Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781FEA

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-223X · BOEING 737 MAX 8

Hex
781FEA
Octal
36017752
Decimal
7,872,490
Country
CN
Tail
B-223X
Type
B38M
No current signal · last broadcast 7h ago
Flights observed
113
Distinct callsigns
20
Country
CN
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 781FEA.

Country allocation

The ICAO 24-bit address 781FEA 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
CCA980 Air China 9 2026-06-07
CCA979 Air China 9 2026-06-07
CCA118 Air China 8 2026-06-12
CCA117 Air China 8 2026-06-11
CCA960 Air China 5 2026-06-02
CCA959 Air China 4 2026-06-02
CCA1250 Air China 4 2026-06-12
CCA1249 Air China 3 2026-06-12
CCA1242 Air China 3 2026-06-11
CCA1241 Air China 3 2026-06-10
CCA956 Air China 2 2026-06-07
CCA955 Air China 2 2026-06-07
CCA906 Air China 2 2026-04-27
CCA1475 Air China 2 2026-05-26
CCA1448 Air China 2 2026-05-07
CCA1447 Air China 2 2026-05-07
CCA1446 Air China 2 2026-06-08
CCA1296 Air China 2 2026-06-09
CCA1295 Air China 2 2026-06-08
CCA1252 Air China 2 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-12 CCA1243 PEK → URC Jun 12, 23:15 UTCJun 12, 23:30 UTC15m
2026-06-12 CCA1250 KHG → PEK Jun 12, 16:30 UTCJun 12, 16:50 UTC20m
2026-06-12 CCA1249 PEK → KHG Jun 12, 05:45 UTCJun 12, 05:55 UTC10m
2026-06-12 CCA118 HKG → PEK Jun 12, 00:45 UTCJun 12, 01:00 UTC15m
2026-06-11 CCA117 PEK → HKG Jun 11, 09:50 UTCJun 11, 12:55 UTC3h 5m
2026-06-11 CCA1242 AAT → PEK Jun 11, 07:10 UTCJun 11, 07:30 UTC20m
2026-06-10 CCA1241 PEK → AAT Jun 10, 22:50 UTCJun 10, 23:05 UTC15m
2026-06-10 CCA1577 PEK → KHN Jun 10, 09:20 UTCJun 10, 09:30 UTC10m
2026-06-10 CCA1627 PEK → CGQ Jun 10, 02:15 UTCJun 10, 02:25 UTC10m
2026-06-09 CCA1241 PEK → AAT Jun 9, 07:45 UTCJun 9, 08:00 UTC15m
2026-06-09 CCA1296 URC → PEK Jun 9, 05:20 UTCJun 9, 05:40 UTC20m
2026-06-08 CCA1295 PEK → URC Jun 8, 12:40 UTCJun 8, 13:00 UTC20m
2026-06-08 CCA1446 KMG → PEK Jun 8, 02:50 UTCJun 8, 10:25 UTC7h 35m
2026-06-07 CCA980 BKK → PEK Jun 7, 18:45 UTCJun 7, 20:30 UTC1h 45m
2026-06-07 CCA979 PEK → BKK Jun 7, 12:30 UTCJun 7, 17:00 UTC4h 30m
2026-06-07 CCA956 UBN → PEK Jun 7, 09:30 UTCJun 7, 09:50 UTC20m
2026-06-07 CCA955 PEK → UBN Jun 7, 05:20 UTCJun 7, 05:35 UTC15m
2026-06-06 CCA1609 PEK → CGQ Jun 6, 23:24 UTCJun 6, 23:35 UTC10m
2026-06-06 CCA1292 URC → PEK Jun 6, 16:20 UTCJun 6, 16:34 UTC15m
2026-06-06 CCA1291 PEK → URC Jun 6, 08:15 UTCJun 6, 08:40 UTC25m
2026-06-06 CCA108 HKG → PEK Jun 6, 03:40 UTCJun 6, 04:00 UTC20m
