Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

78156A

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-303U · AIRBUS A-320neo

Hex
78156A
Octal
36012552
Decimal
7,869,802
Country
CN
Tail
B-303U
Type
A20N
No current signal · last broadcast 2h ago
Flights observed
113
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 78156A.

Country allocation

The ICAO 24-bit address 78156A 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
CQH8522 Spring Airlines 4 2026-05-29
CQH6524 - 4 2026-06-26
CQH6465 - 4 2026-07-13
CQH8516 - 3 2026-06-21
CQH8511 - 3 2026-06-27
CQH7348 - 3 2026-06-29
CQH6921 - 3 2026-06-28
CQH6523 - 3 2026-06-26
CQH6466 - 3 2026-07-13
CQH8934 - 2 2026-06-27
CQH8876 - 2 2026-06-22
CQH8875 - 2 2026-06-15
CQH8597 - 2 2026-07-02
CQH8550 Spring Airlines 2 2026-04-14
CQH8549 - 2 2026-04-14
CQH8515 - 2 2026-06-21
CQH7684 - 2 2026-07-07
CQH7555 Spring Airlines 2 2026-06-03
CQH7419 - 2 2026-06-29
CQH7286 - 2 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CQH7199 - Jul 14, 08:35 UTCJul 14, 08:50 UTC15m
2026-07-13 CQH6466 - Jul 13, 08:25 UTCJul 13, 10:05 UTC1h 40m
2026-07-13 CQH6465 - Jul 13, 06:45 UTCJul 13, 06:55 UTC10m
2026-07-13 CQH6465 - Jul 13, 05:25 UTCJul 13, 05:40 UTC15m
2026-07-11 CQH7508 - Jul 11, 06:55 UTCJul 11, 07:05 UTC10m
2026-07-09 CQH7432 - Jul 9, 07:05 UTCJul 9, 10:15 UTC3h 10m
2026-07-09 CQH7431 - Jul 9, 02:55 UTCJul 9, 05:25 UTC2h 30m
2026-07-07 CQH7684 - Jul 7, 23:10 UTCJul 7, 23:30 UTC20m
2026-07-06 CQH6892 - Jul 6, 03:35 UTCJul 6, 03:45 UTC10m
2026-07-05 CQH7420 - Jul 5, 14:45 UTCJul 5, 15:35 UTC50m
2026-07-05 CQH7285 - Jul 5, 01:00 UTCJul 5, 13:05 UTC12h 5m
2026-07-02 CQH8598 - Jul 2, 09:10 UTCJul 2, 13:20 UTC4h 10m
2026-07-02 CQH8597 - Jul 2, 06:55 UTCJul 2, 07:15 UTC20m
2026-07-01 CQH8594 - Jul 1, 18:40 UTCJul 2, 04:10 UTC9h 30m
2026-07-01 CQH8593 - Jul 1, 14:05 UTCJul 1, 17:20 UTC3h 15m
2026-06-30 CQH7286 - Jun 30, 02:00 UTCJun 30, 04:20 UTC2h 20m
2026-06-29 CQH7419 - Jun 29, 23:29 UTCJun 30, 00:49 UTC1h 20m
2026-06-29 CQH7348 - Jun 29, 14:14 UTCJun 29, 14:39 UTC25m
2026-06-29 CQH7347 - Jun 29, 08:50 UTCJun 29, 09:00 UTC10m
2026-06-29 CQH6922 - Jun 29, 05:50 UTCJun 29, 06:09 UTC20m
2026-06-29 CQH6922 - Jun 29, 02:30 UTCJun 29, 02:50 UTC20m
2026-06-28 CQH6921 - Jun 28, 21:45 UTCJun 29, 01:00 UTC3h 15m
2026-06-28 CQH7008 - Jun 28, 16:05 UTCJun 28, 16:19 UTC15m
2026-06-28 CQH7007 - Jun 28, 10:55 UTCJun 28, 11:04 UTC10m
2026-06-27 CQH8934 - Jun 27, 14:54 UTCJun 27, 16:20 UTC1h 25m
2026-06-27 CQH8511 - Jun 27, 02:04 UTCJun 27, 13:35 UTC11h 30m
2026-06-26 CQH8511 - Jun 26, 14:55 UTCJun 27, 13:35 UTC22h 40m
2026-06-26 CQH6524 - Jun 26, 10:55 UTCJun 26, 11:05 UTC10m
2026-06-26 CQH6523 - Jun 26, 04:59 UTCJun 26, 09:14 UTC4h 15m
2026-06-25 CQH7050 - Jun 25, 07:54 UTCJun 26, 05:35 UTC21h 40m
2026-06-25 CQH7049 PVG → CJJ Jun 25, 05:35 UTCJun 25, 06:14 UTC40m
2026-06-24 CQH7050 - Jun 24, 04:30 UTCJun 24, 05:09 UTC40m
2026-06-23 CQH7049 PVG → CJJ Jun 23, 08:54 UTCJun 24, 03:10 UTC18h 15m
2026-06-22 CQH8597 - Jun 22, 13:05 UTCJun 23, 06:44 UTC17h 40m
2026-06-22 CQH8870 HRB → PVG Jun 22, 04:34 UTCJun 23, 03:54 UTC23h 20m
2026-06-22 CQH8876 - Jun 22, 03:54 UTCJun 22, 13:25 UTC9h 30m
2026-06-21 CQH8516 - Jun 21, 17:29 UTCJun 22, 02:25 UTC8h 55m
2026-06-21 CQH8515 - Jun 21, 14:44 UTCJun 21, 16:14 UTC1h 30m
2026-06-16 CQH6524 - Jun 16, 14:55 UTCJun 16, 15:24 UTC30m
2026-06-16 CQH6524 - Jun 16, 11:15 UTCJun 16, 11:30 UTC15m
2026-06-16 CQH6523 - Jun 16, 09:00 UTCJun 16, 09:40 UTC40m
2026-06-15 CQH8876 - Jun 15, 04:25 UTCJun 15, 05:10 UTC45m
2026-06-15 CQH8875 - Jun 15, 02:44 UTCJun 15, 03:05 UTC20m
2026-06-14 CQH8534 - Jun 14, 16:30 UTCJun 15, 02:10 UTC9h 40m
2026-06-13 CQH6156 - Jun 13, 06:50 UTCJun 13, 07:05 UTC15m
2026-06-13 CQH6155 - Jun 13, 04:25 UTCJun 13, 04:35 UTC10m
2026-06-12 CQH6466 BKK → NNG Jun 12, 08:25 UTCJun 12, 09:55 UTC1h 30m
2026-06-12 CQH6465 - Jun 12, 05:25 UTCJun 12, 07:05 UTC1h 40m
2026-06-11 CQH6466 BKK → NNG Jun 11, 08:35 UTCJun 11, 10:10 UTC1h 35m
2026-06-11 CQH6465 NNG → BKK Jun 11, 05:10 UTCJun 11, 06:55 UTC1h 45m

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-303U page for operator, model, and routing details .

Mode-S 78156A frequently asked

What is Mode-S code 78156A?
78156A is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-303U.
Where is Mode-S 78156A registered?
Mode-S code 78156A is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78156A broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78156A, octal 36012552, decimal 7,869,802.
What flights does 78156A operate?
Mode-S 78156A has broadcast 20 distinct callsigns, including CQH8522, CQH6524, CQH6465, CQH8516, CQH8511.