Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

34858E

ICAO 24-bit transponder address · allocated to Spain

Hex
34858E
Octal
15102616
Decimal
3,442,062
Country
ES
No current signal · last broadcast 8d ago
Flights observed
41
Distinct callsigns
3
Country
ES
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S 34858E.

Country allocation

The ICAO 24-bit address 34858E falls within the block assigned to Spain (ES) by ICAO Annex 10, Volume III. Every aircraft registered in Spain 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 3 distinct

Callsign Airline Flights Last seen
EXECORD - 35 2026-07-24
HSY01 - 4 2026-06-16
HA8 - 2 2026-06-18

Recent flights last 41

DateFlightRouteTakeoffLandingDuration
2026-07-24 EXECORD - Jul 24, 18:05 UTCJul 24, 19:05 UTC1h 0m
2026-07-24 EXECORD - Jul 24, 15:55 UTCJul 24, 16:10 UTC15m
2026-07-24 EXECORD - Jul 24, 13:25 UTCJul 24, 15:00 UTC1h 35m
2026-07-23 EXECORD - Jul 23, 15:45 UTCJul 23, 15:55 UTC10m
2026-07-23 EXECORD - Jul 23, 14:20 UTCJul 23, 15:05 UTC45m
2026-07-23 EXECORD - Jul 23, 09:50 UTCJul 23, 10:30 UTC40m
2026-07-22 EXECORD - Jul 22, 17:15 UTCJul 22, 18:30 UTC1h 15m
2026-07-22 EXECORD - Jul 22, 16:20 UTCJul 22, 16:45 UTC25m
2026-07-22 EXECORD - Jul 22, 14:35 UTCJul 22, 15:40 UTC1h 5m
2026-07-22 EXECORD - Jul 22, 11:35 UTCJul 22, 11:50 UTC15m
2026-07-12 EXECORD - Jul 12, 15:35 UTCJul 12, 15:50 UTC15m
2026-07-12 EXECORD - Jul 12, 07:20 UTCJul 12, 07:35 UTC15m
2026-07-12 EXECORD - Jul 12, 06:25 UTCJul 12, 06:35 UTC10m
2026-07-11 EXECORD - Jul 11, 15:35 UTCJul 11, 15:50 UTC15m
2026-07-11 EXECORD - Jul 11, 11:35 UTCJul 11, 11:45 UTC10m
2026-07-11 EXECORD - Jul 11, 07:25 UTCJul 11, 07:45 UTC20m
2026-07-11 EXECORD - Jul 11, 06:35 UTCJul 11, 06:45 UTC10m
2026-07-11 EXECORD - Jul 11, 05:25 UTCJul 11, 05:55 UTC30m
2026-07-10 EXECORD - Jul 10, 16:35 UTCJul 10, 16:50 UTC15m
2026-07-10 EXECORD - Jul 10, 10:10 UTCJul 10, 10:35 UTC25m
2026-07-10 EXECORD - Jul 10, 09:00 UTCJul 10, 09:20 UTC20m
2026-07-09 EXECORD - Jul 9, 17:30 UTCJul 9, 17:40 UTC10m
2026-07-09 EXECORD - Jul 9, 16:05 UTCJul 9, 17:20 UTC1h 15m
2026-07-09 EXECORD - Jul 9, 15:50 UTCJul 9, 16:00 UTC10m
2026-07-07 EXECORD - Jul 7, 07:40 UTCJul 7, 07:55 UTC15m
2026-07-06 EXECORD - Jul 6, 13:20 UTCJul 6, 14:40 UTC1h 20m
2026-07-04 EXECORD - Jul 4, 14:45 UTCJul 4, 15:05 UTC20m
2026-07-04 EXECORD - Jul 4, 12:45 UTCJul 4, 14:00 UTC1h 15m
2026-06-30 EXECORD - Jun 30, 17:20 UTCJun 30, 17:55 UTC35m
2026-06-30 EXECORD - Jun 30, 16:30 UTCJun 30, 17:00 UTC30m
2026-06-30 EXECORD - Jun 30, 11:20 UTCJun 30, 11:50 UTC30m
2026-06-30 EXECORD - Jun 30, 09:10 UTCJun 30, 09:45 UTC35m
2026-06-21 EXECORD - Jun 21, 17:10 UTCJun 21, 17:24 UTC15m
2026-06-21 EXECORD - Jun 21, 14:34 UTCJun 21, 16:10 UTC1h 35m
2026-06-21 EXECORD - Jun 21, 09:59 UTCJun 21, 10:44 UTC45m
2026-06-18 HA8 - Jun 18, 11:45 UTCJun 18, 12:00 UTC15m
2026-06-18 HA8 - Jun 18, 09:15 UTCJun 18, 09:35 UTC20m
2026-06-16 HSY01 - Jun 16, 15:05 UTCJun 16, 15:40 UTC35m
2026-06-16 HSY01 - Jun 16, 11:05 UTCJun 16, 12:35 UTC1h 30m
2026-06-15 HSY01 - Jun 15, 11:54 UTCJun 15, 13:00 UTC1h 5m
2026-06-15 HSY01 - Jun 15, 10:50 UTCJun 15, 11:15 UTC25m

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.

Mode-S 34858E frequently asked

What is Mode-S code 34858E?
34858E is an ICAO 24-bit transponder address. Allocated to Spain.
Where is Mode-S 34858E registered?
Mode-S code 34858E is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 34858E broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 34858E, octal 15102616, decimal 3,442,062.
What flights does 34858E operate?
Mode-S 34858E has broadcast 3 distinct callsigns, including EXECORD, HSY01, HA8.