Apparatus

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sensors Mode-S transponder

7813B7

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1105 · BOEING 737-800

Hex
7813B7
Octal
36011667
Decimal
7,869,367
Country
CN
Tail
B-1105
Type
B738
No current signal · last broadcast Jul 25, 14:35 UTC
Flights observed
161
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 14:35 UTC

Last known position

Most recent position reported by Mode-S 7813B7.

Country allocation

The ICAO 24-bit address 7813B7 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
EPA6284 - 7 2026-07-13
EPA6238 Shenzhen Donghai Airlines 7 2026-07-24
EPA6321 Shenzhen Donghai Airlines 6 2026-07-25
EPA6224 - 6 2026-07-22
EPA6283 - 5 2026-06-29
EPA6277 - 5 2026-07-13
EPA6267 - 5 2026-07-12
EPA6237 Shenzhen Donghai Airlines 5 2026-07-24
EPA6384 - 4 2026-07-15
EPA6383 - 4 2026-07-19
EPA6316 - 4 2026-07-19
EPA6278 - 4 2026-07-20
EPA6268 - 4 2026-07-13
EPA6244 Shenzhen Donghai Airlines 4 2026-07-20
EPA6218 - 4 2026-07-10
EPA6322 - 3 2026-07-09
EPA6315 - 3 2026-07-15
EPA6303 Shenzhen Donghai Airlines 3 2026-05-29
EPA6273 - 3 2026-06-27
EPA6272 - 3 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 EPA6321 ZUH → WUX Jul 25, 14:25 UTCJul 25, 14:35 UTC10m
2026-07-24 EPA6238 NTG → SZX Jul 24, 14:45 UTCJul 24, 15:50 UTC1h 5m
2026-07-24 EPA6237 SZX → NTG Jul 24, 02:10 UTCJul 24, 02:20 UTC10m
2026-07-23 EPA6260 HAK → SZX Jul 23, 23:20 UTCJul 23, 23:35 UTC15m
2026-07-23 EPA6259 SZX → HAK Jul 23, 17:40 UTCJul 23, 17:55 UTC15m
2026-07-23 EPA6232 DAT → SZX Jul 23, 15:50 UTCJul 23, 16:00 UTC10m
2026-07-23 EPA6231 SZX → DAT Jul 23, 02:15 UTCJul 23, 02:30 UTC15m
2026-07-22 EPA6224 - Jul 22, 17:05 UTCJul 22, 17:40 UTC35m
2026-07-22 EPA6224 - Jul 22, 12:50 UTCJul 22, 13:05 UTC15m
2026-07-22 EPA6223 - Jul 22, 02:25 UTCJul 22, 02:35 UTC10m
2026-07-21 EPA6262 HAK → SZX Jul 21, 23:50 UTCJul 22, 00:05 UTC15m
2026-07-21 EPA6204 YIH → SZX Jul 21, 16:30 UTCJul 21, 16:45 UTC15m
2026-07-21 EPA6203 YIH → PKX Jul 21, 04:00 UTCJul 21, 04:15 UTC15m
2026-07-20 EPA6244 CGO → SZX Jul 20, 15:20 UTCJul 20, 15:50 UTC30m
2026-07-20 EPA6243 SZX → CGO Jul 20, 03:05 UTCJul 20, 03:15 UTC10m
2026-07-20 EPA6278 - Jul 20, 00:20 UTCJul 20, 00:50 UTC30m
2026-07-19 EPA6383 - Jul 19, 15:55 UTCJul 19, 16:10 UTC15m
2026-07-19 EPA6316 - Jul 19, 13:25 UTCJul 19, 14:40 UTC1h 15m
2026-07-18 EPA6301 NTG → CSX Jul 18, 10:25 UTCJul 18, 10:35 UTC10m
2026-07-15 EPA6315 - Jul 15, 03:40 UTCJul 15, 03:50 UTC10m
2026-07-15 EPA6384 - Jul 15, 00:55 UTCJul 15, 01:25 UTC30m
2026-07-14 EPA6383 - Jul 14, 16:00 UTCJul 14, 16:15 UTC15m
2026-07-14 EPA6316 - Jul 14, 14:05 UTCJul 14, 14:50 UTC45m
2026-07-14 EPA6315 - Jul 14, 02:15 UTCJul 14, 02:25 UTC10m
2026-07-14 EPA6384 - Jul 14, 00:35 UTCJul 14, 00:50 UTC15m
2026-07-13 EPA6277 - Jul 13, 15:20 UTCJul 13, 15:30 UTC10m
2026-07-13 EPA6284 - Jul 13, 12:05 UTCJul 13, 12:25 UTC20m
2026-07-13 EPA6268 - Jul 13, 01:40 UTCJul 13, 02:01 UTC20m
2026-07-12 EPA6267 - Jul 12, 12:30 UTCJul 12, 12:40 UTC10m
2026-07-12 EPA6254 - Jul 12, 09:45 UTCJul 12, 10:01 UTC15m
2026-07-11 EPA6204 - Jul 11, 20:40 UTCJul 11, 20:50 UTC10m
2026-07-11 EPA6204 - Jul 11, 16:55 UTCJul 11, 17:05 UTC10m
2026-07-11 EPA6203 - Jul 11, 03:01 UTCJul 11, 03:10 UTC10m
2026-07-10 EPA6218 - Jul 10, 15:45 UTCJul 10, 16:30 UTC45m
2026-07-10 EPA6321 - Jul 10, 11:35 UTCJul 10, 11:45 UTC10m
2026-07-10 EPA6217 - Jul 10, 01:00 UTCJul 10, 02:00 UTC1h 0m
2026-07-09 EPA6218 - Jul 9, 18:20 UTCJul 9, 18:40 UTC20m
2026-07-09 EPA6321 - Jul 9, 13:30 UTCJul 9, 13:45 UTC15m
2026-07-09 EPA6322 - Jul 9, 05:45 UTCJul 9, 06:25 UTC40m
2026-07-09 EPA6217 - Jul 9, 00:40 UTCJul 9, 00:50 UTC10m
2026-07-08 EPA6224 - Jul 8, 18:00 UTCJul 8, 18:25 UTC25m
2026-07-08 EPA6224 - Jul 8, 09:55 UTCJul 8, 13:25 UTC3h 30m
2026-07-08 EPA6223 - Jul 8, 06:10 UTCJul 8, 06:25 UTC15m
2026-07-08 EPA621R - Jul 8, 02:20 UTCJul 8, 02:50 UTC30m
2026-07-07 EPA6321 - Jul 7, 16:45 UTCJul 7, 16:55 UTC10m
2026-07-07 EPA6322 - Jul 7, 09:25 UTCJul 7, 09:40 UTC15m
2026-07-07 EPA6217 - Jul 7, 04:20 UTCJul 7, 04:35 UTC15m
2026-07-06 EPA6238 - Jul 6, 04:30 UTCJul 6, 19:25 UTC14h 55m
2026-07-06 EPA6237 - Jul 6, 03:20 UTCJul 6, 03:30 UTC10m
2026-07-05 EPA6270 - Jul 5, 17:00 UTCJul 5, 17:25 UTC25m

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-1105 page for operator, model, and routing details .

Mode-S 7813B7 frequently asked

What is Mode-S code 7813B7?
7813B7 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1105.
Where is Mode-S 7813B7 registered?
Mode-S code 7813B7 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7813B7 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 14:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7813B7, octal 36011667, decimal 7,869,367.
What flights does 7813B7 operate?
Mode-S 7813B7 has broadcast 20 distinct callsigns, including EPA6284, EPA6238, EPA6321, EPA6224, EPA6283.