Apparatus

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sensors Mode-S transponder

4A08EB

ICAO 24-bit transponder address · allocated to Romania

Currently assigned to YR-BGK · BOEING 737-800

Hex
4A08EB
Octal
22404353
Decimal
4,851,947
Country
RO
Tail
YR-BGK
Type
B738
Broadcasting now · callsign ROT301V · 34,000 ft
Flights observed
464
Distinct callsigns
20
Country
RO
Last broadcast
7h ago

Current position

4A08EB is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4A08EB falls within the block assigned to Romania (RO) by ICAO Annex 10, Volume III. Every aircraft registered in Romania 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
ROT416M Tarom 21 2026-06-01
ROT415K Tarom 21 2026-06-01
ROT301V - 16 2026-07-07
ROT382A - 14 2026-07-10
ROT381T - 14 2026-07-10
ROT302R - 14 2026-07-07
ROT648P - 12 2026-06-19
ROT647M - 11 2026-06-19
ROT364Q - 11 2026-07-10
ROT363T - 11 2026-07-10
ROT274K - 9 2026-06-19
ROT608L Tarom 8 2026-06-10
ROT607R Tarom 8 2026-06-10
ROT273L - 8 2026-06-19
ROT384J - 7 2026-07-07
ROT383X - 7 2026-07-07
ROT266Y Tarom 7 2026-05-30
ROT265R Tarom 7 2026-05-30
ROT2154 - 7 2026-07-05
ROT2153 Tarom 7 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ROT4002 - Jul 13, 21:25 UTCJul 13, 22:45 UTC1h 20m
2026-07-13 ROT4003 - Jul 13, 18:20 UTCJul 13, 19:50 UTC1h 30m
2026-07-13 ROT4004 - Jul 13, 14:55 UTCJul 13, 16:35 UTC1h 40m
2026-07-13 ROT4001 - Jul 13, 11:55 UTCJul 13, 13:25 UTC1h 30m
2026-07-13 ROT5146 - Jul 13, 07:01 UTCJul 13, 08:20 UTC1h 20m
2026-07-13 ROT5145 - Jul 13, 04:30 UTCJul 13, 06:01 UTC1h 30m
2026-07-13 ROT168Q - Jul 13, 01:20 UTCJul 13, 03:05 UTC1h 45m
2026-07-12 ROT167H - Jul 12, 22:25 UTCJul 13, 00:15 UTC1h 50m
2026-07-12 ROT4226 - Jul 12, 14:50 UTCJul 12, 17:05 UTC2h 15m
2026-07-12 ROT4225 - Jul 12, 12:35 UTCJul 12, 13:15 UTC40m
2026-07-12 ROT4225 - Jul 12, 10:55 UTCJul 12, 12:30 UTC1h 35m
2026-07-12 ROT8742 - Jul 12, 07:05 UTCJul 12, 08:25 UTC1h 20m
2026-07-12 ROT8741 - Jul 12, 04:15 UTCJul 12, 05:55 UTC1h 40m
2026-07-11 ROT4476 - Jul 11, 15:00 UTCJul 11, 16:25 UTC1h 25m
2026-07-11 ROT4477 - Jul 11, 11:45 UTCJul 11, 13:35 UTC1h 50m
2026-07-11 ROT4478 - Jul 11, 08:20 UTCJul 11, 10:20 UTC2h 0m
2026-07-11 ROT4475 - Jul 11, 05:40 UTCJul 11, 07:10 UTC1h 30m
2026-07-10 ROT364Q - Jul 10, 18:50 UTCJul 10, 21:05 UTC2h 15m
2026-07-10 ROT363T - Jul 10, 14:25 UTCJul 10, 17:20 UTC2h 55m
2026-07-10 ROT382A - Jul 10, 10:20 UTCJul 10, 12:40 UTC2h 20m
