Somehow, some folk managed to extract a huge list of servers dedicated to World of Warcraft, and it quickly proliferated over the various veins of the Internet. It's a very long list, numbering well over 2000 items, since it includes official Blizzard realms from all over the world (or maybe for UK and U.S. only - we're not so sure).

Aside from some "webrealm" and Arena tournament servers, we've also seen several BG servers, a Northrend realm, and even a few QA test realms.

And because the list is long, we've simply taken the servers that aren't accessible by the normal player and placed them here. Their names, including their list positions, are as follows:

• 46 : Northrend.
• 173 : US GM TEST.
• 634 : GM Test realm.
• 833 : Shrine of the Dormant Flame.
• 834 : The Twin Colossals.
• 835 : Lushwater Oasis.
• 838 : Pandaren.
• 840 : Fray Island.
• 900 : The Wrong Server.
• 901 : QA Server.
• 902 : Team 2 Server.
• 903 : Sam's Happy Funland.
• 904 : John's World.
• 905 : Dihydrogen Monoxide.
• 906 : Jesse's Source Server.
• 907 : Jesse's Target Server.
• 908 : BubbaHoTep.
• 909 : Server Id 0 Server.
• 910 : Goodman's Gazebo.
• 911 : Server Id 0 DEV.
• 912 : Test Server (US PVP).
• 913 : Arena Tournament.
• 914 : David.Ray-0.0.0.0.
• 915 : Zealot Blade.
• 916 : Cassandra.
• 917 : Swiftwind.
• 918 : Guardian Blade.
• 919 : Fist of the Titans.
• 920 : Demonslayer.
• 921 : Blanchard.
• 922 : World Tree.
• 924 : Direwing.
• 925 : Kaleidoscope Star.
• 926 : River Pride.
• 927 : Gazlowe.
• 928 : Crystalpine Stinger.
• 929 : Sutarn.
• 930 : Deepfury.
• 931 : Wing of the Whelping.
• 932 : Dark Phantom.
• 933 : Dreamwalker.
• 935 : Frostreaver Crown.
• 936 : Poison-tipped Bone Spear.
• 937 : Claw of the Shadowmancer.
• 938 : Rangers.
• 940 : Isillien.
• 941 : Holy Chanter.
• 942 : Midnight Scythe.
• 944 : Force of Elemental.
• 945 : Galardell.
• 946 : Sundown Marsh.
• 951 : Itharius.
• 953 : Storm Eye.
• 954 : Tyr's Hand.
• 956 : Nighthaven.
• 959 : Dor'Danil.   
• 960 : Falathim.
• 971 : Royal Apothecary Society.
• 972 : Jesse's Source Server 2.
• 973 : Jesse's Target Server 2.
• 976 : Localization Test Server 2.
• 978 : Sundown Marsh.
• 982 : World Tree.
• 985 : Crystalpine Stinger.
• 999 : Zealot Blade.
• 1055 : TW GM Test.
• 1073 : The Night Watch.
• 1074 : Immol'Thar.
• 1135 : Sky'ree.
• 1225 : Hectae.
• 1245 : Merithra.
• 1246 : Penguin 1.
• 1247 : Penguin 2.
• 1249 : QA Internal Test Server 1-8. (8 servers)
• 1257 : Offlimits.
• 1309 : The Undermarket.
• 1324 : Archaedas.
• 1436 : USxy-BG. (12 Servers)
• 1448 : EUxy-BG-zz. (28 Servers)
• 1472 : KRxy-BG. (4 Servers)
• 1478 : TWxy-BG. (2 Servers)
• 1480 : CSBGx. (7 Servers)
• 1526 : QAx-BG. (2 Servers)
• 1528 : CNxy-BG. (16 Servers)
• 1538 : KR Internal Test.
• 1638 : C-Class Test realm.
• 1639 : US Event Realm x. (5 Servers)
• 1644 : KR Event Realm x. (9 Servers)
• 1649 : Event Realm x. (2 Servers)
• 1651 : Évènements x. (2 Servers)
• 1653 : Events x. (2 Servers)
• 1655 : Eventos x. (2 Servers)
• 1700 : Aimee's Development Server.
• 1701 : CN Test Realm 1.
• 1703 : Webrealm. (52 Servers)
• 1787 : PTR_REALM_15.
• 1788 : CN Localization Test.
• 1789 : PTR_REALM_17.
• 1790 : PTR_REALM_18.
• 1791 : PTR_REALM_19.
• 1835 : Coliseum x. (20 Servers)
• 2001 : Alex's Server.
• 2002 : T2 Playtest.
• 2003 : Online Tech Test1.
• 2005 : Compatland.
• 2006 : Web Server Test.
• 2007 : Online Test Realm 2.
• 2008 : Online Test Realm 3.
• 2009 : QA Engineering Server.
• 2010 : patrick.dawson-0.0.0.0.
• 2011 : JWood Dev Tourney CSBG.
• 2012 : (2.4.0) Alec's Realm of Epic Gear.

Now while we're tempted to start speculating on these previously unseen realms, sources say that the list is purely "internal data" and isn't an accurate data set to use for drawing (or jumping to) any conclusions. More developments on Blizzard's World of Warcraft as we come by them.