Need help understanding flight codes


I know nothing about aviation. Can anyone tell me what this means:



Click on “decode” next to the flight route to decode the routing.

Here’s what I get for this flight: RPA3185 on 30 Dec:


Clicking “decode” I get

Name Type Latitude Longitude
KIND Origin Airport 39.7172991 -86.2946612
DAWNN Reporting Point 38.5682500 -86.2286944
DAWNN Reporting Point 38.5682500 -86.2286944
IIU VOR-TAC (NAVAID) 38.1034722 -85.5774444
VXV VOR-TAC (NAVAID) 35.9048333 -83.8947222
FLABB Reporting Point 35.8983056 -83.4844722
PENSK Waypoint 35.8683056 -82.2954722
BURLS Reporting Point 35.8583056 -81.9715556
WUDDS Waypoint 35.7960556 -81.8752222
RCHRD Waypoint 35.7337222 -81.7790556
SWENK Reporting Point 35.6714722 -81.6833056
SHINE Reporting Point 35.6088056 -81.5871389
JOHNS Reporting Point 35.5566944 -81.5073611
FOSSE Reporting Point 35.4522778 -81.3481111
CEDOX Waypoint 35.2648889 -81.0728333
DOSBE Waypoint 35.1078056 -81.0588889
IKICO Waypoint 34.9352222 -81.0436667
PACOK Waypoint 34.8023611 -81.0319722
KCLT Destination Airport 35.2137407 -80.9490690

Some common items:
ABC: A three letter grouping indicates a VORTAC (a navigational aid)

GROUP: A pronounceable five letter word indicates an a waypoint or reporting point on a route

Jxx: J followed by a number. Think of it has a highway in the sky. These are usually high altitude routes.

Vxx: Similar to J routes. These are low-altitude VFR (Visual Flight Rules) routes.

XXXXX1: Five letters followed by a number is a SID (Standard Instrument Departure) or STAR (Standard Terminal Arrival Route). These are standard procedures for aircraft departing and arriving respectively at an airport

The definitions above are just a summary of the codes you can find in routings.


Vxx are low altitude airways and may be used VFR or IFR.

EB is a ground station with that code assigned to it. There won’t be another station with that code nearby but as you can imagine there are not enough codes to go around so there are probably several dozen of them around the world with EB assigned to them.
Since it is a two letter code it would be what is called a non directional beacon (NDB). These have been around forever and are being phased out. As Dami says three letter codes are the more modern and accurate VOR, Tacan or combined as VORTAC stations. But with GPS even these are going to be phased out in the near future. The codes are transmitted as Morse code so pilots can verify they are tuned to the correct station. Thankfully the charts indicate what the Morse code is, we don’t have to know Morse code any more.

FL 450 means flight level 450. Above certain altitudes depending on where in the world you are all pilots set their altimeters to a standard barometric setting of 29.92" of mercury (1013 mb anywhere outside the US) instead of the local barometric setting. Above that transition level the terminology becomes Flight Level instead of altitude. FL 450 would be 45,000 ft. There would be a slight difference in FL and altitude depending on the difference between 29.92 (1013) and the local barometric reading.


This doesn’t appear to be a route, but rather some other string you fond somewhere. Another possible translation of EB is EastBound.


STU is Strumble, a VOR in England. Numpo and Nigit are fixes on the route into London.