NATs
North Atlantic Tracks (NATs) are daily high altitude transatlantic routes between western Europe and the eastern coast of North-America, which provide consistent separation between aircraft. Westward tracks are named incrementally from the beginning of the alphabet (A,B,C...), with the northernmost tracks named first. Similarly, eastward tracks are named incrementally from the end of the alphabet (Z,Y,X...), with the southernmost tracks named first. Daily updates for each direction allow for routing around weather systems and tracking of favourable tailwinds to improve efficiency. The table below shows the current valid NATs and the upcoming published NATs, along with the permissible flight levels in each direction.

Track Valid From Valid To Route East Levels West Levels
A 21 Jan 1130 UTC 21 Jan 1900 UTC 61/20 61/30 61/40 61/50 - 310 320 330 350 360 370
A 22 Jan 1130 UTC 22 Jan 1900 UTC 61/20 62/30 63/40 63/50 - 310 320 330 350 360 370
B 21 Jan 1130 UTC 21 Jan 1900 UTC 60/20 60/30 60/40 59/50 - 310 320 330 350 360 370
B 22 Jan 1130 UTC 22 Jan 1900 UTC 60/20 61/30 62/40 62/50 - 310 320 330 350 360 370
C 21 Jan 1130 UTC 21 Jan 1900 UTC 59/20 59/30 59/40 58/50 - 310 320 330 340 350 360 370 380 390
C 22 Jan 1130 UTC 22 Jan 1900 UTC 59/20 60/30 60/40 59/50 - 310 320 330 350 360 370 380 390
D 21 Jan 1130 UTC 21 Jan 1900 UTC 58/20 58/30 58/40 57/50 - 310 320 330 340 350 360 370 380 390
D 22 Jan 1130 UTC 22 Jan 1900 UTC 58/20 59/30 59/40 58/50 - 310 320 330 340 350 360 370 380 390
E 21 Jan 1130 UTC 21 Jan 1900 UTC 57/20 57/30 57/40 56/50 - 310 320 330 340 350 360 370 380 390
E 22 Jan 1130 UTC 22 Jan 1900 UTC 57/20 58/30 58/40 57/50 - 310 320 330 340 350 360 370 380 390
F 22 Jan 1130 UTC 22 Jan 1900 UTC 56/20 57/30 57/40 56/50 - 310 320 330 340 350 360 370 380 390
R 22 Jan 0100 UTC 22 Jan 0800 UTC 48/50 50/40 53/30 55/20 320 330 340 350 360 370 380 390 400 -
S 21 Jan 0100 UTC 21 Jan 0800 UTC 50/50 52/40 53/30 55/20 320 330 340 350 360 370 380 390 400 -
S 22 Jan 0100 UTC 22 Jan 0800 UTC 47/50 49/40 52/30 54/20 320 330 340 350 360 370 380 390 400 -
T 21 Jan 0100 UTC 21 Jan 0800 UTC 4930/50 5130/40 5230/30 5430/20 350 360 370 380 390 -
T 22 Jan 0100 UTC 22 Jan 0800 UTC 4630/50 4830/40 5130/30 5330/20 350 360 370 380 390 -
U 21 Jan 0100 UTC 21 Jan 0800 UTC 49/50 51/40 52/30 54/20 320 330 340 350 360 370 380 390 400 -
U 22 Jan 0100 UTC 22 Jan 0800 UTC 46/50 48/40 51/30 53/20 320 330 340 350 360 370 380 390 400 -
V 21 Jan 0100 UTC 21 Jan 0800 UTC 48/50 50/40 51/30 53/20 320 330 340 350 360 370 380 390 400 -
V 22 Jan 0100 UTC 22 Jan 0800 UTC 45/50 47/40 50/30 52/20 320 330 340 350 360 370 380 390 400 -
