Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781ED3

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-222Z · BOEING 777-200LR

Hex
781ED3
Octal
36017323
Decimal
7,872,211
Country
CN
Tail
B-222Z
Type
B77L
No current signal · last broadcast 1h ago
Flights observed
115
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 781ED3.

Country allocation

The ICAO 24-bit address 781ED3 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
CKK227 China Cargo Airlines 12 2026-05-21
CKK221 China Cargo Airlines 10 2026-05-31
CKK228 China Cargo Airlines 9 2026-05-21
CKK225 China Cargo Airlines 9 2026-05-27
CKK215 China Cargo Airlines 8 2026-05-09
CKK222 China Cargo Airlines 7 2026-06-01
CKK624 China Cargo Airlines 6 2026-04-17
CKK261 China Cargo Airlines 5 2026-05-28
CKK226 China Cargo Airlines 5 2026-05-27
CKK216 China Cargo Airlines 5 2026-05-09
CKK224 China Cargo Airlines 4 2026-06-02
CKK625 China Cargo Airlines 3 2026-04-19
CKK623 China Cargo Airlines 3 2026-04-16
CKK241 China Cargo Airlines 3 2026-05-29
CKK231 China Cargo Airlines 3 2026-04-27
CKK223 China Cargo Airlines 3 2026-06-01
CKK288 - 2 2026-05-29
CKK274 - 2 2026-05-17
CKK273 - 2 2026-05-16
CKK262 China Cargo Airlines 2 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 CKK224 LAX → PVG Jun 2, 09:10 UTCJun 2, 21:25 UTC12h 15m
2026-06-01 CKK223 PVG → LAX Jun 1, 12:05 UTCJun 2, 06:40 UTC18h 35m
2026-06-01 CKK222 LAX → PVG Jun 1, 02:50 UTCJun 1, 22:05 UTC19h 15m
2026-06-01 CKK222 LAX → PVG Jun 1, 02:25 UTCJun 1, 22:05 UTC19h 40m
2026-05-31 CKK221 PVG → LAX May 31, 08:25 UTCMay 31, 23:25 UTC15h 0m
2026-05-31 CKK221 PVG → LAX May 31, 00:50 UTCMay 31, 23:25 UTC22h 35m
2026-05-30 CKK221 PVG → LAX May 30, 23:30 UTCMay 31, 22:45 UTC23h 15m
2026-05-30 CKK222 LAX → PVG May 30, 20:15 UTCMay 31, 14:45 UTC18h 30m
2026-05-30 CKK221 PVG → LAX May 30, 01:10 UTCMay 30, 18:00 UTC16h 50m
2026-05-29 CKK241 PVG → NRT May 29, 12:45 UTCMay 29, 22:35 UTC9h 50m
2026-05-29 CKK288 - May 29, 09:20 UTCMay 29, 09:35 UTC15m
2026-05-29 CKK288 - May 29, 06:55 UTCMay 29, 07:20 UTC25m
2026-05-28 CKK262 TPE → PVG May 28, 18:50 UTCMay 29, 01:25 UTC6h 35m
2026-05-28 CKK261 PVG → TPE May 28, 06:20 UTCMay 28, 16:50 UTC10h 30m
2026-05-27 CKK226 LAX → PVG May 27, 18:50 UTCMay 28, 16:50 UTC22h 0m
2026-05-27 CKK226 LAX → PVG May 27, 17:50 UTCMay 28, 16:30 UTC22h 40m
2026-05-27 CKK225 PVG → LAX May 27, 09:30 UTCMay 27, 15:00 UTC5h 30m
2026-05-26 CKK225 PVG → LAX May 26, 18:30 UTCMay 27, 08:10 UTC13h 40m
2026-05-26 CKK261 PVG → TPE May 26, 07:05 UTCMay 26, 16:35 UTC9h 30m
2026-05-25 CKK226 LAX → PVG May 25, 18:50 UTCMay 26, 16:35 UTC21h 44m
