Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7808DF

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5685 · BOEING 737-800

Hex
7808DF
Octal
36004337
Decimal
7,866,591
Country
CN
Tail
B-5685
Type
B738
No current signal · last broadcast 15h ago
Flights observed
99
Distinct callsigns
20
Country
CN
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 7808DF.

Country allocation

The ICAO 24-bit address 7808DF 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
YZR7532 - 16 2026-07-01
YZR7596 Yangtze River Express 11 2026-06-21
YZR7531 Yangtze River Express 11 2026-06-03
YZR7501 Yangtze River Express 9 2026-05-26
YZR7579 - 8 2026-06-30
YZR7537 - 8 2026-06-29
YZR7548 - 7 2026-07-17
YZR7528 - 4 2026-04-20
YZR7527 Yangtze River Express 4 2026-06-01
YZR7580 - 3 2026-06-28
YZR7565 - 3 2026-07-01
YZR7508 - 3 2026-07-09
YZR7586 - 2 2026-04-30
YZR7536 Yangtze River Express 2 2026-06-23
YZR7595 Yangtze River Express 1 2026-06-21
YZR7588 - 1 2026-07-05
YZR7578 Yangtze River Express 1 2026-06-08
YZR7577 Yangtze River Express 1 2026-06-08
YZR7566 Yangtze River Express 1 2026-05-28
YZR7538 - 1 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 YZR7548 - Jul 17, 14:00 UTCJul 17, 14:24 UTC25m
2026-07-15 YZR7548 - Jul 15, 13:55 UTCJul 15, 14:30 UTC35m
2026-07-13 YZR7548 - Jul 13, 04:30 UTCJul 13, 14:40 UTC10h 10m
2026-07-12 YZR7548 - Jul 12, 13:50 UTCJul 13, 05:15 UTC15h 25m
2026-07-10 YZR7548 - Jul 10, 13:45 UTCJul 10, 14:30 UTC45m
2026-07-09 YZR7508 - Jul 9, 14:00 UTCJul 10, 13:45 UTC23h 45m
2026-07-08 YZR7548 - Jul 8, 14:40 UTCJul 8, 15:30 UTC50m
2026-07-06 YZR7548 - Jul 6, 05:20 UTCJul 6, 15:55 UTC10h 35m
2026-07-05 YZR7588 - Jul 5, 15:05 UTCJul 5, 15:15 UTC10m
2026-07-01 YZR7565 - Jul 1, 23:10 UTCJul 1, 23:25 UTC15m
2026-07-01 YZR7532 - Jul 1, 14:25 UTCJul 1, 14:45 UTC20m
2026-07-01 YZR7532 - Jul 1, 09:50 UTCJul 1, 10:00 UTC10m
2026-06-30 YZR7579 - Jun 30, 06:55 UTCJun 30, 07:15 UTC20m
2026-06-29 YZR7537 - Jun 29, 23:19 UTCJun 29, 23:29 UTC10m
2026-06-29 YZR7579 - Jun 29, 06:54 UTCJun 29, 10:44 UTC3h 50m
2026-06-28 YZR7537 - Jun 28, 22:55 UTCJun 28, 23:04 UTC10m
2026-06-28 YZR7580 - Jun 28, 11:00 UTCJun 28, 11:09 UTC10m
2026-06-28 YZR7579 - Jun 28, 07:54 UTCJun 28, 08:14 UTC20m
2026-06-27 YZR7579 - Jun 27, 06:09 UTCJun 27, 09:15 UTC3h 5m
2026-06-26 YZR7537 - Jun 26, 22:55 UTCJun 26, 23:04 UTC10m
2026-06-26 YZR7579 - Jun 26, 06:25 UTCJun 26, 06:50 UTC25m
2026-06-25 YZR7537 - Jun 25, 22:49 UTCJun 25, 22:59 UTC10m
2026-06-25 YZR7538 - Jun 25, 19:44 UTCJun 25, 20:05 UTC20m
2026-06-25 YZR7579 - Jun 25, 06:00 UTCJun 25, 06:14 UTC15m
2026-06-24 YZR7537 - Jun 24, 22:55 UTCJun 24, 23:04 UTC10m
2026-06-24 YZR7579 - Jun 24, 06:25 UTCJun 24, 06:50 UTC25m
2026-06-23 YZR7537 - Jun 23, 23:05 UTCJun 23, 23:14 UTC10m
2026-06-23 YZR7536 NGB → SZX Jun 23, 14:35 UTCJun 23, 14:55 UTC20m
2026-06-23 YZR7535 - Jun 23, 08:50 UTCJun 23, 08:59 UTC10m
2026-06-21 YZR7596 HAK → PVG Jun 21, 14:40 UTCJun 21, 14:50 UTC10m
2026-06-21 YZR7595 PVG → HAK Jun 21, 10:44 UTCJun 21, 10:54 UTC10m
2026-06-20 YZR7596 HAK → PVG Jun 20, 04:39 UTCJun 20, 04:49 UTC10m
2026-06-19 YZR7596 HAK → PVG Jun 19, 16:09 UTCJun 19, 16:25 UTC15m
2026-06-17 YZR7508 - Jun 17, 12:50 UTCJun 17, 13:35 UTC45m
2026-06-13 YZR7508 - Jun 13, 12:45 UTCJun 13, 13:30 UTC45m
2026-06-13 YZR7596 HAK → PVG Jun 13, 04:45 UTCJun 13, 04:55 UTC10m
2026-06-10 YZR7596 HAK → PVG Jun 10, 14:30 UTCJun 10, 14:40 UTC10m
2026-06-09 YZR7596 HAK → PVG Jun 9, 14:20 UTCJun 9, 14:30 UTC10m
2026-06-08 YZR7578 SZX → PVG Jun 8, 18:15 UTCJun 8, 18:25 UTC10m
2026-06-08 YZR7577 PVG → SZX Jun 8, 16:45 UTCJun 8, 17:00 UTC15m
2026-06-08 YZR7596 HAK → PVG Jun 8, 05:25 UTCJun 8, 05:35 UTC10m
2026-06-07 YZR7596 HAK → PVG Jun 7, 14:05 UTCJun 7, 14:15 UTC10m
2026-06-03 YZR7565 SZX → PVG Jun 3, 23:15 UTCJun 3, 23:25 UTC10m
2026-06-03 YZR7532 HGH → SZX Jun 3, 15:25 UTCJun 3, 15:45 UTC20m
2026-06-03 YZR7531 SZX → HGH Jun 3, 01:40 UTCJun 3, 01:50 UTC10m
2026-06-01 YZR7527 SZX → HET Jun 1, 23:45 UTCJun 1, 23:55 UTC10m
2026-06-01 YZR7580 ZUH → PVG Jun 1, 08:50 UTCJun 1, 09:00 UTC10m
2026-06-01 YZR7579 PVG → ZUH Jun 1, 06:00 UTCJun 1, 06:15 UTC15m
2026-05-31 YZR7537 SZX → KWE May 31, 22:45 UTCMay 31, 22:55 UTC10m
2026-05-31 YZR7580 ZUH → PVG May 31, 08:45 UTCMay 31, 08:55 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-5685 page for operator, model, and routing details .

Mode-S 7808DF frequently asked

What is Mode-S code 7808DF?
7808DF is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5685.
Where is Mode-S 7808DF registered?
Mode-S code 7808DF is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7808DF broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7808DF, octal 36004337, decimal 7,866,591.
What flights does 7808DF operate?
Mode-S 7808DF has broadcast 20 distinct callsigns, including YZR7532, YZR7596, YZR7531, YZR7501, YZR7579.