Apparatus

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sensors Mode-S transponder

781063

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1549 · BOEING 737-800

Hex
781063
Octal
36010143
Decimal
7,868,515
Country
CN
Tail
B-1549
Type
B738
No current signal · last broadcast 3d ago
Flights observed
93
Distinct callsigns
20
Country
CN
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 781063.

Country allocation

The ICAO 24-bit address 781063 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
CHH7016 Hainan Airlines 4 2026-05-03
CHH7732 Hainan Airlines 3 2026-04-27
CHH7338 - 3 2026-06-19
CHH7889 - 2 2026-06-23
CHH7773 - 2 2026-07-10
CHH7644 - 2 2026-06-29
CHH7638 - 2 2026-07-02
CHH7394 - 2 2026-07-10
CHH7371 Hainan Airlines 2 2026-06-13
CHH7054 Hainan Airlines 2 2026-06-12
CHH7053 Hainan Airlines 2 2026-06-12
CHH7988 Hainan Airlines 1 2026-04-22
CHH7987 Hainan Airlines 1 2026-04-22
CHH7883 - 1 2026-06-21
CHH7874 Hainan Airlines 1 2026-06-08
CHH7811 Hainan Airlines 1 2026-06-06
CHH7809 - 1 2026-07-04
CHH7807 - 1 2026-07-05
CHH7805 Hainan Airlines 1 2026-05-29
CHH7778 - 1 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 CHH7120 - Jul 15, 10:15 UTCJul 15, 10:30 UTC15m
2026-07-11 CHH7276 - Jul 11, 12:40 UTCJul 11, 12:55 UTC15m
2026-07-11 CHH7275 - Jul 11, 06:35 UTCJul 11, 06:45 UTC10m
2026-07-11 CHH7740 - Jul 11, 04:40 UTCJul 11, 04:50 UTC10m
2026-07-10 CHH7739 - Jul 10, 22:30 UTCJul 10, 22:40 UTC10m
2026-07-10 CHH7774 KWE → SZX Jul 10, 16:20 UTCJul 10, 16:30 UTC10m
2026-07-10 CHH7773 - Jul 10, 12:00 UTCJul 10, 12:15 UTC15m
2026-07-10 CHH7394 - Jul 10, 05:35 UTCJul 10, 06:15 UTC40m
2026-07-10 CHH7393 - Jul 10, 01:20 UTCJul 10, 01:30 UTC10m
2026-07-09 CHH7475 - Jul 9, 08:00 UTCJul 9, 08:10 UTC10m
2026-07-09 CHH7175 - Jul 9, 00:25 UTCJul 9, 00:40 UTC15m
2026-07-08 CHH7776 TYN → SZX Jul 8, 16:55 UTCJul 8, 17:10 UTC15m
2026-07-08 CHH7775 - Jul 8, 06:00 UTCJul 8, 06:10 UTC10m
2026-07-07 CHH7730 - Jul 7, 21:20 UTCJul 7, 21:40 UTC20m
2026-07-05 CHH7807 - Jul 5, 05:35 UTCJul 5, 05:55 UTC20m
2026-07-04 CHH7809 - Jul 4, 09:55 UTCJul 4, 10:05 UTC10m
2026-07-03 CHH7209 - Jul 3, 05:30 UTCJul 3, 10:40 UTC5h 10m
2026-07-02 CHH7638 - Jul 2, 05:45 UTCJul 2, 05:55 UTC10m
2026-06-29 CHH7644 - Jun 29, 08:24 UTCJun 29, 08:39 UTC15m
2026-06-28 CHH7778 - Jun 28, 18:25 UTCJun 28, 18:40 UTC15m
2026-06-28 CHH7777 - Jun 28, 06:00 UTCJun 28, 09:15 UTC3h 15m
2026-06-27 CHH7185 - Jun 27, 22:45 UTCJun 27, 23:04 UTC20m
2026-06-27 CHH7134 - Jun 27, 16:30 UTCJun 27, 16:49 UTC20m
2026-06-27 CHH7133 - Jun 27, 13:30 UTCJun 27, 14:05 UTC35m
2026-06-26 CHH6213 - Jun 26, 22:55 UTCJun 26, 23:04 UTC10m
2026-06-25 CHH7372 CKG → HAK Jun 25, 07:05 UTCJun 25, 11:44 UTC4h 40m
2026-06-24 CHH7289 PEK → KWE Jun 24, 23:34 UTCJun 25, 04:49 UTC5h 15m
2026-06-23 CHH7674 - Jun 23, 13:55 UTCJun 23, 14:10 UTC15m
2026-06-23 CHH7673 - Jun 23, 09:24 UTCJun 23, 09:40 UTC15m
2026-06-23 CHH7889 - Jun 23, 00:09 UTCJun 23, 00:24 UTC15m
2026-06-22 CHH7193 - Jun 22, 14:40 UTCJun 22, 14:55 UTC15m
2026-06-22 CHH7236 - Jun 22, 09:45 UTCJun 22, 09:54 UTC10m
2026-06-22 CHH7235 - Jun 22, 04:49 UTCJun 22, 04:59 UTC10m
2026-06-22 CHH7148 - Jun 22, 02:45 UTCJun 22, 02:54 UTC10m
2026-06-21 CHH7547 - Jun 21, 12:19 UTCJun 21, 12:35 UTC15m
2026-06-21 CHH7883 - Jun 21, 00:10 UTCJun 21, 00:29 UTC20m
2026-06-20 CHH7491 PEK → XMN Jun 20, 08:44 UTCJun 20, 08:55 UTC10m
2026-06-20 CHH7191 - Jun 20, 00:09 UTCJun 20, 00:19 UTC10m
2026-06-19 CHH7338 - Jun 19, 11:39 UTCJun 19, 12:04 UTC25m
2026-06-14 CHH7044 - Jun 14, 02:10 UTCJun 14, 07:55 UTC5h 45m
2026-06-13 CHH7371 HAK → CKG Jun 13, 07:00 UTCJun 14, 02:10 UTC19h 10m
2026-06-13 CHH7371 HAK → CKG Jun 13, 02:50 UTCJun 14, 02:10 UTC23h 19m
2026-06-12 CHH7053 HAK → HGH Jun 12, 05:55 UTCJun 13, 02:55 UTC21h 0m
2026-06-12 CHH7054 HGH → HAK Jun 12, 02:50 UTCJun 13, 02:45 UTC23h 55m
2026-06-11 CHH7054 HGH → HAK Jun 11, 14:30 UTCJun 12, 06:05 UTC15h 35m
2026-06-11 CHH7338 XIY → PEK Jun 11, 11:45 UTCJun 11, 12:10 UTC25m
2026-06-08 CHH7874 SZX → XIY Jun 8, 09:10 UTCJun 8, 09:20 UTC10m
2026-06-08 CHH7394 HGH → SZX Jun 8, 07:20 UTCJun 8, 07:35 UTC15m
2026-06-07 CHH7773 SZX → KWE Jun 7, 14:00 UTCJun 7, 14:15 UTC15m
2026-06-07 CHH7709 PEK → SZX Jun 7, 09:35 UTCJun 7, 09:55 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-1549 page for operator, model, and routing details .

Mode-S 781063 frequently asked

What is Mode-S code 781063?
781063 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1549.
Where is Mode-S 781063 registered?
Mode-S code 781063 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781063 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781063, octal 36010143, decimal 7,868,515.
What flights does 781063 operate?
Mode-S 781063 has broadcast 20 distinct callsigns, including CHH7016, CHH7732, CHH7338, CHH7889, CHH7773.