Kaitak From Ireland, joined Aug 1999, 12738 posts, RR: 34 Posted (5 years 1 month 2 weeks 2 days 20 hours ago) and read 15001 times:
I have been using a superb new site (well, new to me!) called Radarvirtuel, which is excellent for European flights. However, when you click on an aircraft, one of the pieces of data it gives you is the ICAO Hex Code. Can anyone tell me what this is and what is means? Who assigns it and is it specific to the acft itself?
FredT From United Kingdom, joined Feb 2002, 2185 posts, RR: 26
Reply 1, posted (5 years 1 month 2 weeks 2 days 20 hours ago) and read 14991 times:
A unique 24 bit code assigned to each aircraft equipped with a mode S transponder. That's effectively the ID of the aircraft. Haven't heard of it being called the ICAO code before, but then again it's not something I work with. Has to be the same.
I thought I was doing good trying to avoid those airport hotels... and look at me now.
The state of registration. The first 4 to 14 bits define the state of registry, the remaining 10-20 bits is the unique part of the address, and identified that aircraft registration in the state of registry.
Similar to how aircraft in the UK start their registration with "G", and then have unique letter after the -, like G-CIVA.
We are addicted to our thoughts. We cannot change anything if we cannot change our thinking – Santosh Kalwar
Oly720man From United Kingdom, joined May 2004, 6913 posts, RR: 11
Reply 5, posted (5 years 1 month 2 weeks 2 days 3 hours ago) and read 14847 times:
Beware that on sites like this, though the aircraft info may be accurate the flight routing may be dodgy. Today, for example it has US9195 as routing DUB-PHL, but it left MAN, having diverted in from LGW as US732 yesterday.
It's showing over the sea to the west of Northern Ireland at the moment.