Apparatus

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sensors Mode-S transponder

4BB1E1

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-LOA · AIRBUS A-330-300

Hex
4BB1E1
Octal
22730741
Decimal
4,960,737
Country
TR
Tail
TC-LOA
Type
A333
Broadcasting now · callsign THY2JK · 38,000 ft
Flights observed
231
Distinct callsigns
20
Country
TR
Last broadcast
1d ago

Current position

4BB1E1 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB1E1 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
THY9NL Turkish Airlines 8 2026-07-26
THY1SX Turkish Airlines 8 2026-07-26
THY8LG Turkish Airlines 7 2026-07-21
THY351 - 6 2026-07-11
THY7KT Turkish Airlines 5 2026-07-21
THY3JL Turkish Airlines 5 2026-07-23
THY2DJ Turkish Airlines 5 2026-07-19
THY67F Turkish Airlines 4 2026-05-19
THY5LB Turkish Airlines 4 2026-07-23
THY4EN Turkish Airlines 4 2026-07-24
THY4DL Turkish Airlines 4 2026-07-26
THY2HG - 4 2026-07-16
THY1KQ Turkish Airlines 4 2026-07-23
THY1AK Turkish Airlines 4 2026-05-24
THY1896 - 4 2026-07-16
THY115 Turkish Airlines 4 2026-06-02
THY9DC Turkish Airlines 3 2026-06-17
THY5HS Turkish Airlines 3 2026-05-26
THY5291 - 3 2026-05-04
THY51Z - 3 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY4DL IST → ISB Jul 26, 18:05 UTCJul 26, 20:05 UTC2h 0m
2026-07-26 THY9NL CLJ → IST Jul 26, 12:40 UTCJul 26, 15:25 UTC2h 45m
2026-07-26 THY1SX IST → CDG Jul 26, 07:30 UTCJul 26, 10:35 UTC3h 5m
2026-07-25 THY6TR VIE → IST Jul 25, 18:10 UTCJul 25, 19:50 UTC1h 40m
2026-07-25 THY2XD BJV → IST Jul 25, 14:35 UTCJul 25, 16:25 UTC1h 50m
2026-07-25 THY6EN IST → KSY Jul 25, 08:50 UTCJul 25, 11:20 UTC2h 30m
2026-07-25 THY4VH ADB → IST Jul 25, 04:50 UTCJul 25, 07:05 UTC2h 15m
2026-07-24 THY4RN ESB → IST Jul 24, 22:00 UTCJul 25, 01:05 UTC3h 5m
2026-07-24 THY9PG CDG → SAW Jul 24, 16:40 UTCJul 24, 19:55 UTC3h 15m
2026-07-24 THY1KD VIE → IST Jul 24, 09:40 UTCJul 24, 11:25 UTC1h 45m
2026-07-24 THY7KF IST → VIE Jul 24, 05:25 UTCJul 24, 07:10 UTC1h 45m
2026-07-24 THY4EN BEY → IST Jul 24, 01:10 UTCJul 24, 02:35 UTC1h 25m
2026-07-23 THY5LB IST → BEY Jul 23, 22:10 UTCJul 23, 23:20 UTC1h 10m
2026-07-23 THY1KQ BLQ → IST Jul 23, 10:35 UTCJul 23, 13:10 UTC2h 35m
2026-07-23 THY3JL MAN → IST Jul 23, 05:20 UTCJul 23, 08:35 UTC3h 15m
2026-07-21 THY7KT IST → KHI Jul 21, 18:30 UTCJul 22, 05:25 UTC10h 55m
2026-07-21 THY2TG - Jul 21, 13:45 UTCJul 21, 16:25 UTC2h 40m
2026-07-21 THY6BZ IST → AMS Jul 21, 08:20 UTCJul 21, 11:20 UTC3h 0m
2026-07-21 THY8LG ISB → IST Jul 21, 06:05 UTCJul 21, 06:20 UTC15m
