Apparatus

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sensors Mode-S transponder

780E2A

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6061 · BOEING 737-800

Hex
780E2A
Octal
36007052
Decimal
7,867,946
Country
CN
Tail
B-6061
Type
B738
No current signal · last broadcast Jul 25, 00:50 UTC
Flights observed
106
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 00:50 UTC

Last known position

Most recent position reported by Mode-S 780E2A.

Country allocation

The ICAO 24-bit address 780E2A 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
CHH7982 - 6 2026-07-18
CHH7322 Hainan Airlines 6 2026-05-30
CHH7981 - 4 2026-07-18
CHH7312 - 4 2026-07-09
CHH7987 Hainan Airlines 3 2026-05-29
CHH7815 - 3 2026-07-15
CHH7741 Hainan Airlines 3 2026-06-01
CHH7688 Hainan Airlines 3 2026-06-05
CHH7026 - 3 2026-06-27
CHH7988 Hainan Airlines 2 2026-05-29
CHH7807 Hainan Airlines 2 2026-07-23
CHH7749 - 2 2026-07-09
CHH7732 - 2 2026-06-27
CHH7731 - 2 2026-06-26
CHH7721 Hainan Airlines 2 2026-05-03
CHH7715 - 2 2026-06-26
CHH7698 Hainan Airlines 2 2026-04-22
CHH7528 - 2 2026-06-29
CHH7175 Hainan Airlines 2 2026-06-03
CHH6213 - 2 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CHH7308 CAN → SYX Jul 25, 00:40 UTCJul 25, 00:50 UTC10m
2026-07-24 CHH7131 CAN → SHA Jul 24, 01:00 UTCJul 24, 01:15 UTC15m
2026-07-23 CHH7807 PEK → CAN Jul 23, 04:45 UTCJul 24, 01:15 UTC20h 30m
2026-07-22 CHH7361 - Jul 22, 13:25 UTCJul 22, 13:40 UTC15m
2026-07-18 CHH7982 - Jul 18, 04:10 UTCJul 18, 05:00 UTC50m
2026-07-18 CHH7981 - Jul 18, 00:39 UTCJul 18, 02:14 UTC1h 35m
2026-07-16 CHH7982 - Jul 16, 04:25 UTCJul 16, 05:25 UTC1h 0m
2026-07-16 CHH7981 - Jul 16, 00:05 UTCJul 16, 01:35 UTC1h 30m
2026-07-15 CHH7815 - Jul 15, 13:20 UTCJul 15, 13:35 UTC15m
2026-07-15 CHH7236 - Jul 15, 10:55 UTCJul 15, 11:05 UTC10m
2026-07-12 CHH7337 - Jul 12, 14:20 UTCJul 12, 14:35 UTC15m
2026-07-12 CHH7079 - Jul 12, 00:55 UTCJul 12, 01:15 UTC20m
2026-07-11 CHH7338 - Jul 11, 13:10 UTCJul 11, 13:20 UTC10m
2026-07-09 CHH7749 - Jul 9, 19:20 UTCJul 9, 19:35 UTC15m
2026-07-09 CHH7312 - Jul 9, 01:40 UTCJul 9, 12:50 UTC11h 10m
2026-07-08 CHH7312 - Jul 8, 14:40 UTCJul 9, 12:50 UTC22h 10m
2026-07-08 CHH7312 - Jul 8, 02:10 UTCJul 8, 14:45 UTC12h 35m
2026-07-06 CHH7883 - Jul 6, 00:05 UTCJul 6, 00:20 UTC15m
2026-07-05 CHH7448 - Jul 5, 13:30 UTCJul 5, 13:50 UTC20m
2026-07-05 CHH7347 - Jul 5, 06:50 UTCJul 5, 07:05 UTC15m
2026-07-05 CHH7138 - Jul 5, 03:35 UTCJul 5, 04:00 UTC25m
2026-07-04 CHH7137 - Jul 4, 23:00 UTCJul 4, 23:20 UTC20m
2026-07-04 CHH7164 - Jul 4, 05:15 UTCJul 4, 09:15 UTC4h 0m
2026-07-04 CHH7291 - Jul 4, 00:15 UTCJul 4, 00:30 UTC15m
2026-07-03 CHH7477 - Jul 3, 05:00 UTCJul 3, 05:10 UTC10m
2026-07-02 CHH7377 PEK → HGH Jul 2, 14:50 UTCJul 2, 15:05 UTC15m
2026-07-01 CHH6213 - Jul 1, 22:55 UTCJul 1, 23:10 UTC15m
2026-06-30 CHH7289 PEK → KWE Jun 30, 23:50 UTCJul 1, 00:10 UTC20m
2026-06-29 CHH7528 - Jun 29, 05:30 UTCJun 29, 10:20 UTC4h 50m
2026-06-28 CHH7528 - Jun 28, 11:14 UTCJun 29, 10:20 UTC23h 5m
2026-06-27 CHH7026 - Jun 27, 12:39 UTCJun 27, 12:50 UTC10m
2026-06-27 CHH7732 - Jun 27, 11:04 UTCJun 27, 11:14 UTC10m
2026-06-26 CHH7731 - Jun 26, 23:44 UTCJun 26, 23:55 UTC10m
2026-06-26 CHH7715 - Jun 26, 18:09 UTCJun 26, 18:24 UTC15m
2026-06-26 CHH7715 - Jun 26, 15:45 UTCJun 26, 16:00 UTC15m
2026-06-26 CHH7710 - Jun 26, 09:30 UTCJun 26, 09:39 UTC10m
2026-06-25 CHH7877 XIY → SYX Jun 25, 08:45 UTCJun 25, 09:14 UTC30m
2026-06-23 CHH7982 - Jun 23, 04:55 UTCJun 23, 05:09 UTC15m
2026-06-23 CHH7982 - Jun 23, 04:00 UTCJun 23, 04:25 UTC25m
2026-06-23 CHH7981 - Jun 23, 00:04 UTCJun 23, 01:40 UTC1h 35m
2026-06-22 CHH7815 PEK → CAN Jun 22, 15:20 UTCJun 22, 15:40 UTC20m
2026-06-21 CHH6213 - Jun 21, 22:49 UTCJun 21, 23:00 UTC10m
2026-06-21 CHH7716 TNA → SZX Jun 21, 13:04 UTCJun 21, 13:15 UTC10m
2026-06-21 CHH7709 - Jun 21, 07:49 UTCJun 21, 07:59 UTC10m
2026-06-20 CHH7601 - Jun 20, 23:55 UTCJun 21, 00:04 UTC10m
2026-06-20 CHH7645 - Jun 20, 11:14 UTCJun 20, 11:25 UTC10m
2026-06-20 CHH6215 - Jun 20, 02:29 UTCJun 20, 02:49 UTC20m
2026-06-19 CHH7193 - Jun 19, 18:25 UTCJun 19, 18:34 UTC10m
2026-06-15 CHH6394 - Jun 15, 15:15 UTCJun 15, 15:30 UTC15m
2026-06-13 CHH7807 PEK → CAN Jun 13, 04:35 UTCJun 13, 04:55 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-6061 page for operator, model, and routing details .

Mode-S 780E2A frequently asked

What is Mode-S code 780E2A?
780E2A is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6061.
Where is Mode-S 780E2A registered?
Mode-S code 780E2A is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780E2A broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 00:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780E2A, octal 36007052, decimal 7,867,946.
What flights does 780E2A operate?
Mode-S 780E2A has broadcast 20 distinct callsigns, including CHH7982, CHH7322, CHH7981, CHH7312, CHH7987.