Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

77058E

ICAO 24-bit transponder address · allocated to Sri Lanka

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

Hex
77058E
Octal
35602616
Decimal
7,800,206
Country
LK
Tail
4R-ALN
Type
A333
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
235
Distinct callsigns
20
Country
LK
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S 77058E.

Country allocation

The ICAO 24-bit address 77058E 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

Callsign Airline Flights Last seen
ALK604 SriLankan Airlines 52 2026-07-20
ALK605 SriLankan Airlines 28 2026-07-21
ALK455 - 20 2026-06-16
ALK454 SriLankan Airlines 14 2026-06-15
ALK606 SriLankan Airlines 13 2026-07-19
ALK558 SriLankan Airlines 10 2026-07-26
ALK89L - 9 2026-06-14
ALK557 SriLankan Airlines 9 2026-07-25
ALK308 - 9 2026-07-09
ALK607 - 8 2026-07-07
ALK501 - 7 2026-06-24
ALK504 - 5 2026-07-11
ALK26L - 5 2026-07-12
ALK266 - 5 2026-07-04
ALK90L SriLankan Airlines 4 2026-06-13
ALK142 SriLankan Airlines 4 2026-05-28
ALK101 SriLankan Airlines 4 2026-05-24
ALK563 SriLankan Airlines 3 2026-07-22
ALK503 - 3 2026-07-11
ALK470 SriLankan Airlines 3 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ALK558 FRA → CMB Jul 26, 14:30 UTCJul 26, 21:30 UTC7h 0m
2026-07-25 ALK557 CMB → FRA Jul 25, 19:05 UTCJul 26, 05:05 UTC10h 0m
2026-07-25 ALK309 SIN → CMB Jul 25, 13:05 UTCJul 25, 13:50 UTC45m
2026-07-24 ALK558 FRA → CMB Jul 24, 15:35 UTCJul 25, 11:30 UTC19h 55m
2026-07-24 ALK558 FRA → CMB Jul 24, 14:35 UTCJul 25, 11:30 UTC20h 55m
2026-07-23 ALK557 CMB → FRA Jul 23, 19:05 UTCJul 24, 05:00 UTC9h 55m
2026-07-23 ALK154 LHE → CMB Jul 23, 10:20 UTCJul 23, 13:05 UTC2h 45m
2026-07-22 ALK564 CDG → CMB Jul 22, 13:35 UTCJul 23, 05:15 UTC15h 40m
2026-07-22 ALK563 CMB → CDG Jul 22, 04:35 UTCJul 22, 05:25 UTC50m
2026-07-21 ALK563 CMB → CDG Jul 21, 21:20 UTCJul 22, 04:30 UTC7h 10m
2026-07-21 ALK605 MEL → CMB Jul 21, 06:25 UTCJul 21, 10:15 UTC3h 50m
2026-07-20 ALK604 CMB → MEL Jul 20, 09:45 UTCJul 21, 04:10 UTC18h 24m
2026-07-20 ALK604 CMB → MEL Jul 20, 07:35 UTCJul 21, 04:10 UTC20h 34m
2026-07-20 ALK605 MEL → CMB Jul 20, 06:40 UTCJul 21, 04:10 UTC21h 29m
2026-07-20 ALK604 CMB → MEL Jul 20, 03:00 UTCJul 20, 04:15 UTC1h 15m
2026-07-19 ALK604 CMB → MEL Jul 19, 06:25 UTCJul 20, 04:15 UTC21h 50m
2026-07-19 ALK606 CMB → SYD Jul 19, 02:55 UTCJul 19, 04:35 UTC1h 40m
2026-07-18 ALK606 CMB → SYD Jul 18, 06:30 UTCJul 19, 04:35 UTC22h 5m
2026-07-18 ALK606 CMB → SYD Jul 18, 03:00 UTCJul 18, 04:45 UTC1h 45m
