Apparatus

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sensors Mode-S transponder

781326

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1219 · BOEING 737-800

Hex
781326
Octal
36011446
Decimal
7,869,222
Country
CN
Tail
B-1219
Type
B738
No current signal · last broadcast 28m ago
Flights observed
105
Distinct callsigns
20
Country
CN
Last broadcast
28m ago

Last known position

Most recent position reported by Mode-S 781326.

Country allocation

The ICAO 24-bit address 781326 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
CCA1659 - 7 2026-07-14
CCA1921 - 5 2026-07-17
CCA1649 Air China 5 2026-06-20
CCA8914 - 3 2026-07-10
CCA1805 Air China 3 2026-06-21
CCA1535 Air China 3 2026-05-06
CCA1278 - 3 2026-07-16
CCA1277 - 3 2026-07-15
CCA8913 - 2 2026-07-08
CCA1910 - 2 2026-07-19
CCA1909 - 2 2026-07-19
CCA1627 Air China 2 2026-05-07
CCA1361 Air China 2 2026-04-22
CCA1324 Air China 2 2026-06-03
CCA1300 - 2 2026-07-01
CCA1299 - 2 2026-07-01
CCA1284 - 2 2026-05-30
CCA1283 - 2 2026-05-30
CCA1127 - 2 2026-07-16
CCA1123 Air China 2 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 CCA1911 - Jul 19, 09:15 UTCJul 19, 09:25 UTC10m
2026-07-19 CCA1910 - Jul 19, 07:15 UTCJul 19, 07:25 UTC10m
2026-07-19 CCA1909 - Jul 19, 00:10 UTCJul 19, 00:35 UTC25m
2026-07-18 CCA9735 - Jul 18, 13:25 UTCJul 18, 13:35 UTC10m
2026-07-18 CCA1488 - Jul 18, 10:30 UTCJul 18, 10:45 UTC15m
2026-07-18 CCA1487 PEK → DZH Jul 18, 05:45 UTCJul 18, 06:00 UTC15m
2026-07-17 CCA1921 - Jul 17, 09:04 UTCJul 17, 09:15 UTC10m
2026-07-17 CCA1910 - Jul 17, 06:54 UTCJul 17, 07:05 UTC10m
2026-07-16 CCA1909 - Jul 16, 23:55 UTCJul 17, 00:14 UTC20m
2026-07-16 CCA9681 - Jul 16, 10:20 UTCJul 16, 10:29 UTC10m
2026-07-16 CCA1127 - Jul 16, 04:20 UTCJul 16, 04:35 UTC15m
2026-07-16 CCA1278 - Jul 16, 01:50 UTCJul 16, 02:10 UTC20m
2026-07-15 CCA1277 - Jul 15, 15:30 UTCJul 15, 15:55 UTC25m
2026-07-15 CCA9528 - Jul 15, 12:35 UTCJul 15, 12:45 UTC10m
2026-07-15 CCA9527 - Jul 15, 05:50 UTCJul 15, 06:00 UTC10m
2026-07-14 CCA1659 - Jul 14, 23:30 UTCJul 14, 23:40 UTC10m
2026-07-14 CCA1921 - Jul 14, 09:15 UTCJul 14, 09:40 UTC25m
2026-07-10 CCA8914 - Jul 10, 12:35 UTCJul 10, 15:40 UTC3h 5m
2026-07-08 CCA8913 - Jul 8, 14:10 UTCJul 8, 17:30 UTC3h 20m
2026-07-07 CCA8914 - Jul 7, 08:30 UTCJul 7, 17:15 UTC8h 45m
2026-07-04 CCA8914 - Jul 4, 12:55 UTCJul 4, 16:10 UTC3h 15m
2026-07-03 CCA8913 - Jul 3, 12:25 UTCJul 3, 15:50 UTC3h 25m
2026-07-01 CCA1266 - Jul 1, 16:20 UTCJul 1, 16:35 UTC15m
2026-07-01 CCA1265 - Jul 1, 10:10 UTCJul 1, 10:30 UTC20m
2026-07-01 CCA1300 - Jul 1, 08:05 UTCJul 1, 08:30 UTC25m
2026-07-01 CCA1299 - Jul 1, 05:10 UTCJul 1, 05:30 UTC20m
2026-06-30 CCA1133 - Jun 30, 23:10 UTCJun 30, 23:25 UTC15m
2026-06-30 CCA1300 - Jun 30, 11:05 UTCJun 30, 11:20 UTC15m
2026-06-30 CCA1299 - Jun 30, 05:25 UTCJun 30, 05:50 UTC25m
2026-06-29 CCA1659 - Jun 29, 23:14 UTCJun 29, 23:25 UTC10m
2026-06-29 CCA1464 - Jun 29, 15:19 UTCJun 29, 15:39 UTC20m
2026-06-29 CCA1463 PEK → KWE Jun 29, 08:29 UTCJun 29, 08:50 UTC20m
2026-06-29 CCA1491 - Jun 29, 00:34 UTCJun 29, 00:54 UTC20m
2026-06-28 CCA1882 - Jun 28, 17:34 UTCJun 28, 17:55 UTC20m
2026-06-27 CCA1659 - Jun 27, 23:19 UTCJun 27, 23:29 UTC10m
2026-06-27 CCA1149 - Jun 27, 08:39 UTCJun 27, 09:00 UTC20m
2026-06-22 CCA1439 - Jun 22, 06:19 UTCJun 22, 06:35 UTC15m
2026-06-21 CCA1619 - Jun 21, 22:44 UTCJun 21, 22:54 UTC10m
2026-06-21 CCA1262 XNN → PEK Jun 21, 12:19 UTCJun 21, 12:35 UTC15m
2026-06-21 CCA1261 PEK → XNN Jun 21, 07:40 UTCJun 21, 08:10 UTC30m
2026-06-21 CCA1805 PEK → JGS Jun 21, 00:19 UTCJun 21, 00:29 UTC10m
2026-06-20 CCA1649 PEK → CGQ Jun 20, 05:04 UTCJun 20, 05:14 UTC10m
2026-06-19 CCA1659 - Jun 19, 23:04 UTCJun 19, 23:14 UTC10m
2026-06-13 CCA1475 PEK → KMG Jun 13, 00:00 UTCJun 13, 00:15 UTC15m
2026-06-12 CCA1292 URC → PEK Jun 12, 16:15 UTCJun 12, 16:35 UTC20m
2026-06-12 CCA1291 PEK → URC Jun 12, 08:10 UTCJun 12, 08:30 UTC20m
2026-06-11 CCA1414 KMG → PEK Jun 11, 14:25 UTCJun 11, 14:55 UTC30m
2026-06-11 CCA1413 PEK → KMG Jun 11, 07:35 UTCJun 11, 07:55 UTC20m
2026-06-11 CCA1805 PEK → JGS Jun 11, 00:30 UTCJun 11, 00:40 UTC10m
2026-06-10 CCA1921 - Jun 10, 08:50 UTCJun 10, 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-1219 page for operator, model, and routing details .

Mode-S 781326 frequently asked

What is Mode-S code 781326?
781326 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1219.
Where is Mode-S 781326 registered?
Mode-S code 781326 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781326 broadcasting right now?
No active broadcast right now. Last signal was 28m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781326, octal 36011446, decimal 7,869,222.
What flights does 781326 operate?
Mode-S 781326 has broadcast 20 distinct callsigns, including CCA1659, CCA1921, CCA1649, CCA8914, CCA1805.