Apparatus

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sensors Mode-S transponder

300557

ICAO 24-bit transponder address · allocated to Italy

Currently assigned to I-ADJQ · EMBRAER ERJ-190-200

Hex
300557
Octal
14002527
Decimal
3,147,095
Country
IT
Tail
I-ADJQ
Type
E195
No current signal · last broadcast 1h ago
Flights observed
643
Distinct callsigns
20
Country
IT
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 300557.

Country allocation

The ICAO 24-bit address 300557 falls within the block assigned to Italy (IT) by ICAO Annex 10, Volume III. Every aircraft registered in Italy 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
DLH3RT Lufthansa 8 2026-06-22
DLA6MH - 8 2026-07-09
DLA5CT - 8 2026-07-12
DLH3UT - 7 2026-07-10
DLH3PL Lufthansa 7 2026-06-22
DLH04E - 7 2026-07-06
DLH03M - 7 2026-07-06
DLA7TP - 7 2026-07-06
DLA7JH - 7 2026-07-09
DLA5YX Air Dolomiti 7 2026-06-22
DLA5RK - 7 2026-06-23
DLA55M - 7 2026-07-11
DLA2VX - 7 2026-07-08
AUA550J - 7 2026-07-14
AUA549Y - 7 2026-07-14
AUA544U Austrian Airlines 7 2026-07-14
AUA543 - 7 2026-07-14
AUA518 Austrian Airlines 7 2026-07-14
DLH8FA - 6 2026-06-23
DLH836 Lufthansa 6 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AUA549Y VIE → VCE Jul 14, 19:25 UTCJul 14, 20:10 UTC45m
2026-07-14 AUA518 BLQ → VIE Jul 14, 17:40 UTCJul 14, 18:30 UTC50m
2026-07-14 AUA51SN VIE → BLQ Jul 14, 15:20 UTCJul 14, 16:20 UTC1h 0m
2026-07-14 AUA544U VCE → VIE Jul 14, 13:05 UTCJul 14, 13:55 UTC50m
2026-07-14 AUA543 VIE → VCE Jul 14, 11:10 UTCJul 14, 12:05 UTC55m
2026-07-14 AUA63N - Jul 14, 09:30 UTCJul 14, 10:00 UTC30m
2026-07-14 AUA63N VIE → BUD Jul 14, 08:00 UTCJul 14, 08:30 UTC30m
2026-07-14 AUA550J - Jul 14, 05:10 UTCJul 14, 05:55 UTC45m
2026-07-13 AUA549Y VIE → VCE Jul 13, 19:10 UTCJul 13, 20:10 UTC1h 0m
2026-07-13 AUA518 BLQ → VIE Jul 13, 17:25 UTCJul 13, 18:15 UTC50m
2026-07-13 AUA51SN VIE → BLQ Jul 13, 15:50 UTCJul 13, 16:45 UTC55m
2026-07-13 AUA544U VCE → VIE Jul 13, 14:30 UTCJul 13, 15:15 UTC45m
2026-07-13 AUA543 - Jul 13, 11:10 UTCJul 13, 12:05 UTC55m
2026-07-13 AUA51U - Jul 13, 09:00 UTCJul 13, 10:00 UTC1h 0m
2026-07-13 AUA53U - Jul 13, 07:01 UTCJul 13, 08:05 UTC1h 5m
2026-07-13 AUA550J VCE → VIE Jul 13, 05:01 UTCJul 13, 05:50 UTC50m
2026-07-12 DLA5CT - Jul 12, 19:35 UTCJul 12, 20:15 UTC40m
2026-07-12 DLA8VT - Jul 12, 15:35 UTCJul 12, 16:30 UTC55m
2026-07-12 DLA5LR MUC → FLR Jul 12, 13:50 UTCJul 12, 14:45 UTC55m
2026-07-12 DLA5HH FLR → MUC Jul 12, 11:35 UTCJul 12, 12:30 UTC55m
