Apparatus

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sensors Mode-S transponder

7806A2

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5550 · BOEING 737-800

Hex
7806A2
Octal
36003242
Decimal
7,866,018
Country
CN
Tail
B-5550
Type
B738
No current signal · last broadcast Jul 26, 21:20 UTC
Flights observed
177
Distinct callsigns
10
Country
CN
Last broadcast
Jul 26, 21:20 UTC

Last known position

Most recent position reported by Mode-S 7806A2.

Country allocation

The ICAO 24-bit address 7806A2 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 10 distinct

Callsign Airline Flights Last seen
CYZ216 China Postal Airlines 41 2026-07-25
CYZ213 - 35 2026-07-17
CYZ215 China Postal Airlines 32 2026-07-25
CYZ214 - 25 2026-07-17
CYZ287 China Postal Airlines 22 2026-07-26
CYZ288 China Postal Airlines 17 2026-07-26
CYZ292 - 1 2026-04-30
CYZ291 - 1 2026-04-30
CYZ202 China Postal Airlines 1 2026-04-17
CYZ201 China Postal Airlines 1 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CYZ288 CRK → YIW Jul 26, 19:45 UTCJul 26, 21:20 UTC1h 35m
2026-07-26 CYZ287 YIW → CRK Jul 26, 16:25 UTCJul 26, 18:40 UTC2h 15m
2026-07-25 CYZ216 KIX → YIW Jul 25, 03:55 UTCJul 25, 04:55 UTC1h 0m
2026-07-25 CYZ215 YIW → KIX Jul 25, 01:55 UTCJul 25, 02:55 UTC1h 0m
2026-07-24 CYZ215 YIW → KIX Jul 24, 04:35 UTCJul 25, 02:55 UTC22h 20m
2026-07-24 CYZ216 KIX → YIW Jul 24, 04:15 UTCJul 25, 02:30 UTC22h 15m
2026-07-24 CYZ215 YIW → KIX Jul 24, 01:45 UTCJul 24, 02:55 UTC1h 10m
2026-07-23 CYZ215 YIW → KIX Jul 23, 04:35 UTCJul 24, 02:55 UTC22h 20m
2026-07-23 CYZ216 KIX → YIW Jul 23, 03:55 UTCJul 24, 02:30 UTC22h 35m
2026-07-23 CYZ215 YIW → KIX Jul 23, 01:50 UTCJul 23, 02:55 UTC1h 5m
2026-07-22 CYZ215 YIW → KIX Jul 22, 04:35 UTCJul 23, 02:55 UTC22h 20m
2026-07-22 CYZ216 KIX → YIW Jul 22, 03:50 UTCJul 23, 02:30 UTC22h 40m
2026-07-21 CYZ288 CRK → YIW Jul 21, 20:40 UTCJul 22, 02:40 UTC6h 0m
2026-07-21 CYZ216 - Jul 21, 04:15 UTCJul 21, 18:35 UTC14h 20m
2026-07-21 CYZ215 - Jul 21, 02:15 UTCJul 21, 03:15 UTC1h 0m
2026-07-19 CYZ288 CRK → YIW Jul 19, 19:45 UTCJul 19, 21:45 UTC2h 0m
2026-07-19 CYZ287 YIW → CRK Jul 19, 16:45 UTCJul 19, 18:30 UTC1h 45m
2026-07-18 CYZ216 - Jul 18, 05:50 UTCJul 18, 06:45 UTC55m
2026-07-17 CYZ214 - Jul 17, 21:20 UTCJul 18, 04:35 UTC7h 16m
2026-07-17 CYZ213 KIX → MNL Jul 17, 04:04 UTCJul 17, 19:15 UTC15h 10m
2026-07-17 CYZ215 - Jul 17, 01:55 UTCJul 17, 02:54 UTC1h 0m
