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sensors Mode-S transponder

4BCDE1

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SOA · BOEING 737-800

Hex
4BCDE1
Octal
22746741
Decimal
4,967,905
Country
TR
Tail
TC-SOA
Type
B738
No current signal · last broadcast 6h ago
Flights observed
346
Distinct callsigns
20
Country
TR
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4BCDE1.

Country allocation

The ICAO 24-bit address 4BCDE1 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 20 distinct

Callsign Airline Flights Last seen
SXS7RR SunExpress 7 2026-05-28
SXS5GX SunExpress 7 2026-05-28
SXS7KV SunExpress 6 2026-05-20
SXS8BU - 5 2026-07-10
SXS5LU SunExpress 5 2026-05-18
SXS4HL - 5 2026-07-10
SXS8WK SunExpress 4 2026-05-09
SXS7BN SunExpress 4 2026-05-18
SXS6ZL SunExpress 4 2026-05-28
SXS6A - 4 2026-06-19
SXS66D SunExpress 4 2026-06-18
SXS4Y SunExpress 4 2026-06-19
SXS4UV SunExpress 4 2026-05-09
SXS1WF SunExpress 4 2026-06-18
SXS9SE SunExpress 3 2026-06-08
SXS7LM - 3 2026-07-09
SXS7GW SunExpress 3 2026-06-20
SXS7GP - 3 2026-05-13
SXS7AM SunExpress 3 2026-06-14
SXS5WQ - 3 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SXS8ME - Jul 17, 20:10 UTCJul 17, 22:25 UTC2h 15m
2026-07-17 SXS1323 AMS → ASR Jul 17, 09:35 UTCJul 17, 18:34 UTC9h 0m
2026-07-16 SXS1322 - Jul 16, 20:25 UTCJul 17, 07:50 UTC11h 25m
2026-07-16 SXS6RK - Jul 16, 15:35 UTCJul 16, 18:50 UTC3h 15m
2026-07-16 SXS225 - Jul 16, 12:55 UTCJul 16, 14:10 UTC1h 15m
2026-07-16 SXS224 - Jul 16, 10:10 UTCJul 16, 11:15 UTC1h 5m
2026-07-16 SXS8LW - Jul 16, 05:55 UTCJul 16, 08:35 UTC2h 40m
2026-07-16 SXS4SB AYT → STR Jul 16, 01:20 UTCJul 16, 04:40 UTC3h 20m
2026-07-15 SXS98G - Jul 15, 18:15 UTCJul 15, 21:15 UTC3h 0m
2026-07-15 SXS7QF - Jul 15, 12:20 UTCJul 15, 15:55 UTC3h 35m
2026-07-15 SXS2 - Jul 15, 06:55 UTCJul 15, 09:45 UTC2h 50m
2026-07-15 SXS2 FRA → FRA Jul 15, 06:40 UTCJul 15, 06:45 UTC5m
2026-07-14 SXS4HT FRA → FRA Jul 14, 19:15 UTCJul 15, 04:35 UTC9h 19m
2026-07-14 SXS1 AYT → FRA Jul 14, 14:05 UTCJul 14, 17:40 UTC3h 35m
2026-07-14 SXS4RN - Jul 14, 09:40 UTCJul 14, 12:45 UTC3h 5m
2026-07-14 SXS3RT - Jul 14, 04:55 UTCJul 14, 08:30 UTC3h 35m
2026-07-13 SXS8RQ BRS → AYT Jul 13, 18:30 UTCJul 13, 22:10 UTC3h 40m
2026-07-13 SXS4JV - Jul 13, 12:25 UTCJul 13, 16:45 UTC4h 20m
2026-07-13 SXS2HQ - Jul 13, 07:45 UTCJul 13, 10:55 UTC3h 10m
2026-07-13 SXS51C - Jul 13, 02:40 UTCJul 13, 06:20 UTC3h 40m
