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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 Jul 26, 18:15 UTC
Flights observed
728
Distinct callsigns
20
Country
IT
Last broadcast
Jul 26, 18:15 UTC

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
DLA5CT - 9 2026-07-17
DLH3RT Lufthansa 8 2026-06-22
DLA7TP - 8 2026-07-15
DLA6MH - 8 2026-07-09
DLA5YX - 8 2026-07-15
DLA5RK - 8 2026-07-16
DLA55M - 8 2026-07-15
DLA4UX - 8 2026-07-17
DLA3TW - 8 2026-07-17
AUA550J - 8 2026-07-18
AUA544U Austrian Airlines 8 2026-07-18
AUA543 - 8 2026-07-18
DLH6TT - 7 2026-07-17
DLH5XA - 7 2026-07-17
DLH3UT - 7 2026-07-10
DLH3PL Lufthansa 7 2026-06-22
DLH04E - 7 2026-07-06
DLH03M - 7 2026-07-06
DLA9LK - 7 2026-07-17
DLA7JH - 7 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLA3RM - Jul 26, 17:35 UTCJul 26, 18:15 UTC40m
2026-07-26 DLA5XM TRN → MUC Jul 26, 15:40 UTCJul 26, 16:40 UTC1h 0m
2026-07-26 DLA3LA - Jul 26, 13:45 UTCJul 26, 14:35 UTC50m
2026-07-26 DLA7KV LIN → MUC Jul 26, 11:25 UTCJul 26, 12:55 UTC1h 30m
2026-07-26 DLA7AM VCE → MUC Jul 26, 09:05 UTCJul 26, 10:20 UTC1h 15m
2026-07-26 DLA8RL WRO → FRA Jul 26, 07:20 UTCJul 26, 08:10 UTC50m
2026-07-25 DLA8UW FRA → BSL Jul 25, 19:15 UTCJul 25, 20:30 UTC1h 15m
2026-07-25 DLH7PJ BHX → FRA Jul 25, 13:10 UTCJul 25, 14:05 UTC55m
2026-07-25 DLH8FF STR → FRA Jul 25, 11:10 UTCJul 25, 12:05 UTC55m
2026-07-25 DLH5XT LEJ → FRA Jul 25, 08:50 UTCJul 25, 09:25 UTC35m
2026-07-25 DLH152 FRA → LEJ Jul 25, 07:10 UTCJul 25, 07:45 UTC35m
2026-07-25 DLH281 LIN → FRA Jul 25, 04:55 UTCJul 25, 05:55 UTC1h 0m
2026-07-24 DLH3YP FRA → BHX Jul 24, 19:15 UTCJul 24, 20:10 UTC55m
2026-07-24 DLH4RF STR → FRA Jul 24, 16:50 UTCJul 24, 18:00 UTC1h 10m
2026-07-24 DLH9MF MUC → OTP Jul 24, 14:40 UTCJul 24, 15:45 UTC1h 5m
2026-07-24 DLH1TX ATH → FRA Jul 24, 13:00 UTCJul 24, 13:40 UTC40m
2026-07-24 DLH4EJ FRA → BRE Jul 24, 11:20 UTCJul 24, 11:55 UTC35m
2026-07-24 DLA6ME LUX → FRA Jul 24, 09:25 UTCJul 24, 09:50 UTC25m
2026-07-24 DLA2LL FRA → LUX Jul 24, 07:45 UTCJul 24, 08:15 UTC30m
2026-07-24 DLA8UT VRN → FRA Jul 24, 04:55 UTCJul 24, 05:55 UTC1h 0m
2026-07-23 DLA5PW - Jul 23, 19:35 UTCJul 23, 20:30 UTC55m
2026-07-23 DLH7PJ BHX → FRA Jul 23, 13:00 UTCJul 23, 14:00 UTC1h 0m
2026-07-23 DLH8FF STR → FRA Jul 23, 10:55 UTCJul 23, 11:55 UTC1h 0m
2026-07-23 DLH9VL FRA → SVG Jul 23, 08:55 UTCJul 23, 09:40 UTC45m
2026-07-23 DLH2HW FRA → AMS Jul 23, 07:15 UTCJul 23, 08:05 UTC50m
2026-07-23 DLH281 LIN → FRA Jul 23, 05:05 UTCJul 23, 06:10 UTC1h 5m
2026-07-22 DLH3YP FRA → BHX Jul 22, 19:20 UTCJul 22, 20:10 UTC50m
2026-07-22 DLA1ER - Jul 22, 17:05 UTCJul 22, 18:20 UTC1h 15m
2026-07-22 DLA3EN - Jul 22, 14:45 UTCJul 22, 15:50 UTC1h 5m
2026-07-22 DLA7TT - Jul 22, 13:10 UTCJul 22, 13:40 UTC30m
2026-07-22 DLA3AJ - Jul 22, 11:50 UTCJul 22, 12:15 UTC25m
2026-07-22 DLA3HR - Jul 22, 11:10 UTCJul 22, 11:15 UTC5m
2026-07-22 DLH4TP FRA → BRU Jul 22, 04:30 UTCJul 22, 05:25 UTC55m
2026-07-21 DLH5JL - Jul 21, 18:50 UTCJul 21, 19:55 UTC1h 5m
2026-07-21 DLA8881 - Jul 21, 13:30 UTCJul 21, 14:45 UTC1h 15m
2026-07-21 DLA8880 FRA → BLQ Jul 21, 11:30 UTCJul 21, 12:35 UTC1h 5m
2026-07-21 DLA7CM - Jul 21, 08:30 UTCJul 21, 09:55 UTC1h 25m
2026-07-21 DLA9HT MUC → BRI Jul 21, 06:20 UTCJul 21, 07:30 UTC1h 10m
2026-07-21 DLA8FM LUX → FRA Jul 21, 04:20 UTCJul 21, 04:50 UTC30m
2026-07-20 DLA3AE FRA → LUX Jul 20, 20:15 UTCJul 20, 20:45 UTC30m
2026-07-20 DLA8WU LUX → FRA Jul 20, 17:30 UTCJul 20, 17:55 UTC25m
2026-07-20 DLA7MT FRA → LUX Jul 20, 16:10 UTCJul 20, 16:35 UTC25m
2026-07-20 DLA8XN VRN → FRA Jul 20, 14:05 UTCJul 20, 15:10 UTC1h 5m
2026-07-20 DLA6MF - Jul 20, 11:45 UTCJul 20, 12:40 UTC55m
2026-07-20 DLH271 LIN → FRA Jul 20, 09:20 UTCJul 20, 10:15 UTC55m
2026-07-20 DLH1HH FRA → LIN Jul 20, 07:25 UTCJul 20, 08:15 UTC50m
2026-07-19 DLH2HU LIN → FRA Jul 19, 16:55 UTCJul 19, 17:50 UTC55m
2026-07-19 DLH276 FRA → LIN Jul 19, 15:00 UTCJul 19, 15:55 UTC55m
2026-07-19 DLH1TX BSL → FRA Jul 19, 13:20 UTCJul 19, 13:55 UTC35m
2026-07-19 DLH4EJ FRA → BSL Jul 19, 11:35 UTCJul 19, 12:15 UTC40m

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 Jul 26, 18:15 UTC.
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 DLA5CT, DLH3RT, DLA7TP, DLA6MH, DLA5YX.