2026-07-20 THY4DL - Jul 20, 17:55 UTCJul 21, 05:30 UTC11h 35m
2026-07-20 THY9UT IST → BUD Jul 20, 13:25 UTCJul 20, 14:30 UTC1h 5m
2026-07-20 THY4QS IST → HTY Jul 20, 10:50 UTCJul 20, 11:35 UTC45m
2026-07-19 THY2DJ KHI → IST Jul 19, 19:50 UTCJul 20, 07:10 UTC11h 20m
2026-07-19 THY7KT - Jul 19, 18:20 UTCJul 19, 18:45 UTC25m
2026-07-19 THY9NL CLJ → IST Jul 19, 13:20 UTCJul 19, 16:05 UTC2h 45m
2026-07-19 THY1SX IST → CDG Jul 19, 08:20 UTCJul 19, 11:30 UTC3h 10m
2026-07-19 THY8LG ISB → IST Jul 19, 05:40 UTCJul 19, 06:00 UTC20m
2026-07-18 THY8LG ISB → IST Jul 18, 18:15 UTCJul 19, 05:05 UTC10h 50m
2026-07-18 THY2TG - Jul 18, 13:15 UTCJul 18, 16:00 UTC2h 45m
2026-07-18 THY6BZ IST → AMS Jul 18, 08:10 UTCJul 18, 11:15 UTC3h 5m
2026-07-18 THY8LG ISB → IST Jul 18, 05:35 UTCJul 18, 05:55 UTC20m
2026-07-17 THY4DL - Jul 17, 18:05 UTCJul 18, 05:00 UTC10h 56m
2026-07-17 THY9NL - Jul 17, 12:50 UTCJul 17, 15:35 UTC2h 45m
2026-07-17 THY1SX - Jul 17, 07:40 UTCJul 17, 10:44 UTC3h 5m
2026-07-17 THY4EN - Jul 17, 01:05 UTCJul 17, 02:34 UTC1h 30m
2026-07-16 THY5LB - Jul 16, 22:00 UTCJul 16, 23:20 UTC1h 20m
2026-07-16 THY1896 - Jul 16, 13:45 UTCJul 16, 16:00 UTC2h 15m
2026-07-16 THY2HG - Jul 16, 08:50 UTCJul 16, 11:10 UTC2h 20m
2026-07-16 THY8LG - Jul 16, 05:40 UTCJul 16, 06:05 UTC25m
2026-07-15 THY4DL - Jul 15, 18:00 UTCJul 16, 05:10 UTC11h 10m
2026-07-15 THY1KQ - Jul 15, 11:05 UTCJul 15, 13:45 UTC2h 40m
2026-07-15 THY3JL - Jul 15, 08:00 UTCJul 15, 08:45 UTC45m
2026-07-15 THY3JL - Jul 15, 05:35 UTCJul 15, 07:55 UTC2h 20m
2026-07-14 THY140 - Jul 14, 17:35 UTCJul 15, 02:25 UTC8h 49m
2026-07-14 THY8TV - Jul 14, 12:55 UTCJul 14, 15:10 UTC2h 15m
2026-07-14 THY2XR - Jul 14, 08:30 UTCJul 14, 11:00 UTC2h 30m
2026-07-14 THY2JK - Jul 14, 03:15 UTCJul 14, 05:00 UTC1h 45m
2026-07-13 THY4VL - Jul 13, 23:35 UTCJul 14, 01:20 UTC1h 45m
2026-07-13 THY3RU - Jul 13, 16:10 UTCJul 13, 20:15 UTC4h 5m
2026-07-13 THY5RM - Jul 13, 09:35 UTCJul 13, 14:00 UTC4h 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 TC-LOA page for operator, model, and routing details .

Mode-S 4BB1E1 frequently asked

What is Mode-S code 4BB1E1?
4BB1E1 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LOA.
Where is Mode-S 4BB1E1 registered?
Mode-S code 4BB1E1 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB1E1 broadcasting right now?
Yes. Mode-S 4BB1E1 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB1E1, octal 22730741, decimal 4,960,737.
What flights does 4BB1E1 operate?
Mode-S 4BB1E1 has broadcast 20 distinct callsigns, including THY9NL, THY1SX, THY8LG, THY351, THY7KT.