Apparatus

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sensors Mode-S transponder

781324

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1217 · BOEING 737-800

Hex
781324
Octal
36011444
Decimal
7,869,220
Country
CN
Tail
B-1217
Type
B738
No current signal · last broadcast 1d ago
Flights observed
144
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 781324.

Country allocation

The ICAO 24-bit address 781324 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
CCA1282 - 13 2026-06-30
CCA1911 - 12 2026-07-17
CCA1281 - 12 2026-06-30
CCA1909 - 11 2026-07-14
CCA1921 - 9 2026-07-04
CCA1659 - 4 2026-07-04
CCA1627 - 4 2026-07-18
CCA1283 - 4 2026-07-11
CCA1649 - 3 2026-07-12
CCA1495 - 3 2026-07-10
CCA1222 - 3 2026-07-13
CCA1123 - 3 2026-07-05
CCA1912 - 2 2026-07-03
CCA1871 - 2 2026-07-16
CCA1496 Air China 2 2026-07-10
CCA1476 - 2 2026-06-27
CCA1475 Air China 2 2026-06-08
CCA1463 Air China 2 2026-06-22
CCA1414 Air China 2 2026-07-01
CCA1361 Air China 2 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CCA1627 - Jul 18, 02:35 UTCJul 18, 02:45 UTC10m
2026-07-17 CCA1911 - Jul 17, 09:25 UTCJul 17, 09:35 UTC10m
2026-07-17 - - Jul 17, 02:25 UTCJul 17, 02:34 UTC10m
2026-07-16 CCA1871 - Jul 16, 06:50 UTCJul 16, 07:00 UTC10m
2026-07-14 CCA1909 - Jul 14, 23:40 UTCJul 15, 00:00 UTC20m
2026-07-14 CCA1911 - Jul 14, 08:25 UTCJul 14, 08:45 UTC20m
2026-07-13 CCA1909 - Jul 13, 23:40 UTCJul 14, 00:00 UTC20m
2026-07-13 CCA1222 - Jul 13, 13:10 UTCJul 13, 13:25 UTC15m
2026-07-13 CCA1221 - Jul 13, 08:40 UTCJul 13, 09:05 UTC25m
2026-07-12 CCA1909 - Jul 12, 23:55 UTCJul 13, 00:10 UTC15m
2026-07-12 CCA1641 - Jul 12, 12:01 UTCJul 12, 12:10 UTC10m
2026-07-12 CCA1649 - Jul 12, 05:10 UTCJul 12, 05:20 UTC10m
2026-07-11 CCA1284 - Jul 11, 15:15 UTCJul 11, 15:40 UTC25m
2026-07-11 CCA1283 - Jul 11, 10:45 UTCJul 11, 11:05 UTC20m
2026-07-10 CCA1909 - Jul 10, 23:30 UTCJul 10, 23:50 UTC20m
2026-07-10 CCA1496 YBP → PEK Jul 10, 16:30 UTCJul 10, 16:40 UTC10m
2026-07-10 CCA1495 - Jul 10, 10:05 UTCJul 10, 10:20 UTC15m
2026-07-09 CCA1283 - Jul 9, 08:55 UTCJul 9, 09:10 UTC15m
2026-07-07 CCA1627 - Jul 7, 02:00 UTCJul 7, 02:10 UTC10m
2026-07-06 CCA1262 - Jul 6, 14:20 UTCJul 6, 14:40 UTC20m
2026-07-06 CCA1261 - Jul 6, 07:50 UTCJul 6, 08:15 UTC25m
2026-07-05 CCA1123 - Jul 5, 12:15 UTCJul 5, 12:25 UTC10m
2026-07-04 CCA1659 - Jul 4, 23:00 UTCJul 4, 23:10 UTC10m
2026-07-04 CCA1921 - Jul 4, 09:10 UTCJul 4, 09:25 UTC15m
2026-07-03 CCA1909 - Jul 3, 23:40 UTCJul 4, 00:00 UTC20m
2026-07-03 CCA1912 - Jul 3, 16:45 UTCJul 3, 16:55 UTC10m
2026-07-03 CCA1911 - Jul 3, 09:25 UTCJul 3, 09:40 UTC15m
2026-07-03 CCA1404 - Jul 3, 06:30 UTCJul 3, 06:40 UTC10m
2026-07-02 CCA1403 - Jul 2, 22:50 UTCJul 2, 23:05 UTC15m
2026-07-01 CCA1414 KMG → PEK Jul 1, 22:50 UTCJul 2, 15:10 UTC16h 20m
2026-07-01 CCA1921 - Jul 1, 09:50 UTCJul 1, 10:05 UTC15m
2026-06-30 CCA1909 - Jun 30, 23:50 UTCJul 1, 00:10 UTC20m
2026-06-30 CCA1414 KMG → PEK Jun 30, 08:20 UTCJun 30, 15:45 UTC7h 25m
2026-06-30 CCA1282 - Jun 30, 05:15 UTCJun 30, 05:40 UTC25m
2026-06-30 CCA1281 - Jun 30, 01:25 UTCJun 30, 01:45 UTC21m
2026-06-29 CCA1229 - Jun 29, 08:14 UTCJun 29, 08:39 UTC25m
2026-06-29 CCA1939 - Jun 29, 00:20 UTCJun 29, 00:39 UTC20m
2026-06-28 CCA1124 - Jun 28, 17:30 UTCJun 28, 18:05 UTC35m
2026-06-28 CCA1282 - Jun 28, 04:59 UTCJun 28, 05:20 UTC20m
2026-06-28 CCA1281 - Jun 28, 01:19 UTCJun 28, 01:44 UTC25m
2026-06-27 CCA1495 - Jun 27, 09:55 UTCJun 27, 10:10 UTC15m
2026-06-27 CCA1476 - Jun 27, 00:00 UTCJun 27, 08:05 UTC8h 5m
2026-06-26 CCA1933 - Jun 26, 07:20 UTCJun 26, 07:39 UTC20m
2026-06-26 CCA1282 - Jun 26, 05:19 UTCJun 26, 05:30 UTC10m
2026-06-26 CCA1281 - Jun 26, 01:39 UTCJun 26, 02:00 UTC20m
2026-06-25 CCA1871 - Jun 25, 07:00 UTCJun 25, 07:09 UTC10m
2026-06-25 CCA1817 - Jun 25, 00:19 UTCJun 25, 00:29 UTC10m
2026-06-24 CCA1399 - Jun 24, 02:40 UTCJun 24, 03:00 UTC20m
2026-06-23 CCA1283 - Jun 23, 08:25 UTCJun 23, 08:54 UTC30m
2026-06-23 CCA1282 - Jun 23, 05:09 UTCJun 23, 05:29 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-1217 page for operator, model, and routing details .

Mode-S 781324 frequently asked

What is Mode-S code 781324?
781324 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1217.
Where is Mode-S 781324 registered?
Mode-S code 781324 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781324 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781324, octal 36011444, decimal 7,869,220.
What flights does 781324 operate?
Mode-S 781324 has broadcast 20 distinct callsigns, including CCA1282, CCA1911, CCA1281, CCA1909, CCA1921.