2026-07-16 CYZ215 - Jul 16, 04:35 UTCJul 17, 02:54 UTC22h 20m
2026-07-16 CYZ216 - Jul 16, 04:05 UTCJul 17, 02:30 UTC22h 25m
2026-07-15 CYZ214 - Jul 15, 20:30 UTCJul 16, 02:55 UTC6h 25m
2026-07-15 CYZ216 - Jul 15, 03:30 UTCJul 15, 18:40 UTC15h 10m
2026-07-15 CYZ215 - Jul 15, 01:20 UTCJul 15, 02:25 UTC1h 5m
2026-07-14 CYZ215 - Jul 14, 04:35 UTCJul 15, 02:25 UTC21h 49m
2026-07-14 CYZ215 KIX → KIX Jul 14, 04:15 UTCJul 15, 02:25 UTC22h 9m
2026-07-13 CYZ214 - Jul 13, 20:15 UTCJul 14, 03:15 UTC7h 0m
2026-07-13 CYZ213 - Jul 13, 16:45 UTCJul 13, 18:45 UTC2h 0m
2026-07-12 CYZ213 - Jul 12, 20:35 UTCJul 13, 18:45 UTC22h 10m
2026-07-12 CYZ288 - Jul 12, 20:10 UTCJul 12, 22:00 UTC1h 50m
2026-07-12 CYZ287 - Jul 12, 16:35 UTCJul 12, 18:25 UTC1h 50m
2026-07-10 CYZ214 - Jul 10, 23:25 UTCJul 11, 01:20 UTC1h 55m
2026-07-10 CYZ216 KIX → MNL Jul 10, 03:55 UTCJul 10, 18:40 UTC14h 45m
2026-07-09 CYZ215 - Jul 9, 20:10 UTCJul 10, 02:55 UTC6h 45m
2026-07-09 CYZ287 - Jul 9, 18:15 UTCJul 9, 18:40 UTC25m
2026-07-09 CYZ216 - Jul 9, 03:55 UTCJul 9, 17:15 UTC13h 20m
2026-07-08 CYZ215 - Jul 8, 20:20 UTCJul 9, 03:00 UTC6h 40m
2026-07-08 CYZ216 KIX → MNL Jul 8, 04:10 UTCJul 8, 18:35 UTC14h 25m
2026-07-07 CYZ215 - Jul 7, 20:15 UTCJul 8, 03:20 UTC7h 5m
2026-07-07 CYZ287 - Jul 7, 18:10 UTCJul 7, 18:30 UTC20m
2026-07-07 CYZ216 - Jul 7, 04:05 UTCJul 7, 17:25 UTC13h 20m
2026-07-06 CYZ214 - Jul 6, 20:25 UTCJul 7, 03:00 UTC6h 35m
2026-07-06 CYZ213 - Jul 6, 17:55 UTCJul 6, 18:35 UTC40m
2026-07-06 CYZ213 - Jul 6, 16:50 UTCJul 6, 17:20 UTC30m
2026-07-05 CYZ288 CRK → YIW Jul 5, 20:45 UTCJul 6, 17:20 UTC20h 35m
2026-07-05 CYZ288 CRK → YIW Jul 5, 19:55 UTCJul 6, 17:20 UTC21h 25m
2026-07-05 CYZ287 - Jul 5, 17:15 UTCJul 5, 18:30 UTC1h 15m
2026-07-04 CYZ216 - Jul 4, 03:25 UTCJul 4, 04:30 UTC1h 5m

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-5550 page for operator, model, and routing details .

Mode-S 7806A2 frequently asked

What is Mode-S code 7806A2?
7806A2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5550.
Where is Mode-S 7806A2 registered?
Mode-S code 7806A2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7806A2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7806A2, octal 36003242, decimal 7,866,018.
What flights does 7806A2 operate?
Mode-S 7806A2 has broadcast 10 distinct callsigns, including CYZ216, CYZ213, CYZ215, CYZ214, CYZ287.