sensors Mode-S transponder

39DD00

ICAO 24-bit transponder address · allocated to France

Hex
39DD00
Octal
16356400
Decimal
3,792,128
Country
FR
No current signal · last broadcast 4h ago
Flights observed
195
Distinct callsigns
20
Country
FR
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 39DD00.

Country allocation

The ICAO 24-bit address 39DD00 falls within the block assigned to France (FR) by ICAO Annex 10, Volume III. Every aircraft registered in France receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
TVF42VD - 4 2026-07-12
TVF26SK - 4 2026-07-12
TVF15GP Transavia France 4 2026-07-23
TVF934S Transavia France 3 2026-07-23
TVF73KL - 3 2026-07-06
TVF41HB - 3 2026-07-08
TVF39PQ - 3 2026-07-22
TVF25AT - 3 2026-07-07
TVF21CH - 3 2026-07-22
TVF97KC - 2 2026-06-20
TVF96RJ - 2 2026-07-04
TVF93GW - 2 2026-07-16
TVF92NS - 2 2026-06-26
TVF8965 - 2 2026-06-24
TVF8964 Transavia France 2 2026-06-24
TVF88JV - 2 2026-07-06
TVF80TB - 2 2026-07-07
TVF77CG - 2 2026-07-06
TVF73RQ - 2 2026-07-08
TVF73DJ - 2 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 TVF54ZV OLB → ORY Jul 24, 19:00 UTCJul 24, 20:35 UTC1h 35m
2026-07-24 TVF25FK ORY → OLB Jul 24, 16:15 UTCJul 24, 17:55 UTC1h 40m
2026-07-24 TVF12GT IBZ → ORY Jul 24, 13:30 UTCJul 24, 15:05 UTC1h 35m
2026-07-24 TVF74JQ ORY → IBZ Jul 24, 10:25 UTCJul 24, 12:10 UTC1h 45m
2026-07-24 TVF14KM OPO → ORY Jul 24, 07:25 UTCJul 24, 09:00 UTC1h 35m
2026-07-24 TVF13DQ ORY → OPO Jul 24, 04:25 UTCJul 24, 06:20 UTC1h 55m
2026-07-23 TVF934S OUD → ORY Jul 23, 18:50 UTCJul 23, 21:00 UTC2h 10m
2026-07-23 TVF15GP ORY → OUD Jul 23, 15:20 UTCJul 23, 17:30 UTC2h 10m
2026-07-23 TVF48RW MLA → ORY Jul 23, 11:10 UTCJul 23, 13:45 UTC2h 35m
2026-07-23 TVF163D ORY → MLA Jul 23, 07:35 UTCJul 23, 09:40 UTC2h 5m
2026-07-23 TVF83MR BCN → ORY Jul 23, 04:35 UTCJul 23, 05:55 UTC1h 20m
2026-07-22 TVF32DR ORY → BCN Jul 22, 19:20 UTCJul 22, 20:40 UTC1h 20m
2026-07-22 TVF39PQ ATH → ORY Jul 22, 14:45 UTCJul 22, 17:55 UTC3h 10m
2026-07-22 TVF21CH ORY → ATH Jul 22, 04:35 UTCJul 22, 13:30 UTC8h 55m
2026-07-21 TVF431J CPH → ORY Jul 21, 18:25 UTCJul 21, 20:00 UTC1h 35m
2026-07-21 TVF30QP ORY → CPH Jul 21, 15:55 UTCJul 21, 17:30 UTC1h 35m
2026-07-21 TVF22TA RHO → ORY Jul 21, 11:10 UTCJul 21, 14:50 UTC3h 40m
2026-07-21 TVF17EZ ORY → RHO Jul 21, 06:45 UTCJul 21, 09:50 UTC3h 5m
2026-07-20 TVF39PQ ATH → ORY Jul 20, 17:10 UTCJul 20, 20:30 UTC3h 20m
2026-07-20 TVF21CH ORY → ATH Jul 20, 13:15 UTCJul 20, 15:55 UTC2h 40m
2026-07-20 TVF43EV - Jul 20, 09:20 UTCJul 20, 11:25 UTC2h 5m
