Apparatus

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sensors Mode-S transponder

780253

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5227 · BOEING 737-700

Hex
780253
Octal
36001123
Decimal
7,864,915
Country
CN
Tail
B-5227
Type
B737
No current signal · last broadcast 9h ago
Flights observed
104
Distinct callsigns
20
Country
CN
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 780253.

Country allocation

The ICAO 24-bit address 780253 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
CCA2820 - 6 2026-07-13
CCA2812 - 6 2026-07-14
CCA1143 - 6 2026-06-13
CCA9675 Air China 4 2026-05-04
CCA2888 - 4 2026-07-10
CCA2811 - 4 2026-07-11
CCA1891 - 4 2026-06-13
CCA9676 Air China 3 2026-05-04
CCA1283 - 3 2026-05-26
CCA1262 Air China 3 2026-06-10
CCA1261 Air China 3 2026-06-10
CCA1144 - 3 2026-06-13
CCA1117 Air China 3 2026-05-26
CCA2819 - 2 2026-06-24
CCA1899 Air China 2 2026-06-12
CCA1499 Air China 2 2026-06-08
CCA1495 Air China 2 2026-05-02
CCA1284 - 2 2026-05-21
CCA1234 - 2 2026-06-09
CCA1233 - 2 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CCA2812 - Jul 14, 13:10 UTCJul 14, 13:20 UTC10m
2026-07-13 CCA2820 - Jul 13, 08:30 UTCJul 13, 08:40 UTC10m
2026-07-11 CCA2812 - Jul 11, 12:05 UTCJul 11, 12:15 UTC10m
2026-07-11 CCA2811 - Jul 11, 10:45 UTCJul 11, 10:55 UTC10m
2026-07-10 CCA2877 - Jul 10, 10:50 UTCJul 10, 11:15 UTC25m
2026-07-10 CCA2888 - Jul 10, 04:35 UTCJul 10, 04:45 UTC10m
2026-07-04 CCA2814 - Jul 4, 05:30 UTCJul 4, 05:40 UTC10m
2026-07-04 CCA2813 - Jul 4, 03:05 UTCJul 4, 03:25 UTC20m
2026-07-03 CCA2812 - Jul 3, 13:10 UTCJul 3, 13:20 UTC10m
2026-07-03 CCA2811 - Jul 3, 11:20 UTCJul 3, 11:30 UTC10m
2026-07-02 CCA2888 - Jul 2, 04:35 UTCJul 2, 04:45 UTC10m
2026-07-01 CCA2820 - Jul 1, 08:30 UTCJul 1, 08:40 UTC10m
2026-06-29 CCA2812 - Jun 29, 12:55 UTCJun 29, 13:04 UTC10m
2026-06-29 CCA2811 - Jun 29, 10:50 UTCJun 29, 10:59 UTC10m
2026-06-27 CCA2963 TSN → CTU Jun 27, 07:59 UTCJun 27, 08:29 UTC30m
2026-06-24 CCA2820 - Jun 24, 09:34 UTCJun 24, 09:45 UTC10m
2026-06-24 CCA2819 - Jun 24, 07:20 UTCJun 24, 07:30 UTC10m
2026-06-22 CCA2820 - Jun 22, 08:29 UTCJun 22, 08:40 UTC10m
2026-06-21 CCA2812 - Jun 21, 11:44 UTCJun 21, 11:55 UTC10m
2026-06-21 CCA2811 - Jun 21, 09:35 UTCJun 21, 09:49 UTC15m
2026-06-14 CCA2812 SZX → TSN Jun 14, 13:45 UTCJun 14, 14:00 UTC15m
2026-06-13 CCA1891 - Jun 13, 05:40 UTCJun 13, 05:50 UTC10m
2026-06-13 CCA1144 - Jun 13, 03:05 UTCJun 13, 03:25 UTC20m
2026-06-13 CCA1143 - Jun 13, 00:25 UTCJun 13, 00:50 UTC25m
2026-06-12 CCA1222 LHW → PEK Jun 12, 13:10 UTCJun 12, 13:30 UTC20m
2026-06-12 CCA1221 PEK → LHW Jun 12, 08:40 UTCJun 12, 09:15 UTC35m
2026-06-12 CCA1899 PEK → NTG Jun 12, 00:35 UTCJun 12, 00:45 UTC10m
2026-06-10 CCA1262 XNN → PEK Jun 10, 12:25 UTCJun 10, 12:45 UTC20m
2026-06-10 CCA1261 PEK → XNN Jun 10, 07:25 UTCJun 10, 07:55 UTC30m
2026-06-09 CCA1234 - Jun 9, 07:40 UTCJun 9, 08:00 UTC20m
2026-06-08 CCA1233 - Jun 8, 23:30 UTCJun 8, 23:50 UTC20m
2026-06-08 CCA1499 PEK → DLU Jun 8, 06:30 UTCJun 8, 06:55 UTC25m
2026-06-07 CCA1449 PEK → CKG Jun 7, 11:10 UTCJun 7, 11:30 UTC20m
2026-06-07 CCA1955 PEK → WGN Jun 7, 02:04 UTCJun 7, 02:19 UTC15m
2026-06-06 CCA1712 PEK → HGH Jun 6, 04:35 UTCJun 6, 04:50 UTC15m
2026-06-05 CCA1545 PEK → YNT Jun 5, 00:30 UTCJun 5, 00:40 UTC10m
2026-06-04 CCA1455 - Jun 4, 10:45 UTCJun 4, 11:05 UTC20m
2026-06-03 CCA1464 KWE → PEK Jun 3, 14:50 UTCJun 3, 15:10 UTC20m
2026-06-03 CCA1463 PEK → KWE Jun 3, 08:15 UTCJun 3, 08:40 UTC25m
2026-05-30 CCA1205 PEK → XIY May 30, 12:15 UTCMay 30, 12:25 UTC10m
2026-05-30 CCA1272 LHW → PEK May 30, 08:45 UTCMay 30, 09:05 UTC20m
2026-05-30 CCA1271 PEK → LHW May 30, 04:00 UTCMay 30, 04:25 UTC25m
2026-05-29 CCA1119 - May 29, 07:20 UTCMay 29, 07:40 UTC20m
2026-05-27 CCA1119 - May 27, 10:10 UTCMay 27, 10:30 UTC20m
2026-05-27 CCA1899 PEK → NTG May 27, 00:34 UTCMay 27, 00:44 UTC10m
2026-05-26 CCA1283 - May 26, 08:30 UTCMay 26, 08:54 UTC25m
2026-05-26 CCA1118 DSN → PEK May 26, 06:25 UTCMay 26, 06:44 UTC20m
2026-05-26 CCA1117 PEK → DSN May 26, 03:09 UTCMay 26, 03:35 UTC25m
2026-05-21 CCA1135 - May 21, 23:40 UTCMay 21, 23:50 UTC10m
2026-05-21 CCA1284 - May 21, 13:05 UTCMay 21, 13:15 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-5227 page for operator, model, and routing details .

Mode-S 780253 frequently asked

What is Mode-S code 780253?
780253 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5227.
Where is Mode-S 780253 registered?
Mode-S code 780253 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780253 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780253, octal 36001123, decimal 7,864,915.
What flights does 780253 operate?
Mode-S 780253 has broadcast 20 distinct callsigns, including CCA2820, CCA2812, CCA1143, CCA9675, CCA2888.