sensors Mode-S transponder

7020A4

ICAO 24-bit transponder address · allocated to Bangladesh

Currently assigned to S2-AKD · DE HAVILLAND DHC-8-400 Dash 8

Hex
7020A4
Octal
34020244
Decimal
7,348,388
Country
BD
Tail
S2-AKD
Type
DH8D
No current signal · last broadcast 15h ago
Flights observed
12
Distinct callsigns
9
Country
BD
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 7020A4.

Country allocation

The ICAO 24-bit address 7020A4 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 9 distinct

Callsign Airline Flights Last seen
BBC604 Biman Bangladesh Airlines 2 2026-04-14
BBC603 Biman Bangladesh Airlines 2 2026-04-14
BBC395 - 2 2026-04-13
BBC618 - 1 2026-04-13
BBC617 - 1 2026-04-13
BBC602 - 1 2026-04-13
BBC601 - 1 2026-04-13
BBC433 Biman Bangladesh Airlines 1 2026-04-14
BBC396 Biman Bangladesh Airlines 1 2026-04-13

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 BBC604 ZYL → DAC Apr 14, 09:15 UTCApr 14, 09:45 UTC30m
2026-04-14 BBC603 DAC → ZYL Apr 14, 08:05 UTCApr 14, 08:30 UTC25m
2026-04-14 BBC433 DAC → CXB Apr 14, 06:10 UTCApr 14, 06:55 UTC45m
2026-04-13 BBC618 - Apr 13, 16:25 UTCApr 13, 17:10 UTC45m
2026-04-13 BBC617 - Apr 13, 15:20 UTCApr 13, 15:50 UTC30m
2026-04-13 BBC396 CCU → DAC Apr 13, 13:35 UTCApr 13, 14:15 UTC40m
2026-04-13 BBC395 - Apr 13, 12:20 UTCApr 13, 12:45 UTC25m
2026-04-13 BBC395 - Apr 13, 11:45 UTCApr 13, 12:15 UTC30m
2026-04-13 BBC604 - Apr 13, 10:10 UTCApr 13, 10:30 UTC20m
2026-04-13 BBC603 - Apr 13, 08:50 UTCApr 13, 09:10 UTC20m
2026-04-13 BBC602 - Apr 13, 06:35 UTCApr 13, 06:55 UTC20m
2026-04-13 BBC601 - Apr 13, 05:05 UTCApr 13, 05:25 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-AKD page for operator, model, and routing details .

Mode-S 7020A4 frequently asked

What is Mode-S code 7020A4?
7020A4 is an ICAO 24-bit transponder address. Allocated to Bangladesh. Assigned to S2-AKD.
Where is Mode-S 7020A4 registered?
Mode-S code 7020A4 is allocated to Bangladesh (BD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7020A4 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7020A4, octal 34020244, decimal 7,348,388.
What flights does 7020A4 operate?
Mode-S 7020A4 has broadcast 9 distinct callsigns, including BBC604, BBC603, BBC395, BBC618, BBC617.