2026-07-12 SXS4TF BTS → AYT Jul 12, 22:30 UTCJul 13, 00:40 UTC2h 10m
2026-07-12 SXS6PR - Jul 12, 18:50 UTCJul 12, 21:10 UTC2h 20m
2026-07-12 SXS1ZM STR → AYT Jul 12, 14:30 UTCJul 12, 17:20 UTC2h 50m
2026-07-12 SXS3ZA AYT → STR Jul 12, 10:15 UTCJul 12, 13:30 UTC3h 15m
2026-07-12 SXS46A STR → AYT Jul 12, 06:05 UTCJul 12, 08:45 UTC2h 40m
2026-07-12 SXS6UY - Jul 12, 03:20 UTCJul 12, 04:25 UTC1h 5m
2026-07-12 SXS6UY - Jul 12, 01:15 UTCJul 12, 01:25 UTC10m
2026-07-11 SXS9NU - Jul 11, 20:15 UTCJul 11, 22:30 UTC2h 15m
2026-07-11 SXS6RK - Jul 11, 15:40 UTCJul 11, 18:50 UTC3h 10m
2026-07-11 SXS6AL - Jul 11, 11:05 UTCJul 11, 14:00 UTC2h 55m
2026-07-11 SXS8JX - Jul 11, 06:50 UTCJul 11, 10:05 UTC3h 15m
2026-07-11 SXS6XR - Jul 11, 00:10 UTCJul 11, 03:30 UTC3h 20m
2026-07-10 SXS6BM - Jul 10, 19:20 UTCJul 10, 22:55 UTC3h 35m
2026-07-10 SXS3WT - Jul 10, 17:15 UTCJul 10, 18:10 UTC55m
2026-07-10 SXS8BU - Jul 10, 13:10 UTCJul 10, 15:15 UTC2h 5m
2026-07-10 SXS4HL - Jul 10, 09:15 UTCJul 10, 12:00 UTC2h 45m
2026-07-09 SXS4DT - Jul 9, 18:45 UTCJul 9, 20:25 UTC1h 40m
2026-07-09 SXS2FX - Jul 9, 14:45 UTCJul 9, 17:00 UTC2h 15m
2026-07-09 SXS1XE - Jul 9, 09:55 UTCJul 9, 10:25 UTC30m
2026-07-09 SXS3WT - Jul 9, 08:05 UTCJul 9, 08:50 UTC45m
2026-07-09 SXS5Y - Jul 9, 05:40 UTCJul 9, 06:55 UTC1h 15m
2026-07-09 SXS7LM - Jul 9, 03:20 UTCJul 9, 04:25 UTC1h 5m
2026-07-08 SXS5FR - Jul 8, 22:55 UTCJul 9, 01:20 UTC2h 25m
2026-07-08 SXS9SB - Jul 8, 18:15 UTCJul 8, 21:20 UTC3h 5m
2026-07-08 SXS5XK - Jul 8, 03:55 UTCJul 8, 06:20 UTC2h 25m
2026-07-07 SXS5JV FRA → HAJ Jul 7, 16:20 UTCJul 8, 02:40 UTC10h 20m
2026-07-07 SXS6AT HAJ → FRA Jul 7, 06:05 UTCJul 7, 14:10 UTC8h 5m
2026-07-06 SXS4GT - Jul 6, 19:05 UTCJul 7, 04:30 UTC9h 25m
2026-07-06 SXS62Q - Jul 6, 14:05 UTCJul 6, 17:40 UTC3h 35m
2026-07-06 SXS78U - Jul 6, 09:10 UTCJul 6, 11:50 UTC2h 40m

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-SOA page for operator, model, and routing details .

Mode-S 4BCDE1 frequently asked

What is Mode-S code 4BCDE1?
4BCDE1 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SOA.
Where is Mode-S 4BCDE1 registered?
Mode-S code 4BCDE1 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDE1 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDE1, octal 22746741, decimal 4,967,905.
What flights does 4BCDE1 operate?
Mode-S 4BCDE1 has broadcast 20 distinct callsigns, including SXS7RR, SXS5GX, SXS7KV, SXS8BU, SXS5LU.