Talk:Aircraft registration

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[edit] Help

Dear colleagues! Please advise me about a registration of a business jet in Austria (OE-...)! Where I could find all info regarding this problem?

Thank you, Best regards,

Roman

[edit] Error

Registration suffix "5B" belongs to Cyprus. In the image, this suffix is attached to Crete, which is a Greek Island. The registration code for Greece is "SX".

G.

Thanks for pointing that out. It was a pretty stupid mistake on my side. I removed the 5B from Crete. PeepP 20:41, 6 July 2006 (UTC)

[edit] Serbia-Montenegro

Does anybody knows if Serbia is still using YU-abc and if Montenegro has got their own? --Necessary Evil 16:21, 21 July 2006 (UTC)

Serbia are still using YU, I dont think Montenegro have been allocated a prefix yet but the ITU may divide up the old Serbia & Montenegro allocation - so it may be one of the following: YT YU YZ 4N 4O my guess would be either 4N or 4O MilborneOne 20:54, 2 August 2006 (UTC)
Thanks a lot. --Necessary Evil 17:20, 4 August 2006 (UTC)
ITU has allocated 4O for Montenegro Requiem mn 13:13, 12 June 2007 (UTC)

[edit] East Timor

Aircraft registration for East Timor wanted! --Necessary Evil 16:21, 21 July 2006 (UTC)

Not sure if has been used on any aircraft yet but the ITU assignment for East Timor/Timor-Leste is 4W MilborneOne 21:07, 2 August 2006 (UTC)
Thank you. --Necessary Evil 17:20, 4 August 2006 (UTC)

[edit] Logic of the system?

Is there any information about the very meaning of the aircraft registration codes? I mean some are quite obvious, SE (Sverige) for Sweden, D (Deutschland), F (France) for France and so on. But others, like N for the USA, OY for Denmark or 9A for Croatia seem to be without any meaning at all. How are new codes created? Why are some of them so absurd? Very few, even of the new ones, are the same as the ISO-codes or the internet domains. --Andhanq 13:10, 12 January 2007 (UTC)

The only logic in the system is they are all based on radio callsigns allocated by the ITU. The single letter codes as you say are simply based on the country names but as the scheme expanded it was probably just pick a prefix group as they joined the ITU. Most countries have a range of prefix codes and can decide themselves which ones to use as aircraft callsigns/registrations.MilborneOne 19:41, 12 January 2007 (UTC)
The USA is a large country that uses a single letter which is not its initial. Any info on why N was chosen for the USA? Q43 11:35, 22 July 2007 (UTC)
My understanding is that it stood for 'nited States. Ahunt 11:54, 22 July 2007 (UTC)
I suspect not, they just picked an available single letter - A, N, K, and W were the ITU allocations and they used K and W for radio stations and N for aircraft. MilborneOne 18:44, 22 July 2007 (UTC)
I am sure that you are correct - my comment was just to show that the aircraft registration system defies logic, although I have heard after-the-fact rationalizations for many of them. The designations are what they are are. Incidentally the USA has used additional letters in the past: NX was for experimental aircraft and NC was for commercial aircraft many years ago. Ahunt 22:10, 22 July 2007 (UTC)

Is there a historic reason why Mexico and Brasil have more than one code? 84.173.202.98 15:52, 27 February 2007 (UTC)

A lot of the larger countries that have two letter combinations normally have a range of prefixes to choose from. Finland for example has OF, OG, OH, OI, and OJ but only uses OH for aircraft callsigns. I understand this is down to individual countries to decide. Some use certain combinations for amateur radio, another for commerical radio, some for marine, some for aeronautical no particular pattern from one country to the next. MilborneOne 20:39, 27 February 2007 (UTC)

[edit] Aircraft codes

There seems to be no logic at all to country civil aircraft codes. Except for some which are apparent and commonly used (like in EU countries - F for France, G for the UK, D for Germany etc)

For example, India is VT. I understand that this code was allocated when the country was under British rule way back in 1947. Obviously it hasn't changed since then. But if you look at the neighbouring countries the codes have no logic and no relation to "VT" nor their country names for eg. Sri Lanka is 4R, Pakistan is AP, Afghanistan is YA, Maldives is 8Q, Bangladesh is S2, Nepal is 9N, Bhutan is A5.......