W 21 Jan 0100 UTC 21 Jan 0800 UTC 4730/50 4930/40 5030/30 5230/20 350 360 370 380 390 -
W 22 Jan 0100 UTC 22 Jan 0800 UTC 42/60 44/50 46/40 49/30 51/20 320 330 340 350 360 370 380 390 400 -
X 21 Jan 0100 UTC 21 Jan 0800 UTC 47/50 49/40 50/30 52/20 320 330 340 350 360 370 380 390 400 -
X 22 Jan 0100 UTC 22 Jan 0800 UTC 41/60 43/50 45/40 48/30 50/20 320 330 340 350 360 370 380 390 400 -
Y 21 Jan 0100 UTC 21 Jan 0800 UTC 46/50 48/40 49/30 51/20 320 330 340 350 360 370 380 390 400 -
Y 22 Jan 0100 UTC 22 Jan 0800 UTC 40/60 41/50 43/40 330 350 370 -
Z 21 Jan 0100 UTC 21 Jan 0800 UTC 41/60 44/50 47/40 48/30 50/20 320 360 380 400 -
Z 22 Jan 0100 UTC 22 Jan 0800 UTC 42/50 44/40 47/30 49/20 320 360 380 390 400 -
PACOTS
Pacific Organised Track System (PACOTS) tracks are daily high altitude pacific routes between eastern Asia and the western coast of North-America. Eastward tracks are named numerically (1,2,3...). Similarly, westward tracks are named incrementally from the beginning of the alphabet (A,B,C...). Daily updates for each direction allow for routing around weather systems and tracking of favourable tailwinds to improve efficiency. The table below shows the current valid PACOTS tracks and the upcoming published PACOTS tracks.

Track Valid From Valid To Route
1 22 Jan 0700 UTC 22 Jan 2100 UTC 41N160E 43N170E 45N180E 47N170W 48N160W 49N150W 49N140W
11 22 Jan 1000 UTC 22 Jan 2100 UTC 35N150E 33N160E 30N170E 27N180E 24N170W
14 22 Jan 0700 UTC 22 Jan 2100 UTC 37N160E 38N170E 38N180E 38N170W 38N160W 39N150W 39N140W 38N130W
2 22 Jan 0700 UTC 22 Jan 2100 UTC 39N160E 40N170E 41N180E 41N170W 41N160W 41N150W 41N140W 40N130W
3 22 Jan 0700 UTC 22 Jan 2100 UTC 38N160E 39N170E 40N180E 39N170W 39N160W 40N150W 40N140W 39N130W
8 22 Jan 0700 UTC 22 Jan 2100 UTC 38N160E 39N170E 40N180E 39N170W 39N160W 40N150W 40N140W 39N130W
A 21 Jan 1900 UTC 22 Jan 0800 UTC 27N170W 30N180E 33N170E 36N160E 36N150E
A 22 Jan 1900 UTC 23 Jan 0800 UTC 26N170W 29N180E 31N170E 32N160E 34N150E
C 21 Jan 1900 UTC 22 Jan 0800 UTC 58N160W 57N170W 56N180E
E 21 Jan 1900 UTC 22 Jan 0800 UTC 52N140W 55N150W 56N160W
E 22 Jan 1900 UTC 23 Jan 0800 UTC 50N140W 53N150W 54N160W 54N170W
F 21 Jan 1900 UTC 22 Jan 0800 UTC 50N140W 52N150W 52N160W 50N170W 49N180E 47N170E 44N160E
F 22 Jan 1900 UTC 23 Jan 0800 UTC 42N130W 47N140W 50N150W 51N160W 50N170W 49N180E 47N170E 44N160E
J 22 Jan 0500 UTC 22 Jan 2100 UTC 52N140W 55N150W 57N160W 58N170W
M 21 Jan 1900 UTC 22 Jan 0800 UTC 58N160W 57N170W 56N180E
M 22 Jan 1900 UTC 23 Jan 0800 UTC 60N150W 59N160W
Warning: Do not use this data for real-world aviation or navigation. No guarantee of current accuracy is given.