Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7806EF

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6741 · AIRBUS A-321

Hex
7806EF
Octal
36003357
Decimal
7,866,095
Country
CN
Tail
B-6741
Type
A321
No current signal · last broadcast Jul 26, 12:45 UTC
Flights observed
156
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 12:45 UTC

Last known position

Most recent position reported by Mode-S 7806EF.

Country allocation

The ICAO 24-bit address 7806EF 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
CCA149 - 12 2026-06-29
CCA727 Air China 9 2026-07-26
CCA115 - 6 2026-06-25
CCA728 Air China 5 2026-07-26
CCA150 - 5 2026-06-28
CCA145 - 5 2026-06-29
CCA740 - 4 2026-06-24
CCA421 Air China 4 2026-07-24
CCA146 - 4 2026-06-29
CCA126 Air China 4 2026-05-01
CCA125 Air China 4 2026-05-01
CCA739 - 3 2026-06-23
CCA1885 - 3 2026-06-26
CCA1639 Air China 3 2026-05-03
CCA1373 - 3 2026-07-03
CCA134 - 3 2026-06-27
CCA1286 - 3 2026-05-04
CCA1285 - 3 2026-05-04
CCA116 - 3 2026-06-25
CCA928 Air China 2 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CCA728 HKG → HGH Jul 26, 11:15 UTCJul 26, 12:45 UTC1h 30m
2026-07-26 CCA727 HGH → HKG Jul 26, 09:15 UTCJul 26, 09:25 UTC10m
2026-07-26 CCA727 HGH → HKG Jul 26, 07:45 UTCJul 26, 08:35 UTC50m
2026-07-25 CCA1416 CTU → PEK Jul 25, 08:00 UTCJul 25, 08:10 UTC10m
2026-07-25 CCA1415 PEK → CTU Jul 25, 01:55 UTCJul 25, 02:25 UTC30m
2026-07-24 CCA422 HND → PEK Jul 24, 12:35 UTCJul 24, 14:40 UTC2h 5m
2026-07-24 CCA421 PEK → HND Jul 24, 09:00 UTCJul 24, 11:20 UTC2h 20m
2026-07-24 CCA421 PEK → HND Jul 24, 08:05 UTCJul 24, 08:15 UTC10m
2026-07-24 CCA1218 - Jul 24, 02:15 UTCJul 24, 02:30 UTC15m
2026-07-23 CCA1217 - Jul 23, 13:20 UTCJul 23, 13:40 UTC20m
2026-07-23 CCA1484 - Jul 23, 11:10 UTCJul 23, 11:25 UTC15m
2026-07-23 CCA1483 - Jul 23, 05:05 UTCJul 23, 05:25 UTC20m
2026-07-23 CCA162 KIX → PEK Jul 23, 00:40 UTCJul 23, 02:05 UTC1h 25m
2026-07-22 CCA161 PEK → KIX Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-22 CCA1537 PEK → KHN Jul 22, 01:05 UTCJul 22, 01:20 UTC15m
2026-07-20 CCA1369 - Jul 20, 23:50 UTCJul 21, 06:05 UTC6h 15m
2026-07-20 CCA1328 CAN → PEK Jul 20, 17:05 UTCJul 20, 17:15 UTC10m
2026-07-19 CCA1309 - Jul 19, 10:50 UTCJul 19, 11:00 UTC10m
2026-07-19 CCA136 ICN → PEK Jul 19, 07:00 UTCJul 19, 07:30 UTC30m
2026-07-19 CCA135 PEK → HKG Jul 19, 05:20 UTCJul 19, 05:45 UTC25m
2026-07-18 CCA1728 - Jul 18, 14:45 UTCJul 18, 14:55 UTC10m
2026-07-17 CCA136 - Jul 17, 06:54 UTCJul 17, 07:20 UTC25m
2026-07-17 CCA135 - Jul 17, 04:49 UTCJul 17, 05:15 UTC25m
2026-07-16 CCA1653 - Jul 16, 13:05 UTCJul 16, 13:15 UTC10m
2026-07-16 CCA1541 - Jul 16, 05:40 UTCJul 16, 05:55 UTC15m
2026-07-15 CCA8352 - Jul 15, 08:40 UTCJul 15, 08:55 UTC15m
2026-07-15 CCA8351 - Jul 15, 04:00 UTCJul 15, 04:20 UTC20m
2026-07-13 CCA1793 - Jul 13, 07:15 UTCJul 13, 07:55 UTC40m
2026-07-10 CCA1714 - Jul 10, 05:15 UTCJul 10, 05:25 UTC10m
2026-07-09 CCA184 - Jul 9, 23:35 UTCJul 10, 01:35 UTC2h 0m
2026-07-09 CCA183 - Jul 9, 12:00 UTCJul 9, 13:55 UTC1h 55m
2026-07-09 CCA1370 - Jul 9, 08:25 UTCJul 9, 08:40 UTC15m
2026-07-08 CCA1369 - Jul 8, 23:55 UTCJul 9, 00:15 UTC20m
2026-07-08 CCA1843 - Jul 8, 06:00 UTCJul 8, 06:10 UTC10m
2026-07-07 CCA728 - Jul 7, 11:00 UTCJul 7, 12:05 UTC1h 5m
2026-07-07 CCA727 - Jul 7, 00:25 UTCJul 7, 09:05 UTC8h 40m
2026-07-06 CCA727 - Jul 6, 10:55 UTCJul 7, 09:05 UTC22h 10m
2026-07-06 CCA727 - Jul 6, 03:10 UTCJul 6, 08:45 UTC5h 35m
2026-07-05 CCA726 - Jul 5, 04:00 UTCJul 6, 03:35 UTC23h 35m
2026-07-04 CCA725 - Jul 4, 12:50 UTCJul 5, 02:40 UTC13h 50m
2026-07-03 CCA1845 - Jul 3, 14:15 UTCJul 3, 14:25 UTC10m
2026-07-03 CCA1374 - Jul 3, 10:45 UTCJul 3, 10:55 UTC10m
2026-07-03 CCA1373 - Jul 3, 05:10 UTCJul 3, 05:30 UTC20m
2026-07-02 CCA1587 - Jul 2, 23:20 UTCJul 2, 23:30 UTC10m
2026-07-01 CCA1443 - Jul 1, 10:45 UTCJul 1, 11:05 UTC20m
2026-07-01 CCA1710 - Jul 1, 03:00 UTCJul 1, 03:15 UTC15m
2026-06-30 CCA1525 - Jun 30, 14:55 UTCJun 30, 15:05 UTC10m
2026-06-30 CCA1373 - Jun 30, 06:40 UTCJun 30, 07:00 UTC20m
2026-06-29 CCA146 - Jun 29, 12:14 UTCJun 29, 13:54 UTC1h 40m
2026-06-29 CCA145 - Jun 29, 04:50 UTCJun 29, 10:24 UTC5h 35m

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-6741 page for operator, model, and routing details .

Mode-S 7806EF frequently asked

What is Mode-S code 7806EF?
7806EF is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6741.
Where is Mode-S 7806EF registered?
Mode-S code 7806EF is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7806EF broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7806EF, octal 36003357, decimal 7,866,095.
What flights does 7806EF operate?
Mode-S 7806EF has broadcast 20 distinct callsigns, including CCA149, CCA727, CCA115, CCA728, CCA150.