Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781626

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-209F · BOEING 737-800

Hex
781626
Octal
36013046
Decimal
7,869,990
Country
CN
Tail
B-209F
Type
B738
No current signal · last broadcast 1d ago
Flights observed
53
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 781626.

Country allocation

The ICAO 24-bit address 781626 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 20 distinct

Callsign Airline Flights Last seen
CUA5602 - 14 2026-07-12
CUA5630 - 6 2026-07-17
CUA5601 China United Airlines 3 2026-06-27
CUA5595 China United Airlines 3 2026-06-04
CUA5529 - 3 2026-07-07
CUA5686 China United Airlines 2 2026-05-27
CUA5685 China United Airlines 2 2026-05-27
CUA5567 - 2 2026-07-15
CUA5396 China United Airlines 2 2026-05-02
CUA5290 - 2 2026-05-22
CUA877 China United Airlines 1 2026-06-12
CUA5852 - 1 2026-07-08
CUA5802 China United Airlines 1 2026-05-27
CUA5652 - 1 2026-05-06
CUA5651 - 1 2026-05-06
CUA5638 China United Airlines 1 2026-06-11
CUA5632 China United Airlines 1 2026-05-03
CUA5582 - 1 2026-07-16
CUA5581 - 1 2026-07-16
CUA5569 - 1 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CUA5630 - Jul 17, 14:44 UTCJul 17, 14:55 UTC10m
2026-07-16 CUA5582 - Jul 16, 15:00 UTCJul 16, 15:10 UTC10m
2026-07-16 CUA5581 - Jul 16, 09:50 UTCJul 16, 10:04 UTC15m
2026-07-16 CUA5569 - Jul 16, 01:50 UTCJul 16, 02:00 UTC10m
2026-07-15 CUA5567 - Jul 15, 02:55 UTCJul 15, 03:15 UTC20m
2026-07-12 CUA5602 - Jul 12, 15:30 UTCJul 12, 15:40 UTC10m
2026-07-10 CUA5602 - Jul 10, 15:20 UTCJul 10, 15:35 UTC15m
2026-07-08 CUA5852 - Jul 8, 10:45 UTCJul 8, 11:00 UTC15m
2026-07-07 CUA5529 - Jul 7, 13:15 UTCJul 7, 13:30 UTC15m
2026-06-27 CUA5602 - Jun 27, 15:10 UTCJun 27, 15:30 UTC20m
2026-06-27 CUA5601 PKX → YZY Jun 27, 09:09 UTCJun 27, 09:24 UTC15m
2026-06-26 CUA5602 - Jun 26, 14:59 UTCJun 26, 15:15 UTC15m
2026-06-25 CUA5602 - Jun 25, 14:09 UTCJun 25, 14:24 UTC15m
2026-06-21 CUA2917 PVG → HUZ Jun 21, 13:04 UTCJun 21, 14:15 UTC1h 10m
2026-06-13 CUA5567 - Jun 13, 02:50 UTCJun 13, 03:05 UTC15m
2026-06-12 CUA877 PKX → VVO Jun 12, 05:50 UTCJun 12, 06:00 UTC10m
2026-06-11 CUA5638 LHW → PKX Jun 11, 10:55 UTCJun 11, 11:05 UTC10m
2026-06-11 CUA5525 PKX → YSQ Jun 11, 00:25 UTCJun 11, 00:35 UTC10m
2026-06-10 CUA5602 YZY → PKX Jun 10, 15:00 UTCJun 10, 15:15 UTC15m
2026-06-10 CUA5601 PKX → YZY Jun 10, 09:55 UTCJun 10, 10:10 UTC15m
2026-06-09 CUA5602 YZY → PKX Jun 9, 14:10 UTCJun 9, 14:35 UTC25m
2026-06-08 CUA5630 XNN → PKX Jun 8, 14:10 UTCJun 8, 14:25 UTC15m
2026-06-07 CUA5602 YZY → PKX Jun 7, 15:40 UTCJun 7, 15:50 UTC10m
2026-06-07 CUA5601 PKX → YZY Jun 7, 10:30 UTCJun 7, 10:40 UTC10m
2026-06-04 CUA5595 PKX → DBC Jun 4, 23:40 UTCJun 4, 23:50 UTC10m
2026-05-29 CUA5630 XNN → PKX May 29, 07:55 UTCMay 29, 08:05 UTC10m
2026-05-27 CUA5519 PKX → LDS May 27, 23:25 UTCMay 27, 23:35 UTC10m
2026-05-27 CUA5686 HMI → PKX May 27, 14:35 UTCMay 27, 14:50 UTC15m
2026-05-27 CUA5685 PKX → HMI May 27, 08:05 UTCMay 27, 08:20 UTC15m
2026-05-27 CUA5802 DSN → PKX May 27, 05:29 UTCMay 27, 05:45 UTC15m
2026-05-22 CUA5290 - May 22, 03:35 UTCMay 22, 04:20 UTC45m
2026-05-20 CUA5595 PKX → DBC May 20, 23:45 UTCMay 21, 00:00 UTC15m
2026-05-20 CUA5630 XNN → PKX May 20, 14:55 UTCMay 20, 15:10 UTC15m
2026-05-19 CUA5529 - May 19, 10:30 UTCMay 19, 10:45 UTC15m
2026-05-17 CUA5602 YZY → PKX May 17, 15:01 UTCMay 17, 15:15 UTC15m
2026-05-08 CUA5595 PKX → DBC May 8, 23:45 UTCMay 8, 23:55 UTC10m
2026-05-06 CUA5652 - May 6, 13:55 UTCMay 6, 14:05 UTC10m
2026-05-06 CUA5651 - May 6, 06:10 UTCMay 6, 06:25 UTC15m
2026-05-03 CUA5632 KMG → PKX May 3, 07:45 UTCMay 3, 07:55 UTC10m
2026-05-02 CUA5396 DSN → PKX May 2, 14:30 UTCMay 2, 14:45 UTC15m
2026-05-02 CUA5396 DSN → PKX May 2, 10:05 UTCMay 2, 10:20 UTC15m
2026-05-01 CUA5290 - May 1, 04:00 UTCMay 1, 04:40 UTC40m
2026-04-29 CUA5602 YZY → PKX Apr 29, 15:15 UTCApr 29, 15:30 UTC15m
2026-04-27 CUA5602 YZY → PKX Apr 27, 15:00 UTCApr 27, 15:10 UTC10m
2026-04-26 CUA5602 YZY → PKX Apr 26, 14:55 UTCApr 26, 15:10 UTC15m
2026-04-25 CUA5602 YZY → PKX Apr 25, 14:00 UTCApr 25, 14:15 UTC15m
2026-04-23 CUA5529 - Apr 23, 10:30 UTCApr 23, 10:45 UTC15m
2026-04-21 CUA5686 HMI → PKX Apr 21, 14:20 UTCApr 21, 14:35 UTC15m
2026-04-21 CUA5685 PKX → HMI Apr 21, 08:00 UTCApr 21, 08:15 UTC15m
2026-04-20 CUA5630 XNN → PKX Apr 20, 13:35 UTCApr 20, 13:50 UTC15m

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-209F page for operator, model, and routing details .

Mode-S 781626 frequently asked

What is Mode-S code 781626?
781626 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-209F.
Where is Mode-S 781626 registered?
Mode-S code 781626 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781626 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781626, octal 36013046, decimal 7,869,990.
What flights does 781626 operate?
Mode-S 781626 has broadcast 20 distinct callsigns, including CUA5602, CUA5630, CUA5601, CUA5595, CUA5529.