Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781619

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-306F · AIRBUS A-320neo

Hex
781619
Octal
36013031
Decimal
7,869,977
Country
CN
Tail
B-306F
Type
A20N
No current signal · last broadcast 2d ago
Flights observed
76
Distinct callsigns
20
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 781619.

Country allocation

The ICAO 24-bit address 781619 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
CES6329 - 10 2026-07-09
CES6340 - 8 2026-07-10
CES2804 China Eastern Airlines 7 2026-06-24
CES2803 - 7 2026-06-24
CES2970 - 5 2026-07-15
CES2969 - 5 2026-07-15
CES2951 - 4 2026-07-14
CES2662 - 4 2026-07-13
CES6339 - 3 2026-07-07
CES2839 - 3 2026-06-26
CES9797 China Eastern Airlines 2 2026-04-21
CES2962 China Eastern Airlines 2 2026-06-10
CES2840 China Eastern Airlines 2 2026-04-26
CES2711 China Eastern Airlines 2 2026-06-04
CES7708 - 1 2026-06-28
CES7707 - 1 2026-06-28
CES766 - 1 2026-06-30
CES765 - 1 2026-06-30
CES2961 China Eastern Airlines 1 2026-06-10
CES2937 China Eastern Airlines 1 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 CES2970 - Jul 15, 16:55 UTCJul 15, 20:30 UTC3h 35m
2026-07-15 CES2969 - Jul 15, 06:20 UTCJul 15, 15:35 UTC9h 15m
2026-07-14 CES2951 - Jul 14, 05:00 UTCJul 14, 05:15 UTC15m
2026-07-13 CES2662 - Jul 13, 12:25 UTCJul 13, 12:40 UTC15m
2026-07-10 CES6340 - Jul 10, 11:05 UTCJul 10, 15:20 UTC4h 15m
2026-07-09 CES6340 - Jul 9, 16:55 UTCJul 10, 01:05 UTC8h 10m
2026-07-09 CES6329 - Jul 9, 00:25 UTCJul 9, 00:40 UTC15m
2026-07-08 CES6340 - Jul 8, 04:45 UTCJul 8, 19:20 UTC14h 35m
2026-07-07 CES6339 - Jul 7, 12:30 UTCJul 8, 04:50 UTC16h 20m
2026-07-07 CES6329 - Jul 7, 00:30 UTCJul 7, 00:45 UTC15m
2026-07-06 CES6340 - Jul 6, 13:20 UTCJul 6, 17:45 UTC4h 25m
2026-07-06 CES6329 - Jul 6, 00:20 UTCJul 6, 01:15 UTC55m
2026-07-05 CES6340 - Jul 5, 16:40 UTCJul 5, 17:00 UTC20m
2026-07-04 CES6339 - Jul 4, 14:20 UTCJul 4, 14:30 UTC10m
2026-07-04 CES6329 - Jul 4, 03:20 UTCJul 4, 03:30 UTC10m
2026-07-03 CES6340 - Jul 3, 18:50 UTCJul 3, 19:20 UTC30m
2026-07-03 CES6329 - Jul 3, 00:30 UTCJul 3, 08:50 UTC8h 20m
2026-07-01 CES2970 KUL → NKG Jul 1, 18:05 UTCJul 1, 22:35 UTC4h 30m
2026-07-01 CES2969 - Jul 1, 12:30 UTCJul 1, 16:30 UTC4h 0m
2026-06-30 CES766 - Jun 30, 04:00 UTCJun 30, 12:50 UTC8h 50m
2026-06-30 CES765 - Jun 30, 01:50 UTCJun 30, 02:20 UTC30m
2026-06-29 CES2878 - Jun 29, 16:39 UTCJun 29, 16:50 UTC10m
2026-06-28 CES7708 - Jun 28, 23:50 UTCJun 29, 14:34 UTC14h 45m
2026-06-28 CES7707 - Jun 28, 17:39 UTCJun 28, 21:10 UTC3h 30m
2026-06-26 CES2839 - Jun 26, 18:44 UTCJun 27, 01:39 UTC6h 55m
2026-06-24 CES2804 BKK → NKG Jun 24, 19:34 UTCJun 24, 21:54 UTC2h 20m
2026-06-24 CES2803 - Jun 24, 15:44 UTCJun 24, 18:05 UTC2h 20m
2026-06-22 CES2173 - Jun 22, 06:00 UTCJun 22, 06:15 UTC15m
2026-06-21 CES6340 - Jun 21, 10:49 UTCJun 21, 15:09 UTC4h 20m
2026-06-21 CES6339 - Jun 21, 08:40 UTCJun 21, 08:49 UTC10m
2026-06-20 CES6340 - Jun 20, 05:39 UTCJun 21, 01:10 UTC19h 30m
2026-06-20 CES6329 - Jun 20, 00:19 UTCJun 20, 15:04 UTC14h 45m
2026-06-19 CES6329 - Jun 19, 02:09 UTCJun 19, 16:09 UTC14h 0m
2026-06-18 CES6329 - Jun 18, 02:05 UTCJun 18, 02:20 UTC15m
2026-06-17 CES6329 - Jun 17, 05:40 UTCJun 18, 02:20 UTC20h 40m
2026-06-17 CES6329 - Jun 17, 00:30 UTCJun 17, 05:40 UTC5h 10m
2026-06-14 CES2804 BKK → NKG Jun 14, 19:50 UTCJun 14, 22:10 UTC2h 20m
2026-06-14 CES2803 - Jun 14, 16:10 UTCJun 14, 18:30 UTC2h 20m
2026-06-12 CES2804 BKK → NKG Jun 12, 19:40 UTCJun 12, 20:10 UTC30m
2026-06-12 CES2803 - Jun 12, 16:15 UTCJun 12, 18:05 UTC1h 50m
2026-06-12 CES2672 CSX → WUX Jun 12, 03:30 UTCJun 12, 03:50 UTC20m
2026-06-11 CES2951 NKG → ZUH Jun 11, 04:45 UTCJun 11, 04:55 UTC10m
2026-06-10 CES2962 BKK → NKG Jun 10, 09:45 UTCJun 10, 10:05 UTC20m
2026-06-10 CES2961 WUX → MFM Jun 10, 08:10 UTCJun 10, 08:20 UTC10m
2026-06-09 CES2937 WUX → SZX Jun 9, 11:10 UTCJun 9, 11:35 UTC25m
2026-06-06 CES2962 BKK → NKG Jun 6, 09:50 UTCJun 6, 11:05 UTC1h 15m
2026-06-04 CES2662 ZUH → PKX Jun 4, 12:40 UTCJun 4, 12:55 UTC15m
2026-06-04 CES2711 NKG → ZUH Jun 4, 11:00 UTCJun 4, 11:20 UTC20m
2026-06-03 CES2970 KUL → NKG Jun 3, 17:15 UTCJun 4, 05:55 UTC12h 40m
2026-06-03 CES2969 NKG → KUL Jun 3, 11:50 UTCJun 3, 15:45 UTC3h 55m

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-306F page for operator, model, and routing details .

Mode-S 781619 frequently asked

What is Mode-S code 781619?
781619 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-306F.
Where is Mode-S 781619 registered?
Mode-S code 781619 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781619 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781619, octal 36013031, decimal 7,869,977.
What flights does 781619 operate?
Mode-S 781619 has broadcast 20 distinct callsigns, including CES6329, CES6340, CES2804, CES2803, CES2970.