Does anyone know if there's a method in this madness ?? —The preceding unsigned comment was added by Sm777 (talk • contribs) 14:01, 1 February 2007 (UTC).

I thought I had answered this question above! in 'Logic of the System', if you read my answer above and still have further questions then please ask. Not sure why you think adjacent countries should have similar codes. The allocation is dependant on when they joined the ITU and they where then allocated whatever callsign blocks where not allocated. The early countries used single letters, then as civil aviation expanded they used double letter prefixes, when they ran out they started to use number/letter combinations.MilborneOne 23:30, 3 February 2007 (UTC)

[edit] Andorra

Dear Author s of the european map!

in your map the code D2 is shown, as being from Andorra. I think it should be C3, bacause D2 is for Angola.

Eric

Esteemed maker of the map on this page. The code for Andorra appears to be incorrect as the table on this page notes a different prefix. Thank you. Starmanjr 04:39, 19 March 2007 (UTC)

I noticed just now that I forgot to answer here. I fixed the map on March 19. Thanks for pointing that error out. PeepP 21:23, 1 April 2007 (UTC)

[edit] "Palestine"

I'm removing "Palestine" (SU-Y) from the list since it's not listed in the FAA reference (SU is listed as allocated entirely to Egypt), and the provisional ITU Prefix for the Palestinian Authority is E4. -- uriber 13:51, 24 February 2007 (UTC)

I am not sure the FAA reference is the authority for these allocations! The allocation SU-Y has been used recently by the egyptian authorities for aircraft used in Palestine, I presume because Palestine has no aviation infrastructure yet. For example a current Palestinian Airlines Fokker 50 aircraft is SU-YAI. I agree that E4 is the ITU allocation but it has not been used for aviation purposes yet.MilborneOne 20:21, 24 February 2007 (UTC)

[edit] Codes Not Yet Used

As far as I can tell, the table does not include prefixes that haven't been used fro aviation purposes yet. Why not? Even a Note attached to the relevant ones could inform which haven't been used yet, only assigned. I think it's better than leaving out countries/regions. I am about to make the changes after writing this, feel free to revert. Opinions? Qaanaaq 05:06, 27 October 2007 (UTC)

Sorry you will have to explain - how do we know it has been assigned but not used for aviation purposes. The registrations come from the ITU callsign allocation for a country not all prefixes and combinations are used for aviation. This is a list of aircraft registrations, I would suggest that if an ITU prefix has not been used then it should not be on the list. As far as I know all used current prefixes are in the list. MilborneOne 23:44, 28 October 2007 (UTC)
Hi Milborne. I'm talking about assigned callsigns that have not been on an aircraft. I added East Timor's prefix despite the fact that above you said it hadn't been on any aircraft. Qaanaaq 05:59, 29 October 2007 (UTC)
Sorry still not clear 4W has been allocated by the ITU to East Timor as a radio callsign I dont think we should add it to the list of aircraft registrations until it is actually used. A lot of the radio callsign prefixes are not used for aircraft. I dont think for example we would add KAA-KAZ to the list as this is allocated to the United States but is used for Radio and Television Broadcast stations (example is KMTV). Perhaps the question should be can be cite a source that says 4W will be used for aircraft registrations in East Timor (most references relate to the former owner of the prefix North Yemen). If we cant find a reference then it should be removed. MilborneOne 14:30, 29 October 2007 (UTC)

[edit] Inconsistencies between aircraft registrations and ITU allocations?

  • Germany uses a D- prefix but is only allocated a part of the D callsign series DAA-DRZ
  • Russia is assigned the entire R callsign series RAA-RZZ yet the Philippines are using RP- as the registration prefix for aircraft.
  • Swaziland is assigned the 3DA-3DM callsign series but uses 3D- as the registration prefix for aircraft.
  • The Republic of Fiji owns the rest of the 3D block, 3DN-3DZ and according to the ITU has no other allocations but uses DQ- as the prefix for aircraft. DQ again is part of the German block. It seems Germany isn't issuing suffixes starting with a Q to aircraft - maybe to avoid ambiguouities between D-QABC and DQ-ABC?

This list of inconsistencies isn't necessarily complete; it's just the ones I noticed. Can anybody explain this? Would a list be interesting enough to be part of some article?

See also the ITU's Table of International Call Sign Series

Ralf.Baechle (talk) 09:25, 23 April 2008 (UTC)