0 Nothing (Default)  
00 Battlemaster  
1 Speaking  
2 Quest  
3 Speaking + Quest  
4 Non-Speaking Vendor  
5 Speaking Vendor (npctext0_0=)  
6 Speaking Vendor w/Quest  
8 Speaking Taxi  
10 Non-Speaking Taxi  
17 Speaking Trainer  
18 Speaking Trainer w/Quest  
21 Speaking Trainer/Vendor  
22 Speaking Trainer/Vendor w/Quest  
33 Spirit Healer  
128 BagSlotVendor  
256 Banker  
197 Speaking Inn Keeper
198 Speaking Inn Keeper w/Quest  
1028 Tabard Designer  
4096 Auctioneer  
16389 Armorer/Weaponsmith/Stable Master  
16390 Stable Master w/Quest  
16401 WeaponMaster  
16407 Armorer/Weaponsmith w/Quest