Apparatus

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sensors Mode-S transponder

4BA0E4

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-HGD · AIRBUS HELICOPTERS EC-135/635

Hex
4BA0E4
Octal
22720344
Decimal
4,956,388
Country
TR
Tail
TC-HGD
Type
EC35
No current signal · last broadcast 28d ago
Flights observed
23
Distinct callsigns
1
Country
TR
Last broadcast
28d ago

Last known position

Most recent position reported by Mode-S 4BA0E4.

Country allocation

The ICAO 24-bit address 4BA0E4 falls within the block assigned to Turkey (TR) by ICAO Annex 10, Volume III. Every aircraft registered in Turkey 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 1 distinct

Callsign Airline Flights Last seen
TCHGD - 23 2026-07-05

Recent flights last 23

DateFlightRouteTakeoffLandingDuration
2026-07-05 TCHGD ANK → ANK Jul 5, 15:25 UTCJul 5, 15:40 UTC15m
2026-07-03 TCHGD - Jul 3, 08:10 UTCJul 3, 08:20 UTC10m
2026-07-02 TCHGD - Jul 2, 10:00 UTCJul 2, 10:10 UTC10m
2026-07-01 TCHGD - Jul 1, 09:30 UTCJul 1, 09:50 UTC20m
2026-07-01 TCHGD ANK → ANK Jul 1, 06:25 UTCJul 1, 06:40 UTC15m
2026-07-01 TCHGD - Jul 1, 05:35 UTCJul 1, 05:45 UTC10m
2026-06-30 TCHGD - Jun 30, 13:50 UTCJun 30, 14:20 UTC30m
2026-06-30 TCHGD - Jun 30, 12:50 UTCJun 30, 13:00 UTC10m
2026-06-29 TCHGD - Jun 29, 06:24 UTCJun 29, 06:40 UTC15m
2026-06-29 TCHGD ANK → ANK Jun 29, 05:04 UTCJun 29, 05:09 UTC5m
2026-06-27 TCHGD ANK → ANK Jun 27, 11:04 UTCJun 27, 11:09 UTC5m
2026-06-27 TCHGD - Jun 27, 04:09 UTCJun 27, 04:15 UTC5m
2026-06-26 TCHGD - Jun 26, 13:24 UTCJun 26, 13:34 UTC10m
2026-06-24 TCHGD - Jun 24, 13:00 UTCJun 24, 13:14 UTC15m
2026-06-24 TCHGD - Jun 24, 09:00 UTCJun 24, 09:09 UTC10m
2026-06-23 TCHGD ANK → ANK Jun 23, 12:55 UTCJun 23, 13:05 UTC10m
2026-06-22 TCHGD - Jun 22, 15:24 UTCJun 22, 15:35 UTC10m
2026-06-22 TCHGD ANK → ANK Jun 22, 14:34 UTCJun 22, 14:45 UTC10m
2026-06-22 TCHGD - Jun 22, 04:15 UTCJun 22, 04:24 UTC10m
2026-06-20 TCHGD - Jun 20, 10:55 UTCJun 20, 11:14 UTC20m
2026-06-17 TCHGD ANK → ANK Jun 17, 18:00 UTCJun 17, 18:45 UTC45m
2026-06-17 TCHGD - Jun 17, 08:30 UTCJun 17, 08:45 UTC15m
2026-06-17 TCHGD - Jun 17, 06:45 UTCJun 17, 06:55 UTC10m

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 TC-HGD page for operator, model, and routing details .

Mode-S 4BA0E4 frequently asked

What is Mode-S code 4BA0E4?
4BA0E4 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-HGD.
Where is Mode-S 4BA0E4 registered?
Mode-S code 4BA0E4 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA0E4 broadcasting right now?
No active broadcast right now. Last signal was 28d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA0E4, octal 22720344, decimal 4,956,388.
What flights does 4BA0E4 operate?
Mode-S 4BA0E4 has broadcast 1 distinct callsign, including TCHGD.