Apparatus

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sensors Mode-S transponder

7807A1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5277 · BOEING 737-700

Hex
7807A1
Octal
36003641
Decimal
7,866,273
Country
CN
Tail
B-5277
Type
B737
No current signal · last broadcast Jul 25, 05:45 UTC
Flights observed
50
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 05:45 UTC

Last known position

Most recent position reported by Mode-S 7807A1.

Country allocation

The ICAO 24-bit address 7807A1 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
CXA8770 - 7 2026-06-21
CXA8672 - 6 2026-07-08
CXA8671 - 5 2026-07-08
CXA8847 - 3 2026-05-30
CXA8842 - 3 2026-06-27
CXA8841 - 3 2026-06-27
CXA8760 Xiamen Airlines 2 2026-07-21
CXA8682 Xiamen Airlines 2 2026-04-30
CXA8681 Xiamen Airlines 2 2026-04-30
CXA8664 - 2 2026-07-08
CXA8663 - 2 2026-07-08
CXA8392 - 2 2026-07-25
CXA8757 - 1 2026-07-05
CXA869 Xiamen Airlines 1 2026-05-19
CXA8660 - 1 2026-07-23
CXA8659 - 1 2026-07-23
CXA8580 - 1 2026-06-06
CXA8546 - 1 2026-06-17
CXA8511 - 1 2026-04-18
CXA8341 - 1 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CXA8392 - Jul 25, 05:30 UTCJul 25, 05:45 UTC15m
2026-07-23 CXA8660 - Jul 23, 10:10 UTCJul 23, 11:20 UTC1h 10m
2026-07-23 CXA8659 - Jul 23, 06:35 UTCJul 23, 08:15 UTC1h 40m
2026-07-21 CXA8760 JHG → FOC Jul 21, 06:35 UTCJul 21, 08:55 UTC2h 20m
2026-07-17 CXA8392 - Jul 17, 05:50 UTCJul 17, 06:00 UTC10m
2026-07-13 CXA8305 - Jul 13, 00:15 UTCJul 13, 00:35 UTC20m
2026-07-09 CXA8760 - Jul 9, 06:40 UTCJul 9, 06:55 UTC15m
2026-07-08 CXA8672 - Jul 8, 11:30 UTCJul 8, 12:00 UTC30m
2026-07-08 CXA8671 - Jul 8, 09:15 UTCJul 8, 09:55 UTC40m
2026-07-08 CXA8664 - Jul 8, 05:35 UTCJul 8, 06:20 UTC45m
2026-07-08 CXA8663 - Jul 8, 03:20 UTCJul 8, 03:55 UTC35m
2026-07-05 CXA8757 - Jul 5, 01:15 UTCJul 5, 04:20 UTC3h 5m
2026-06-28 CXA8672 - Jun 28, 11:00 UTCJun 28, 11:19 UTC20m
2026-06-28 CXA8671 - Jun 28, 09:34 UTCJun 28, 09:50 UTC15m
2026-06-27 CXA8842 - Jun 27, 09:24 UTCJun 27, 09:40 UTC15m
2026-06-27 CXA8841 - Jun 27, 07:59 UTCJun 27, 08:20 UTC20m
2026-06-22 CXA8306 - Jun 22, 02:25 UTCJun 22, 02:34 UTC10m
2026-06-21 CXA8770 - Jun 21, 05:40 UTCJun 21, 06:40 UTC1h 0m
2026-06-17 CXA8546 - Jun 17, 14:55 UTCJun 17, 15:15 UTC20m
2026-06-15 CXA8842 ZUH → FOC Jun 15, 12:00 UTCJun 15, 13:00 UTC1h 0m
2026-06-15 CXA8841 FOC → ZUH Jun 15, 10:20 UTCJun 15, 10:40 UTC20m
2026-06-12 CXA8672 MFM → FOC Jun 12, 10:50 UTCJun 12, 11:05 UTC15m
