Type: int

Number of repeating groups of RoutingID and RoutingType values.
See Appendix L – Pre-Trade Message Targeting/Routing

Added in protocol FIX.4.2

See in: FIX.4.3, FIX.4.4, FIX.5.0, FIX.5.0SP1, FIX.5.0SP2, FIX.5.0SP2 EP240.