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sensors Mode-S transponder

AD137B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N94118 · CESSNA 152 · operated by UNIQUE EDUCATIONAL EXPERIENCES

Hex
AD137B
Octal
53211573
Decimal
11,342,715
Country
US
Tail
N94118
Type
C152
Broadcasting now · callsign N94118 · 900 ft
Flights observed
51
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Current position

AD137B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD137B falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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 1 distinct

Callsign Airline Flights Last seen
N94118 - 51 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N94118 - Jul 17, 20:04 UTCJul 17, 21:39 UTC1h 35m
2026-07-17 N94118 - Jul 17, 18:19 UTCJul 17, 18:55 UTC35m
2026-07-16 N94118 - Jul 16, 19:14 UTCJul 16, 19:55 UTC40m
2026-07-15 N94118 LGB → LGB Jul 15, 21:55 UTCJul 15, 22:50 UTC55m
2026-07-13 N94118 - Jul 13, 22:20 UTCJul 13, 23:15 UTC55m
2026-07-11 N94118 - Jul 11, 18:00 UTCJul 11, 18:25 UTC25m
2026-07-10 N94118 - Jul 10, 18:00 UTCJul 10, 18:25 UTC25m
2026-07-09 N94118 LGB → LGB Jul 9, 22:00 UTCJul 9, 22:50 UTC50m
2026-07-08 N94118 - Jul 8, 19:55 UTCJul 8, 20:50 UTC55m
2026-07-08 N94118 - Jul 8, 16:55 UTCJul 8, 17:50 UTC55m
2026-07-07 N94118 LGB → LGB Jul 7, 19:55 UTCJul 7, 20:55 UTC1h 0m
2026-07-05 N94118 - Jul 5, 03:25 UTCJul 5, 04:55 UTC1h 30m
2026-07-02 N94118 - Jul 2, 21:00 UTCJul 2, 21:35 UTC35m
2026-07-01 N94118 - Jul 1, 19:35 UTCJul 1, 20:15 UTC40m
2026-06-30 N94118 - Jun 30, 22:20 UTCJun 30, 23:15 UTC55m
2026-06-30 N94118 - Jun 30, 02:35 UTCJun 30, 03:25 UTC50m
2026-06-29 N94118 - Jun 29, 20:19 UTCJun 29, 21:09 UTC50m
2026-06-29 N94118 - Jun 29, 02:30 UTCJun 29, 03:49 UTC1h 20m
2026-06-27 N94118 - Jun 27, 19:49 UTCJun 27, 20:34 UTC45m
2026-06-26 N94118 - Jun 26, 00:45 UTCJun 26, 01:29 UTC45m
2026-06-24 N94118 - Jun 24, 19:59 UTCJun 24, 20:49 UTC50m
2026-06-23 N94118 LGB → LGB Jun 23, 22:05 UTCJun 23, 23:00 UTC55m
2026-06-23 N94118 - Jun 23, 00:19 UTCJun 23, 01:15 UTC55m
2026-06-18 N94118 LGB → LGB Jun 18, 22:20 UTCJun 18, 23:10 UTC50m
2026-06-16 N94118 - Jun 16, 19:50 UTCJun 16, 20:45 UTC55m
2026-06-11 N94118 - Jun 11, 22:35 UTCJun 11, 23:15 UTC40m
2026-06-10 N94118 - Jun 10, 19:45 UTCJun 10, 20:35 UTC50m
2026-06-10 N94118 - Jun 10, 01:30 UTCJun 10, 02:30 UTC1h 0m
2026-06-09 N94118 - Jun 9, 22:00 UTCJun 9, 22:50 UTC50m
2026-06-09 N94118 - Jun 9, 20:40 UTCJun 9, 20:50 UTC10m
2026-06-04 N94118 - Jun 4, 22:10 UTCJun 4, 23:00 UTC50m
2026-06-04 N94118 - Jun 4, 20:15 UTCJun 4, 20:55 UTC40m
2026-05-30 N94118 - May 30, 20:55 UTCMay 30, 21:35 UTC40m
2026-05-29 N94118 LGB → LGB May 29, 23:35 UTCMay 30, 00:20 UTC45m
2026-05-28 N94118 - May 28, 19:40 UTCMay 28, 20:35 UTC55m
2026-05-28 N94118 - May 28, 01:10 UTCMay 28, 02:55 UTC1h 45m
2026-05-27 N94118 - May 27, 19:40 UTCMay 27, 20:35 UTC55m
2026-05-26 N94118 - May 26, 19:55 UTCMay 26, 20:50 UTC55m
2026-05-26 N94118 - May 26, 00:04 UTCMay 26, 00:29 UTC25m
2026-05-25 N94118 - May 25, 22:10 UTCMay 25, 23:04 UTC55m
2026-05-25 N94118 - May 25, 17:55 UTCMay 25, 18:45 UTC50m
2026-05-21 N94118 - May 21, 19:45 UTCMay 21, 20:30 UTC45m
2026-05-21 N94118 - May 21, 00:15 UTCMay 21, 01:05 UTC50m
2026-05-20 N94118 - May 20, 22:05 UTCMay 20, 23:00 UTC55m
2026-05-20 N94118 - May 20, 20:00 UTCMay 20, 20:25 UTC25m
2026-05-19 N94118 - May 19, 22:20 UTCMay 19, 23:10 UTC50m
2026-05-17 N94118 - May 17, 02:25 UTCMay 17, 02:40 UTC15m
2026-05-16 N94118 - May 16, 22:05 UTCMay 16, 22:50 UTC45m
2026-05-15 N94118 - May 15, 19:45 UTCMay 15, 20:30 UTC45m
2026-05-14 N94118 - May 14, 22:10 UTCMay 14, 22:25 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 N94118 page for operator, model, and routing details .

Mode-S AD137B frequently asked

What is Mode-S code AD137B?
AD137B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N94118.
Where is Mode-S AD137B registered?
Mode-S code AD137B is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AD137B broadcasting right now?
Yes. Mode-S AD137B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD137B, octal 53211573, decimal 11,342,715.
What flights does AD137B operate?
Mode-S AD137B has broadcast 1 distinct callsign, including N94118.