2026-06-12 CXA8671 FOC → MFM Jun 12, 08:45 UTCJun 12, 09:00 UTC15m
2026-06-10 CXA8672 MFM → FOC Jun 10, 11:00 UTCJun 10, 11:15 UTC15m
2026-06-10 CXA8671 FOC → MFM Jun 10, 08:45 UTCJun 10, 08:55 UTC10m
2026-06-06 CXA8580 - Jun 6, 11:30 UTCJun 6, 11:39 UTC10m
2026-06-05 CXA8672 MFM → FOC Jun 5, 13:05 UTCJun 5, 13:15 UTC10m
2026-06-05 CXA8671 FOC → MFM Jun 5, 10:40 UTCJun 5, 11:30 UTC50m
2026-06-01 CXA8770 JHG → XMN Jun 1, 06:20 UTCJun 1, 06:50 UTC30m
2026-05-30 CXA8847 - May 30, 08:10 UTCMay 30, 23:45 UTC15h 35m
2026-05-27 CXA8842 ZUH → FOC May 27, 09:25 UTCMay 27, 09:40 UTC15m
2026-05-27 CXA8841 FOC → ZUH May 27, 07:30 UTCMay 27, 07:45 UTC15m
2026-05-24 CXA8664 HKG → FOC May 24, 05:45 UTCMay 24, 06:00 UTC15m
2026-05-24 CXA8663 FOC → HKG May 24, 03:10 UTCMay 24, 03:25 UTC15m
2026-05-22 CXA8672 MFM → FOC May 22, 12:05 UTCMay 22, 12:20 UTC15m
2026-05-22 CXA8323 FOC → CAN May 22, 04:20 UTCMay 22, 04:35 UTC15m
2026-05-19 CXA869 XMN → HAN May 19, 06:05 UTCMay 19, 10:40 UTC4h 35m
2026-05-18 CXA8770 JHG → XMN May 18, 06:55 UTCMay 18, 07:10 UTC15m
2026-05-03 CXA8847 - May 3, 00:01 UTCMay 3, 00:10 UTC10m
2026-04-30 CXA8682 MFM → XMN Apr 30, 07:25 UTCApr 30, 07:35 UTC10m
2026-04-30 CXA8681 XMN → MFM Apr 30, 05:50 UTCApr 30, 06:05 UTC15m
2026-04-28 CXA8682 MFM → XMN Apr 28, 07:10 UTCApr 28, 07:30 UTC20m
2026-04-28 CXA8681 XMN → MFM Apr 28, 05:35 UTCApr 28, 06:00 UTC25m
2026-04-27 CXA8770 JHG → XMN Apr 27, 07:35 UTCApr 27, 07:50 UTC15m
2026-04-26 CXA8770 JHG → XMN Apr 26, 06:35 UTCApr 26, 06:50 UTC15m
2026-04-22 CXA8770 JHG → XMN Apr 22, 07:00 UTCApr 22, 07:15 UTC15m
2026-04-20 CXA8770 JHG → XMN Apr 20, 07:00 UTCApr 21, 01:00 UTC18h 0m
2026-04-18 CXA8511 - Apr 18, 01:10 UTCApr 18, 01:20 UTC10m
2026-04-16 CXA8847 - Apr 16, 00:05 UTCApr 16, 00:20 UTC15m
2026-04-14 CXA8341 - Apr 14, 05:30 UTCApr 14, 05:55 UTC25m

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-5277 page for operator, model, and routing details .

Mode-S 7807A1 frequently asked

What is Mode-S code 7807A1?
7807A1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5277.
Where is Mode-S 7807A1 registered?
Mode-S code 7807A1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7807A1 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 05:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7807A1, octal 36003641, decimal 7,866,273.
What flights does 7807A1 operate?
Mode-S 7807A1 has broadcast 20 distinct callsigns, including CXA8770, CXA8672, CXA8671, CXA8847, CXA8842.