Apparatus

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sensors Mode-S transponder

7020B4

ICAO 24-bit transponder address · allocated to Bangladesh

Currently assigned to S2-AJH · BOEING 737-800

Hex
7020B4
Octal
34020264
Decimal
7,348,404
Country
BD
Tail
S2-AJH
Type
B738
No current signal · last broadcast Jul 26, 17:35 UTC
Flights observed
371
Distinct callsigns
20
Country
BD
Last broadcast
Jul 26, 17:35 UTC

Last known position

Most recent position reported by Mode-S 7020B4.

Country allocation

The ICAO 24-bit address 7020B4 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 20 distinct

Callsign Airline Flights Last seen
UBG217 - 30 2026-07-09
UBG218 - 25 2026-07-09
UBG349 US-Bangla Airlines 24 2026-07-23
UBG307 - 24 2026-07-08
UBG350 US-Bangla Airlines 23 2026-07-24
UBG333 US-Bangla Airlines 23 2026-07-24
UBG308 - 20 2026-07-08
UBG346 - 17 2026-07-03
UBG325 US-Bangla Airlines 17 2026-07-26
UBG337 - 16 2026-07-05
UBG345 US-Bangla Airlines 14 2026-07-03
UBG334 US-Bangla Airlines 14 2026-07-24
UBG326 US-Bangla Airlines 14 2026-07-20
UBG338 - 13 2026-07-19
UBG309 US-Bangla Airlines 12 2026-07-20
UBG321 US-Bangla Airlines 10 2026-05-17
UBG310 US-Bangla Airlines 10 2026-07-20
UBG342 US-Bangla Airlines 9 2026-07-26
UBG341 US-Bangla Airlines 9 2026-07-25
UBG344 - 7 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UBG325 DAC → CAN Jul 26, 16:25 UTCJul 26, 17:35 UTC1h 10m
2026-07-26 UBG206 MAA → DAC Jul 26, 07:55 UTCJul 26, 13:35 UTC5h 40m
2026-07-26 UBG342 DXB → DAC Jul 26, 01:35 UTCJul 26, 06:15 UTC4h 40m
2026-07-25 UBG341 DAC → DXB Jul 25, 16:30 UTCJul 25, 21:00 UTC4h 30m
2026-07-25 UBG341 DAC → DXB Jul 25, 14:50 UTCJul 25, 15:10 UTC20m
2026-07-24 UBG334 DOH → DAC Jul 24, 20:50 UTCJul 24, 21:45 UTC55m
2026-07-24 UBG333 DAC → DOH Jul 24, 14:25 UTCJul 24, 19:20 UTC4h 55m
2026-07-24 UBG146 CXB → DAC Jul 24, 07:00 UTCJul 24, 07:25 UTC25m
2026-07-24 UBG145 DAC → CXB Jul 24, 05:25 UTCJul 24, 05:50 UTC25m
2026-07-24 UBG350 AUH → DAC Jul 24, 03:15 UTCJul 24, 03:40 UTC25m
2026-07-24 UBG350 AUH → DAC Jul 24, 01:35 UTCJul 24, 01:50 UTC15m
2026-07-23 UBG349 DAC → AUH Jul 23, 16:50 UTCJul 23, 17:00 UTC10m
2026-07-23 UBG349 DAC → AUH Jul 23, 12:30 UTCJul 23, 14:50 UTC2h 20m
2026-07-23 UBG206 MAA → DAC Jul 23, 04:55 UTCJul 23, 10:40 UTC5h 45m
2026-07-22 UBG350 AUH → DAC Jul 22, 19:30 UTCJul 23, 00:10 UTC4h 40m
2026-07-22 UBG349 DAC → AUH Jul 22, 16:45 UTCJul 22, 16:55 UTC10m
2026-07-22 UBG349 DAC → AUH Jul 22, 12:25 UTCJul 22, 15:25 UTC3h 0m
2026-07-21 UBG341 - Jul 21, 16:40 UTCJul 22, 05:20 UTC12h 40m