2026-07-17 ALK606 CMB → SYD Jul 17, 06:45 UTCJul 18, 04:45 UTC22h 1m
2026-07-17 ALK606 CMB → SYD Jul 17, 02:54 UTCJul 17, 04:49 UTC1h 55m
2026-07-16 ALK605 MEL → SYD Jul 16, 06:10 UTCJul 17, 04:49 UTC22h 40m
2026-07-16 ALK604 - Jul 16, 00:55 UTCJul 16, 04:20 UTC3h 25m
2026-07-15 ALK604 - Jul 15, 07:35 UTCJul 16, 04:20 UTC20h 45m
2026-07-15 ALK604 MEL → MEL Jul 15, 06:30 UTCJul 16, 04:20 UTC21h 50m
2026-07-15 ALK604 - Jul 15, 01:05 UTCJul 15, 04:30 UTC3h 25m
2026-07-12 ALK26L - Jul 12, 19:25 UTCJul 12, 23:15 UTC3h 50m
2026-07-11 ALK504 - Jul 11, 21:35 UTCJul 12, 17:10 UTC19h 35m
2026-07-11 ALK504 - Jul 11, 21:05 UTCJul 12, 17:10 UTC20h 5m
2026-07-11 ALK503 - Jul 11, 11:20 UTCJul 11, 18:55 UTC7h 35m
2026-07-11 ALK503 - Jul 11, 08:10 UTCJul 11, 08:40 UTC30m
2026-07-10 ALK558 - Jul 10, 15:40 UTCJul 11, 00:05 UTC8h 25m
2026-07-09 ALK557 - Jul 9, 12:45 UTCJul 10, 05:00 UTC16h 15m
2026-07-09 ALK308 - Jul 9, 09:50 UTCJul 9, 11:00 UTC1h 10m
2026-07-08 ALK558 - Jul 8, 14:40 UTCJul 8, 23:20 UTC8h 40m
2026-07-08 ALK557 - Jul 8, 02:05 UTCJul 8, 05:15 UTC3h 10m
2026-07-07 ALK557 - Jul 7, 19:10 UTCJul 8, 02:00 UTC6h 50m
2026-07-07 ALK607 - Jul 7, 06:30 UTCJul 7, 08:30 UTC2h 0m
2026-07-06 ALK606 - Jul 6, 09:45 UTCJul 7, 04:40 UTC18h 55m
2026-07-06 ALK605 - Jul 6, 07:35 UTCJul 7, 04:40 UTC21h 5m
2026-07-06 ALK605 MEL → SYD Jul 6, 06:40 UTCJul 7, 04:40 UTC22h 0m
2026-07-06 ALK604 - Jul 6, 03:10 UTCJul 6, 04:20 UTC1h 10m
2026-07-05 ALK604 - Jul 5, 07:35 UTCJul 6, 04:20 UTC20h 45m
2026-07-05 ALK605 MEL → MEL Jul 5, 06:30 UTCJul 6, 04:20 UTC21h 50m
2026-07-04 ALK604 - Jul 4, 12:45 UTCJul 5, 04:20 UTC15h 35m
2026-07-04 ALK308 - Jul 4, 10:00 UTCJul 4, 10:55 UTC55m
2026-07-04 ALK266 - Jul 4, 00:30 UTCJul 4, 01:15 UTC45m
2026-07-03 ALK265 CMB → RUH Jul 3, 04:15 UTCJul 3, 21:55 UTC17h 40m
2026-07-02 ALK504 - Jul 2, 23:35 UTCJul 3, 21:55 UTC22h 20m
2026-07-02 ALK504 - Jul 2, 21:35 UTCJul 3, 21:30 UTC23h 55m

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

Mode-S 77058E frequently asked

What is Mode-S code 77058E?
77058E is an ICAO 24-bit transponder address. Allocated to Sri Lanka. Assigned to 4R-ALN.
Where is Mode-S 77058E registered?
Mode-S code 77058E 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 77058E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 77058E, octal 35602616, decimal 7,800,206.
What flights does 77058E operate?
Mode-S 77058E has broadcast 20 distinct callsigns, including ALK604, ALK605, ALK455, ALK454, ALK606.