Apparatus

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sensors Mode-S transponder

78029E

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-2425 · BOEING 747-400

Hex
78029E
Octal
36001236
Decimal
7,864,990
Country
CN
Tail
B-2425
Type
B744
No current signal · last broadcast 17h ago
Flights observed
91
Distinct callsigns
10
Country
CN
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 78029E.

Country allocation

The ICAO 24-bit address 78029E 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 10 distinct

Callsign Airline Flights Last seen
CSS181 SF Airlines 17 2026-05-25
CSS102 SF Airlines 17 2026-05-28
CSS101 SF Airlines 15 2026-05-27
CSS182 SF Airlines 11 2026-05-26
CSS118 - 9 2026-05-02
CSS117 - 7 2026-05-02
CSS120 SF Airlines 5 2026-05-29
CSS111 SF Airlines 5 2026-05-28
CSS125 - 3 2026-05-17
CSS126 - 2 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CSS120 ALA → EHU May 29, 10:00 UTCMay 29, 12:25 UTC2h 25m
2026-05-28 CSS111 EHU → LGG May 28, 13:15 UTCMay 29, 06:35 UTC17h 20m
2026-05-28 CSS111 EHU → LGG May 28, 09:35 UTCMay 29, 06:35 UTC21h 0m
2026-05-28 CSS102 FRA → LAX May 28, 07:35 UTCMay 29, 06:35 UTC23h 0m
2026-05-27 CSS101 HGH → LAX May 27, 22:35 UTCMay 28, 04:50 UTC6h 15m
2026-05-26 CSS182 JFK → ANC May 26, 03:30 UTCMay 26, 11:00 UTC7h 30m
2026-05-25 CSS182 JFK → ANC May 25, 17:25 UTCMay 26, 00:29 UTC7h 4m
2026-05-25 CSS181 ANC → JFK May 25, 09:15 UTCMay 25, 15:20 UTC6h 5m
2026-05-24 CSS181 ANC → JFK May 24, 23:15 UTCMay 24, 23:30 UTC15m
2026-05-24 CSS102 FRA → LAX May 24, 00:10 UTCMay 24, 23:30 UTC23h 20m
2026-05-23 CSS102 FRA → LAX May 23, 19:00 UTCMay 24, 00:50 UTC5h 50m
2026-05-23 CSS101 HGH → LAX May 23, 09:05 UTCMay 23, 15:35 UTC6h 30m
2026-05-21 CSS102 FRA → LAX May 21, 17:50 UTCMay 21, 23:45 UTC5h 55m
2026-05-21 CSS101 HGH → LAX May 21, 07:40 UTCMay 21, 14:20 UTC6h 40m
2026-05-19 CSS102 FRA → LAX May 19, 16:00 UTCMay 19, 21:55 UTC5h 55m
2026-05-19 CSS101 HGH → LAX May 19, 06:10 UTCMay 19, 12:40 UTC6h 30m
2026-05-17 CSS126 - May 17, 19:40 UTCMay 18, 01:10 UTC5h 30m
2026-05-17 CSS125 - May 17, 09:35 UTCMay 17, 16:01 UTC6h 25m
2026-05-16 CSS125 - May 16, 17:35 UTCMay 17, 16:01 UTC22h 25m
2026-05-16 CSS126 - May 16, 17:01 UTCMay 17, 15:31 UTC22h 30m
2026-05-16 CSS125 - May 16, 07:16 UTCMay 16, 13:41 UTC6h 25m
2026-05-15 CSS120 ALA → EHU May 15, 07:35 UTCMay 16, 07:31 UTC23h 55m
2026-05-15 CSS120 ALA → EHU May 15, 06:10 UTCMay 15, 08:40 UTC2h 30m
2026-05-14 CSS111 EHU → LGG May 14, 20:25 UTCMay 15, 02:55 UTC6h 30m
2026-05-13 CSS102 FRA → LAX May 13, 15:20 UTCMay 13, 21:20 UTC6h 0m
2026-05-13 CSS101 HGH → LAX May 13, 04:10 UTCMay 13, 10:50 UTC6h 40m
2026-05-11 CSS182 JFK → ANC May 11, 19:05 UTCMay 11, 20:15 UTC1h 10m
2026-05-11 CSS182 JFK → ANC May 11, 10:35 UTCMay 11, 17:35 UTC7h 1m
2026-05-11 CSS181 ANC → JFK May 11, 02:30 UTCMay 11, 08:35 UTC6h 5m
2026-05-10 CSS181 ANC → JFK May 10, 17:20 UTCMay 11, 00:30 UTC7h 10m
2026-05-10 CSS181 ANC → JFK May 10, 00:00 UTCMay 10, 23:29 UTC23h 30m
2026-05-09 CSS102 FRA → LAX May 9, 19:35 UTCMay 10, 18:35 UTC23h 0m
2026-05-09 CSS102 FRA → LAX May 9, 18:50 UTCMay 10, 17:30 UTC22h 40m
2026-05-09 CSS101 HGH → LAX May 9, 08:20 UTCMay 9, 09:05 UTC45m
2026-05-08 CSS120 ALA → EHU May 8, 06:25 UTCMay 8, 08:44 UTC2h 20m
2026-05-07 CSS111 EHU → LGG May 7, 20:15 UTCMay 8, 03:19 UTC7h 4m
2026-05-06 CSS102 FRA → LAX May 6, 14:40 UTCMay 6, 16:50 UTC2h 10m
2026-05-06 CSS101 HGH → LAX May 6, 06:40 UTCMay 6, 11:30 UTC4h 50m
2026-05-04 CSS182 JFK → ANC May 4, 19:45 UTCMay 5, 03:50 UTC8h 5m
2026-05-04 CSS182 JFK → ANC May 4, 10:40 UTCMay 4, 17:40 UTC7h 0m
2026-05-04 CSS181 ANC → JFK May 4, 02:19 UTCMay 4, 08:15 UTC5h 55m
2026-05-03 CSS181 ANC → JFK May 3, 17:24 UTCMay 4, 00:19 UTC6h 55m
2026-05-03 CSS181 ANC → JFK May 3, 00:20 UTCMay 3, 23:30 UTC23h 9m
2026-05-02 CSS181 ANC → JFK May 2, 22:25 UTCMay 3, 18:34 UTC20h 9m
2026-05-02 CSS118 - May 2, 19:35 UTCMay 3, 18:34 UTC22h 59m
2026-05-02 CSS118 - May 2, 18:45 UTCMay 3, 17:29 UTC22h 44m
2026-05-02 CSS117 - May 2, 08:25 UTCMay 2, 15:10 UTC6h 45m
2026-04-30 CSS102 FRA → LAX Apr 30, 18:35 UTCApr 30, 22:25 UTC3h 50m
2026-04-29 CSS101 HGH → LAX Apr 29, 20:15 UTCApr 30, 15:00 UTC18h 45m
2026-04-29 CSS101 HGH → LAX Apr 29, 15:35 UTCApr 30, 15:00 UTC23h 25m

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-2425 page for operator, model, and routing details .

Mode-S 78029E frequently asked

What is Mode-S code 78029E?
78029E is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-2425.
Where is Mode-S 78029E registered?
Mode-S code 78029E is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78029E broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78029E, octal 36001236, decimal 7,864,990.
What flights does 78029E operate?
Mode-S 78029E has broadcast 10 distinct callsigns, including CSS181, CSS102, CSS101, CSS182, CSS118.