Message Types

0xB1          Time Reference(C1 Only)
0x20          Time
0x97          Unit Clear
0xAD          Auction Notification
0xAE          Auction Cancel
0xAF          Auction Trade
0xD1          Options Auction Update
0x96          Auction Summary
0xD2          Width Update
0x2E          Symbol Mapping
0x2D          End of Session
0x9D          SOQ Strike Range Update
0x9E          Constituent Symbol Mapping