I've seen (well in a VHF sense) the SQ flight in question 17 times over the last 3 months on the ACARS here in SW Ireland. I thought there must have been some mistake when the display read
"C1,.9V-SGC,06DEC28,08.55.57,KEWR,WSSS,SIA021...."
Amazing endurance indeed. It would be crossing somewhere along the western seaboard of Ireland as I get that full coverage, being perched here close to the last parish before NY as they say!