sensors Mode-S transponder

77058D

ICAO 24-bit transponder address · allocated to Sri Lanka

Currently assigned to 4R-ALM · AIRBUS A-330-300

Hex
77058D
Octal
35602615
Decimal
7,800,205
Country
LK
Tail
4R-ALM
Type
A333
No current signal · last broadcast 10h ago
Flights observed
124
Distinct callsigns
20
Country
LK
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 77058D.

Country allocation

The ICAO 24-bit address 77058D falls within the block assigned to Sri Lanka (LK) by ICAO Annex 10, Volume III. Every aircraft registered in Sri Lanka 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ALK309 SIN → CMB May 29, 12:35 UTCMay 29, 13:15 UTC40m
2026-05-29 ALK308 CMB → SIN May 29, 02:25 UTCMay 29, 10:45 UTC8h 20m
2026-05-28 ALK605 MEL → CMB May 28, 09:20 UTCMay 29, 05:20 UTC20h 0m
2026-05-28 ALK605 MEL → CMB May 28, 08:30 UTCMay 29, 05:20 UTC20h 50m
2026-05-28 ALK604 CMB → MEL May 28, 03:15 UTCMay 28, 06:20 UTC3h 5m
2026-05-27 ALK604 CMB → MEL May 27, 07:20 UTCMay 28, 06:20 UTC23h 0m
2026-05-27 ALK605 MEL → CMB May 27, 06:49 UTCMay 28, 05:15 UTC22h 25m
2026-05-27 ALK604 CMB → MEL May 27, 01:24 UTCMay 27, 04:39 UTC3h 15m
2026-05-26 ALK604 CMB → MEL May 26, 08:19 UTCMay 27, 04:39 UTC20h 20m
2026-05-26 ALK455 NRT → CMB May 26, 05:25 UTCMay 27, 04:39 UTC23h 15m
2026-05-26 ALK455 NRT → CMB May 26, 03:00 UTCMay 26, 08:59 UTC6h 0m
2026-05-25 ALK454 CMB → NRT May 25, 05:10 UTCMay 25, 23:14 UTC18h 5m
2026-05-25 ALK454 CMB → NRT May 25, 02:30 UTCMay 25, 23:14 UTC20h 45m
2026-05-24 ALK600 CMB → MEL May 24, 11:20 UTCMay 25, 08:50 UTC21h 30m
2026-05-24 ALK600 CMB → MEL May 24, 09:55 UTCMay 25, 08:50 UTC22h 55m
2026-05-24 ALK600 CMB → MEL May 24, 06:55 UTCMay 24, 08:15 UTC1h 20m
2026-05-23 ALK604 CMB → MEL May 23, 12:40 UTCMay 24, 05:05 UTC16h 26m
2026-05-23 ALK308 CMB → SIN May 23, 09:50 UTCMay 23, 10:55 UTC1h 5m
2026-05-22 ALK26L DXB → CMB May 22, 05:20 UTCMay 22, 23:20 UTC18h 0m
2026-05-22 ALK26L DXB → CMB May 22, 02:40 UTCMay 22, 23:20 UTC20h 40m
2026-05-21 ALK455 NRT → CMB May 21, 08:35 UTCMay 22, 05:25 UTC20h 50m
2026-05-21 ALK455 NRT → CMB May 21, 06:10 UTCMay 22, 02:45 UTC20h 35m
2026-05-21 ALK455 NRT → CMB May 21, 03:20 UTCMay 22, 02:45 UTC23h 25m
2026-05-21 ALK455 NRT → CMB May 21, 03:10 UTCMay 21, 09:15 UTC6h 5m
2026-05-20 ALK454 CMB → NRT May 20, 08:45 UTCMay 20, 22:55 UTC14h 10m
2026-05-20 ALK89L CMB → TRZ May 20, 06:45 UTCMay 20, 07:15 UTC30m
2026-05-19 ALK89L CMB → TRZ May 19, 07:20 UTCMay 20, 07:15 UTC23h 56m
2026-05-19 ALK90L DAC → CMB May 19, 07:05 UTCMay 19, 07:25 UTC20m
2026-05-18 ALK89L CMB → TRZ May 18, 21:45 UTCMay 19, 05:30 UTC7h 45m
2026-05-18 ALK471 ICN → CMB May 18, 03:10 UTCMay 18, 15:40 UTC12h 30m
2026-05-17 ALK455 NRT → CMB May 17, 03:20 UTCMay 17, 22:20 UTC19h 0m
2026-05-17 ALK455 NRT → CMB May 17, 03:05 UTCMay 17, 22:20 UTC19h 15m
2026-05-16 ALK454 CMB → NRT May 16, 08:55 UTCMay 16, 23:10 UTC14h 15m
2026-05-15 ALK607 SYD → CMB May 15, 06:50 UTCMay 15, 07:25 UTC35m
2026-05-15 ALK606 CMB → SYD May 15, 03:20 UTCMay 15, 04:55 UTC1h 35m
2026-05-14 ALK606 CMB → SYD May 14, 07:20 UTCMay 15, 04:55 UTC21h 35m
2026-05-14 ALK605 MEL → CMB May 14, 06:30 UTCMay 15, 04:55 UTC22h 25m
2026-05-13 ALK604 CMB → MEL May 13, 12:35 UTCMay 14, 04:30 UTC15h 55m
2026-05-13 ALK604 CMB → MEL May 13, 07:20 UTCMay 14, 04:30 UTC21h 10m
2026-05-13 ALK605 MEL → CMB May 13, 06:35 UTCMay 14, 04:30 UTC21h 55m
2026-05-12 ALK604 CMB → MEL May 12, 09:20 UTCMay 13, 04:35 UTC19h 15m
2026-05-12 ALK604 CMB → MEL May 12, 07:20 UTCMay 13, 04:35 UTC21h 15m
2026-05-12 ALK604 CMB → MEL May 12, 07:05 UTCMay 13, 04:35 UTC21h 30m
2026-05-12 ALK89L CMB → TRZ May 12, 03:05 UTCMay 12, 05:10 UTC2h 5m
2026-05-11 ALK89L CMB → TRZ May 11, 07:20 UTCMay 12, 05:10 UTC21h 50m
2026-05-11 ALK89L CMB → TRZ May 11, 06:40 UTCMay 12, 05:10 UTC22h 31m
2026-05-11 ALK604 CMB → MEL May 11, 02:00 UTCMay 11, 04:40 UTC2h 40m
2026-05-10 ALK604 CMB → MEL May 10, 08:25 UTCMay 11, 04:40 UTC20h 15m
2026-05-10 ALK455 NRT → CMB May 10, 05:20 UTCMay 11, 04:40 UTC23h 20m
2026-05-10 ALK455 NRT → CMB May 10, 03:20 UTCMay 11, 02:00 UTC22h 40m

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 4R-ALM page for operator, model, and routing details .

Mode-S 77058D frequently asked

What is Mode-S code 77058D?
77058D is an ICAO 24-bit transponder address. Allocated to Sri Lanka. Assigned to 4R-ALM.
Where is Mode-S 77058D registered?
Mode-S code 77058D is allocated to Sri Lanka (LK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 77058D broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 77058D, octal 35602615, decimal 7,800,205.
What flights does 77058D operate?
Mode-S 77058D has broadcast 20 distinct callsigns, including ALK604, ALK455, ALK454, ALK605, ALK89L.