Just wanted to know if the route codes given for each flight are for once in US airspace
for example this from BAW173 Heathrow to JFK
CPT UL9 KENET UN14 PEMOB UN30 BANBA
UL175 GIPER UL175 SOMAX 5000N 02000W
4700N 03000W 4400N 04000W 4200N 05000W
4100N 06000W DOVEY N18C SAILE PLYMM
Are the above its whole flight from the UK to America or just from the place it enters US control?