Tanachat Trisaksrisakul Rosa If dep airfield is located ro connected to the ATS route the the coded desinator of that route will be first entry. If it is not on or connected to the ATS route the first entry will be DCT followed by the joining point followed by the designator of the ats route. If the destinator airfield is not on or connected to an ATS route the last entry will be DCT. Thank you.