laryk, laseandre, Latecomer, LDECRexile, Legzr1, lev441, LitaGolitely, Llanigraham, Loki, lookapigeon, Loop & Link, louis97, LowLevel, LUL, macka, Manchester77, maplins, mark-h, marko31161, marks87, markydh, MarlowDonkey, martinr1, mbreckers, meridian222017, Metrailway, MikeWh, MikeWM, Mikey C, mildertduck, Minilad, Mintona, ModernRailways, Morden Via CHX, Morgsie, mph1977, mrben253, mrpsb, MrTaylor88, najaB, nedchester, Neil Williams, NI 271, NicholasNCE, Nick W, nicobobinus, Nippy, NLC1072, NSEFAN, nw-sparks, Observer, oo la la, Osprey17, PaintYourWagon, palmersears, Parallel, Paul Sidorczuk, paulclass43, Peter Mugridge, physics34, plebb11, pnepaul, postye, rdeez, reb0118, richa2002, richard1976, richardio123, RichardN, RichmondCommu, richw, robshearman, rossco156433, Russardo, rww100, Sacha, Saint66, samj, Sammy the seal, SamS, sarahj, Sarnian, Satseq, scotsman, scrapy, sduob, Searle, SemaphoreSam, sga962, Sharpie, shedman, Silverlinky, Sloppyjag, Smudge.Smith, SN319, Southern313, Spamcan81, SprinterMan, Statto95, superalbs, swadbus, Swr28, SWTH, swt_passenger, tbone, Temple, Temple Meads, Termy, Terrier, TEW, The kids dad, TheEscapist_, TheGrandWazoo, TheGrew, theironroad, TheJRB, TheKnightWho, tjlrailblue, tlionhart, Toby Mangle, Tomnick, Tony2215, tony_mac, Top Cat, tpc, tranzitjim, Treadstone, Tremzinho, Trenitalia, trevwilliams, Trucker Glen, Tryingmybest, tsr, Tubeboy, TukayAway, ushawk, WatcherZero, wellhouse, wellwhatitis, winston270twm, Y961 XBU