2026-05-25 CKK225 PVG → LAX May 25, 10:40 UTCMay 25, 16:00 UTC5h 20m
2026-05-25 CKK225 PVG → LAX May 25, 08:05 UTCMay 25, 09:15 UTC1h 10m
2026-05-23 CKK226 LAX → PVG May 23, 18:35 UTCMay 24, 07:20 UTC12h 45m
2026-05-23 CKK225 PVG → LAX May 23, 09:45 UTCMay 23, 15:15 UTC5h 30m
2026-05-22 CKK225 PVG → LAX May 22, 18:40 UTCMay 23, 08:20 UTC13h 39m
2026-05-22 CKK261 PVG → TPE May 22, 16:05 UTCMay 22, 16:45 UTC40m
2026-05-21 CKK228 ORD → PVG May 21, 21:00 UTCMay 22, 10:15 UTC13h 15m
2026-05-21 CKK227 PVG → ANC May 21, 12:50 UTCMay 21, 18:15 UTC5h 25m
2026-05-20 CKK227 PVG → ANC May 20, 18:30 UTCMay 21, 11:25 UTC16h 55m
2026-05-20 CKK227 PVG → ANC May 20, 14:50 UTCMay 21, 11:25 UTC20h 35m
2026-05-20 CKK204 - May 20, 12:50 UTCMay 21, 11:25 UTC22h 35m
2026-05-19 CKK203 - May 19, 23:40 UTCMay 20, 10:00 UTC10h 21m
2026-05-17 CKK274 - May 17, 04:40 UTCMay 17, 07:35 UTC2h 55m
2026-05-16 CKK273 - May 16, 07:16 UTCMay 17, 01:40 UTC18h 25m
2026-05-15 CKK228 ORD → PVG May 15, 09:50 UTCMay 16, 04:30 UTC18h 39m
2026-05-15 CKK228 ORD → PVG May 15, 04:50 UTCMay 16, 04:30 UTC23h 39m
2026-05-15 CKK228 ORD → PVG May 15, 02:50 UTCMay 16, 01:40 UTC22h 49m
2026-05-14 CKK228 ORD → PVG May 14, 22:25 UTCMay 15, 11:10 UTC12h 45m
2026-05-14 CKK227 PVG → ANC May 14, 13:25 UTCMay 14, 18:55 UTC5h 30m
2026-05-13 CKK227 PVG → ANC May 13, 18:50 UTCMay 14, 11:35 UTC16h 45m
2026-05-13 CKK274 - May 13, 06:40 UTCMay 13, 16:45 UTC10h 5m
2026-05-13 CKK273 - May 13, 00:05 UTCMay 13, 02:25 UTC2h 20m
2026-05-10 CKK222 LAX → PVG May 10, 20:30 UTCMay 11, 08:40 UTC12h 10m
2026-05-10 CKK221 PVG → LAX May 10, 08:15 UTCMay 10, 18:09 UTC9h 55m
2026-05-09 CKK221 PVG → LAX May 9, 18:50 UTCMay 10, 18:09 UTC23h 20m
2026-05-09 CKK216 CDG → PVG May 9, 16:40 UTCMay 10, 09:35 UTC16h 55m
2026-05-09 CKK215 PVG → CDG May 9, 03:30 UTCMay 9, 13:25 UTC9h 55m
2026-05-08 CKK215 PVG → CDG May 8, 17:10 UTCMay 9, 13:25 UTC20h 15m
2026-05-08 CKK215 PVG → CDG May 8, 15:15 UTCMay 9, 13:25 UTC22h 10m
2026-05-08 CKK215 PVG → CDG May 8, 12:49 UTCMay 9, 12:45 UTC23h 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-222Z page for operator, model, and routing details .

Mode-S 781ED3 frequently asked

What is Mode-S code 781ED3?
781ED3 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-222Z.
Where is Mode-S 781ED3 registered?
Mode-S code 781ED3 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781ED3 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781ED3, octal 36017323, decimal 7,872,211.
What flights does 781ED3 operate?
Mode-S 781ED3 has broadcast 20 distinct callsigns, including CKK227, CKK221, CKK228, CKK225, CKK215.