Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781931

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30ES · AIRBUS A-320neo

Hex
781931
Octal
36014461
Decimal
7,870,769
Country
CN
Tail
B-30ES
Type
A20N
No current signal · last broadcast Jul 24, 21:30 UTC
Flights observed
46
Distinct callsigns
20
Country
CN
Last broadcast
Jul 24, 21:30 UTC

Last known position

Most recent position reported by Mode-S 781931.

Country allocation

The ICAO 24-bit address 781931 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
CES2969 China Eastern Airlines 6 2026-07-24
CES7707 China Eastern Airlines 5 2026-07-22
CES2970 China Eastern Airlines 5 2026-07-24
CES7706 China Eastern Airlines 4 2026-07-23
CES7705 China Eastern Airlines 4 2026-07-23
CES7708 China Eastern Airlines 3 2026-07-22
CES6340 - 2 2026-07-11
CES2840 - 2 2026-07-01
CES6956 - 1 2026-07-10
CES6733 - 1 2026-07-11
CES6339 - 1 2026-07-11
CES6329 - 1 2026-07-11
CES580 - 1 2026-06-20
CES579 - 1 2026-06-20
CES5326 - 1 2026-07-12
CES2951 - 1 2026-06-16
CES2878 - 1 2026-07-20
CES2877 China Eastern Airlines 1 2026-07-20
CES2868 - 1 2026-06-22
CES2867 - 1 2026-06-22

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-07-24 CES2970 KUL → NKG Jul 24, 17:50 UTCJul 24, 21:30 UTC3h 40m
2026-07-24 CES2969 NKG → KUL Jul 24, 12:30 UTCJul 24, 16:10 UTC3h 40m
2026-07-23 CES7706 SIN → NKG Jul 23, 09:45 UTCJul 23, 13:20 UTC3h 35m
2026-07-23 CES7705 NKG → SIN Jul 23, 04:35 UTCJul 23, 08:15 UTC3h 40m
2026-07-22 CES7708 KUL → NKG Jul 22, 02:25 UTCJul 22, 02:40 UTC15m
2026-07-22 CES7707 NKG → KUL Jul 22, 00:35 UTCJul 22, 01:10 UTC35m
2026-07-21 CES7707 NKG → KUL Jul 21, 20:55 UTCJul 21, 22:15 UTC1h 20m
2026-07-21 CES7707 NKG → KUL Jul 21, 17:30 UTCJul 21, 17:55 UTC25m
2026-07-20 CES2878 - Jul 20, 16:25 UTCJul 20, 16:35 UTC10m
2026-07-20 CES2877 NKG → SZX Jul 20, 14:50 UTCJul 20, 15:20 UTC30m
2026-07-19 CES7706 SIN → NKG Jul 19, 09:45 UTCJul 20, 01:35 UTC15h 50m
2026-07-19 CES7705 NKG → SIN Jul 19, 07:55 UTCJul 19, 08:05 UTC10m
2026-07-19 CES7705 NKG → SIN Jul 19, 04:50 UTCJul 19, 05:00 UTC10m
2026-07-17 CES2839 - Jul 17, 18:29 UTCJul 18, 01:34 UTC7h 5m
2026-07-16 CES7706 - Jul 16, 11:05 UTCJul 16, 14:35 UTC3h 30m
2026-07-16 CES7705 - Jul 16, 05:50 UTCJul 16, 09:40 UTC3h 50m
2026-07-12 CES5326 - Jul 12, 11:05 UTCJul 12, 11:15 UTC10m
2026-07-11 CES6733 - Jul 11, 23:00 UTCJul 11, 23:10 UTC10m
2026-07-11 CES6340 - Jul 11, 17:30 UTCJul 11, 17:45 UTC15m
2026-07-11 CES6340 - Jul 11, 14:40 UTCJul 11, 15:10 UTC30m
2026-07-11 CES6339 - Jul 11, 08:40 UTCJul 11, 08:50 UTC10m
2026-07-11 CES6329 - Jul 11, 00:30 UTCJul 11, 00:40 UTC10m
2026-07-10 CES6956 - Jul 10, 16:55 UTCJul 10, 17:10 UTC15m
2026-07-06 CES7708 - Jul 6, 23:35 UTCJul 7, 03:40 UTC4h 5m
2026-07-06 CES7707 - Jul 6, 21:35 UTCJul 6, 21:55 UTC20m
2026-07-01 CES2840 - Jul 1, 01:15 UTCJul 1, 23:45 UTC22h 30m
2026-06-30 CES2840 - Jun 30, 19:05 UTCJul 1, 01:30 UTC6h 25m
2026-06-27 CES7708 - Jun 27, 23:39 UTCJun 28, 03:50 UTC4h 10m
2026-06-27 CES7707 - Jun 27, 20:34 UTCJun 27, 20:49 UTC15m
2026-06-26 CES7706 - Jun 26, 09:50 UTCJun 26, 13:24 UTC3h 35m
2026-06-25 CES2970 KUL → NKG Jun 25, 17:44 UTCJun 26, 07:50 UTC14h 5m
2026-06-25 CES2969 - Jun 25, 12:30 UTCJun 25, 16:09 UTC3h 40m
2026-06-22 CES2868 - Jun 22, 04:54 UTCJun 22, 05:04 UTC10m
2026-06-22 CES2867 - Jun 22, 03:19 UTCJun 22, 03:40 UTC20m
2026-06-20 CES580 - Jun 20, 03:54 UTCJun 20, 04:20 UTC25m
2026-06-20 CES579 - Jun 20, 01:19 UTCJun 20, 01:50 UTC30m
2026-06-19 CES2970 KUL → NKG Jun 19, 17:09 UTCJun 19, 20:44 UTC3h 35m
2026-06-19 CES2969 - Jun 19, 11:59 UTCJun 19, 15:49 UTC3h 50m
2026-06-16 CES2951 - Jun 16, 04:39 UTCJun 16, 05:10 UTC30m
2026-06-16 CES2661 - Jun 16, 02:40 UTCJun 16, 03:20 UTC40m
2026-06-15 CES2662 - Jun 15, 15:25 UTCJun 15, 15:40 UTC15m
2026-06-14 CES2970 KUL → NKG Jun 14, 17:00 UTCJun 15, 02:20 UTC9h 20m
2026-06-14 CES2969 - Jun 14, 15:10 UTCJun 14, 15:30 UTC20m
2026-06-14 CES2969 - Jun 14, 12:45 UTCJun 14, 13:00 UTC15m
2026-06-11 CES2970 KUL → NKG Jun 11, 17:15 UTCJun 11, 20:40 UTC3h 25m
2026-06-11 CES2969 NKG → KUL Jun 11, 11:55 UTCJun 11, 15:50 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-30ES page for operator, model, and routing details .

Mode-S 781931 frequently asked

What is Mode-S code 781931?
781931 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30ES.
Where is Mode-S 781931 registered?
Mode-S code 781931 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781931 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781931, octal 36014461, decimal 7,870,769.
What flights does 781931 operate?
Mode-S 781931 has broadcast 20 distinct callsigns, including CES2969, CES7707, CES2970, CES7706, CES7705.