sensors Mode-S transponder

70C0FB

ICAO 24-bit transponder address · allocated to Oman

Currently assigned to A4O-MD · BOEING 737 MAX 8

Hex
70C0FB
Octal
34140373
Decimal
7,389,435
Country
OM
Tail
A4O-MD
Type
B38M
No current signal · last broadcast 15h ago
Flights observed
4
Distinct callsigns
4
Country
OM
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 70C0FB.

Country allocation

The ICAO 24-bit address 70C0FB falls within the block assigned to Oman (OM) by ICAO Annex 10, Volume III. Every aircraft registered in Oman 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 4 distinct

Callsign Airline Flights Last seen
OMA823 - 1 2026-04-14
OMA407 - 1 2026-04-13
OMA252 Oman Air 1 2026-04-13
OMA251 - 1 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-14 OMA823 - Apr 14, 10:40 UTCApr 14, 11:05 UTC25m
2026-04-13 OMA407 - Apr 13, 21:35 UTCApr 13, 21:55 UTC20m
2026-04-13 OMA252 MAA → MCT Apr 13, 03:15 UTCApr 13, 03:40 UTC25m
2026-04-13 OMA251 - Apr 13, 00:40 UTCApr 13, 01:15 UTC35m

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 A4O-MD page for operator, model, and routing details .

Mode-S 70C0FB frequently asked

What is Mode-S code 70C0FB?
70C0FB is an ICAO 24-bit transponder address. Allocated to Oman. Assigned to A4O-MD.
Where is Mode-S 70C0FB registered?
Mode-S code 70C0FB is allocated to Oman (OM). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 70C0FB broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 70C0FB, octal 34140373, decimal 7,389,435.
What flights does 70C0FB operate?
Mode-S 70C0FB has broadcast 4 distinct callsigns, including OMA823, OMA407, OMA252, OMA251.