Apparatus

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sensors Mode-S transponder

503D4D

ICAO 24-bit transponder address · allocated to Lithuania

Currently assigned to LY-MAU · AIRBUS A-320

Hex
503D4D
Octal
24036515
Decimal
5,258,573
Country
LT
Tail
LY-MAU
Type
A320
Broadcasting now · callsign SYR272 · 35,975 ft
Flights observed
150
Distinct callsigns
20
Country
LT
Last broadcast
4d ago

Current position

503D4D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 503D4D falls within the block assigned to Lithuania (LT) by ICAO Annex 10, Volume III. Every aircraft registered in Lithuania 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
SYR272 - 11 2026-07-25
SYR271 - 11 2026-07-25
CFG003 - 7 2026-06-27
HST2354 - 3 2026-06-09
MAC9901 Malta Air Charter 2 2026-05-20
KRP462 - 2 2026-06-08
KRP461 - 2 2026-06-05
HST2392 - 2 2026-06-03
HST2391 - 2 2026-06-03
HST2356 - 2 2026-06-03
HST2355 - 2 2026-06-03
HST2353 - 2 2026-06-09
HST2352 - 2 2026-06-04
HST2351 - 2 2026-06-04
HST2322 - 2 2026-06-09
HST2321 - 2 2026-06-09
CFG9XK Condor Flugdienst 2 2026-06-26
CFG9VA Condor Flugdienst 2 2026-06-25
CFG9JX - 2 2026-06-26
CFG8HF Condor Flugdienst 2 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 SYR272 - Jul 25, 17:55 UTCJul 25, 22:25 UTC4h 30m
2026-07-25 SYR271 - Jul 25, 11:50 UTCJul 25, 15:40 UTC3h 50m
2026-07-24 SYR272 - Jul 24, 16:05 UTCJul 24, 20:35 UTC4h 30m
2026-07-24 SYR271 - Jul 24, 10:40 UTCJul 24, 14:35 UTC3h 55m
2026-07-20 SYR272 - Jul 20, 15:45 UTCJul 20, 20:15 UTC4h 30m
2026-07-20 SYR271 - Jul 20, 10:05 UTCJul 20, 14:00 UTC3h 55m
2026-07-18 SYR272 - Jul 18, 15:00 UTCJul 18, 19:20 UTC4h 20m
2026-07-18 SYR271 - Jul 18, 09:00 UTCJul 18, 12:55 UTC3h 55m
2026-07-16 SYR272 - Jul 16, 15:00 UTCJul 16, 19:40 UTC4h 40m
2026-07-16 SYR271 - Jul 16, 09:25 UTCJul 16, 13:20 UTC3h 55m
2026-07-13 SYR272 - Jul 13, 15:45 UTCJul 13, 20:20 UTC4h 35m
2026-07-13 SYR271 - Jul 13, 10:20 UTCJul 13, 14:15 UTC3h 55m
2026-07-11 SYR272 DAM → AMS Jul 11, 15:50 UTCJul 11, 20:25 UTC4h 35m
2026-07-11 SYR271 - Jul 11, 10:15 UTCJul 11, 14:20 UTC4h 5m
2026-07-09 SYR272 - Jul 9, 15:45 UTCJul 9, 20:25 UTC4h 40m
2026-07-09 SYR271 - Jul 9, 10:10 UTCJul 9, 14:00 UTC3h 50m
2026-07-06 SYR272 - Jul 6, 14:50 UTCJul 6, 19:30 UTC4h 40m
2026-07-06 SYR271 - Jul 6, 09:05 UTCJul 6, 12:55 UTC3h 50m
2026-07-04 SYR272 - Jul 4, 14:20 UTCJul 4, 19:10 UTC4h 50m
2026-07-04 SYR271 - Jul 4, 08:40 UTCJul 4, 12:25 UTC3h 45m
2026-07-02 SYR272 DAM → AMS Jul 2, 15:45 UTCJul 2, 20:20 UTC4h 35m
2026-07-02 SYR271 - Jul 2, 10:00 UTCJul 2, 14:05 UTC4h 5m
