Apparatus

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sensors Mode-S transponder

E4A061

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PS-TLF · BOEING 737-400

Hex
E4A061
Octal
71120141
Decimal
14,983,265
Country
BR
Tail
PS-TLF
Type
B734
No current signal · last broadcast 2h ago
Flights observed
143
Distinct callsigns
14
Country
BR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S E4A061.

Country allocation

The ICAO 24-bit address E4A061 falls within the block assigned to Brazil (BR) by ICAO Annex 10, Volume III. Every aircraft registered in Brazil 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 14 distinct

Callsign Airline Flights Last seen
TTL5688 - 49 2026-06-27
TTL5689 - 47 2026-06-27
TTL5684 - 22 2026-06-18
TTL5685 - 9 2026-06-17
TOT5689 - 3 2026-06-23
TTL9900 - 2 2026-06-20
5689 - 2 2026-06-18
TTL9985 - 1 2026-06-20
TTL9901 Total Linhas Aereas 1 2026-05-19
TOT9001 - 1 2026-06-21
TOT5688 - 1 2026-05-05
TOT5685 - 1 2026-05-09
5688 - 1 2026-05-16
360 - 1 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-27 TTL5689 - Jun 27, 08:25 UTCJun 27, 08:55 UTC30m
2026-06-27 TTL5688 - Jun 27, 04:00 UTCJun 27, 04:49 UTC50m
2026-06-26 TTL5689 - Jun 26, 08:15 UTCJun 26, 08:54 UTC40m
2026-06-26 TTL5688 - Jun 26, 04:20 UTCJun 26, 05:19 UTC1h 0m
2026-06-25 TTL5689 - Jun 25, 09:25 UTCJun 25, 09:40 UTC15m
2026-06-25 TTL5689 - Jun 25, 07:49 UTCJun 25, 08:20 UTC30m
2026-06-25 TTL5688 - Jun 25, 04:10 UTCJun 25, 05:09 UTC1h 0m
2026-06-24 TTL5689 - Jun 24, 10:14 UTCJun 24, 10:25 UTC10m
2026-06-24 TTL5689 - Jun 24, 08:35 UTCJun 24, 09:19 UTC45m
2026-06-24 - - Jun 24, 04:15 UTCJun 24, 05:15 UTC1h 0m
2026-06-24 TTL5688 - Jun 24, 03:00 UTCJun 24, 03:15 UTC15m
2026-06-23 TTL5689 - Jun 23, 08:09 UTCJun 23, 08:59 UTC50m
2026-06-23 TTL5688 - Jun 23, 04:25 UTCJun 23, 05:00 UTC35m
2026-06-23 TTL5688 - Jun 23, 04:05 UTCJun 23, 04:14 UTC10m
2026-06-23 TOT5689 - Jun 23, 02:49 UTCJun 23, 03:00 UTC10m
2026-06-21 TOT9001 - Jun 21, 12:55 UTCJun 21, 13:50 UTC55m
2026-06-20 TTL9985 - Jun 20, 19:29 UTCJun 21, 04:14 UTC8h 45m
2026-06-20 TTL9900 - Jun 20, 09:24 UTCJun 20, 13:44 UTC4h 20m
2026-06-20 TOT5689 - Jun 20, 07:54 UTCJun 20, 08:44 UTC50m
2026-06-20 TTL5688 - Jun 20, 04:14 UTCJun 20, 05:19 UTC1h 5m
2026-06-19 TTL5689 - Jun 19, 09:59 UTCJun 19, 10:09 UTC10m
2026-06-19 TTL5689 - Jun 19, 08:20 UTCJun 19, 08:54 UTC35m
2026-06-19 TTL5688 - Jun 19, 05:09 UTCJun 19, 06:10 UTC1h 0m
2026-06-18 TTL5689 - Jun 18, 13:50 UTCJun 18, 14:01 UTC10m
2026-06-18 5689 - Jun 18, 09:00 UTCJun 18, 09:40 UTC40m
2026-06-18 TTL5684 - Jun 18, 04:05 UTCJun 18, 04:50 UTC45m
2026-06-17 TTL5685 - Jun 17, 07:40 UTCJun 17, 08:05 UTC25m
2026-06-17 TTL5688 - Jun 17, 04:00 UTCJun 17, 05:00 UTC1h 0m
2026-06-16 TTL5689 - Jun 16, 07:55 UTCJun 16, 09:40 UTC1h 45m
2026-06-16 TTL5688 - Jun 16, 04:10 UTCJun 16, 05:05 UTC55m
2026-06-15 TTL9900 - Jun 15, 23:19 UTCJun 15, 23:30 UTC10m
2026-06-13 TTL5688 - Jun 13, 02:55 UTCJun 13, 03:30 UTC35m
2026-06-12 TTL5689 - Jun 12, 10:35 UTCJun 12, 10:45 UTC10m
2026-06-12 TTL5689 - Jun 12, 08:50 UTCJun 12, 09:25 UTC35m
2026-06-12 TTL5688 - Jun 12, 04:00 UTCJun 12, 04:50 UTC50m
2026-06-11 TTL5689 - Jun 11, 09:35 UTCJun 11, 09:45 UTC10m
2026-06-11 TTL5689 - Jun 11, 08:00 UTCJun 11, 08:50 UTC50m
2026-06-11 TTL5688 - Jun 11, 04:10 UTCJun 11, 05:00 UTC50m
2026-06-11 TTL5688 - Jun 11, 02:55 UTCJun 11, 03:05 UTC10m
2026-06-10 TTL5689 - Jun 10, 11:15 UTCJun 10, 11:25 UTC10m
2026-06-10 TTL5689 - Jun 10, 09:35 UTCJun 10, 10:30 UTC55m
2026-06-10 TTL5688 - Jun 10, 04:05 UTCJun 10, 04:50 UTC45m
2026-06-10 TTL5688 - Jun 10, 02:50 UTCJun 10, 03:00 UTC10m
2026-06-09 TTL5689 - Jun 9, 10:20 UTCJun 9, 10:35 UTC15m
2026-06-09 TTL5689 - Jun 9, 08:25 UTCJun 9, 09:20 UTC55m
2026-06-09 TTL5688 - Jun 9, 04:05 UTCJun 9, 05:05 UTC1h 0m
2026-06-06 TTL5689 - Jun 6, 11:19 UTCJun 6, 11:30 UTC10m
2026-06-06 TTL5689 - Jun 6, 09:19 UTCJun 6, 09:55 UTC35m
2026-06-06 TTL5688 - Jun 6, 04:00 UTCJun 6, 05:00 UTC1h 0m
2026-06-06 TTL5688 - Jun 6, 02:35 UTCJun 6, 02:50 UTC15m

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 PS-TLF page for operator, model, and routing details .

Mode-S E4A061 frequently asked

What is Mode-S code E4A061?
E4A061 is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PS-TLF.
Where is Mode-S E4A061 registered?
Mode-S code E4A061 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4A061 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4A061, octal 71120141, decimal 14,983,265.
What flights does E4A061 operate?
Mode-S E4A061 has broadcast 14 distinct callsigns, including TTL5688, TTL5689, TTL5684, TTL5685, TOT5689.