NPC FLAGS

0 (Nothing)
1 (Gossip)
2 (Quests)
3 (Quests) (Gossip)

16 (Trainer)
17 (Trainer) (Gossip)
18 (Trainer) (Quests)
19 (Trainer) (Quests) (Gossip)

64 (Profession Trainer)
65 (Profession Trainer) (Gossip)
66 (Profession Trainer) (Quests)
67 (Profession Trainer) (Quests) (Gossip)

80 (Trainer) (Profession Trainer)
81 (Trainer) (Profession Trainer) (Gossip)
82 (Trainer) (Profession Trainer) (Quests)
83 (Trainer) (Profession Trainer) (Quests) (Gossip)

128 (Vendor)
129 (Vendor) (Gossip)
130 (Vendor) (Quests)
131 (Vendor) (Gossip) (Quests)

144 (Vendor) (Trainer)
145 (Vendor) (Trainer) (Gossip)
146 (Vendor) (Trainer) (Quests)
147 (Vendor) (Trainer) (Quests) (Gossip)

208 (Vendor) (Trainer) (Profession Trainer)
209 (Trainer) (Profession Trainer) (Gossip)
210 (Trainer) (Profession Trainer) (Quests)
211 (Trainer) (Profession Trainer) (Quests) (Gossip)


256 (Ammo Vendor)
512 (Food Vendor)

1024 (Poison Vendor)
2048 (Reagent Vendor)
4096 (Armorer)
8192 (Taxi)

16384 (Spirit Healer)
32768 (Spirit Guide)
65536 (Innkeeper)

131072 (Banker)
262144 (Arena Charter)
524288 (Tabard Vendor)

1048576 (Battlefield Person)
2097152 (Auctioneer)
4194304 (Stable)
8388608 (Guild Bank)
570720256 (Un-Selectable)