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 26 Apr 1130 UTC 26 Apr 1900 UTC 54/20 53/30 51/40 49/50 - 310 320 330 340 350 360 370 380 390
A 27 Apr 1130 UTC 27 Apr 1900 UTC 52/20 50/30 48/40 46/50 - 310 320 330 350 360 370 390
B 26 Apr 1130 UTC 26 Apr 1900 UTC 53/20 52/30 50/40 48/50 - 310 320 330 350 360 370 390
B 27 Apr 1130 UTC 27 Apr 1900 UTC 51/20 49/30 47/40 45/50 - 310 320 330 350 360 370 390
C 26 Apr 1130 UTC 26 Apr 1900 UTC 5230/20 5130/30 4930/40 4730/50 - 350 360 370 390
C 27 Apr 1130 UTC 27 Apr 1900 UTC 50/20 48/30 46/40 44/50 - 310 320 330 350 360 370 390
D 26 Apr 1130 UTC 26 Apr 1900 UTC 52/20 51/30 49/40 47/50 - 310 320 330 350 360 370 390
D 27 Apr 1130 UTC 27 Apr 1900 UTC 49/20 47/30 45/40 43/50 42/60 - 310 320 330 350 360 370 390
E 26 Apr 1130 UTC 26 Apr 1900 UTC 51/20 50/30 48/40 46/50 - 310 320 330 350 360 370 390
E 27 Apr 1130 UTC 27 Apr 1900 UTC 48/20 46/30 44/40 42/50 41/60 - 310 320 330 350 360 370 390
F 26 Apr 1130 UTC 26 Apr 1900 UTC 50/20 49/30 46/40 43/50 - 310 320 330 350 360 370 390
F 27 Apr 1130 UTC 27 Apr 1900 UTC 43/40 41/50 40/60 - 320 340 360 380
G 26 Apr 1130 UTC 26 Apr 1900 UTC 49/20 48/30 45/40 42/50 42/60 - 310 320 330 350 360 370 390
G 27 Apr 1130 UTC 27 Apr 1900 UTC 42/40 40/50 - 320 340 360 380
S 27 Apr 0100 UTC 27 Apr 0800 UTC 56/50 57/40 57/30 57/20 320 330 340 350 360 370 380 390 400 -
T 27 Apr 0100 UTC 27 Apr 0800 UTC 55/50 56/40 56/30 56/20 320 330 340 350 360 370 380 390 400 -
U 27 Apr 0100 UTC 27 Apr 0800 UTC 54/50 55/40 55/30 55/20 320 330 340 350 360 370 380 390 400 -
V 27 Apr 0100 UTC 27 Apr 0800 UTC 5330/50 5430/40 5430/30 5430/20 350 360 370 380 390 -
W 27 Apr 0100 UTC 27 Apr 0800 UTC 53/50 54/40 54/30 54/20 320 330 340 350 360 370 380 390 400 -
X 27 Apr 0100 UTC 27 Apr 0800 UTC 52/50 53/40 53/30 53/20 320 330 340 350 360 370 380 390 400 -
Y 27 Apr 0100 UTC 27 Apr 0800 UTC 51/50 52/40 52/30 52/20 320 330 340 350 360 370 380 390 400 -
Z 27 Apr 0100 UTC 27 Apr 0800 UTC 44/50 47/40 50/30 50/20 320 340 360 380 400 -
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 27 Apr 0700 UTC 27 Apr 2100 UTC 52N170W 52N160W 51N150W 50N140W
11 27 Apr 1000 UTC 27 Apr 2100 UTC 37N160E 35N170E 32N180E 28N170W
14 27 Apr 0700 UTC 27 Apr 2100 UTC 42N160E 44N170E 44N180E 44N170W 44N160W 44N150W 42N140W 38N130W
2 27 Apr 0700 UTC 27 Apr 2100 UTC 44N160E 46N170E 47N180E 47N170W 47N160W 47N150W 45N140W 42N130W
3 27 Apr 0700 UTC 27 Apr 2100 UTC 43N160E 45N170E 46N180E 46N170W 46N160W 46N150W 44N140W 40N130W
8 27 Apr 0700 UTC 27 Apr 2100 UTC 44N160E 46N170E 47N180E 47N170W 47N160W 47N150W 46N140W 43N130W
A 27 Apr 1900 UTC 28 Apr 0800 UTC 24N170W 25N180E 27N170E 30N160E 33N150E
E 27 Apr 1900 UTC 28 Apr 0800 UTC 43N140W 49N150W 53N160W 55N170W
F 27 Apr 1900 UTC 28 Apr 0800 UTC 37N140W 38N150W 41N160W 41N170W 38N180E 36N170E 35N160E 35N150E
H 27 Apr 1900 UTC 28 Apr 0800 UTC 34N140W 34N150W 35N160W 35N170W 32N180E 29N170E 26N160E 24N150E 23N140E
I 27 Apr 1900 UTC 28 Apr 0800 UTC 32N150W 33N160W 34N170W 31N180E 29N170E 26N160E 24N150E 23N140E
J 27 Apr 0500 UTC 27 Apr 2100 UTC 37N140W 38N150W 40N160W 41N170W 39N180E 35N170E 32N160E 30N150E 29N140E
K 27 Apr 0500 UTC 27 Apr 2100 UTC 32N150W 33N160W 35N170W 34N180E 31N170E 29N160E 28N150E 27N140E
M 27 Apr 1900 UTC 28 Apr 0800 UTC 60N150W 60N160W
Warning: Do not use this data for real-world aviation or navigation. No guarantee of current accuracy is given.