Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7806A0

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5547 · BOEING 737-800

Hex
7806A0
Octal
36003240
Decimal
7,866,016
Country
CN
Tail
B-5547
Type
B738
No current signal · last broadcast 12h ago
Flights observed
74
Distinct callsigns
20
Country
CN
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 7806A0.

Country allocation

The ICAO 24-bit address 7806A0 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
CUA5638 - 8 2026-07-20
CUA5567 - 7 2026-07-06
CUA5597 - 5 2026-06-30
CUA5579 China United Airlines 5 2026-07-22
CUA2319 China United Airlines 5 2026-05-28
CUA5535 - 4 2026-07-12
CUA2320 China United Airlines 4 2026-05-28
CUA5686 China United Airlines 2 2026-06-19
CUA5529 - 2 2026-06-27
CUA5525 China United Airlines 2 2026-06-06
CUA5509 China United Airlines 2 2026-07-18
CUA2930 China United Airlines 2 2026-05-27
CUA5890 - 1 2026-07-10
CUA5852 China United Airlines 1 2026-06-03
CUA5851 China United Airlines 1 2026-06-03
CUA5808 - 1 2026-07-14
CUA5781 - 1 2026-07-23
CUA5685 China United Airlines 1 2026-06-05
CUA5637 China United Airlines 1 2026-06-06
CUA5630 - 1 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 CUA5781 - Jul 23, 06:05 UTCJul 23, 06:35 UTC30m
2026-07-22 CUA5630 - Jul 22, 14:40 UTCJul 22, 15:00 UTC20m
2026-07-22 CUA5579 PKX → YNJ Jul 22, 03:05 UTCJul 22, 03:20 UTC15m
2026-07-20 CUA5638 - Jul 20, 15:35 UTCJul 20, 15:55 UTC20m
2026-07-20 CUA5580 YNJ → PKX Jul 20, 04:45 UTCJul 20, 05:05 UTC20m
2026-07-20 CUA5579 - Jul 20, 00:25 UTCJul 20, 00:35 UTC10m
2026-07-18 CUA5509 PKX → JXA Jul 18, 23:20 UTCJul 18, 23:30 UTC10m
2026-07-15 CUA5638 - Jul 15, 11:45 UTCJul 15, 12:00 UTC15m
2026-07-15 CUA5579 - Jul 15, 00:30 UTCJul 15, 00:40 UTC10m
2026-07-14 CUA5808 - Jul 14, 10:55 UTCJul 14, 11:15 UTC20m
2026-07-14 - - Jul 14, 08:25 UTCJul 14, 08:35 UTC10m
2026-07-13 CUA5638 - Jul 13, 11:10 UTCJul 13, 11:20 UTC10m
2026-07-13 CUA5579 - Jul 13, 00:20 UTCJul 13, 00:35 UTC15m
2026-07-12 CUA5521 - Jul 12, 10:35 UTCJul 12, 10:55 UTC20m
2026-07-12 CUA5536 - Jul 12, 08:45 UTCJul 12, 08:55 UTC10m
2026-07-12 CUA5535 - Jul 12, 05:01 UTCJul 12, 05:15 UTC15m
2026-07-10 CUA5890 - Jul 10, 14:10 UTCJul 10, 14:20 UTC10m
2026-07-10 CUA5510 - Jul 10, 04:25 UTCJul 10, 04:45 UTC20m
2026-07-09 CUA5509 - Jul 9, 23:25 UTCJul 9, 23:45 UTC20m
2026-07-09 CUA5589 - Jul 9, 11:05 UTCJul 9, 11:20 UTC15m
2026-07-09 CUA5535 - Jul 9, 05:10 UTCJul 9, 05:20 UTC10m
2026-07-07 - - Jul 7, 16:40 UTCJul 7, 16:50 UTC10m
2026-07-06 CUA5567 - Jul 6, 01:50 UTCJul 6, 02:05 UTC15m
2026-07-02 CUA2917 - Jul 2, 13:35 UTCJul 2, 14:05 UTC30m
2026-06-30 CUA5597 - Jun 30, 09:40 UTCJun 30, 09:50 UTC10m
2026-06-30 CUA5567 - Jun 30, 02:50 UTCJun 30, 03:05 UTC15m
2026-06-27 CUA5529 - Jun 27, 10:34 UTCJun 27, 10:54 UTC20m
2026-06-24 CUA5597 - Jun 24, 09:29 UTCJun 24, 09:45 UTC15m
2026-06-20 CUA5597 - Jun 20, 09:34 UTCJun 20, 09:44 UTC10m
2026-06-20 CUA5567 - Jun 20, 02:49 UTCJun 20, 03:09 UTC20m
2026-06-19 CUA5686 HMI → PKX Jun 19, 14:39 UTCJun 19, 14:49 UTC10m
2026-06-11 CUA5567 - Jun 11, 02:55 UTCJun 11, 03:15 UTC20m
2026-06-10 CUA5568 HLD → PKX Jun 10, 07:55 UTCJun 10, 08:15 UTC20m
2026-06-10 CUA5567 - Jun 10, 02:55 UTCJun 10, 03:05 UTC10m
2026-06-09 CUA5535 - Jun 9, 05:25 UTCJun 9, 05:40 UTC15m
2026-06-09 CUA5571 - Jun 9, 00:20 UTCJun 9, 00:30 UTC10m
2026-06-08 CUA5597 PKX → JMU Jun 8, 05:15 UTCJun 8, 05:30 UTC15m
2026-06-06 CUA5638 LHW → PKX Jun 6, 10:50 UTCJun 6, 11:05 UTC15m
2026-06-06 CUA5637 PKX → LHW Jun 6, 06:25 UTCJun 6, 06:40 UTC15m
2026-06-06 CUA5525 PKX → YSQ Jun 6, 00:20 UTCJun 6, 00:30 UTC10m
2026-06-05 CUA5686 HMI → PKX Jun 5, 14:10 UTCJun 5, 14:20 UTC10m
2026-06-05 CUA5685 PKX → HMI Jun 5, 08:00 UTCJun 5, 08:25 UTC25m
2026-06-03 CUA5852 SZX → PKX Jun 3, 10:00 UTCJun 3, 10:15 UTC15m
2026-06-03 CUA5851 PKX → SZX Jun 3, 08:25 UTCJun 3, 08:40 UTC15m
2026-06-03 CUA5525 PKX → YSQ Jun 3, 00:20 UTCJun 3, 00:35 UTC15m
2026-05-30 CUA5010 - May 30, 08:55 UTCMay 30, 09:20 UTC25m
2026-05-30 CUA5009 - May 30, 06:10 UTCMay 30, 06:35 UTC25m
2026-05-28 CUA2320 DBC → SJW May 28, 11:25 UTCMay 28, 11:35 UTC10m
2026-05-28 CUA2319 SJW → DBC May 28, 08:00 UTCMay 28, 08:15 UTC15m
2026-05-27 CUA2930 HLD → SJW May 27, 08:55 UTCMay 27, 09:10 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-5547 page for operator, model, and routing details .

Mode-S 7806A0 frequently asked

What is Mode-S code 7806A0?
7806A0 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5547.
Where is Mode-S 7806A0 registered?
Mode-S code 7806A0 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7806A0 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7806A0, octal 36003240, decimal 7,866,016.
What flights does 7806A0 operate?
Mode-S 7806A0 has broadcast 20 distinct callsigns, including CUA5638, CUA5567, CUA5597, CUA5579, CUA2319.