Apparatus

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sensors Mode-S transponder

78061B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5503 · BOEING 737-800

Hex
78061B
Octal
36003033
Decimal
7,865,883
Country
CN
Tail
B-5503
Type
B738
No current signal · last broadcast 2h ago
Flights observed
38
Distinct callsigns
8
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 78061B.

Country allocation

The ICAO 24-bit address 78061B falls within the block assigned to China (CN) by ICAO Annex 10, Volume III. Every aircraft registered in China 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 8 distinct

Callsign Airline Flights Last seen
FZA6573 Fuzhou Airlines 9 2026-05-18
FZA6531 Fuzhou Airlines 8 2026-06-02
FZA6532 Fuzhou Airlines 7 2026-06-03
FZA6636 Fuzhou Airlines 5 2026-06-02
FZA6635 Fuzhou Airlines 4 2026-06-02
FZA6574 Fuzhou Airlines 3 2026-05-04
FZA6666 Fuzhou Airlines 1 2026-04-19
FZA6631 Fuzhou Airlines 1 2026-05-25

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-06-03 FZA6532 HAK → FOC Jun 3, 09:45 UTCJun 3, 10:00 UTC15m
2026-06-02 FZA6531 FOC → HAK Jun 2, 13:20 UTCJun 3, 07:20 UTC18h 0m
2026-06-02 FZA6636 XNT → HRB Jun 2, 09:15 UTCJun 3, 07:20 UTC22h 5m
2026-06-02 FZA6635 HRB → XNT Jun 2, 07:00 UTCJun 2, 07:15 UTC15m
2026-06-01 FZA6531 FOC → HAK Jun 1, 06:55 UTCJun 1, 10:00 UTC3h 5m
2026-05-30 FZA6636 XNT → HRB May 30, 06:45 UTCMay 30, 13:40 UTC6h 55m
2026-05-28 FZA6636 XNT → HRB May 28, 13:35 UTCMay 28, 13:50 UTC15m
2026-05-28 FZA6635 HRB → XNT May 28, 02:30 UTCMay 28, 02:40 UTC10m
2026-05-26 FZA6636 XNT → HRB May 26, 13:24 UTCMay 26, 13:40 UTC15m
2026-05-26 FZA6635 HRB → XNT May 26, 02:24 UTCMay 26, 02:39 UTC15m
2026-05-25 FZA6631 TAO → HRB May 25, 12:30 UTCMay 25, 12:40 UTC10m
2026-05-25 FZA6532 HAK → FOC May 25, 09:45 UTCMay 25, 10:00 UTC15m
2026-05-25 FZA6531 FOC → HAK May 25, 06:40 UTCMay 25, 07:05 UTC25m
2026-05-18 FZA6573 FOC → NNG May 18, 03:30 UTCMay 18, 08:05 UTC4h 35m
2026-05-17 FZA6573 FOC → NNG May 17, 03:35 UTCMay 17, 04:00 UTC25m
2026-05-15 FZA6532 HAK → FOC May 15, 07:10 UTCMay 15, 10:40 UTC3h 30m
2026-05-13 FZA6531 FOC → HAK May 13, 06:50 UTCMay 13, 09:55 UTC3h 5m
2026-05-11 FZA6531 FOC → HAK May 11, 07:00 UTCMay 11, 09:55 UTC2h 55m
2026-05-09 FZA6636 XNT → HRB May 9, 13:30 UTCMay 9, 13:45 UTC15m
2026-05-09 FZA6635 HRB → XNT May 9, 02:15 UTCMay 9, 02:25 UTC10m
2026-05-04 FZA6574 NNG → FOC May 4, 06:45 UTCMay 4, 07:00 UTC15m
2026-05-04 FZA6573 FOC → NNG May 4, 03:49 UTCMay 4, 04:15 UTC25m
2026-05-02 FZA6574 NNG → FOC May 2, 05:55 UTCMay 2, 06:05 UTC10m
2026-05-02 FZA6573 FOC → NNG May 2, 02:45 UTCMay 2, 03:10 UTC25m
2026-04-30 FZA6573 FOC → NNG Apr 30, 02:55 UTCApr 30, 03:10 UTC15m
2026-04-29 FZA6532 HAK → FOC Apr 29, 08:05 UTCApr 29, 08:25 UTC20m
2026-04-29 FZA6531 FOC → HAK Apr 29, 05:15 UTCApr 29, 05:35 UTC20m
2026-04-26 FZA6574 NNG → FOC Apr 26, 04:35 UTCApr 26, 04:45 UTC10m
2026-04-26 FZA6573 FOC → NNG Apr 26, 01:30 UTCApr 26, 01:50 UTC20m
2026-04-25 FZA6573 FOC → NNG Apr 25, 06:00 UTCApr 26, 01:50 UTC19h 50m
2026-04-25 FZA6573 FOC → NNG Apr 25, 03:00 UTCApr 25, 03:25 UTC25m
2026-04-23 FZA6573 FOC → NNG Apr 23, 03:25 UTCApr 23, 03:50 UTC25m
2026-04-19 FZA6666 PEK → FOC Apr 19, 14:35 UTCApr 19, 14:45 UTC10m
2026-04-19 FZA6532 HAK → FOC Apr 19, 07:05 UTCApr 19, 07:20 UTC15m
2026-04-19 FZA6531 FOC → HAK Apr 19, 03:55 UTCApr 19, 04:20 UTC25m
2026-04-17 FZA6532 HAK → FOC Apr 17, 08:25 UTCApr 17, 08:35 UTC10m
2026-04-17 FZA6531 FOC → HAK Apr 17, 03:20 UTCApr 17, 04:20 UTC1h 0m
2026-04-15 FZA6532 HAK → FOC Apr 15, 07:01 UTCApr 15, 07:50 UTC50m

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 B-5503 page for operator, model, and routing details .

Mode-S 78061B frequently asked

What is Mode-S code 78061B?
78061B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5503.
Where is Mode-S 78061B registered?
Mode-S code 78061B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78061B broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78061B, octal 36003033, decimal 7,865,883.
What flights does 78061B operate?
Mode-S 78061B has broadcast 8 distinct callsigns, including FZA6573, FZA6531, FZA6532, FZA6636, FZA6635.