Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781109

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-7377 · BOEING 737-800

Hex
781109
Octal
36010411
Decimal
7,868,681
Country
CN
Tail
B-7377
Type
B738
No current signal · last broadcast 6h ago
Flights observed
51
Distinct callsigns
12
Country
CN
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 781109.

Country allocation

The ICAO 24-bit address 781109 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 12 distinct

Callsign Airline Flights Last seen
FZA6652 Fuzhou Airlines 22 2026-06-10
FZA6651 Fuzhou Airlines 6 2026-06-08
FZA6510 Fuzhou Airlines 5 2026-06-08
FZA6635 Fuzhou Airlines 4 2026-05-21
FZA6636 Fuzhou Airlines 3 2026-05-21
FZA6768 - 2 2026-05-15
FZA6767 - 2 2026-05-13
FZA6573 Fuzhou Airlines 2 2026-05-12
FZA6532 Fuzhou Airlines 2 2026-05-19
FZA6598 Fuzhou Airlines 1 2026-05-17
FZA6597 Fuzhou Airlines 1 2026-05-03
FZA6531 Fuzhou Airlines 1 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-10 FZA6652 SZX → KMG Jun 10, 10:05 UTCJun 10, 14:15 UTC4h 10m
2026-06-10 FZA6652 SZX → KMG Jun 10, 09:20 UTCJun 10, 09:30 UTC10m
2026-06-08 FZA6510 KMG → FOC Jun 8, 17:50 UTCJun 9, 08:30 UTC14h 40m
2026-06-08 FZA6652 SZX → KMG Jun 8, 13:15 UTCJun 9, 08:30 UTC19h 15m
2026-06-08 FZA6651 KMG → SZX Jun 8, 10:55 UTCJun 8, 11:05 UTC10m
2026-06-07 FZA6652 SZX → KMG Jun 7, 12:55 UTCJun 7, 17:20 UTC4h 25m
2026-06-05 FZA6652 SZX → KMG Jun 5, 10:20 UTCJun 5, 15:10 UTC4h 50m
2026-06-05 FZA6651 KMG → SZX Jun 5, 08:30 UTCJun 5, 08:50 UTC20m
2026-06-03 FZA6652 SZX → KMG Jun 3, 11:25 UTCJun 3, 15:15 UTC3h 50m
2026-06-03 FZA6652 SZX → KMG Jun 3, 10:40 UTCJun 3, 10:50 UTC10m
2026-06-03 FZA6651 KMG → SZX Jun 3, 07:25 UTCJun 3, 07:35 UTC10m
2026-06-01 FZA6652 SZX → KMG Jun 1, 10:20 UTCJun 2, 07:50 UTC21h 30m
2026-06-01 FZA6652 SZX → KMG Jun 1, 10:10 UTCJun 2, 07:50 UTC21h 40m
2026-05-31 FZA6652 SZX → KMG May 31, 10:55 UTCMay 31, 16:00 UTC5h 5m
2026-05-29 FZA6652 SZX → KMG May 29, 10:55 UTCMay 29, 11:20 UTC25m
2026-05-27 FZA6652 SZX → KMG May 27, 10:15 UTCMay 27, 15:25 UTC5h 10m
2026-05-25 FZA6652 SZX → KMG May 25, 10:20 UTCMay 25, 10:30 UTC10m
2026-05-24 FZA6510 KMG → FOC May 24, 15:15 UTCMay 24, 15:25 UTC10m
2026-05-24 FZA6652 SZX → KMG May 24, 10:30 UTCMay 24, 10:50 UTC20m
2026-05-21 FZA6636 XNT → HRB May 21, 13:20 UTCMay 21, 13:35 UTC15m
2026-05-21 FZA6635 HRB → XNT May 21, 02:20 UTCMay 21, 02:30 UTC10m
2026-05-19 FZA6532 HAK → FOC May 19, 14:20 UTCMay 20, 09:50 UTC19h 31m
