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sensors Mode-S transponder

040156

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-AVN · BOEING 777-200LR

Hex
040156
Octal
01000526
Decimal
262,486
Country
ET
Tail
ET-AVN
Type
B77L
Broadcasting now · callsign ETH3725 · 33,000 ft
Flights observed
222
Distinct callsigns
20
Country
ET
Last broadcast
Jul 26, 21:30 UTC

Current position

040156 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 040156 falls within the block assigned to Ethiopia (ET) by ICAO Annex 10, Volume III. Every aircraft registered in Ethiopia 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
ETH3518 - 11 2026-07-03
ETH3605 - 10 2026-07-16
ETH3516 - 10 2026-07-02
ETH3750 - 7 2026-07-12
ETH3702 Ethiopian Airlines 7 2026-05-20
ETH3672 Ethiopian Airlines 7 2026-07-22
ETH3657 - 7 2026-07-13
ETH3600 - 7 2026-07-26
ETH3290 - 7 2026-06-17
ETH3751 - 6 2026-07-14
ETH3712 - 6 2026-07-05
ETH3651 Ethiopian Airlines 6 2026-06-15
ETH3511 - 6 2026-06-22
ETH3219 Ethiopian Airlines 6 2026-07-26
ETH3769 Ethiopian Airlines 5 2026-07-22
ETH3753 Ethiopian Airlines 5 2026-07-21
ETH3638 Ethiopian Airlines 5 2026-06-26
ETH3604 - 5 2026-07-15
ETH3502 - 5 2026-06-22
ETH3720 Ethiopian Airlines 4 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ETH3219 HKG → ADD Jul 26, 20:10 UTCJul 26, 21:30 UTC1h 20m
2026-07-26 ETH3219 HKG → ADD Jul 26, 18:25 UTCJul 26, 18:35 UTC10m
2026-07-26 ETH3600 - Jul 26, 14:20 UTCJul 26, 14:30 UTC10m
2026-07-26 ETH3600 - Jul 26, 10:55 UTCJul 26, 11:25 UTC30m
2026-07-25 ETH3600 - Jul 25, 13:50 UTCJul 25, 19:10 UTC5h 20m
2026-07-24 ETH3711 DUB → BRU Jul 24, 21:35 UTCJul 25, 19:10 UTC21h 35m
2026-07-24 ETH3711 DUB → BRU Jul 24, 20:35 UTCJul 25, 19:10 UTC22h 35m
2026-07-24 ETH3720 ADD → LGG Jul 24, 00:40 UTCJul 24, 17:25 UTC16h 45m
2026-07-23 ETH3663 ICN → ADD Jul 23, 06:30 UTCJul 23, 22:35 UTC16h 5m
2026-07-23 ETH3663 ICN → ADD Jul 23, 02:30 UTCJul 23, 22:35 UTC20h 5m
2026-07-22 ETH3672 OSL → ICN Jul 22, 23:25 UTCJul 22, 23:50 UTC25m
2026-07-22 ETH3672 OSL → ICN Jul 22, 14:35 UTCJul 22, 22:35 UTC8h 0m
2026-07-22 ETH3769 HKG → HKG Jul 22, 02:20 UTCJul 22, 12:35 UTC10h 15m
2026-07-21 ETH3769 HKG → HKG Jul 21, 21:15 UTCJul 21, 21:30 UTC15m
2026-07-21 ETH3753 MAD → LGG Jul 21, 17:55 UTCJul 21, 18:15 UTC20m
2026-07-21 ETH3753 MAD → LGG Jul 21, 06:20 UTCJul 21, 10:55 UTC4h 35m
2026-07-20 ETH3483 - Jul 20, 11:55 UTCJul 21, 03:05 UTC15h 10m
2026-07-19 ETH3568 LGG → WUH Jul 19, 12:40 UTCJul 20, 06:35 UTC17h 55m
2026-07-19 ETH3568 LGG → WUH Jul 19, 09:35 UTCJul 20, 06:35 UTC21h 0m
