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sensors Mode-S transponder

04021E

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-AZO · BOEING 737 MAX 8

Hex
04021E
Octal
01001036
Decimal
262,686
Country
ET
Tail
ET-AZO
Type
B38M
Broadcasting now · callsign ETH405 · 28,750 ft
Flights observed
69
Distinct callsigns
20
Country
ET
Last broadcast
3h ago

Current position

04021E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 04021E 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
ETH682 - 8 2026-07-06
ETH406 - 6 2026-07-04
ETH407 - 4 2026-07-05
ETH849 - 3 2026-06-19
ETH721 Ethiopian Airlines 3 2026-04-20
ETH683 Ethiopian Airlines 3 2026-06-22
ETH622 - 3 2026-07-12
ETH414 - 3 2026-07-14
ETH859 Ethiopian Airlines 2 2026-05-15
ETH858 Ethiopian Airlines 2 2026-06-19
ETH690 Ethiopian Airlines 2 2026-06-01
ETH688 Ethiopian Airlines 2 2026-05-08
ETH623 - 2 2026-07-13
ETH415 - 2 2026-07-09
ETH405 - 2 2026-07-03
ETH404 - 2 2026-07-08
ETH308 Ethiopian Airlines 2 2026-04-28
ETH953 Ethiopian Airlines 1 2026-05-11
ETH952 Ethiopian Airlines 1 2026-05-11
ETH949 - 1 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ETH414 - Jul 14, 19:15 UTCJul 14, 19:45 UTC30m
2026-07-13 ETH623 - Jul 13, 01:05 UTCJul 13, 01:40 UTC35m
2026-07-12 ETH622 - Jul 12, 23:05 UTCJul 12, 23:45 UTC40m
2026-07-11 - - Jul 11, 00:20 UTCJul 11, 00:30 UTC10m
2026-07-09 ETH415 - Jul 9, 05:10 UTCJul 9, 05:40 UTC30m
2026-07-08 ETH404 TLV → TLV Jul 8, 13:00 UTCJul 9, 02:55 UTC13h 55m
2026-07-08 ETH417 - Jul 8, 01:10 UTCJul 8, 11:20 UTC10h 10m
2026-07-07 ETH416 - Jul 7, 22:55 UTCJul 7, 23:50 UTC55m
2026-07-06 ETH682 - Jul 6, 08:00 UTCJul 6, 23:30 UTC15h 30m
2026-07-05 ETH407 - Jul 5, 00:05 UTCJul 5, 01:05 UTC1h 0m
2026-07-04 ETH406 - Jul 4, 21:40 UTCJul 4, 22:35 UTC55m
2026-07-03 ETH405 - Jul 3, 22:25 UTCJul 3, 22:55 UTC30m
2026-07-03 ETH414 - Jul 3, 19:55 UTCJul 3, 20:35 UTC40m
2026-07-03 ETH948 - Jul 3, 01:20 UTCJul 3, 01:35 UTC15m
2026-07-02 ETH949 - Jul 2, 23:40 UTCJul 3, 00:00 UTC20m
2026-07-02 ETH407 - Jul 2, 00:25 UTCJul 2, 01:30 UTC1h 5m
2026-07-01 ETH406 - Jul 1, 22:00 UTCJul 1, 23:05 UTC1h 5m
2026-06-28 ETH405 TLV → ADD Jun 28, 22:34 UTCJun 28, 22:59 UTC25m
2026-06-28 ETH414 ADD → TLV Jun 28, 19:20 UTCJun 28, 19:49 UTC30m
2026-06-26 ETH682 - Jun 26, 18:24 UTCJun 27, 00:25 UTC6h 0m
2026-06-26 ETH682 - Jun 26, 01:34 UTCJun 27, 00:25 UTC22h 50m
2026-06-26 ETH682 - Jun 26, 01:10 UTCJun 26, 19:09 UTC18h 0m
