Displaying networks starting with U
UCCN (Ranked #954)	10 chans	23 users
ugIRC (Ranked #73)	138 chans	899 users
UGNetwork (Ranked #446)	34 chans	87 users
UKChatalot.co.uk (Ranked #729)	16 chans	42 users
Ukchatlineone (Ranked #517)	45 chans	72 users
UKChatterbox (Ranked #63)	118 chans	1,129 users
ukchatters-irc.co.uk (Ranked #957)	20 chans	23 users
UKChatters-Planet.co.uk (Ranked #788)	19 chans	36 users
UKhappychat	1 chans	0 users
UkPalChat (Ranked #768)	20 chans	38 users
UKScifi (Ranked #690)	119 chans	46 users
UltraDominio (Ranked #767)	16 chans	39 users
Umbranet (Ranked #500)	58 chans	75 users
undeadarmy.com (Ranked #895)	4 chans	27 users
UndergroundChat.de (Ranked #472)	36 chans	80 users
undergroundnews (Ranked #742)	21 chans	41 users
UnderMind (Ranked #426)	47 chans	92 users
Undernet (Ranked #2)	26,065 chans	98,696 users
UnderWorld (Ranked #544)	91 chans	65 users
UnGoWa (Ranked #681)	19 chans	47 users
Uni-IRC (Ranked #291)	65 chans	155 users
UniBG (Ranked #11)	13,860 chans	8,370 users
UniBrasil.net	3 chans	0 users
UniNet-FR (Ranked #610)	45 chans	56 users
United-Systems (Ranked #210)	25 chans	235 users
UnitedChat.net (Ranked #458)	74 chans	83 users
Universium (Ranked #905)	27 chans	27 users
UniversNet (Ranked #552)	83 chans	64 users
Unixfreunde.de (Ranked #434)	24 chans	89 users
Unknown.com.mx (Ranked #481)	39 chans	78 users
UnlogicalIRC (Ranked #205)	106 chans	240 users
uplinkcorp (Ranked #624)	36 chans	54 users
URChat (Ranked #442)	43 chans	88 users
U-Chat		Not being indexed
UAAP		Not being indexed
Uber-IRC		Not being indexed
uber-l33t		Not being indexed
UBIRC		Not being indexed
ucod		Not being indexed
Ufc-Pride		Not being indexed
UFnet		Not being indexed
UGCentral		Not being indexed
UICN		Not being indexed
UiNet.eu		Not being indexed
uIRC		Not being indexed
UK-Chat-Net		Not being indexed
UK-Chatzone.co.uk		Not being indexed
UK-Net		Not being indexed
UK-PS		Not being indexed
uk-ushosting		Not being indexed
Uk2RAQ		Not being indexed
UKBabblers-Online		Not being indexed
UKChatalot		Not being indexed
ukchatrooms		Not being indexed
UkChatterholics		Not being indexed
UKfunchat		Not being indexed
ULAK		Not being indexed
Ulisseo		Not being indexed
Ultimate-DnD		Not being indexed
ultimategamezone		Not being indexed
UltimateIRC		Not being indexed
Ultra-Chat		Not being indexed
Ultra-Irc		Not being indexed
UltraAnime		Not being indexed
UltraChat		Not being indexed
UltraFree		Not being indexed
UltraIRC		Not being indexed
ultrAslan		Not being indexed
UmountNET		Not being indexed
Undeadirc		Not being indexed
Under-Chat.net		Not being indexed
Under-Fire		Not being indexed
Under-Geek.info		Not being indexed
Under-Web		Not being indexed
UnderBG		Not being indexed
UnderChat		Not being indexed
UnderCraft		Not being indexed
UndergroundCandy		Not being indexed
UnderIRC.ro		Not being indexed
Underload.de		Not being indexed
Undermex		Not being indexed
UndermindedNetwork		Not being indexed
UndermIRC		Not being indexed
UnderMX		Not being indexed
UnderPT		Not being indexed
UnderService		Not being indexed
Underx		Not being indexed
UnderZ		Not being indexed
Unerror		Not being indexed
UNetChat		Not being indexed
uNFIrc		Not being indexed
Uni-chat		Not being indexed
UniBrasil		Not being indexed
UniChat		Not being indexed
Unifik2		Not being indexed
UnionHispana		Not being indexed
Unionirc		Not being indexed
UnionLatina		Not being indexed
UniqueChat		Not being indexed
unIRC		Not being indexed
unIRC.com.ar		Not being indexed
UniRed		Not being indexed
UnitaSSoytS		Not being indexed
United-Chat		Not being indexed
United-Chat.de		Not being indexed
United-Starfleet		Not being indexed
UnitedChat.org		Not being indexed
UnitedIRC		Not being indexed
UnitedP2P		Not being indexed
UnitedUsers		Not being indexed
Univers		Not being indexed
Universal-Chat		Not being indexed
UniversoChat.net		Not being indexed
Uniworlds		Not being indexed
UnixAuthority		Not being indexed
UnixBabes		Not being indexed
UnixIRC		Not being indexed
UNIXLIVE		Not being indexed
UnixR		Not being indexed
unixsite		Not being indexed
uNkn0wn.eu		Not being indexed
Unknown-team		Not being indexed
UnknownIRC		Not being indexed
Unknownz		Not being indexed
UNplug.org.ve		Not being indexed
Unreal-IRC		Not being indexed
Unreal-Reality		Not being indexed
Unreal.lu		Not being indexed
Unrealanime		Not being indexed
UnrealBG.com		Not being indexed
UnrealGamer		Not being indexed
UnrealGamers.Net		Not being indexed
UnrealNET		Not being indexed
Unspecific		Not being indexed
UnTouchables.net.au		Not being indexed
UnutNET		Not being indexed
UPIChat		Not being indexed
UQ		Not being indexed
URnet		Not being indexed
US-Irc		Not being indexed
USAchat		Not being indexed
USAChatterbox		Not being indexed
USAnetwork		Not being indexed
USChatterBOX		Not being indexed
User-4you.de		Not being indexed
USMnet		Not being indexed
USRNet		Not being indexed
UTChat		Not being indexed
UTOPIA		Not being indexed
UtopiaMediaIRC		Not being indexed
UzayNet		Not being indexed

Networks in bold have an active representative