sensors Mode-S transponder

E49B51

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PS-GRA · BOEING 737 MAX 8

Hex
E49B51
Octal
71115521
Decimal
14,981,969
Country
BR
Tail
PS-GRA
Type
B38M
Broadcasting now · callsign GLO1544 · 35,675 ft
Flights observed
8
Distinct callsigns
8
Country
BR
Last broadcast
15h ago

Current position

E49B51 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address E49B51 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 8 distinct

Callsign Airline Flights Last seen
GLO2051 - 1 2026-04-13
GLO2050 - 1 2026-04-13
GLO1517 - 1 2026-04-13
GLO1516 Gol Linhas Aéreas Inteligentes 1 2026-04-12
GLO1495 - 1 2026-04-13
GLO1494 - 1 2026-04-13
GLO1456 - 1 2026-04-13
GLO1401 Gol Linhas Aéreas Inteligentes 1 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 GLO1401 BSB → GRU Apr 14, 10:00 UTCApr 14, 10:50 UTC50m
2026-04-13 GLO2051 - Apr 13, 21:35 UTCApr 13, 22:05 UTC30m
2026-04-13 GLO2050 - Apr 13, 16:15 UTCApr 13, 16:50 UTC35m
2026-04-13 GLO1456 - Apr 13, 12:25 UTCApr 13, 16:15 UTC3h 50m
2026-04-13 GLO1495 - Apr 13, 08:55 UTCApr 13, 09:55 UTC1h 0m
2026-04-13 GLO1494 - Apr 13, 03:15 UTCApr 13, 03:55 UTC40m
2026-04-13 GLO1517 - Apr 13, 00:20 UTCApr 13, 01:30 UTC1h 10m
2026-04-12 GLO1516 GIG → VCP Apr 12, 17:20 UTCApr 12, 19:55 UTC2h 35m

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

Mode-S E49B51 frequently asked

What is Mode-S code E49B51?
E49B51 is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PS-GRA.
Where is Mode-S E49B51 registered?
Mode-S code E49B51 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E49B51 broadcasting right now?
Yes. Mode-S E49B51 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E49B51, octal 71115521, decimal 14,981,969.
What flights does E49B51 operate?
Mode-S E49B51 has broadcast 8 distinct callsigns, including GLO2051, GLO2050, GLO1517, GLO1516, GLO1495.