2026-06-25 ETH614 - Jun 25, 22:34 UTCJun 25, 23:05 UTC30m
2026-06-22 ETH683 HYD → ADD Jun 22, 22:49 UTCJun 23, 16:54 UTC18h 5m
2026-06-22 ETH683 HYD → ADD Jun 22, 18:30 UTCJun 23, 16:54 UTC22h 25m
2026-06-22 ETH683 HYD → ADD Jun 22, 07:45 UTCJun 22, 23:35 UTC15h 50m
2026-06-19 ETH858 JNB → ADD Jun 19, 21:14 UTCJun 19, 21:39 UTC25m
2026-06-19 ETH849 - Jun 19, 04:44 UTCJun 19, 18:05 UTC13h 20m
2026-06-19 ETH686 - Jun 19, 02:14 UTCJun 19, 02:54 UTC40m
2026-06-18 ETH407 BEY → ADD Jun 18, 00:30 UTCJun 18, 01:35 UTC1h 5m
2026-06-17 ETH406 ADD → BEY Jun 17, 22:20 UTCJun 17, 23:10 UTC50m
2026-06-17 ETH406 ADD → BEY Jun 17, 01:35 UTCJun 17, 23:10 UTC21h 35m
2026-06-17 ETH406 ADD → BEY Jun 17, 01:15 UTCJun 17, 23:10 UTC21h 55m
2026-06-16 ETH622 - Jun 16, 23:20 UTCJun 16, 23:55 UTC35m
2026-06-15 ETH623 SHJ → SHJ Jun 15, 00:45 UTCJun 15, 01:04 UTC20m
2026-06-10 ETH682 ADD → HYD Jun 10, 18:10 UTCJun 10, 23:05 UTC4h 55m
2026-06-09 ETH415 TLV → ADD Jun 9, 04:40 UTCJun 9, 05:05 UTC25m
2026-06-09 ETH404 ADD → TLV Jun 9, 02:10 UTCJun 9, 02:55 UTC45m
2026-06-05 ETH407 BEY → ADD Jun 5, 00:35 UTCJun 5, 01:35 UTC1h 0m
2026-06-04 ETH406 ADD → BEY Jun 4, 22:20 UTCJun 4, 23:10 UTC50m
2026-06-01 ETH622 ADD → SHJ Jun 1, 10:45 UTCJun 1, 23:20 UTC12h 35m
2026-06-01 ETH690 ADD → BLR Jun 1, 01:55 UTCJun 1, 02:20 UTC25m
2026-05-27 ETH691 BLR → ADD May 27, 10:40 UTCMay 27, 10:55 UTC15m
2026-05-27 ETH690 ADD → BLR May 27, 01:44 UTCMay 27, 02:09 UTC25m
2026-05-21 ETH917 ADD → COO May 21, 09:55 UTCMay 21, 10:05 UTC10m
2026-05-19 ETH858 JNB → ADD May 19, 21:25 UTCMay 19, 21:55 UTC30m
2026-05-19 ETH849 ADD → JNB May 19, 17:25 UTCMay 19, 18:00 UTC35m
2026-05-18 ETH849 ADD → JNB May 18, 21:35 UTCMay 19, 18:00 UTC20h 25m
2026-05-18 ETH682 ADD → HYD May 18, 17:55 UTCMay 19, 17:30 UTC23h 34m
2026-05-18 ETH682 ADD → HYD May 18, 08:15 UTCMay 18, 22:10 UTC13h 54m

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

Mode-S 04021E frequently asked

What is Mode-S code 04021E?
04021E is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AZO.
Where is Mode-S 04021E registered?
Mode-S code 04021E is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 04021E broadcasting right now?
Yes. Mode-S 04021E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 04021E, octal 01001036, decimal 262,686.
What flights does 04021E operate?
Mode-S 04021E has broadcast 20 distinct callsigns, including ETH682, ETH406, ETH407, ETH849, ETH721.