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sensors Mode-S transponder

040242

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-BAY · AIRBUS A-350-1000

Hex
040242
Octal
01001102
Decimal
262,722
Country
ET
Tail
ET-BAY
Type
A35K
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
175
Distinct callsigns
19
Country
ET
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 040242.

Country allocation

The ICAO 24-bit address 040242 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 19 distinct

Callsign Airline Flights Last seen
ETH500 Ethiopian Airlines 57 2026-07-26
ETH501 Ethiopian Airlines 39 2026-07-26
ETH700 - 13 2026-07-17
ETH701 - 11 2026-07-17
ETH604 - 7 2026-07-13
ETH846 - 6 2026-06-19
ETH318 - 6 2026-07-14
ETH847 - 5 2026-06-19
ETH707 Ethiopian Airlines 5 2026-07-06
ETH706 - 5 2026-07-05
ETH605 - 5 2026-07-13
ETH809 Ethiopian Airlines 4 2026-05-29
ETH808 Ethiopian Airlines 4 2026-05-31
ETH735 Ethiopian Airlines 2 2026-07-02
ETH734 - 2 2026-07-01
ETH710 - 1 2026-06-21
ETH601 - 1 2026-07-08
ETH600 - 1 2026-07-07
ETH453 Ethiopian Airlines 1 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ETH501 IAD → ADD Jul 26, 15:55 UTCJul 26, 22:30 UTC6h 35m
2026-07-26 ETH500 DUB → IAD Jul 26, 04:30 UTCJul 26, 13:15 UTC8h 46m
2026-07-26 ETH500 DUB → IAD Jul 26, 00:30 UTCJul 26, 02:35 UTC2h 5m
2026-07-25 ETH501 IAD → ADD Jul 25, 00:35 UTCJul 26, 00:30 UTC23h 55m
2026-07-24 ETH501 IAD → ADD Jul 24, 16:05 UTCJul 25, 00:55 UTC8h 50m
2026-07-24 ETH500 DUB → IAD Jul 24, 05:20 UTCJul 24, 13:55 UTC8h 35m
2026-07-24 ETH500 DUB → IAD Jul 24, 00:35 UTCJul 24, 03:25 UTC2h 50m
2026-07-23 ETH453 CAI → ADD Jul 23, 01:10 UTCJul 23, 01:25 UTC15m
2026-07-21 ETH501 - Jul 21, 15:20 UTCJul 22, 00:45 UTC9h 25m
2026-07-21 ETH500 DUB → IAD Jul 21, 03:55 UTCJul 21, 12:45 UTC8h 50m
2026-07-21 ETH500 DUB → IAD Jul 21, 00:00 UTCJul 21, 02:05 UTC2h 5m
2026-07-19 ETH501 - Jul 19, 15:15 UTCJul 20, 00:30 UTC9h 15m
2026-07-19 ETH500 DUB → IAD Jul 19, 03:40 UTCJul 19, 12:40 UTC9h 0m
2026-07-19 ETH500 DUB → IAD Jul 19, 00:05 UTCJul 19, 02:05 UTC2h 0m
2026-07-18 ETH500 - Jul 18, 00:45 UTCJul 19, 00:30 UTC23h 46m
2026-07-17 ETH701 - Jul 17, 20:44 UTCJul 18, 00:45 UTC4h 0m
2026-07-17 ETH700 - Jul 17, 00:55 UTCJul 17, 05:30 UTC4h 35m
2026-07-15 ETH501 - Jul 15, 15:25 UTCJul 16, 01:15 UTC9h 50m
2026-07-15 ETH500 FCO → IAD Jul 15, 03:45 UTCJul 15, 12:55 UTC9h 10m
2026-07-14 ETH500 - Jul 14, 23:50 UTCJul 15, 01:55 UTC2h 5m
