Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7818C7

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-20EA · BOEING 737 MAX 8

Hex
7818C7
Octal
36014307
Decimal
7,870,663
Country
CN
Tail
B-20EA
Type
B38M
No current signal · last broadcast 1h ago
Flights observed
128
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7818C7.

Country allocation

The ICAO 24-bit address 7818C7 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
CXA892 - 11 2026-07-02
CXA867 - 11 2026-06-25
CXA868 - 9 2026-06-25
CXA823 - 8 2026-06-29
CXA824 - 7 2026-06-30
CXA848 - 6 2026-06-15
CXA8372 - 5 2026-06-18
CXA8882 Xiamen Airlines 4 2026-06-04
CXA8881 Xiamen Airlines 4 2026-06-04
CXA847 - 4 2026-06-15
CXA8380 - 4 2026-06-17
CXA8371 - 4 2026-06-18
CXA837 - 4 2026-06-24
CXA891 Xiamen Airlines 3 2026-04-14
CXA851 - 3 2026-07-13
CXA898 Xiamen Airlines 2 2026-04-30
CXA897 Xiamen Airlines 2 2026-04-30
CXA8828 Xiamen Airlines 2 2026-06-02
CXA8827 Xiamen Airlines 2 2026-06-02
CXA8706 - 2 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CXA851 - Jul 13, 14:05 UTCJul 14, 06:50 UTC16h 45m
2026-07-13 CXA851 - Jul 13, 06:01 UTCJul 14, 03:30 UTC21h 30m
2026-07-11 CXA8676 - Jul 11, 18:55 UTCJul 12, 01:45 UTC6h 50m
2026-07-11 CXA8675 - Jul 11, 06:05 UTCJul 11, 17:30 UTC11h 25m
2026-07-10 CXA8426 - Jul 10, 13:55 UTCJul 11, 06:15 UTC16h 21m
2026-07-09 CXA8405 - Jul 9, 14:55 UTCJul 10, 06:05 UTC15h 10m
2026-07-09 CXA8479 - Jul 9, 10:00 UTCJul 10, 06:05 UTC20h 5m
2026-07-08 CXA8425 - Jul 8, 00:45 UTCJul 8, 15:30 UTC14h 45m
2026-07-02 CXA892 - Jul 2, 10:55 UTCJul 2, 21:00 UTC10h 5m
2026-07-01 CXA892 - Jul 1, 10:45 UTCJul 1, 21:10 UTC10h 25m
2026-06-30 CXA8706 - Jun 30, 11:00 UTCJun 30, 11:10 UTC10m
2026-06-30 CXA824 - Jun 30, 00:09 UTCJun 30, 00:39 UTC30m
2026-06-29 CXA823 - Jun 29, 15:24 UTCJun 29, 15:49 UTC25m
2026-06-27 CXA892 - Jun 27, 12:25 UTCJun 27, 21:15 UTC8h 50m
2026-06-25 CXA868 - Jun 25, 06:40 UTCJun 25, 08:04 UTC1h 25m
2026-06-25 CXA867 - Jun 25, 04:49 UTCJun 25, 05:09 UTC20m
2026-06-25 CXA867 - Jun 25, 02:35 UTCJun 25, 03:24 UTC50m
2026-06-24 CXA838 - Jun 24, 16:59 UTCJun 24, 17:50 UTC50m
2026-06-24 CXA837 - Jun 24, 15:00 UTCJun 24, 15:14 UTC15m
2026-06-24 CXA837 - Jun 24, 12:44 UTCJun 24, 13:30 UTC45m
2026-06-23 CXA8517 XMN → SHA Jun 23, 13:29 UTCJun 23, 13:45 UTC15m
2026-06-23 CXA868 - Jun 23, 06:55 UTCJun 23, 11:04 UTC4h 10m
2026-06-23 CXA867 - Jun 23, 04:45 UTCJun 23, 05:04 UTC20m
2026-06-23 CXA867 - Jun 23, 00:45 UTCJun 23, 03:09 UTC2h 25m
2026-06-20 CXA868 - Jun 20, 06:45 UTCJun 20, 13:44 UTC7h 0m
2026-06-20 CXA867 - Jun 20, 04:39 UTCJun 20, 04:59 UTC20m
2026-06-20 CXA867 - Jun 20, 00:34 UTCJun 20, 03:09 UTC2h 35m
2026-06-18 CXA8372 - Jun 18, 08:00 UTCJun 18, 08:10 UTC10m
2026-06-18 CXA8371 - Jun 18, 06:05 UTCJun 18, 06:20 UTC15m
2026-06-17 CXA8380 - Jun 17, 04:35 UTCJun 17, 04:45 UTC10m
2026-06-16 CXA868 - Jun 16, 06:54 UTCJun 16, 08:25 UTC1h 30m
2026-06-16 CXA867 - Jun 16, 04:50 UTCJun 16, 05:10 UTC20m
2026-06-16 CXA867 - Jun 16, 00:50 UTCJun 16, 03:25 UTC2h 35m
2026-06-15 CXA848 - Jun 15, 11:00 UTCJun 15, 11:10 UTC10m
2026-06-15 CXA848 - Jun 15, 07:15 UTCJun 15, 07:40 UTC25m
2026-06-15 CXA847 - Jun 15, 04:55 UTCJun 15, 05:15 UTC20m
2026-06-14 CXA8706 - Jun 14, 12:50 UTCJun 14, 13:00 UTC10m
2026-06-14 CXA8705 XMN → PEN Jun 14, 11:25 UTCJun 14, 11:35 UTC10m
2026-06-14 CXA824 - Jun 14, 00:05 UTCJun 14, 00:35 UTC30m
2026-06-13 CXA823 - Jun 13, 15:00 UTCJun 13, 15:25 UTC25m
2026-06-10 CXA8380 SZX → TSN Jun 10, 04:15 UTCJun 10, 04:25 UTC10m
2026-06-09 CXA8380 SZX → TSN Jun 9, 04:15 UTCJun 9, 04:25 UTC10m
2026-06-08 CXA868 CGK → XMN Jun 8, 06:40 UTCJun 8, 08:05 UTC1h 25m
2026-06-08 CXA867 XMN → CGK Jun 8, 05:15 UTCJun 8, 05:25 UTC10m
2026-06-07 CXA838 - Jun 7, 17:05 UTCJun 8, 03:15 UTC10h 10m
2026-06-07 CXA837 - Jun 7, 15:15 UTCJun 7, 15:30 UTC15m
2026-06-07 CXA837 - Jun 7, 11:20 UTCJun 7, 13:30 UTC2h 10m
2026-06-04 CXA8882 ZUH → SHA Jun 4, 11:40 UTCJun 4, 11:55 UTC15m
2026-06-04 CXA8881 SHA → ZUH Jun 4, 09:25 UTCJun 4, 09:45 UTC20m
2026-06-04 CXA8371 SHA → SZX Jun 4, 02:15 UTCJun 4, 02:55 UTC40m

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-20EA page for operator, model, and routing details .

Mode-S 7818C7 frequently asked

What is Mode-S code 7818C7?
7818C7 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-20EA.
Where is Mode-S 7818C7 registered?
Mode-S code 7818C7 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7818C7 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7818C7, octal 36014307, decimal 7,870,663.
What flights does 7818C7 operate?
Mode-S 7818C7 has broadcast 20 distinct callsigns, including CXA892, CXA867, CXA868, CXA823, CXA824.