Apparatus

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sensors Mode-S transponder

70203F

ICAO 24-bit transponder address · allocated to Bangladesh

Currently assigned to S2-AFP · BOEING 777-300ER

Hex
70203F
Octal
34020077
Decimal
7,348,287
Country
BD
Tail
S2-AFP
Type
B77W
No current signal · last broadcast 12h ago
Flights observed
6
Distinct callsigns
3
Country
BD
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 70203F.

Country allocation

The ICAO 24-bit address 70203F falls within the block assigned to Bangladesh (BD) by ICAO Annex 10, Volume III. Every aircraft registered in Bangladesh 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 3 distinct

Callsign Airline Flights Last seen
BBC349 Biman Bangladesh Airlines 2 2026-04-14
BBC235 - 2 2026-04-13
BBC350 Biman Bangladesh Airlines 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 BBC349 DAC → DMM Apr 14, 09:30 UTCApr 14, 10:25 UTC55m
2026-04-14 - - Apr 14, 07:00 UTCApr 14, 07:10 UTC10m
2026-04-13 BBC235 - Apr 13, 12:50 UTCApr 13, 14:00 UTC1h 10m
2026-04-13 BBC235 - Apr 13, 10:50 UTCApr 13, 11:10 UTC20m
2026-04-13 BBC350 DMM → DAC Apr 13, 01:25 UTCApr 13, 02:20 UTC55m
2026-04-12 BBC349 - Apr 12, 18:00 UTCApr 12, 18:20 UTC20m

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 S2-AFP page for operator, model, and routing details .

Mode-S 70203F frequently asked

What is Mode-S code 70203F?
70203F is an ICAO 24-bit transponder address. Allocated to Bangladesh. Assigned to S2-AFP.
Where is Mode-S 70203F registered?
Mode-S code 70203F is allocated to Bangladesh (BD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 70203F broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 70203F, octal 34020077, decimal 7,348,287.
What flights does 70203F operate?
Mode-S 70203F has broadcast 3 distinct callsigns, including BBC349, BBC235, BBC350.