Apparatus

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sensors Mode-S transponder

040045

ICAO 24-bit transponder address · allocated to Ethiopia

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

Hex
040045
Octal
01000105
Decimal
262,213
Country
ET
Tail
ET-AOO
Type
B788
No current signal · last broadcast Jul 25, 23:40 UTC
Flights observed
176
Distinct callsigns
20
Country
ET
Last broadcast
Jul 25, 23:40 UTC

Last known position

Most recent position reported by Mode-S 040045.

Country allocation

The ICAO 24-bit address 040045 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 Ethiopian Airlines 14 2026-07-20
ETH519 Ethiopian Airlines 12 2026-07-25
ETH518 Ethiopian Airlines 12 2026-07-24
ETH575 - 11 2026-07-20
ETH714 Ethiopian Airlines 10 2026-05-25
ETH514 Ethiopian Airlines 9 2026-07-16
ETH715 Ethiopian Airlines 8 2026-05-25
ETH736 Ethiopian Airlines 7 2026-07-18
ETH718 Ethiopian Airlines 6 2026-04-16
ETH515 - 6 2026-07-17
ETH726 Ethiopian Airlines 5 2026-06-04
ETH719 Ethiopian Airlines 5 2026-04-16
ETH907 Ethiopian Airlines 4 2026-05-27
ETH737 - 4 2026-07-18
ETH727 Ethiopian Airlines 4 2026-06-04
ETH725 - 4 2026-07-01
ETH724 - 4 2026-07-01
ETH516 - 4 2026-07-11
ETH513 - 4 2026-07-14
ETH512 - 4 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 ETH405 TLV → ADD Jul 25, 23:15 UTCJul 25, 23:40 UTC25m
2026-07-25 ETH519 ATL → ADD Jul 25, 01:20 UTCJul 25, 21:15 UTC19h 55m
2026-07-25 ETH519 ATL → ADD Jul 25, 00:45 UTCJul 25, 21:15 UTC20h 30m
2026-07-24 ETH519 ATL → ADD Jul 24, 18:10 UTCJul 25, 04:30 UTC10h 20m
2026-07-24 ETH518 ADD → DUB Jul 24, 05:55 UTCJul 24, 15:50 UTC9h 55m
2026-07-24 ETH518 ADD → DUB Jul 24, 01:40 UTCJul 24, 04:20 UTC2h 40m
2026-07-22 ETH519 ATL → ADD Jul 22, 15:20 UTCJul 23, 10:20 UTC19h 0m
2026-07-22 ETH519 ATL → ADD Jul 22, 15:00 UTCJul 23, 10:20 UTC19h 20m
2026-07-22 ETH518 ADD → DUB Jul 22, 03:00 UTCJul 22, 12:45 UTC9h 45m
2026-07-21 ETH518 ADD → DUB Jul 21, 22:35 UTCJul 22, 01:25 UTC2h 50m
2026-07-21 ETH518 ADD → DUB Jul 21, 01:20 UTCJul 22, 01:15 UTC23h 55m
2026-07-20 ETH575 - Jul 20, 23:20 UTCJul 21, 22:35 UTC23h 14m
2026-07-20 ETH575 - Jul 20, 15:40 UTCJul 21, 02:25 UTC10h 45m
2026-07-20 ETH574 DUB → ORD Jul 20, 04:00 UTCJul 20, 13:15 UTC9h 15m
2026-07-19 ETH574 DUB → ORD Jul 19, 16:00 UTCJul 20, 01:50 UTC9h 50m
2026-07-18 ETH737 - Jul 18, 21:50 UTCJul 19, 16:00 UTC18h 10m
2026-07-18 ETH737 ZRH → MXP Jul 18, 19:20 UTCJul 18, 19:50 UTC30m
2026-07-18 ETH736 MXP → ZRH Jul 18, 06:05 UTCJul 18, 06:35 UTC30m
2026-07-17 ETH736 MXP → ZRH Jul 17, 09:20 UTCJul 18, 04:25 UTC19h 6m
