FIX 4.4 : Messages by Category

         IOI <6>
         Advertisement <7>
      Event Communication
         News <B>
         Email <C>
         Quote Request <R>
         Quote <S>
         Quote Cancel <Z>
         Quote Status Request <a>
         Mass Quote Acknowledgement <b>
         Mass Quote <i>
         Quote Request Reject <AG>
         RFQ Request <AH>
         Quote Status Report <AI>
         Quote Response <AJ>
      Market Data
         Market Data Request <V>
         Market Data - Snapshot/Full Refresh <W>
         Market Data - Incremental Refresh <X>
         Market Data Request Reject <Y>
      Security and Trading Session Definition/Status
         Security Definition Request <c>
         Security Definition <d>
         Security Status Request <e>
         Security Status <f>
         Trading Session Status Request <g>
         Trading Session Status <h>
         Security Type Request <v>
         Security Types <w>
         Security List Request <x>
         Security List <y>
         Derivative Security List Request <z>
         Derivative Security List <AA>
   Orders and Executions (Trade)
      Single/General Order Handling
         Execution Report <8>
         Order Cancel Reject <9>
         New Order Single <D>
         Order Cancel Request <F>
         Order Cancel/Replace Request <G>
         Order Status Request <H>
         Don't Know Trade <Q>
         Bid Response <l>
         Order Mass Cancel Request <q>
         Order Mass Cancel Report <r>
         Order Mass Status Request <AF>
      List/Program/Basket Trading
         New Order List <E>
         List Cancel Request <K>
         List Execute <L>
         List Status Request <M>
         List Status <N>
         Bid Request <k>
         List Strike Price <m>
      Cross Orders
         New Order Cross <s>
         Cross Order Cancel/Replace Request <t>
         Cross Order Cancel Request <u>
      Multileg Orders
         New Order Multileg <AB>
         Multileg Order Cancel/Replace <AC>
      Allocation and Ready-To-Book
         Allocation Instruction <J>
         Allocation Instruction Ack <P>
         Allocation Report <AS>
         Allocation Report Ack <AT>
      Settlement Instructions
         Settlement Instructions <T>
         Settlement Instruction Request <AV>
      Registration Instructions
         Registration Instructions <o>
         Registration Instructions Response <p>
      Trade Capture ("StreetSide") Reporting
         Trade Capture Report Request <AD>
         Trade Capture Report <AE>
         Trade Capture Report Request Ack <AQ>
         Trade Capture Report Ack <AR>
         Confirmation <AK>
         Confirmation Ack <AU>
         Confirmation Request <BH>
      Position Maintenance
         Position Maintenance Request <AL>
         Position Maintenance Report <AM>
         Request For Positions <AN>
         Request for Positions Ack <AO>
         Position Report <AP>
         Assignment Report <AW>
      Collateral Management
         Collateral Request <AX>
         Collateral Assignment <AY>
         Collateral Response <AZ>
         Collateral Report <BA>
         Collateral Inquiry <BB>
         Collateral Inquiry Ack <BG>
         Business Message Reject <j>
         Network Counterparty System Status Request <BC>
         Network Counterparty System Status Response <BD>
         User Request <BE>
         User Response <BF>
   Heartbeat <0>
   Test Request <1>
   Resend Request <2>
   Reject <3>
   Sequence Reset <4>
   Logout <5>
   Logon <A>
   XML Message <n>