sensors Mode-S transponder

7020A3

ICAO 24-bit transponder address · allocated to Bangladesh

Currently assigned to S2-AKL · ATR-72-600

Hex
7020A3
Octal
34020243
Decimal
7,348,387
Country
BD
Tail
S2-AKL
Type
AT76
No current signal · last broadcast 14h ago
Flights observed
11
Distinct callsigns
10
Country
BD
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 7020A3.

Country allocation

The ICAO 24-bit address 7020A3 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 10 distinct

Callsign Airline Flights Last seen
UBG121 - 2 2026-04-13
UBG542 - 1 2026-04-13
UBG541 - 1 2026-04-13
UBG536 - 1 2026-04-13
UBG535 - 1 2026-04-13
UBG166 - 1 2026-04-13
UBG165 US-Bangla Airlines 1 2026-04-13
UBG148 US-Bangla Airlines 1 2026-04-14
UBG147 US-Bangla Airlines 1 2026-04-14
UBG122 - 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 UBG148 CXB → DAC Apr 14, 07:50 UTCApr 14, 08:30 UTC40m
2026-04-14 UBG147 DAC → CXB Apr 14, 06:05 UTCApr 14, 06:35 UTC30m
2026-04-13 UBG542 - Apr 13, 16:35 UTCApr 13, 17:00 UTC25m
2026-04-13 UBG541 - Apr 13, 15:15 UTCApr 13, 15:45 UTC30m
2026-04-13 UBG166 - Apr 13, 12:45 UTCApr 13, 13:15 UTC30m
2026-04-13 UBG165 DAC → RJH Apr 13, 11:30 UTCApr 13, 12:00 UTC30m
2026-04-13 UBG536 - Apr 13, 08:25 UTCApr 13, 09:00 UTC35m
2026-04-13 UBG535 - Apr 13, 07:00 UTCApr 13, 07:20 UTC20m
2026-04-13 UBG122 - Apr 13, 05:30 UTCApr 13, 06:00 UTC30m
2026-04-13 UBG121 - Apr 13, 04:20 UTCApr 13, 04:50 UTC30m
2026-04-13 UBG121 - Apr 13, 04:05 UTCApr 13, 04:15 UTC10m

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

Mode-S 7020A3 frequently asked

What is Mode-S code 7020A3?
7020A3 is an ICAO 24-bit transponder address. Allocated to Bangladesh. Assigned to S2-AKL.
Where is Mode-S 7020A3 registered?
Mode-S code 7020A3 is allocated to Bangladesh (BD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7020A3 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7020A3, octal 34020243, decimal 7,348,387.
What flights does 7020A3 operate?
Mode-S 7020A3 has broadcast 10 distinct callsigns, including UBG121, UBG542, UBG541, UBG536, UBG535.