Apparatus

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sensors Mode-S transponder

A18CE8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N1997A · BOEING 767-300 · operated by ANDROMEDA LEASING II LLC

Hex
A18CE8
Octal
50306350
Decimal
10,587,368
Country
US
Tail
N1997A
Type
B763
No current signal · last broadcast Jul 26, 05:30 UTC
Flights observed
203
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 05:30 UTC

Last known position

Most recent position reported by Mode-S A18CE8.

Country allocation

The ICAO 24-bit address A18CE8 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
CSB7505 - 14 2026-07-08
CSB7508 - 13 2026-07-13
CSB7510 21 Air 12 2026-07-25
CSB7501 21 Air 12 2026-07-23
CSB7521 - 11 2026-07-15
CSB7715 - 10 2026-07-06
CSB7507 21 Air 10 2026-07-24
CSB7592 - 9 2026-07-14
CSB7555 - 8 2026-07-02
CSB7797 - 7 2026-07-03
CSB7796 - 7 2026-07-03
CSB7598 - 7 2026-07-15
CSB7515 - 7 2026-07-15
CSB7740 - 6 2026-07-08
CSB7512 - 6 2026-07-01
CSB7509 - 6 2026-06-30
CSB7511 - 5 2026-07-10
CSB7504 - 5 2026-06-29
CSB7679 - 4 2026-07-02
CSB7526 21 Air 4 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSB3015 BOG → MIA Jul 26, 02:15 UTCJul 26, 05:30 UTC3h 15m
2026-07-25 CSB7510 ORD → CVG Jul 25, 03:20 UTCJul 25, 06:25 UTC3h 5m
2026-07-24 CSB7507 BWI → MIA Jul 24, 19:20 UTCJul 24, 21:25 UTC2h 5m
2026-07-24 CSB7526 JAX → CVG Jul 24, 09:05 UTCJul 24, 10:35 UTC1h 30m
2026-07-24 CSB7525 CVG → JAX Jul 24, 05:35 UTCJul 24, 06:50 UTC1h 15m
2026-07-23 CSB7546 JAX → CVG Jul 23, 22:50 UTCJul 24, 00:15 UTC1h 25m
2026-07-23 CSB7545 CVG → JAX Jul 23, 18:50 UTCJul 23, 20:10 UTC1h 20m
2026-07-23 CSB7501 MIA → CVG Jul 23, 04:35 UTCJul 23, 06:35 UTC2h 0m
2026-07-22 CSB7507 BWI → MIA Jul 22, 19:25 UTCJul 22, 21:25 UTC2h 0m
2026-07-22 CSB7501 - Jul 22, 04:30 UTCJul 22, 05:25 UTC55m
2026-07-21 CSB7507 BWI → MIA Jul 21, 23:50 UTCJul 22, 01:50 UTC2h 0m
2026-07-21 CSB7501 - Jul 21, 04:25 UTCJul 21, 06:35 UTC2h 10m
2026-07-20 CSB7507 BWI → MIA Jul 20, 19:20 UTCJul 20, 21:20 UTC2h 0m
2026-07-20 CSB5301 MIA → CVG Jul 20, 04:40 UTCJul 20, 06:45 UTC2h 5m
2026-07-19 CSB5302 CVG → MIA Jul 19, 20:35 UTCJul 19, 22:40 UTC2h 5m
2026-07-17 CSB4401 MIA → CVG Jul 17, 16:59 UTCJul 17, 18:55 UTC1h 55m
2026-07-16 CSB7501 - Jul 16, 04:30 UTCJul 16, 05:05 UTC35m
2026-07-15 CSB7598 - Jul 15, 20:15 UTCJul 15, 22:35 UTC2h 20m
2026-07-15 CSB7598 - Jul 15, 16:55 UTCJul 15, 17:05 UTC10m
2026-07-15 CSB7598 - Jul 15, 16:00 UTCJul 15, 16:15 UTC15m