2026-07-21 UBG344 - Jul 21, 14:50 UTCJul 21, 15:15 UTC25m
2026-07-21 UBG344 - Jul 21, 08:55 UTCJul 21, 13:35 UTC4h 40m
2026-07-21 UBG343 - Jul 21, 03:10 UTCJul 21, 07:30 UTC4h 20m
2026-07-20 UBG326 CAN → DAC Jul 20, 23:40 UTCJul 21, 01:00 UTC1h 20m
2026-07-20 UBG326 CAN → DAC Jul 20, 21:30 UTCJul 20, 21:45 UTC15m
2026-07-20 UBG325 DAC → CAN Jul 20, 16:20 UTCJul 20, 17:30 UTC1h 10m
2026-07-20 UBG310 SIN → DAC Jul 20, 07:55 UTCJul 20, 11:35 UTC3h 40m
2026-07-20 UBG309 DAC → SIN Jul 20, 02:35 UTCJul 20, 06:15 UTC3h 40m
2026-07-19 UBG326 - Jul 19, 16:35 UTCJul 20, 01:15 UTC8h 40m
2026-07-19 UBG338 - Jul 19, 03:50 UTCJul 19, 12:50 UTC9h 0m
2026-07-18 UBG334 - Jul 18, 21:35 UTCJul 19, 02:15 UTC4h 40m
2026-07-18 UBG333 - Jul 18, 16:40 UTCJul 18, 19:30 UTC2h 50m
2026-07-18 UBG333 - Jul 18, 14:35 UTCJul 18, 15:30 UTC55m
2026-07-18 UBG333 - Jul 18, 12:50 UTCJul 18, 13:05 UTC15m
2026-07-18 UBG310 - Jul 18, 07:55 UTCJul 18, 11:35 UTC3h 40m
2026-07-18 UBG309 DAC → SIN Jul 18, 02:19 UTCJul 18, 06:00 UTC3h 41m
2026-07-17 UBG344 - Jul 17, 15:10 UTCJul 17, 15:44 UTC35m
2026-07-17 UBG344 - Jul 17, 09:20 UTCJul 17, 14:00 UTC4h 40m
2026-07-17 UBG343 - Jul 17, 07:40 UTCJul 17, 07:55 UTC15m
2026-07-17 UBG343 - Jul 17, 03:34 UTCJul 17, 06:25 UTC2h 50m
2026-07-17 UBG350 AUH → DAC Jul 17, 01:29 UTCJul 17, 02:05 UTC35m
2026-07-16 UBG350 AUH → DAC Jul 16, 21:00 UTCJul 17, 00:20 UTC3h 20m
2026-07-16 UBG349 - Jul 16, 14:40 UTCJul 16, 17:05 UTC2h 25m
2026-07-16 UBG349 - Jul 16, 12:34 UTCJul 16, 13:30 UTC55m
2026-07-16 UBG146 - Jul 16, 06:30 UTCJul 16, 07:15 UTC45m
2026-07-16 UBG15 - Jul 16, 04:55 UTCJul 16, 05:25 UTC30m
2026-07-15 UBG334 - Jul 15, 20:50 UTCJul 16, 01:55 UTC5h 5m
2026-07-15 UBG333 - Jul 15, 14:35 UTCJul 15, 19:25 UTC4h 50m
2026-07-15 UBG310 - Jul 15, 08:35 UTCJul 15, 12:25 UTC3h 50m
2026-07-15 UBG309 - Jul 15, 03:10 UTCJul 15, 04:50 UTC1h 40m
2026-07-14 UBG326 - Jul 14, 22:05 UTCJul 15, 01:30 UTC3h 24m
2026-07-14 UBG325 - Jul 14, 16:45 UTCJul 14, 18:00 UTC1h 15m

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

Mode-S 7020B4 frequently asked

What is Mode-S code 7020B4?
7020B4 is an ICAO 24-bit transponder address. Allocated to Bangladesh. Assigned to S2-AJH.
Where is Mode-S 7020B4 registered?
Mode-S code 7020B4 is allocated to Bangladesh (BD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7020B4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7020B4, octal 34020264, decimal 7,348,404.
What flights does 7020B4 operate?
Mode-S 7020B4 has broadcast 20 distinct callsigns, including UBG217, UBG218, UBG349, UBG307, UBG350.