2026-05-19 FZA6635 HRB → XNT May 19, 02:30 UTCMay 19, 02:40 UTC10m
2026-05-18 FZA6532 HAK → FOC May 18, 11:20 UTCMay 18, 11:35 UTC15m
2026-05-18 FZA6531 FOC → HAK May 18, 07:10 UTCMay 18, 10:40 UTC3h 30m
2026-05-17 FZA6598 CSX → HRB May 17, 13:55 UTCMay 17, 14:10 UTC15m
2026-05-15 FZA6768 - May 15, 06:10 UTCMay 15, 10:10 UTC4h 0m
2026-05-13 FZA6767 - May 13, 05:50 UTCMay 13, 09:45 UTC3h 55m
2026-05-12 FZA6573 FOC → NNG May 12, 03:00 UTCMay 12, 03:25 UTC25m
2026-05-10 FZA6510 KMG → FOC May 10, 15:09 UTCMay 10, 15:19 UTC10m
2026-05-10 FZA6652 SZX → KMG May 10, 10:19 UTCMay 10, 10:35 UTC15m
2026-05-10 FZA6651 KMG → SZX May 10, 07:25 UTCMay 10, 07:40 UTC15m
2026-05-08 FZA6652 SZX → KMG May 8, 10:25 UTCMay 8, 10:44 UTC20m
2026-05-08 FZA6651 KMG → SZX May 8, 07:50 UTCMay 8, 08:05 UTC15m
2026-05-05 FZA6636 XNT → HRB May 5, 13:30 UTCMay 5, 13:40 UTC10m
2026-05-05 FZA6635 HRB → XNT May 5, 02:15 UTCMay 5, 02:25 UTC10m
2026-05-03 FZA6768 - May 3, 23:55 UTCMay 4, 13:25 UTC13h 30m
2026-05-03 FZA6767 - May 3, 13:55 UTCMay 4, 09:25 UTC19h 30m
2026-05-03 FZA6597 HRB → CSX May 3, 01:40 UTCMay 4, 00:10 UTC22h 29m
2026-05-02 FZA6636 XNT → HRB May 2, 13:25 UTCMay 3, 01:50 UTC12h 25m
2026-05-02 FZA6635 HRB → XNT May 2, 02:25 UTCMay 2, 02:35 UTC10m
2026-05-01 FZA6573 FOC → NNG May 1, 03:35 UTCMay 1, 06:55 UTC3h 20m
2026-04-29 FZA6652 SZX → KMG Apr 29, 11:40 UTCApr 29, 16:30 UTC4h 50m
2026-04-27 FZA6510 KMG → FOC Apr 27, 15:10 UTCApr 27, 15:20 UTC10m
2026-04-27 FZA6652 SZX → KMG Apr 27, 10:25 UTCApr 27, 10:35 UTC10m
2026-04-27 FZA6651 KMG → SZX Apr 27, 07:55 UTCApr 27, 08:05 UTC10m
2026-04-26 FZA6510 KMG → FOC Apr 26, 15:45 UTCApr 26, 15:55 UTC10m
2026-04-26 FZA6652 SZX → KMG Apr 26, 10:30 UTCApr 26, 10:50 UTC20m
2026-04-24 FZA6652 SZX → KMG Apr 24, 12:30 UTCApr 24, 17:40 UTC5h 10m
2026-04-22 FZA6652 SZX → KMG Apr 22, 10:40 UTCApr 22, 16:10 UTC5h 30m

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-7377 page for operator, model, and routing details .

Mode-S 781109 frequently asked

What is Mode-S code 781109?
781109 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-7377.
Where is Mode-S 781109 registered?
Mode-S code 781109 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781109 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781109, octal 36010411, decimal 7,868,681.
What flights does 781109 operate?
Mode-S 781109 has broadcast 12 distinct callsigns, including FZA6652, FZA6651, FZA6510, FZA6635, FZA6636.