2026-07-10 ROT381T - Jul 10, 06:00 UTCJul 10, 08:50 UTC2h 50m
2026-07-10 ROT7532 - Jul 10, 03:05 UTCJul 10, 04:30 UTC1h 25m
2026-07-10 ROT7531 - Jul 10, 00:25 UTCJul 10, 01:45 UTC1h 20m
2026-07-09 ROT6442 - Jul 9, 19:40 UTCJul 9, 21:05 UTC1h 25m
2026-07-09 ROT6443 - Jul 9, 16:20 UTCJul 9, 18:10 UTC1h 50m
2026-07-09 ROT6444 - Jul 9, 12:55 UTCJul 9, 14:45 UTC1h 50m
2026-07-09 ROT6445 - Jul 9, 09:25 UTCJul 9, 11:25 UTC2h 0m
2026-07-09 ROT6446 - Jul 9, 06:30 UTCJul 9, 08:20 UTC1h 50m
2026-07-09 ROT6441 - Jul 9, 04:25 UTCJul 9, 05:15 UTC50m
2026-07-09 ROT6441 - Jul 9, 03:45 UTCJul 9, 04:20 UTC35m
2026-07-08 ROT364Q - Jul 8, 18:50 UTCJul 8, 21:05 UTC2h 15m
2026-07-08 ROT363T OTP → AMS Jul 8, 14:30 UTCJul 8, 17:25 UTC2h 55m
2026-07-08 ROT382A - Jul 8, 10:45 UTCJul 8, 13:05 UTC2h 20m
2026-07-08 ROT381T - Jul 8, 05:50 UTCJul 8, 08:45 UTC2h 55m
2026-07-08 ROT102L - Jul 8, 02:05 UTCJul 8, 04:10 UTC2h 5m
2026-07-07 ROT101C - Jul 7, 22:30 UTCJul 8, 00:30 UTC2h 0m
2026-07-07 ROT384J - Jul 7, 17:10 UTCJul 7, 19:35 UTC2h 25m
2026-07-07 ROT383X - Jul 7, 12:50 UTCJul 7, 15:35 UTC2h 45m
2026-07-07 ROT302R - Jul 7, 09:35 UTCJul 7, 11:30 UTC1h 55m
2026-07-07 ROT301V - Jul 7, 05:50 UTCJul 7, 07:55 UTC2h 5m
2026-07-06 ROT4002 - Jul 6, 21:25 UTCJul 6, 22:50 UTC1h 25m
2026-07-06 ROT4003 - Jul 6, 18:30 UTCJul 6, 20:05 UTC1h 35m
2026-07-06 ROT4004 - Jul 6, 14:50 UTCJul 6, 16:35 UTC1h 45m
2026-07-06 ROT4001 - Jul 6, 11:50 UTCJul 6, 13:10 UTC1h 20m
2026-07-06 ROT5146 - Jul 6, 06:20 UTCJul 6, 07:40 UTC1h 20m
2026-07-06 ROT5145 - Jul 6, 03:35 UTCJul 6, 05:00 UTC1h 25m
2026-07-05 ROT2154 - Jul 5, 22:05 UTCJul 6, 00:15 UTC2h 10m
2026-07-05 ROT2153 OTP → TLV Jul 5, 18:30 UTCJul 5, 20:40 UTC2h 10m
2026-07-05 ROT8731 - Jul 5, 09:55 UTCJul 5, 12:35 UTC2h 40m
2026-07-05 ROT6472 - Jul 5, 06:55 UTCJul 5, 08:20 UTC1h 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 YR-BGK page for operator, model, and routing details .

Mode-S 4A08EB frequently asked

What is Mode-S code 4A08EB?
4A08EB is an ICAO 24-bit transponder address. Allocated to Romania. Assigned to YR-BGK.
Where is Mode-S 4A08EB registered?
Mode-S code 4A08EB is allocated to Romania (RO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4A08EB broadcasting right now?
Yes. Mode-S 4A08EB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4A08EB, octal 22404353, decimal 4,851,947.
What flights does 4A08EB operate?
Mode-S 4A08EB has broadcast 20 distinct callsigns, including ROT416M, ROT415K, ROT301V, ROT382A, ROT381T.