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 Jul 1130 UTC 27 Jul 1900 UTC 61/20 62/30 61/40 59/50 - 310 320 330 350 360 370
A 28 Jul 1130 UTC 28 Jul 1900 UTC 62/20 63/30 62/40 60/50 - 310 320 330 350 360 370
B 27 Jul 1130 UTC 27 Jul 1900 UTC 60/20 61/30 60/40 58/50 - 310 320 330 340 350 360 370
B 28 Jul 1130 UTC 28 Jul 1900 UTC 61/20 62/30 61/40 59/50 - 310 320 330 350 360 370
C 27 Jul 1130 UTC 27 Jul 1900 UTC 59/20 60/30 59/40 57/50 - 310 320 330 340 350 360 370 380 390
C 28 Jul 1130 UTC 28 Jul 1900 UTC 60/20 61/30 60/40 58/50 - 310 320 330 340 350 360 370
D 27 Jul 1130 UTC 27 Jul 1900 UTC 58/20 59/30 58/40 56/50 - 310 320 330 340 350 360 370 380 390
D 28 Jul 1130 UTC 28 Jul 1900 UTC 57/20 58/30 57/40 55/50 - 310 320 330 340 350 360 370 380 390
E 27 Jul 1130 UTC 27 Jul 1900 UTC 57/20 58/30 57/40 55/50 - 310 320 330 340 350 360 370 380 390
E 28 Jul 1130 UTC 28 Jul 1900 UTC 56/20 57/30 56/40 54/50 - 310 320 330 340 350 360 370 380 390
F 27 Jul 1130 UTC 27 Jul 1900 UTC 5630/20 5730/30 5630/40 5430/50 - 350 360 370 380 390
F 28 Jul 1130 UTC 28 Jul 1900 UTC 5530/20 5630/30 5530/40 5330/50 - 350 360 370 380 390
G 27 Jul 1130 UTC 27 Jul 1900 UTC 56/20 57/30 56/40 54/50 - 310 320 330 340 350 360 370 380 390
G 28 Jul 1130 UTC 28 Jul 1900 UTC 55/20 56/30 55/40 53/50 - 310 320 330 340 350 360 370 380 390
H 28 Jul 1130 UTC 28 Jul 1900 UTC 54/20 55/30 54/40 52/50 - 310 320 330 340 350 360 370 380 390
R 27 Jul 0100 UTC 27 Jul 0800 UTC 50/50 51/40 52/30 53/20 320 330 340 350 360 370 380 390 400 -
R 28 Jul 0100 UTC 28 Jul 0800 UTC 50/50 51/40 52/30 53/20 320 330 340 350 360 370 380 390 400 -
S 27 Jul 0100 UTC 27 Jul 0800 UTC 49/50 50/40 51/30 52/20 320 330 340 350 360 370 380 390 400 -
S 28 Jul 0100 UTC 28 Jul 0800 UTC 49/50 50/40 51/30 52/20 320 330 340 350 360 370 380 390 400 -
T 27 Jul 0100 UTC 27 Jul 0800 UTC 4830/50 4930/40 5030/30 5130/20 350 360 370 380 390 -
T 28 Jul 0100 UTC 28 Jul 0800 UTC 4830/50 4930/40 5030/30 5130/20 350 360 370 380 390 -
U 27 Jul 0100 UTC 27 Jul 0800 UTC 48/50 49/40 50/30 51/20 320 330 340 350 360 370 380 390 400 -
U 28 Jul 0100 UTC 28 Jul 0800 UTC 48/50 49/40 50/30 51/20 320 330 340 350 360 370 380 390 400 -
V 27 Jul 0100 UTC 27 Jul 0800 UTC 47/50 48/40 49/30 50/20 320 330 340 350 360 370 380 390 400 -
V 28 Jul 0100 UTC 28 Jul 0800 UTC 47/50 48/40 49/30 50/20 320 330 340 350 360 370 380 390 400 -
W 27 Jul 0100 UTC 27 Jul 0800 UTC 46/50 47/40 48/30 49/20 320 330 350 360 380 390 400 -
W 28 Jul 0100 UTC 28 Jul 0800 UTC 46/50 47/40 48/30 49/20 320 330 350 360 380 390 400 -
X 27 Jul 0100 UTC 27 Jul 0800 UTC 42/60 44/50 46/40 47/30 48/20 48/15 310 320 340 360 380 400 -
X 27 Jul 0100 UTC 27 Jul 0800 UTC 42/60 44/50 46/40 47/30 48/20 48/15 320 360 380 400 -
X 28 Jul 0100 UTC 28 Jul 0800 UTC 41/60 44/50 46/40 47/30 48/20 48/15 320 360 380 400 -
Y 27 Jul 0100 UTC 27 Jul 0800 UTC 41/60 43/50 45/40 46/30 47/20 47/15 310 320 340 360 380 400 -
Y 27 Jul 0100 UTC 27 Jul 0800 UTC 41/60 43/50 45/40 46/30 47/20 47/15 320 360 380 400 -
Y 28 Jul 0100 UTC 28 Jul 0800 UTC 36/60 41/50 45/40 46/30 47/20 47/15 320 360 380 400 -
Z 27 Jul 0100 UTC 27 Jul 0800 UTC 42/50 44/40 44/30 46/20 46/15 310 320 340 360 380 400 -
Z 27 Jul 0100 UTC 27 Jul 0800 UTC 42/50 44/40 44/30 46/20 46/15 320 360 380 400 -
Z 28 Jul 0100 UTC 28 Jul 0800 UTC 38/50 43/40 45/30 46/20 46/15 320 360 380 400 -
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 28 Jul 0700 UTC 28 Jul 2100 UTC 55N160W 54N150W 52N140W
11 28 Jul 1000 UTC 28 Jul 2100 UTC 35N150E 32N160E 31N170E 29N180E 26N170W
14 28 Jul 0700 UTC 28 Jul 2100 UTC 42N160E 44N170E 46N180E 47N170W 46N160W 44N150W 42N140W 38N130W
2 28 Jul 0700 UTC 28 Jul 2100 UTC 44N160E 46N170E 48N180E 49N170W 48N160W 46N150W 45N140W 42N130W
3 28 Jul 0700 UTC 28 Jul 2100 UTC 43N160E 45N170E 47N180E 48N170W 47N160W 45N150W 43N140W 40N130W
8 28 Jul 0700 UTC 28 Jul 2100 UTC 55N160W 54N150W 52N140W
A 27 Jul 1900 UTC 28 Jul 0800 UTC 27N170W 32N180E 35N170E 36N160E 35N150E
C 27 Jul 1900 UTC 28 Jul 0800 UTC 57N160W 54N180E
E 27 Jul 1900 UTC 28 Jul 0800 UTC 40N140W 41N150W 42N160W 41N170W 41N180E 40N170E 39N160E
F 27 Jul 1900 UTC 28 Jul 0800 UTC 39N140W 40N150W 41N160W 40N170W 40N180E 39N170E 38N160E 36N150E
J 28 Jul 0500 UTC 28 Jul 2100 UTC 40N140W 41N150W 41N160W 40N170W 39N180E 38N170E 36N160E 33N150E
K 28 Jul 0500 UTC 28 Jul 2100 UTC 36N130W 37N140W 39N150W 40N160W 39N170W 38N180E 37N170E 35N160E 32N150E 28N140E
M 27 Jul 1900 UTC 28 Jul 0800 UTC 41N130W 42N140W 43N150W 43N160W 42N170W 42N180E 41N170E 40N160E
Warning: Do not use this data for real-world aviation or navigation. No guarantee of current accuracy is given.