sensors Mode-S transponder

A35AFF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N315SL · BOEING 737-800 · operated by CANCELLED/NOT ASSIGNED

Hex
A35AFF
Octal
50655377
Decimal
10,705,663
Country
US
Tail
N315SL
Type
B738
No current signal · last broadcast 1d ago
Flights observed
81
Distinct callsigns
20
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A35AFF.

Country allocation

The ICAO 24-bit address A35AFF 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 20 distinct

Callsign Airline Flights Last seen
ETH3644 - 11 2026-07-11
ETH3693 - 10 2026-07-17
ETH3631 - 8 2026-07-15
ETH3692 - 6 2026-06-19
ETH3645 - 6 2026-07-09
ETH3632 - 6 2026-07-16
ETH3415 - 4 2026-06-29
ETH3414 - 4 2026-06-29
ETH3917 - 3 2026-07-15
ETH3432 - 3 2026-06-26
ETH3905 - 2 2026-07-06
ETH3694 - 2 2026-07-13
ETH3610 Ethiopian Airlines 2 2026-06-22
ETH3603 - 2 2026-06-24
ETH3433 Ethiopian Airlines 2 2026-06-26
ETH3914 - 1 2026-07-04
ETH3907 - 1 2026-04-18
ETH3893 - 1 2026-06-03
ETH3859 - 1 2026-04-24
ETH3848 Ethiopian Airlines 1 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 ETH3693 - Jul 17, 07:50 UTCJul 17, 08:15 UTC25m
2026-07-16 ETH3632 - Jul 16, 16:30 UTCJul 17, 05:55 UTC13h 25m
2026-07-15 ETH3631 - Jul 15, 21:15 UTCJul 16, 14:55 UTC17h 40m
2026-07-15 ETH3917 - Jul 15, 07:50 UTCJul 16, 03:45 UTC19h 55m
2026-07-15 ETH3917 - Jul 15, 07:25 UTCJul 16, 03:45 UTC20h 20m
2026-07-15 ETH3631 - Jul 15, 04:50 UTCJul 15, 06:00 UTC1h 10m
2026-07-13 ETH3694 - Jul 13, 02:05 UTCJul 13, 06:35 UTC4h 30m
2026-07-12 ETH3693 - Jul 12, 06:55 UTCJul 12, 07:20 UTC25m
2026-07-11 ETH3644 - Jul 11, 12:55 UTCJul 12, 04:40 UTC15h 45m
2026-07-10 ETH3644 - Jul 10, 22:45 UTCJul 11, 16:50 UTC18h 5m
2026-07-10 ETH3644 - Jul 10, 16:40 UTCJul 11, 13:45 UTC21h 5m
2026-07-09 ETH3645 - Jul 9, 20:05 UTCJul 10, 17:10 UTC21h 5m
2026-07-09 ETH3644 - Jul 9, 06:15 UTCJul 9, 17:05 UTC10h 50m
2026-07-06 ETH3413 - Jul 6, 23:25 UTCJul 7, 00:15 UTC50m
2026-07-06 ETH3905 - Jul 6, 10:00 UTCJul 6, 10:20 UTC20m
2026-07-04 ETH3914 - Jul 4, 15:50 UTCJul 4, 22:25 UTC6h 35m
2026-07-03 ETH3917 - Jul 3, 17:50 UTCJul 4, 16:25 UTC22h 35m
2026-07-03 ETH3632 - Jul 3, 17:35 UTCJul 3, 18:10 UTC35m
2026-06-29 ETH3415 - Jun 29, 20:30 UTCJun 29, 20:49 UTC20m
2026-06-29 ETH3414 - Jun 29, 17:49 UTCJun 29, 18:19 UTC30m
2026-06-28 ETH3694 - Jun 28, 19:29 UTCJun 29, 00:00 UTC4h 30m
2026-06-26 ETH3433 BLR → ADD Jun 26, 22:10 UTCJun 26, 22:34 UTC25m
