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sensors Mode-S transponder

7807B1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6820 · AIRBUS A-320

Hex
7807B1
Octal
36003661
Decimal
7,866,289
Country
CN
Tail
B-6820
Type
A320
Broadcasting now · callsign CQH6277 · 2,025 ft
Flights observed
109
Distinct callsigns
20
Country
CN
Last broadcast
3h ago

Current position

7807B1 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7807B1 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
CQH6540 - 10 2026-07-14
CQH6539 - 9 2026-07-14
CQH8613 - 5 2026-07-13
CQH6596 Spring Airlines 4 2026-07-10
CQH8662 - 3 2026-07-16
CQH8632 - 3 2026-06-27
CQH8631 - 3 2026-06-27
CQH7461 - 3 2026-06-15
CQH6732 - 3 2026-06-05
CQH6731 - 3 2026-06-04
CQH6595 Spring Airlines 3 2026-06-02
CQH8910 - 2 2026-04-27
CQH8753 - 2 2026-07-10
CQH8661 - 2 2026-07-01
CQH7419 - 2 2026-06-16
CQH6874 Spring Airlines 2 2026-05-28
CQH6825 - 2 2026-04-30
CQH6785 - 2 2026-07-15
CQH6482 - 2 2026-07-01
CQH6481 - 2 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CQH6277 CAN → SIN Jul 18, 10:15 UTCJul 18, 10:25 UTC10m
2026-07-17 CQH8762 - Jul 17, 08:25 UTCJul 17, 08:35 UTC10m
2026-07-16 CQH8662 - Jul 16, 06:10 UTCJul 16, 06:30 UTC20m
2026-07-15 CQH6481 - Jul 15, 22:35 UTCJul 15, 22:50 UTC15m
2026-07-15 CQH6786 - Jul 15, 14:55 UTCJul 15, 15:05 UTC10m
2026-07-15 CQH6785 - Jul 15, 02:45 UTCJul 15, 02:55 UTC10m
2026-07-14 CQH6540 - Jul 14, 16:25 UTCJul 14, 16:45 UTC20m
2026-07-14 CQH6540 - Jul 14, 12:10 UTCJul 14, 12:25 UTC15m
2026-07-14 CQH6539 - Jul 14, 09:25 UTCJul 14, 09:40 UTC15m
2026-07-14 CQH6539 - Jul 14, 05:30 UTCJul 14, 05:45 UTC15m
2026-07-14 CQH8614 - Jul 14, 04:00 UTCJul 14, 04:10 UTC10m
2026-07-13 CQH8613 - Jul 13, 22:55 UTCJul 13, 23:05 UTC10m
2026-07-13 CQH6540 - Jul 13, 16:25 UTCJul 13, 16:35 UTC10m
2026-07-13 CQH6540 - Jul 13, 12:10 UTCJul 13, 12:30 UTC20m
2026-07-13 CQH6539 - Jul 13, 09:10 UTCJul 13, 09:25 UTC15m
2026-07-13 CQH6539 - Jul 13, 05:05 UTCJul 13, 05:20 UTC15m
2026-07-12 CQH6785 - Jul 12, 02:20 UTCJul 12, 02:40 UTC20m
2026-07-11 CQH6728 - Jul 11, 15:05 UTCJul 11, 15:25 UTC20m
2026-07-11 CQH6727 - Jul 11, 10:45 UTCJul 11, 10:55 UTC10m
2026-07-10 CQH8753 - Jul 10, 22:35 UTCJul 10, 22:50 UTC15m
2026-07-10 CQH6596 TNA → SZX Jul 10, 15:40 UTCJul 10, 16:00 UTC20m
2026-07-10 CQH6988 - Jul 10, 07:30 UTCJul 10, 09:00 UTC1h 30m
2026-07-10 CQH6987 - Jul 10, 01:45 UTCJul 10, 06:20 UTC4h 35m
2026-07-09 CQH6729 - Jul 9, 23:15 UTCJul 9, 23:40 UTC25m
2026-07-07 CQH7302 - Jul 7, 08:20 UTCJul 7, 10:40 UTC2h 20m
2026-07-07 CQH7301 - Jul 7, 04:15 UTCJul 7, 06:55 UTC2h 40m
2026-07-06 CQH7612 - Jul 6, 05:25 UTCJul 6, 06:05 UTC40m
2026-07-04 CQH8936 - Jul 4, 15:05 UTCJul 4, 15:40 UTC35m
2026-07-04 CQH6873 - Jul 4, 06:50 UTCJul 4, 07:05 UTC15m
2026-07-03 CQH6540 - Jul 3, 20:50 UTCJul 3, 21:05 UTC15m
2026-07-03 CQH6540 - Jul 3, 12:15 UTCJul 3, 12:30 UTC15m
2026-07-03 CQH6539 - Jul 3, 09:15 UTCJul 3, 09:30 UTC15m
2026-07-03 CQH6539 - Jul 3, 05:05 UTCJul 3, 05:25 UTC20m
2026-07-02 CQH8613 - Jul 2, 22:40 UTCJul 2, 22:50 UTC10m
2026-07-02 CQH6540 - Jul 2, 18:25 UTCJul 2, 18:40 UTC15m
2026-07-02 CQH6540 - Jul 2, 12:10 UTCJul 2, 12:30 UTC20m
2026-07-02 CQH6539 - Jul 2, 09:05 UTCJul 2, 09:30 UTC25m
2026-07-02 CQH6539 - Jul 2, 05:05 UTCJul 2, 05:20 UTC15m
2026-07-01 CQH8613 - Jul 1, 22:40 UTCJul 1, 22:55 UTC15m
2026-07-01 CQH6482 - Jul 1, 16:50 UTCJul 1, 17:15 UTC25m
2026-07-01 CQH8661 - Jul 1, 09:30 UTCJul 1, 09:40 UTC10m
2026-07-01 CQH6156 - Jul 1, 05:30 UTCJul 1, 05:45 UTC15m
2026-06-27 CQH8632 - Jun 27, 10:10 UTCJun 27, 10:25 UTC15m
2026-06-27 CQH8631 - Jun 27, 08:25 UTCJun 27, 08:44 UTC20m
2026-06-25 CQH8753 - Jun 25, 22:39 UTCJun 25, 22:54 UTC15m
2026-06-25 CQH6482 - Jun 25, 20:19 UTCJun 25, 20:39 UTC20m
2026-06-25 CQH8661 - Jun 25, 09:45 UTCJun 25, 10:04 UTC20m
2026-06-23 CQH8674 HRB → SJW Jun 23, 12:49 UTCJun 23, 13:05 UTC15m
2026-06-23 CQH8673 SJW → HRB Jun 23, 08:45 UTCJun 23, 08:59 UTC15m
2026-06-22 CQH8761 - Jun 22, 04:04 UTCJun 22, 04:24 UTC20m

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-6820 page for operator, model, and routing details .

Mode-S 7807B1 frequently asked

What is Mode-S code 7807B1?
7807B1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6820.
Where is Mode-S 7807B1 registered?
Mode-S code 7807B1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7807B1 broadcasting right now?
Yes. Mode-S 7807B1 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7807B1, octal 36003661, decimal 7,866,289.
What flights does 7807B1 operate?
Mode-S 7807B1 has broadcast 20 distinct callsigns, including CQH6540, CQH6539, CQH8613, CQH6596, CQH8662.