Apparatus

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sensors Mode-S transponder

7803AF

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5477 · BOEING 737-800

Hex
7803AF
Octal
36001657
Decimal
7,865,263
Country
CN
Tail
B-5477
Type
B738
No current signal · last broadcast 1d ago
Flights observed
82
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7803AF.

Country allocation

The ICAO 24-bit address 7803AF 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
CCA1439 - 8 2026-07-15
CCA1871 Air China 5 2026-05-28
CCA1440 - 5 2026-07-15
CCA1324 Air China 4 2026-05-11
CCA1148 Air China 4 2026-07-19
CCA1817 Air China 3 2026-05-06
CCA1147 - 3 2026-07-19
CCA8914 - 2 2026-07-06
CCA1953 - 2 2026-07-18
CCA1921 - 2 2026-06-25
CCA1495 - 2 2026-07-19
CCA1323 Air China 2 2026-05-09
CCA1128 - 2 2026-07-17
CCA1127 - 2 2026-07-17
CCA9659 - 1 2026-07-14
CCA9527 - 1 2026-07-12
CCA8913 - 1 2026-07-06
CCA8207 Air China 1 2026-05-27
CCA8204 Air China 1 2026-05-27
CCA4132 - 1 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 CCA1495 - Jul 19, 08:50 UTCJul 19, 09:05 UTC15m
2026-07-19 CCA1148 RLK → PEK Jul 19, 04:05 UTCJul 19, 04:25 UTC20m
2026-07-19 CCA1147 - Jul 19, 01:00 UTCJul 19, 01:20 UTC20m
2026-07-18 CCA1953 - Jul 18, 11:50 UTCJul 18, 12:10 UTC20m
2026-07-18 CCA1228 - Jul 18, 09:20 UTCJul 18, 09:40 UTC20m
2026-07-18 CCA1227 - Jul 18, 05:45 UTCJul 18, 06:05 UTC20m
2026-07-17 CCA1443 - Jul 17, 10:40 UTCJul 17, 10:55 UTC15m
2026-07-17 CCA1128 - Jul 17, 08:10 UTCJul 17, 08:20 UTC10m
2026-07-17 CCA1127 - Jul 17, 04:54 UTCJul 17, 05:04 UTC10m
2026-07-16 CCA1655 - Jul 16, 23:10 UTCJul 16, 23:20 UTC10m
2026-07-16 CCA1407 - Jul 16, 09:00 UTCJul 16, 09:15 UTC15m
2026-07-15 CCA1440 - Jul 15, 12:25 UTCJul 15, 12:35 UTC10m
2026-07-15 CCA1439 - Jul 15, 06:45 UTCJul 15, 06:55 UTC10m
2026-07-14 CCA9659 - Jul 14, 23:05 UTCJul 14, 23:25 UTC20m
2026-07-14 CCA1953 - Jul 14, 12:00 UTCJul 14, 12:20 UTC20m
2026-07-13 CCA1873 - Jul 13, 10:05 UTCJul 13, 10:15 UTC10m
2026-07-12 CCA9527 - Jul 12, 05:25 UTCJul 12, 05:50 UTC25m
2026-07-06 CCA8913 - Jul 6, 15:00 UTCJul 6, 15:25 UTC25m
2026-07-06 CCA8914 - Jul 6, 11:40 UTCJul 6, 12:00 UTC20m
2026-07-05 CCA8914 - Jul 5, 11:55 UTCJul 5, 12:05 UTC10m
2026-07-04 - - Jul 4, 02:00 UTCJul 4, 02:10 UTC10m
2026-07-03 CCA1270 - Jul 3, 15:00 UTCJul 3, 15:25 UTC25m
2026-07-03 CCA1269 - Jul 3, 09:50 UTCJul 3, 10:05 UTC15m
2026-07-03 CCA1128 - Jul 3, 08:00 UTCJul 3, 08:10 UTC10m
2026-07-03 CCA1127 - Jul 3, 04:30 UTCJul 3, 04:50 UTC20m
2026-07-03 CCA1280 - Jul 3, 02:15 UTCJul 3, 02:40 UTC25m
2026-07-02 CCA1279 - Jul 2, 23:05 UTCJul 2, 23:25 UTC20m
2026-07-02 CCA1440 - Jul 2, 12:05 UTCJul 2, 12:20 UTC15m
2026-07-01 CCA1129 - Jul 1, 12:25 UTCJul 1, 12:35 UTC10m
2026-07-01 CCA1902 - Jul 1, 09:45 UTCJul 1, 10:05 UTC20m
2026-07-01 CCA1901 - Jul 1, 01:20 UTCJul 1, 01:30 UTC10m
2026-06-30 CCA1439 - Jun 30, 06:30 UTCJun 30, 06:55 UTC25m
2026-06-30 CCA1651 - Jun 30, 00:39 UTCJun 30, 00:49 UTC10m
2026-06-29 CCA1439 - Jun 29, 06:29 UTCJun 29, 06:54 UTC25m
2026-06-28 CCA1440 - Jun 28, 12:19 UTCJun 28, 12:29 UTC10m
2026-06-28 CCA1439 - Jun 28, 06:30 UTCJun 28, 06:40 UTC10m
2026-06-27 CCA1439 - Jun 27, 06:19 UTCJun 27, 06:30 UTC10m
2026-06-26 CCA1495 - Jun 26, 08:54 UTCJun 26, 09:20 UTC25m
2026-06-25 CCA1921 - Jun 25, 09:05 UTCJun 25, 09:25 UTC20m
2026-06-21 CCA1111 - Jun 21, 13:20 UTCJun 21, 13:34 UTC15m
2026-06-21 CCA1438 - Jun 21, 09:55 UTCJun 21, 10:04 UTC10m
2026-06-21 CCA4132 - Jun 21, 04:14 UTCJun 21, 04:34 UTC20m
2026-05-29 CCA1294 URC → PEK May 29, 15:10 UTCMay 29, 15:30 UTC20m
2026-05-29 CCA1148 RLK → PEK May 29, 04:20 UTCMay 29, 04:40 UTC20m
2026-05-29 CCA1147 PEK → RLK May 29, 01:10 UTCMay 29, 01:35 UTC25m
2026-05-28 CCA1871 PEK → XMN May 28, 06:40 UTCMay 28, 06:50 UTC10m
2026-05-27 CCA8207 WUH → PEK May 27, 06:55 UTCMay 27, 07:10 UTC15m
2026-05-27 CCA8204 PEK → WUH May 27, 02:14 UTCMay 27, 02:34 UTC20m
2026-05-26 CCA1921 - May 26, 09:15 UTCMay 26, 09:35 UTC20m
2026-05-19 CCA1378 SYX → PEK May 19, 16:10 UTCMay 19, 16:20 UTC10m

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-5477 page for operator, model, and routing details .

Mode-S 7803AF frequently asked

What is Mode-S code 7803AF?
7803AF is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5477.
Where is Mode-S 7803AF registered?
Mode-S code 7803AF is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7803AF 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 7803AF, octal 36001657, decimal 7,865,263.
What flights does 7803AF operate?
Mode-S 7803AF has broadcast 20 distinct callsigns, including CCA1439, CCA1871, CCA1440, CCA1324, CCA1148.