2026-07-19 ETH3219 HKG → ADD Jul 19, 07:45 UTCJul 19, 08:00 UTC15m
2026-07-19 ETH3600 - Jul 19, 05:10 UTCJul 19, 05:50 UTC40m
2026-07-18 ETH3600 - Jul 18, 09:00 UTCJul 19, 03:20 UTC18h 20m
2026-07-18 ETH3769 HKG → HKG Jul 18, 03:45 UTCJul 18, 07:00 UTC3h 15m
2026-07-17 ETH3769 HKG → HKG Jul 17, 20:25 UTCJul 18, 00:50 UTC4h 25m
2026-07-17 ETH3769 HKG → HKG Jul 17, 12:55 UTCJul 17, 13:10 UTC15m
2026-07-17 ETH3718 LGG → HKG Jul 17, 09:30 UTCJul 17, 10:05 UTC35m
2026-07-16 ETH3718 LGG → HKG Jul 16, 23:05 UTCJul 17, 01:09 UTC2h 5m
2026-07-16 ETH3605 - Jul 16, 14:20 UTCJul 16, 20:45 UTC6h 25m
2026-07-15 ETH3605 - Jul 15, 23:35 UTCJul 16, 20:45 UTC21h 10m
2026-07-15 ETH3604 - Jul 15, 22:05 UTCJul 16, 20:45 UTC22h 40m
2026-07-15 ETH3720 - Jul 15, 00:50 UTCJul 15, 19:30 UTC18h 40m
2026-07-14 ETH3751 - Jul 14, 23:15 UTCJul 14, 23:25 UTC10m
2026-07-14 ETH3656 - Jul 14, 12:15 UTCJul 14, 16:05 UTC3h 50m
2026-07-14 ETH3652 - Jul 14, 07:45 UTCJul 14, 08:50 UTC1h 5m
2026-07-13 ETH3657 - Jul 13, 02:20 UTCJul 13, 05:55 UTC3h 35m
2026-07-12 ETH3750 - Jul 12, 09:45 UTCJul 12, 11:50 UTC2h 5m
2026-07-11 ETH3605 - Jul 11, 11:35 UTCJul 12, 06:35 UTC19h 0m
2026-07-11 ETH3604 - Jul 11, 09:35 UTCJul 12, 06:35 UTC21h 0m
2026-07-11 ETH3604 - Jul 11, 08:35 UTCJul 12, 06:35 UTC22h 0m
2026-07-10 ETH3605 - Jul 10, 12:55 UTCJul 11, 05:35 UTC16h 40m
2026-07-10 ETH3605 - Jul 10, 09:35 UTCJul 11, 05:35 UTC20h 0m
2026-07-10 ETH3604 - Jul 10, 07:35 UTCJul 11, 05:35 UTC22h 0m
2026-07-09 ETH3720 - Jul 9, 09:45 UTCJul 10, 05:20 UTC19h 35m
2026-07-09 ETH3685 - Jul 9, 07:55 UTCJul 9, 08:10 UTC15m
2026-07-09 ETH3673 ICN → HKG Jul 9, 02:25 UTCJul 9, 05:30 UTC3h 5m
2026-07-08 ETH3672 - Jul 8, 23:00 UTCJul 8, 23:20 UTC20m
2026-07-08 ETH3672 - Jul 8, 14:25 UTCJul 8, 16:35 UTC2h 10m
2026-07-08 ETH3672 MST → OSL Jul 8, 10:20 UTCJul 8, 11:55 UTC1h 35m
2026-07-07 ETH3400 - Jul 7, 18:50 UTCJul 8, 08:15 UTC13h 25m
2026-07-05 ETH3848 - Jul 5, 23:05 UTCJul 6, 10:10 UTC11h 5m

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 ET-AVN page for operator, model, and routing details .

Mode-S 040156 frequently asked

What is Mode-S code 040156?
040156 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AVN.
Where is Mode-S 040156 registered?
Mode-S code 040156 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040156 broadcasting right now?
Yes. Mode-S 040156 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040156, octal 01000526, decimal 262,486.
What flights does 040156 operate?
Mode-S 040156 has broadcast 20 distinct callsigns, including ETH3518, ETH3605, ETH3516, ETH3750, ETH3702.