2026-07-14 ETH500 - Jul 14, 23:00 UTCJul 14, 23:45 UTC45m
2026-07-14 ETH318 - Jul 14, 09:40 UTCJul 14, 09:55 UTC15m
2026-07-13 ETH605 - Jul 13, 16:55 UTCJul 13, 23:05 UTC6h 10m
2026-07-13 ETH604 - Jul 13, 07:45 UTCJul 13, 08:05 UTC20m
2026-07-13 ETH604 - Jul 13, 01:45 UTCJul 13, 03:30 UTC1h 45m
2026-07-11 ETH501 - Jul 11, 15:30 UTCJul 12, 01:30 UTC10h 0m
2026-07-11 ETH500 - Jul 11, 03:35 UTCJul 11, 12:30 UTC8h 55m
2026-07-11 ETH500 - Jul 11, 00:15 UTCJul 11, 02:05 UTC1h 50m
2026-07-10 ETH501 - Jul 10, 05:40 UTCJul 11, 00:10 UTC18h 30m
2026-07-10 ETH501 - Jul 10, 00:35 UTCJul 11, 00:10 UTC23h 35m
2026-07-09 ETH500 FCO → IAD Jul 9, 04:10 UTCJul 9, 12:55 UTC8h 45m
2026-07-09 ETH500 - Jul 9, 00:20 UTCJul 9, 02:30 UTC2h 10m
2026-07-08 ETH601 - Jul 8, 00:55 UTCJul 9, 00:30 UTC23h 35m
2026-07-07 ETH600 - Jul 7, 22:20 UTCJul 7, 22:50 UTC30m
2026-07-06 ETH707 FRA → ADD Jul 6, 22:35 UTCJul 7, 22:30 UTC23h 55m
2026-07-06 ETH707 FRA → ADD Jul 6, 20:45 UTCJul 6, 23:10 UTC2h 25m
2026-07-05 ETH706 - Jul 5, 14:45 UTCJul 6, 04:10 UTC13h 25m
2026-07-04 ETH501 IAD → ADD Jul 4, 20:30 UTCJul 5, 14:50 UTC18h 20m
2026-07-04 ETH501 IAD → ADD Jul 4, 16:35 UTCJul 5, 14:50 UTC22h 15m
2026-07-04 ETH501 IAD → ADD Jul 4, 15:25 UTCJul 5, 00:25 UTC9h 0m
2026-07-04 ETH500 - Jul 4, 03:45 UTCJul 4, 12:45 UTC9h 0m
2026-07-03 ETH500 - Jul 3, 14:00 UTCJul 4, 02:15 UTC12h 15m
2026-07-02 ETH735 CDG → ADD Jul 2, 20:05 UTCJul 3, 14:30 UTC18h 25m
2026-07-01 ETH734 WKF → CDG Jul 1, 13:45 UTCJul 2, 03:55 UTC14h 10m
2026-06-30 ETH605 - Jun 30, 16:45 UTCJul 1, 11:55 UTC19h 10m
2026-06-30 ETH604 - Jun 30, 08:35 UTCJun 30, 08:55 UTC20m
2026-06-28 ETH501 IAD → ADD Jun 28, 15:29 UTCJun 29, 00:20 UTC8h 50m
2026-06-28 ETH500 - Jun 28, 03:59 UTCJun 28, 12:44 UTC8h 45m
2026-06-28 ETH500 - Jun 28, 00:09 UTCJun 28, 01:55 UTC1h 45m
2026-06-27 ETH500 - Jun 27, 00:39 UTCJun 28, 00:30 UTC23h 50m

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

Mode-S 040242 frequently asked

What is Mode-S code 040242?
040242 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-BAY.
Where is Mode-S 040242 registered?
Mode-S code 040242 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040242 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040242, octal 01001102, decimal 262,722.
What flights does 040242 operate?
Mode-S 040242 has broadcast 19 distinct callsigns, including ETH500, ETH501, ETH700, ETH701, ETH604.