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 27 Feb 1130 UTC 27 Feb 1900 UTC 60/20 60/30 59/40 58/50 - 310 320 330 340 350 360 370
A 26 Feb 1130 UTC 26 Feb 1900 UTC 60/20 61/30 60/40 58/50 - 310 320 330 340 350 360 370
B 27 Feb 1130 UTC 27 Feb 1900 UTC 59/20 59/30 58/40 57/50 - 310 320 330 340 350 360 370 380 390
B 26 Feb 1130 UTC 26 Feb 1900 UTC 59/20 60/30 59/40 57/50 - 310 320 330 340 350 360 370 380 390
C 27 Feb 1130 UTC 27 Feb 1900 UTC 58/20 58/30 57/40 56/50 - 310 320 330 340 350 360 370 380 390
C 26 Feb 1130 UTC 26 Feb 1900 UTC 58/20 59/30 58/40 56/50 - 310 320 330 340 350 360 370 380 390
D 27 Feb 1130 UTC 27 Feb 1900 UTC 5730/20 5730/30 5630/40 5530/50 - 350 360 370 380 390
D 26 Feb 1130 UTC 26 Feb 1900 UTC 57/20 58/30 57/40 55/50 - 310 320 330 340 350 360 370 380 390
E 27 Feb 1130 UTC 27 Feb 1900 UTC 57/20 57/30 56/40 55/50 - 310 320 330 340 350 360 370 380 390
E 26 Feb 1130 UTC 26 Feb 1900 UTC 56/20 57/30 56/40 53/50 - 310 320 330 340 350 360 370 380 390
F 27 Feb 1130 UTC 27 Feb 1900 UTC 56/20 56/30 55/40 54/50 - 310 320 330 340 350 360 370 380 390
F 26 Feb 1130 UTC 26 Feb 1900 UTC 5530/20 5630/30 5530/40 5230/50 - 350 360 370 380 390
G 26 Feb 1130 UTC 26 Feb 1900 UTC 55/20 56/30 55/40 52/50 - 310 320 330 340 350 360 370 380 390
U 27 Feb 0100 UTC 27 Feb 0800 UTC 53/50 55/40 55/30 54/20 320 330 340 350 360 370 380 390 400 -
V 27 Feb 0100 UTC 27 Feb 0800 UTC 52/50 54/40 54/30 53/20 320 330 340 350 360 370 380 390 400 -
W 27 Feb 0100 UTC 27 Feb 0800 UTC 5130/50 5330/40 5330/30 5230/20 350 360 370 380 390 -
X 27 Feb 0100 UTC 27 Feb 0800 UTC 51/50 53/40 53/30 52/20 320 330 340 350 360 370 380 390 400 -
Y 27 Feb 0100 UTC 27 Feb 0800 UTC 50/50 52/40 52/30 51/20 320 330 340 350 360 370 380 390 400 -
Z 27 Feb 0100 UTC 27 Feb 0800 UTC 49/50 51/40 51/30 50/20 320 330 340 350 360 370 380 390 400 -
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
11 27 Feb 1000 UTC 27 Feb 2100 UTC 35N150E 34N160E 32N170E 29N180E 25N170W
14 27 Feb 0700 UTC 27 Feb 2100 UTC 39N160E 42N170E 44N180E 46N170W 46N160W 45N150W 43N140W 39N130W
15 27 Feb 0700 UTC 27 Feb 2100 UTC 37N160E 37N170E 37N180E 37N170W 37N160W 37N150W 37N140W 35N130W
2 27 Feb 0700 UTC 27 Feb 2100 UTC 55N160W 54N150W 50N140W 45N130W
3 27 Feb 0700 UTC 27 Feb 2100 UTC 40N160E 43N170E 46N180E 48N170W 48N160W 47N150W 45N140W 41N130W
A 27 Feb 1900 UTC 28 Feb 0800 UTC 32N170W 37N180E 41N170E 41N160E
B 27 Feb 1900 UTC 28 Feb 0800 UTC 32N170W 37N180E 41N170E 39N160E 36N150E
C 27 Feb 1900 UTC 28 Feb 0800 UTC 52N140W 53N150W 54N160W 54N170W
E 27 Feb 1900 UTC 28 Feb 0800 UTC 42N130W 44N140W 46N150W 48N160W 50N170W 52N180E
F 27 Feb 1900 UTC 28 Feb 0800 UTC 43N140W 44N150W 45N160W 46N170W 46N180E 45N170E 43N160E
J 27 Feb 0500 UTC 27 Feb 2100 UTC 39N140W 40N150W 42N160W 43N170W 43N180E 42N170E 42N160E
K 27 Feb 0500 UTC 27 Feb 2100 UTC 38N140W 39N150W 41N160W 42N170W 42N180E 41N170E 41N160E
M 27 Feb 1900 UTC 28 Feb 0800 UTC 41N130W 43N140W 44N150W 45N160W 46N170W 46N180E 45N170E 43N160E
Warning: Do not use this data for real-world aviation or navigation. No guarantee of current accuracy is given.