2026-07-17 ETH736 MXP → ZRH Jul 17, 09:10 UTCJul 18, 04:25 UTC19h 16m
2026-07-17 ETH736 MXP → ZRH Jul 17, 03:20 UTCJul 18, 03:15 UTC23h 56m
2026-07-17 ETH515 - Jul 17, 02:54 UTCJul 17, 10:10 UTC7h 15m
2026-07-16 ETH514 LFW → JFK Jul 16, 15:00 UTCJul 16, 23:44 UTC8h 45m
2026-07-15 ETH514 - Jul 15, 22:10 UTCJul 16, 15:49 UTC17h 40m
2026-07-15 ETH609 - Jul 15, 19:35 UTCJul 15, 19:50 UTC15m
2026-07-15 ETH609 - Jul 15, 17:30 UTCJul 15, 17:40 UTC10m
2026-07-15 ETH608 - Jul 15, 07:05 UTCJul 15, 07:15 UTC10m
2026-07-14 ETH608 - Jul 14, 14:35 UTCJul 15, 05:20 UTC14h 44m
2026-07-14 ETH608 - Jul 14, 09:20 UTCJul 15, 05:20 UTC19h 59m
2026-07-14 ETH513 - Jul 14, 08:45 UTCJul 15, 05:20 UTC20h 34m
2026-07-14 ETH513 - Jul 14, 02:25 UTCJul 14, 15:10 UTC12h 45m
2026-07-13 ETH512 - Jul 13, 15:20 UTCJul 13, 23:15 UTC7h 55m
2026-07-12 ETH517 - Jul 12, 02:10 UTCJul 12, 02:55 UTC45m
2026-07-11 ETH516 - Jul 11, 15:00 UTCJul 11, 23:55 UTC8h 55m
2026-07-10 ETH516 - Jul 10, 23:20 UTCJul 11, 23:15 UTC23h 55m
2026-07-10 ETH516 - Jul 10, 22:50 UTCJul 11, 15:45 UTC16h 55m
2026-07-10 ETH688 - Jul 10, 18:45 UTCJul 10, 21:25 UTC2h 40m
2026-07-09 ETH688 - Jul 9, 23:20 UTCJul 10, 21:25 UTC22h 5m
2026-07-09 ETH737 - Jul 9, 21:50 UTCJul 10, 18:50 UTC21h 0m
2026-07-09 ETH737 ZRH → MXP Jul 9, 19:30 UTCJul 9, 20:00 UTC30m
2026-07-09 ETH736 MXP → ZRH Jul 9, 05:40 UTCJul 9, 06:15 UTC35m
2026-07-08 ETH736 - Jul 8, 09:20 UTCJul 9, 04:20 UTC19h 0m
2026-07-08 ETH736 - Jul 8, 08:25 UTCJul 9, 04:20 UTC19h 55m
2026-07-08 ETH515 - Jul 8, 02:05 UTCJul 8, 14:35 UTC12h 30m
2026-07-07 ETH514 LFW → JFK Jul 7, 15:05 UTCJul 7, 23:20 UTC8h 15m
2026-07-06 ETH514 LFW → JFK Jul 6, 21:20 UTCJul 7, 16:00 UTC18h 40m
2026-07-06 ETH514 LFW → JFK Jul 6, 21:05 UTCJul 7, 16:00 UTC18h 55m
2026-07-06 ETH717 - Jul 6, 05:40 UTCJul 6, 18:15 UTC12h 35m
2026-07-05 ETH712 - Jul 5, 14:30 UTCJul 6, 03:10 UTC12h 40m
2026-07-05 ETH8507 COR → JNB Jul 5, 02:00 UTCJul 5, 12:30 UTC10h 30m

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

Mode-S 040045 frequently asked

What is Mode-S code 040045?
040045 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AOO.
Where is Mode-S 040045 registered?
Mode-S code 040045 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040045 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 23:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040045, octal 01000105, decimal 262,213.
What flights does 040045 operate?
Mode-S 040045 has broadcast 20 distinct callsigns, including ETH574, ETH519, ETH518, ETH575, ETH714.