2026-07-11 DLA1TA MUC → FLR Jul 11, 09:55 UTCJul 11, 10:55 UTC1h 0m
2026-07-11 DLA55M - Jul 11, 08:01 UTCJul 11, 08:40 UTC40m
2026-07-11 DLA66U MUC → GRZ Jul 11, 06:25 UTCJul 11, 07:05 UTC40m
2026-07-11 DLH6RJ TRN → MUC Jul 11, 04:15 UTCJul 11, 05:05 UTC50m
2026-07-10 DLH3UT MUC → TRN Jul 10, 20:15 UTCJul 10, 21:10 UTC55m
2026-07-10 DLA8VT FLR → MUC Jul 10, 15:25 UTCJul 10, 16:25 UTC1h 0m
2026-07-10 DLA5LR MUC → FLR Jul 10, 13:45 UTCJul 10, 14:35 UTC50m
2026-07-10 DLA4UX - Jul 10, 11:45 UTCJul 10, 12:30 UTC45m
2026-07-10 DLA3TW - Jul 10, 10:05 UTCJul 10, 10:45 UTC40m
2026-07-10 DLA5RW - Jul 10, 07:55 UTCJul 10, 08:50 UTC55m
2026-07-10 DLA2RP MUC → FLR Jul 10, 06:05 UTCJul 10, 06:55 UTC50m
2026-07-10 DLH4JT - Jul 10, 04:10 UTCJul 10, 05:05 UTC55m
2026-07-09 DLH9TL - Jul 9, 20:10 UTCJul 9, 21:10 UTC1h 0m
2026-07-09 DLH6PT - Jul 9, 18:25 UTCJul 9, 19:10 UTC45m
2026-07-09 DLH2VL - Jul 9, 16:40 UTCJul 9, 17:30 UTC50m
2026-07-09 DLA5KE - Jul 9, 12:00 UTCJul 9, 12:50 UTC50m
2026-07-09 DLA8LW - Jul 9, 10:00 UTCJul 9, 10:35 UTC35m
2026-07-09 DLA6MH - Jul 9, 08:00 UTCJul 9, 09:00 UTC1h 0m
2026-07-09 DLA7JH - Jul 9, 06:15 UTCJul 9, 07:00 UTC45m
2026-07-09 DLA3TN MXP → MUC Jul 9, 04:20 UTCJul 9, 05:20 UTC1h 0m
2026-07-08 DLA2VX - Jul 8, 20:10 UTCJul 8, 20:55 UTC45m
2026-07-08 DLA2KX - Jul 8, 15:30 UTCJul 8, 16:30 UTC1h 0m
2026-07-08 DLA1YC - Jul 8, 13:40 UTCJul 8, 14:30 UTC50m
2026-07-08 DLA4UX - Jul 8, 11:45 UTCJul 8, 12:40 UTC55m
2026-07-08 DLA3TW - Jul 8, 10:05 UTCJul 8, 10:40 UTC35m
2026-07-08 DLA5UP - Jul 8, 05:35 UTCJul 8, 06:25 UTC50m
2026-07-07 DLA3RM - Jul 7, 18:20 UTCJul 7, 19:00 UTC40m
2026-07-07 DLA1WT KRK → MUC Jul 7, 16:15 UTCJul 7, 17:15 UTC1h 0m
2026-07-07 DLA4UC - Jul 7, 14:10 UTCJul 7, 15:15 UTC1h 5m
2026-07-07 DLA3MJ MXP → MUC Jul 7, 11:45 UTCJul 7, 12:45 UTC1h 0m

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 I-ADJQ page for operator, model, and routing details .

Mode-S 300557 frequently asked

What is Mode-S code 300557?
300557 is an ICAO 24-bit transponder address. Allocated to Italy. Assigned to I-ADJQ.
Where is Mode-S 300557 registered?
Mode-S code 300557 is allocated to Italy (IT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 300557 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 300557, octal 14002527, decimal 3,147,095.
What flights does 300557 operate?
Mode-S 300557 has broadcast 20 distinct callsigns, including DLH3RT, DLA6MH, DLA5CT, DLH3UT, DLH3PL.