Apparatus

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sensors Mode-S transponder

780254

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5228 · BOEING 737-700

Hex
780254
Octal
36001124
Decimal
7,864,916
Country
CN
Tail
B-5228
Type
B737
No current signal · last broadcast Jul 26, 16:45 UTC
Flights observed
73
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 16:45 UTC

Last known position

Most recent position reported by Mode-S 780254.

Country allocation

The ICAO 24-bit address 780254 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
CCA9799 Air China 6 2026-07-16
CCA9708 Air China 6 2026-07-26
CCA9707 Air China 6 2026-07-26
CCA2812 Air China 6 2026-06-05
CCA2888 Air China 5 2026-07-20
CCA9616 - 2 2026-07-16
CCA9615 - 2 2026-07-16
CCA2820 - 2 2026-06-29
CCA2811 Air China 2 2026-04-15
CCA1887 Air China 2 2026-07-22
CCA1283 - 2 2026-07-13
CCA970S - 1 2026-07-07
CCA970R - 1 2026-07-08
CCA9709 - 1 2026-07-05
CCA9637 - 1 2026-07-23
CCA8215 - 1 2026-07-10
CCA8212 - 1 2026-07-10
CCA2924 Air China 1 2026-05-06
CCA2922 - 1 2026-06-27
CCA2877 Air China 1 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CCA9708 CTU → SHA Jul 26, 16:25 UTCJul 26, 16:45 UTC20m
2026-07-26 CCA9707 SHA → CTU Jul 26, 08:10 UTCJul 26, 08:25 UTC15m
2026-07-26 CCA1238 HMI → PEK Jul 26, 05:15 UTCJul 26, 05:35 UTC20m
2026-07-25 CCA1237 PEK → HMI Jul 25, 22:30 UTCJul 25, 22:50 UTC20m
2026-07-25 CCA1456 - Jul 25, 10:40 UTCJul 25, 16:00 UTC5h 20m
2026-07-25 CCA1537 PEK → KHN Jul 25, 00:55 UTCJul 25, 01:20 UTC25m
2026-07-24 CCA9708 CTU → SHA Jul 24, 16:20 UTCJul 24, 16:40 UTC20m
2026-07-24 CCA9707 SHA → CTU Jul 24, 08:10 UTCJul 24, 08:20 UTC10m
2026-07-24 CCA1491 PEK → WMT Jul 24, 00:25 UTCJul 24, 00:45 UTC20m
2026-07-23 CCA9708 CTU → SHA Jul 23, 16:35 UTCJul 23, 16:55 UTC20m
2026-07-23 CCA9707 SHA → CTU Jul 23, 08:05 UTCJul 23, 08:25 UTC20m
2026-07-23 CCA9637 - Jul 23, 00:20 UTCJul 23, 00:30 UTC10m
2026-07-22 CCA1887 PEK → JDZ Jul 22, 14:05 UTCJul 22, 14:15 UTC10m
2026-07-20 CCA2877 TSN → KWE Jul 20, 13:50 UTCJul 20, 14:20 UTC30m
2026-07-20 CCA2888 ZUH → TSN Jul 20, 04:30 UTCJul 20, 04:40 UTC10m
2026-07-19 CCA1971 PEK → CSX Jul 19, 08:45 UTCJul 19, 08:55 UTC10m
2026-07-19 CCA1490 - Jul 19, 06:00 UTCJul 19, 06:10 UTC10m
2026-07-19 CCA1489 - Jul 19, 01:15 UTCJul 19, 01:35 UTC20m
2026-07-18 CCA1458 - Jul 18, 08:35 UTCJul 18, 13:30 UTC4h 55m
2026-07-17 CCA1437 PEK → CKG Jul 17, 23:20 UTCJul 17, 23:45 UTC25m
2026-07-16 CCA9799 PEK → DLU Jul 16, 23:05 UTCJul 16, 23:25 UTC20m
2026-07-16 CCA9616 - Jul 16, 13:49 UTCJul 16, 14:10 UTC20m
2026-07-16 CCA9615 - Jul 16, 09:00 UTCJul 16, 09:25 UTC25m
2026-07-15 CCA9799 - Jul 15, 23:00 UTCJul 15, 23:20 UTC20m
2026-07-15 CCA9708 - Jul 15, 16:10 UTCJul 15, 16:30 UTC20m
2026-07-15 CCA9707 - Jul 15, 08:10 UTCJul 15, 08:25 UTC15m
2026-07-15 CCA1290 - Jul 15, 05:40 UTCJul 15, 06:15 UTC35m
2026-07-15 CCA1289 - Jul 15, 01:25 UTCJul 15, 01:45 UTC20m
2026-07-14 CCA9616 - Jul 14, 13:55 UTCJul 14, 14:10 UTC15m
2026-07-14 CCA9615 - Jul 14, 09:05 UTCJul 14, 09:30 UTC25m
2026-07-13 CCA9799 - Jul 13, 23:05 UTCJul 13, 23:30 UTC25m
2026-07-13 CCA1283 - Jul 13, 08:55 UTCJul 13, 09:15 UTC20m
2026-07-12 CCA9799 - Jul 12, 23:05 UTCJul 12, 23:30 UTC25m
2026-07-12 CCA1283 - Jul 12, 09:05 UTCJul 12, 09:30 UTC25m
2026-07-12 CCA9799 - Jul 12, 00:20 UTCJul 12, 00:40 UTC20m
2026-07-11 CCA1935 - Jul 11, 03:10 UTCJul 11, 03:30 UTC20m
2026-07-10 CCA8215 - Jul 10, 17:40 UTCJul 10, 17:50 UTC10m
2026-07-10 CCA8212 - Jul 10, 10:50 UTCJul 10, 11:10 UTC20m
2026-07-09 CCA9799 - Jul 9, 23:05 UTCJul 9, 23:25 UTC20m
2026-07-09 CCA9708 - Jul 9, 15:50 UTCJul 9, 16:00 UTC10m
2026-07-09 CCA9707 - Jul 9, 07:50 UTCJul 9, 08:05 UTC15m
2026-07-09 CCA1218 - Jul 9, 02:05 UTCJul 9, 02:25 UTC20m
2026-07-08 CCA1217 - Jul 8, 13:00 UTCJul 8, 13:15 UTC15m
2026-07-08 CCA970R - Jul 8, 06:55 UTCJul 8, 07:15 UTC20m
2026-07-07 CCA970S - Jul 7, 22:45 UTCJul 7, 23:00 UTC15m
2026-07-07 CCA1899 - Jul 7, 01:50 UTCJul 7, 02:05 UTC15m
2026-07-06 CCA1887 - Jul 6, 10:05 UTCJul 6, 10:15 UTC10m
2026-07-05 CCA9709 - Jul 5, 22:45 UTCJul 5, 23:05 UTC20m
2026-07-05 CCA1222 - Jul 5, 13:45 UTCJul 5, 14:00 UTC15m
2026-07-05 CCA1221 - Jul 5, 08:50 UTCJul 5, 09:10 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-5228 page for operator, model, and routing details .

Mode-S 780254 frequently asked

What is Mode-S code 780254?
780254 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5228.
Where is Mode-S 780254 registered?
Mode-S code 780254 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780254 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780254, octal 36001124, decimal 7,864,916.
What flights does 780254 operate?
Mode-S 780254 has broadcast 20 distinct callsigns, including CCA9799, CCA9708, CCA9707, CCA2812, CCA2888.