2026-07-15 CSB7521 - Jul 15, 12:40 UTCJul 15, 12:55 UTC15m
2026-07-15 CSB7521 - Jul 15, 10:50 UTCJul 15, 11:10 UTC20m
2026-07-15 CSB7515 - Jul 15, 04:40 UTCJul 15, 06:45 UTC2h 5m
2026-07-14 CSB7592 - Jul 14, 16:00 UTCJul 15, 00:45 UTC8h 44m
2026-07-14 CSB7597 - Jul 14, 02:20 UTCJul 14, 04:35 UTC2h 15m
2026-07-13 CSB7508 - Jul 13, 23:25 UTCJul 13, 23:45 UTC20m
2026-07-13 CSB7508 - Jul 13, 20:00 UTCJul 13, 21:45 UTC1h 45m
2026-07-13 CSB7756 - Jul 13, 06:35 UTCJul 13, 08:35 UTC2h 0m
2026-07-13 CSB7597 - Jul 13, 02:05 UTCJul 13, 04:10 UTC2h 5m
2026-07-12 CSB7508 - Jul 12, 19:50 UTCJul 12, 23:35 UTC3h 45m
2026-07-12 CSB7526 - Jul 12, 08:50 UTCJul 12, 10:10 UTC1h 20m
2026-07-12 CSB7525 - Jul 12, 05:01 UTCJul 12, 06:25 UTC1h 25m
2026-07-12 CSB7546 - Jul 12, 00:30 UTCJul 12, 01:55 UTC1h 25m
2026-07-11 CSB7545 - Jul 11, 19:35 UTCJul 11, 21:00 UTC1h 25m
2026-07-11 CSB7526 - Jul 11, 09:10 UTCJul 11, 10:40 UTC1h 30m
2026-07-11 CSB7525 CVG → JAX Jul 11, 05:20 UTCJul 11, 06:45 UTC1h 25m
2026-07-10 CSB7546 - Jul 10, 22:55 UTCJul 11, 00:25 UTC1h 30m
2026-07-10 CSB7545 - Jul 10, 19:05 UTCJul 10, 20:25 UTC1h 20m
2026-07-10 CSB7756 - Jul 10, 07:05 UTCJul 10, 09:15 UTC2h 10m
2026-07-10 CSB7511 - Jul 10, 02:10 UTCJul 10, 04:10 UTC2h 0m
2026-07-09 CSB7506 - Jul 9, 20:20 UTCJul 9, 22:30 UTC2h 10m
2026-07-09 CSB7598 - Jul 9, 15:45 UTCJul 9, 17:55 UTC2h 10m
2026-07-09 CSB7521 - Jul 9, 12:55 UTCJul 9, 13:10 UTC15m
2026-07-09 CSB7521 - Jul 9, 10:55 UTCJul 9, 11:15 UTC20m
2026-07-09 CSB7515 CVG → MIA Jul 9, 04:40 UTCJul 9, 06:50 UTC2h 10m
2026-07-08 CSB7592 SJU → CVG Jul 8, 20:55 UTCJul 9, 00:40 UTC3h 45m
2026-07-08 CSB7505 - Jul 8, 18:05 UTCJul 8, 18:15 UTC10m
2026-07-08 CSB7505 - Jul 8, 16:10 UTCJul 8, 16:30 UTC20m
2026-07-08 CSB7740 - Jul 8, 02:40 UTCJul 8, 11:35 UTC8h 55m
2026-07-07 CSB7508 - Jul 7, 23:40 UTCJul 8, 00:00 UTC20m

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 N1997A page for operator, model, and routing details .

Mode-S A18CE8 frequently asked

What is Mode-S code A18CE8?
A18CE8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N1997A.
Where is Mode-S A18CE8 registered?
Mode-S code A18CE8 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 A18CE8 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 05:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A18CE8, octal 50306350, decimal 10,587,368.
What flights does A18CE8 operate?
Mode-S A18CE8 has broadcast 20 distinct callsigns, including CSB7505, CSB7508, CSB7510, CSB7501, CSB7521.