2026-07-20 TVF60YB - Jul 20, 05:55 UTCJul 20, 08:20 UTC2h 25m
2026-07-19 TVF27QD - Jul 19, 18:20 UTCJul 19, 20:45 UTC2h 25m
2026-07-19 TVF49ES - Jul 19, 14:55 UTCJul 19, 16:55 UTC2h 0m
2026-07-19 TVF46DS SVQ → ORY Jul 19, 11:10 UTCJul 19, 13:05 UTC1h 55m
2026-07-19 TVF27PF ORY → SVQ Jul 19, 08:00 UTCJul 19, 10:10 UTC2h 10m
2026-07-19 TVF45BX - Jul 19, 04:45 UTCJul 19, 06:25 UTC1h 40m
2026-07-18 TVF97AM ORY → FCO Jul 18, 19:15 UTCJul 18, 20:40 UTC1h 25m
2026-07-18 TVF28CY - Jul 18, 14:15 UTCJul 18, 17:30 UTC3h 15m
2026-07-18 TVF60HA - Jul 18, 10:00 UTCJul 18, 12:50 UTC2h 50m
2026-07-18 TVF739F MAH → ORY Jul 18, 07:15 UTCJul 18, 08:50 UTC1h 35m
2026-07-18 TVF68FN ORY → MAH Jul 18, 04:40 UTCJul 18, 06:10 UTC1h 30m
2026-07-17 TVF54ZU RHO → ORY Jul 17, 16:55 UTCJul 17, 20:40 UTC3h 45m
2026-07-17 TVF47UX ORY → RHO Jul 17, 12:40 UTCJul 17, 15:44 UTC3h 5m
2026-07-17 TVF29CK VLC → ORY Jul 17, 09:15 UTCJul 17, 11:00 UTC1h 45m
2026-07-17 TVF37DE ORY → VLC Jul 17, 06:15 UTCJul 17, 07:55 UTC1h 40m
2026-07-16 TVF38EU DBV → ORY Jul 16, 17:45 UTCJul 16, 20:00 UTC2h 15m
2026-07-16 TVF52LG ORY → DBV Jul 16, 14:35 UTCJul 16, 16:19 UTC1h 45m
2026-07-16 TVF70XK - Jul 16, 09:45 UTCJul 16, 13:00 UTC3h 15m
2026-07-16 TVF93GW - Jul 16, 04:30 UTCJul 16, 08:20 UTC3h 50m
2026-07-15 TVF35DL PRG → ORY Jul 15, 18:45 UTCJul 15, 20:20 UTC1h 35m
2026-07-15 TVF21ZC ORY → PRG Jul 15, 16:15 UTCJul 15, 17:35 UTC1h 20m
2026-07-15 TVF87YR - Jul 15, 10:20 UTCJul 15, 14:45 UTC4h 25m
2026-07-15 TVF48BB ORY → LCA Jul 15, 05:15 UTCJul 15, 09:05 UTC3h 50m
2026-07-14 TVF43BM OPO → ORY Jul 14, 18:30 UTCJul 14, 20:00 UTC1h 30m
2026-07-14 TVF95NL ORY → OPO Jul 14, 15:10 UTCJul 14, 17:10 UTC2h 0m
2026-07-14 TVF63EC - Jul 14, 10:40 UTCJul 14, 13:40 UTC3h 0m
2026-07-14 TVF75WS - Jul 14, 05:25 UTCJul 14, 09:00 UTC3h 35m
2026-07-13 TVF36UQ SKG → ORY Jul 13, 16:00 UTCJul 13, 18:50 UTC2h 50m
2026-07-13 TVF54PL ORY → SKG Jul 13, 12:05 UTCJul 13, 14:25 UTC2h 20m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Mode-S 39DD00 frequently asked

What is Mode-S code 39DD00?
39DD00 is an ICAO 24-bit transponder address. Allocated to France.
Where is Mode-S 39DD00 registered?
Mode-S code 39DD00 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39DD00 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39DD00, octal 16356400, decimal 3,792,128.
What flights does 39DD00 operate?
Mode-S 39DD00 has broadcast 20 distinct callsigns, including TVF42VD, TVF26SK, TVF15GP, TVF934S, TVF73KL.