Apparatus

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sensors Mode-S transponder

040102

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-ASH · BOEING 787-8 Dreamliner

Hex
040102
Octal
01000402
Decimal
262,402
Country
ET
Tail
ET-ASH
Type
B788
No current signal · last broadcast 13h ago
Flights observed
166
Distinct callsigns
20
Country
ET
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 040102.

Country allocation

The ICAO 24-bit address 040102 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
ETH574 - 28 2026-07-13
ETH575 - 19 2026-07-13
ETH714 Ethiopian Airlines 15 2026-05-05
ETH715 Ethiopian Airlines 11 2026-05-05
ETH552 - 10 2026-06-23
ETH553 Ethiopian Airlines 9 2026-06-23
ETH737 Ethiopian Airlines 5 2026-06-27
ETH512 Ethiopian Airlines 5 2026-06-08
ETH736 - 4 2026-06-27
ETH713 Ethiopian Airlines 4 2026-06-10
ETH712 Ethiopian Airlines 4 2026-06-09
ETH518 - 4 2026-07-01
ETH719 - 3 2026-06-30
ETH718 - 3 2026-06-29
ETH680 - 3 2026-07-08
ETH645 Ethiopian Airlines 3 2026-05-22
ETH516 - 3 2026-06-15
ETH513 Ethiopian Airlines 3 2026-06-09
ETH844 - 2 2026-07-05
ETH729 Ethiopian Airlines 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ETH575 - Jul 13, 15:25 UTCJul 14, 02:05 UTC10h 40m
2026-07-13 ETH574 - Jul 13, 03:15 UTCJul 13, 12:30 UTC9h 15m
2026-07-12 ETH574 - Jul 12, 23:15 UTCJul 13, 01:40 UTC2h 25m
2026-07-12 ETH575 - Jul 12, 00:35 UTCJul 13, 00:30 UTC23h 55m
2026-07-11 ETH575 - Jul 11, 15:30 UTCJul 12, 01:20 UTC9h 50m
2026-07-11 ETH574 - Jul 11, 03:50 UTCJul 11, 13:25 UTC9h 35m
2026-07-11 ETH574 - Jul 11, 00:20 UTCJul 11, 02:15 UTC1h 55m
2026-07-10 ETH575 - Jul 10, 00:35 UTCJul 11, 00:15 UTC23h 40m
2026-07-09 ETH575 - Jul 9, 15:45 UTCJul 10, 02:15 UTC10h 30m
2026-07-09 ETH574 - Jul 9, 03:35 UTCJul 9, 13:10 UTC9h 35m
2026-07-08 ETH574 - Jul 8, 08:50 UTCJul 9, 02:00 UTC17h 10m
2026-07-08 ETH680 - Jul 8, 00:45 UTCJul 8, 03:50 UTC3h 5m
2026-07-06 ETH575 ORD → ADD Jul 6, 15:35 UTCJul 7, 01:15 UTC9h 40m
2026-07-06 ETH574 - Jul 6, 03:40 UTCJul 6, 13:10 UTC9h 30m
2026-07-06 ETH574 - Jul 6, 00:10 UTCJul 6, 02:05 UTC1h 55m
2026-07-05 ETH844 - Jul 5, 12:30 UTCJul 5, 12:40 UTC10m
2026-07-05 ETH845 - Jul 5, 10:40 UTCJul 5, 11:10 UTC30m
2026-07-04 ETH908 - Jul 4, 08:35 UTCJul 4, 09:05 UTC30m
2026-07-03 ETH907 - Jul 3, 11:25 UTCJul 4, 06:15 UTC18h 50m
2026-07-03 ETH681 DAC → DSS Jul 3, 09:20 UTCJul 4, 06:15 UTC20h 55m
2026-07-03 ETH680 - Jul 3, 01:05 UTCJul 3, 04:10 UTC3h 5m