2026-07-01 HST9031 VNO → AMS Jul 1, 11:25 UTCJul 1, 13:30 UTC2h 5m
2026-06-28 CFG4800 - Jun 28, 10:19 UTCJun 28, 11:45 UTC1h 25m
2026-06-28 CFG1EK RHO → BER Jun 28, 06:15 UTCJun 28, 08:29 UTC2h 15m
2026-06-28 CFG3UF FMO → PMI Jun 28, 02:44 UTCJun 28, 04:50 UTC2h 5m
2026-06-27 CFG4EM - Jun 27, 23:14 UTCJun 28, 01:10 UTC1h 55m
2026-06-27 CFG8HF FRA → HER Jun 27, 19:00 UTCJun 27, 21:10 UTC2h 10m
2026-06-27 CFG003 HAJ → HAM Jun 27, 17:20 UTCJun 27, 17:44 UTC25m
2026-06-27 CFG003 HAM → HAJ Jun 27, 04:59 UTCJun 27, 16:10 UTC11h 10m
2026-06-26 CFG9JX - Jun 26, 17:09 UTCJun 26, 20:59 UTC3h 50m
2026-06-26 CFG9XK LPA → HAM Jun 26, 10:30 UTCJun 26, 15:15 UTC4h 45m
2026-06-26 CFG5KD PMI → HAM Jun 26, 06:09 UTCJun 26, 08:40 UTC2h 30m
2026-06-26 CFG7YK HER → MUC Jun 26, 02:40 UTCJun 26, 04:39 UTC2h 0m
2026-06-25 CFG7HD - Jun 25, 20:59 UTCJun 25, 23:05 UTC2h 5m
2026-06-25 CFG9VA HAM → PMI Jun 25, 17:05 UTCJun 25, 19:20 UTC2h 15m
2026-06-25 CFG003 HAM → HAM Jun 25, 04:54 UTCJun 25, 15:24 UTC10h 30m
2026-06-24 CFG9WC TFS → HAM Jun 24, 16:45 UTCJun 24, 21:04 UTC4h 20m
2026-06-24 CFG9VL HAM → TFS Jun 24, 10:30 UTCJun 24, 14:00 UTC3h 30m
2026-06-24 CFG7DW - Jun 24, 06:20 UTCJun 24, 08:49 UTC2h 30m
2026-06-24 CFG3XR - Jun 24, 02:40 UTCJun 24, 04:34 UTC1h 55m
2026-06-23 CFG2PV PMI → FMO Jun 23, 20:40 UTCJun 23, 22:49 UTC2h 10m
2026-06-23 CFG2TU HAM → PMI Jun 23, 17:04 UTCJun 23, 19:15 UTC2h 10m
2026-06-23 CFG003 HAM → HAM Jun 23, 04:55 UTCJun 23, 15:44 UTC10h 50m
2026-06-22 CFG5ED - Jun 22, 14:05 UTCJun 22, 20:04 UTC6h 0m
2026-06-22 CFG5EH HAM → FUE Jun 22, 10:00 UTCJun 22, 13:29 UTC3h 30m
2026-06-22 CFG9VZ PMI → HAM Jun 22, 06:10 UTCJun 22, 08:35 UTC2h 25m
2026-06-22 CFG1RV FRA → BER Jun 22, 02:54 UTCJun 22, 04:54 UTC2h 0m
2026-06-21 CFG3UY PMI → FMO Jun 21, 21:29 UTCJun 21, 23:40 UTC2h 10m
2026-06-21 CFG4WL HAM → PMI Jun 21, 17:45 UTCJun 21, 20:09 UTC2h 25m

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.

Prefer a tail-number view? See the LY-MAU page for operator, model, and routing details .

Mode-S 503D4D frequently asked

What is Mode-S code 503D4D?
503D4D is an ICAO 24-bit transponder address. Allocated to Lithuania. Assigned to LY-MAU.
Where is Mode-S 503D4D registered?
Mode-S code 503D4D is allocated to Lithuania (LT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 503D4D broadcasting right now?
Yes. Mode-S 503D4D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 503D4D, octal 24036515, decimal 5,258,573.
What flights does 503D4D operate?
Mode-S 503D4D has broadcast 20 distinct callsigns, including SYR272, SYR271, CFG003, HST2354, MAC9901.