2026-06-26 ETH3432 - Jun 26, 20:00 UTCJun 26, 20:24 UTC25m
2026-06-25 ETH3693 - Jun 25, 19:34 UTCJun 25, 19:59 UTC25m
2026-06-24 ETH3645 - Jun 24, 22:14 UTCJun 25, 17:39 UTC19h 25m
2026-06-24 ETH3644 ADD → AMD Jun 24, 19:29 UTCJun 24, 20:09 UTC40m
2026-06-24 ETH3603 - Jun 24, 03:35 UTCJun 24, 04:00 UTC25m
2026-06-23 ETH3602 - Jun 23, 15:40 UTCJun 24, 02:09 UTC10h 30m
2026-06-22 ETH3610 ADD → BOM Jun 22, 22:05 UTCJun 23, 13:50 UTC15h 45m
2026-06-22 ETH3415 TLV → ADD Jun 22, 09:10 UTCJun 22, 20:10 UTC11h 0m
2026-06-21 ETH3414 ADD → TLV Jun 21, 20:14 UTCJun 22, 07:30 UTC11h 15m
2026-06-20 ETH3693 - Jun 20, 02:04 UTCJun 20, 02:29 UTC25m
2026-06-19 ETH3692 - Jun 19, 23:44 UTCJun 20, 00:14 UTC30m
2026-06-18 ETH3645 - Jun 18, 02:40 UTCJun 18, 03:25 UTC45m
2026-06-18 ETH3644 ADD → AMD Jun 18, 00:10 UTCJun 18, 00:55 UTC45m
2026-06-15 ETH3632 ADD → SHJ Jun 15, 18:15 UTCJun 16, 02:34 UTC8h 20m
2026-06-15 ETH3631 ADD → BOM Jun 15, 15:35 UTCJun 15, 16:40 UTC1h 5m
2026-06-14 ETH3631 ADD → BOM Jun 14, 17:40 UTCJun 15, 15:45 UTC22h 5m
2026-06-12 ETH3645 - Jun 12, 11:50 UTCJun 12, 12:40 UTC50m
2026-06-11 ETH3644 ADD → AMD Jun 11, 18:45 UTCJun 12, 09:40 UTC14h 56m
2026-06-09 ETH3645 - Jun 9, 17:40 UTCJun 9, 18:30 UTC50m
2026-06-09 ETH3644 ADD → AMD Jun 9, 14:35 UTCJun 9, 15:15 UTC40m
2026-06-08 ETH3644 ADD → AMD Jun 8, 15:55 UTCJun 9, 15:15 UTC23h 20m
2026-06-07 ETH3610 ADD → BOM Jun 7, 22:00 UTCJun 8, 14:10 UTC16h 10m
2026-06-04 ETH3612 ADD → DXB Jun 4, 05:55 UTCJun 4, 06:20 UTC25m
2026-06-03 ETH3893 - Jun 3, 16:20 UTCJun 3, 22:45 UTC6h 25m
2026-06-01 ETH3415 TLV → ADD Jun 1, 08:50 UTCJun 1, 09:15 UTC25m
2026-05-31 ETH3414 ADD → TLV May 31, 19:30 UTCJun 1, 07:05 UTC11h 35m
2026-05-30 ETH3432 - May 30, 22:25 UTCMay 31, 17:30 UTC19h 5m
2026-05-30 ETH3905 - May 30, 20:40 UTCMay 30, 21:05 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.

Prefer a tail-number view? See the N315SL page for operator, model, and routing details .

Mode-S A35AFF frequently asked

What is Mode-S code A35AFF?
A35AFF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N315SL.
Where is Mode-S A35AFF registered?
Mode-S code A35AFF 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 A35AFF broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A35AFF, octal 50655377, decimal 10,705,663.
What flights does A35AFF operate?
Mode-S A35AFF has broadcast 20 distinct callsigns, including ETH3644, ETH3693, ETH3631, ETH3692, ETH3645.