2026-06-05 CCA107 PEK → HKG Jun 5, 10:35 UTCJun 5, 13:40 UTC3h 5m
2026-06-05 CCA1252 URC → PEK Jun 5, 07:55 UTCJun 5, 08:15 UTC20m
2026-06-04 CCA1251 PEK → URC Jun 4, 23:45 UTCJun 5, 00:05 UTC20m
2026-06-04 CCA1242 AAT → PEK Jun 4, 09:50 UTCJun 4, 10:10 UTC20m
2026-06-03 CCA1439 PEK → CKG Jun 3, 06:30 UTCJun 3, 06:55 UTC25m
2026-06-02 CCA960 BKK → PEK Jun 2, 17:00 UTCJun 2, 17:10 UTC10m
2026-06-02 CCA960 BKK → PEK Jun 2, 12:45 UTCJun 2, 14:30 UTC1h 45m
2026-06-02 CCA959 PEK → BKK Jun 2, 09:15 UTCJun 2, 11:05 UTC1h 50m
2026-06-02 CCA118 HKG → PEK Jun 2, 00:55 UTCJun 2, 01:10 UTC15m
2026-05-31 CCA980 BKK → PEK May 31, 18:40 UTCJun 1, 13:00 UTC18h 20m
2026-05-31 CCA979 PEK → BKK May 31, 15:15 UTCMay 31, 16:55 UTC1h 40m
2026-05-30 CCA960 BKK → PEK May 30, 12:50 UTCMay 30, 14:35 UTC1h 45m
2026-05-30 CCA959 PEK → BKK May 30, 06:25 UTCMay 30, 10:40 UTC4h 15m
2026-05-27 CCA1449 PEK → CKG May 27, 11:05 UTCMay 27, 11:30 UTC25m
2026-05-26 CCA1475 PEK → KMG May 26, 23:54 UTCMay 27, 07:40 UTC7h 45m
2026-05-26 CCA1250 KHG → PEK May 26, 16:10 UTCMay 26, 16:24 UTC15m
2026-05-26 CCA118 HKG → PEK May 26, 01:20 UTCMay 26, 01:34 UTC15m
2026-05-25 CCA117 PEK → HKG May 25, 10:05 UTCMay 25, 13:10 UTC3h 5m
2026-05-24 CCA960 BKK → PEK May 24, 12:45 UTCMay 24, 13:45 UTC1h 0m
2026-05-24 CCA959 PEK → BKK May 24, 09:45 UTCMay 24, 10:45 UTC1h 0m
2026-05-22 CCA980 BKK → PEK May 22, 18:40 UTCMay 22, 19:40 UTC1h 0m
2026-05-22 CCA979 PEK → BKK May 22, 15:50 UTCMay 22, 16:45 UTC55m
2026-05-22 CCA118 HKG → PEK May 22, 00:50 UTCMay 22, 01:05 UTC15m
2026-05-21 CCA117 PEK → HKG May 21, 12:25 UTCMay 21, 12:55 UTC30m
2026-05-21 CCA117 PEK → HKG May 21, 09:50 UTCMay 21, 10:05 UTC15m
2026-05-21 CCA1906 ZUH → PEK May 21, 05:10 UTCMay 21, 05:20 UTC10m
2026-05-21 CCA1905 PEK → ZUH May 21, 00:45 UTCMay 21, 01:00 UTC15m
2026-05-20 CCA902 UBN → PEK May 20, 05:35 UTCMay 20, 05:55 UTC20m
2026-05-20 CCA901 PEK → UBN May 20, 01:25 UTCMay 20, 01:35 UTC10m

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-223X page for operator, model, and routing details .

Mode-S 781FEA frequently asked

What is Mode-S code 781FEA?
781FEA is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-223X.
Where is Mode-S 781FEA registered?
Mode-S code 781FEA is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781FEA broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781FEA, octal 36017752, decimal 7,872,490.
What flights does 781FEA operate?
Mode-S 781FEA has broadcast 20 distinct callsigns, including CCA980, CCA979, CCA118, CCA117, CCA960.