2026-07-01 ETH519 - Jul 1, 15:25 UTCJul 2, 01:20 UTC9h 55m
2026-07-01 ETH518 - Jul 1, 11:05 UTCJul 1, 12:45 UTC1h 40m
2026-07-01 ETH518 - Jul 1, 02:45 UTCJul 1, 05:25 UTC2h 40m
2026-06-30 ETH719 - Jun 30, 09:30 UTCJul 1, 01:15 UTC15h 45m
2026-06-29 ETH718 - Jun 29, 10:34 UTCJun 30, 05:05 UTC18h 31m
2026-06-29 ETH718 - Jun 29, 09:50 UTCJun 30, 05:05 UTC19h 16m
2026-06-29 ETH515 - Jun 29, 03:10 UTCJun 30, 02:30 UTC23h 21m
2026-06-28 ETH514 LFW → JFK Jun 28, 15:09 UTCJun 28, 23:39 UTC8h 30m
2026-06-27 ETH737 MXP → ADD Jun 27, 22:35 UTCJun 28, 22:29 UTC23h 55m
2026-06-27 ETH737 MXP → ADD Jun 27, 21:44 UTCJun 28, 16:00 UTC18h 15m
2026-06-27 ETH737 MXP → ADD Jun 27, 19:15 UTCJun 27, 19:49 UTC35m
2026-06-27 ETH736 MXP → ZRH Jun 27, 05:10 UTCJun 27, 05:49 UTC40m
2026-06-27 ETH736 - Jun 27, 01:35 UTCJun 27, 03:49 UTC2h 15m
2026-06-23 ETH553 YYZ → ADD Jun 23, 15:09 UTCJun 24, 00:20 UTC9h 10m
2026-06-23 ETH552 - Jun 23, 03:39 UTCJun 23, 12:20 UTC8h 40m
2026-06-22 ETH552 - Jun 22, 13:59 UTCJun 23, 02:09 UTC12h 10m
2026-06-20 ETH575 ORD → ADD Jun 20, 15:29 UTCJun 21, 01:19 UTC9h 50m
2026-06-20 ETH574 FCO → ORD Jun 20, 03:14 UTCJun 20, 12:34 UTC9h 20m
2026-06-19 ETH574 DAC → FCO Jun 19, 08:50 UTCJun 20, 01:24 UTC16h 35m
2026-06-19 ETH680 - Jun 19, 00:55 UTCJun 19, 04:00 UTC3h 5m
2026-06-17 ETH575 ORD → ADD Jun 17, 15:40 UTCJun 18, 01:15 UTC9h 35m
2026-06-17 ETH574 - Jun 17, 03:20 UTCJun 17, 12:40 UTC9h 20m
2026-06-16 ETH574 - Jun 16, 08:35 UTCJun 17, 02:05 UTC17h 31m
2026-06-16 ETH574 - Jun 16, 02:34 UTCJun 17, 02:05 UTC23h 31m
2026-06-16 ETH517 - Jun 16, 02:00 UTCJun 17, 00:30 UTC22h 31m
2026-06-15 ETH516 - Jun 15, 14:55 UTCJun 15, 23:50 UTC8h 55m
2026-06-14 ETH516 - Jun 14, 22:35 UTCJun 15, 22:30 UTC23h 54m
2026-06-14 ETH553 YYZ → ADD Jun 14, 20:10 UTCJun 15, 15:45 UTC19h 34m
2026-06-14 ETH553 YYZ → ADD Jun 14, 14:55 UTCJun 14, 23:44 UTC8h 49m

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

Mode-S 040102 frequently asked

What is Mode-S code 040102?
040102 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-ASH.
Where is Mode-S 040102 registered?
Mode-S code 040102 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040102 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040102, octal 01000402, decimal 262,402.
What flights does 040102 operate?
Mode-S 040102 has broadcast 20 distinct callsigns, including ETH574, ETH575, ETH714, ETH715, ETH552.