Apparatus

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sensors Mode-S transponder

ADF08E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N998CA · BOMBARDIER Regional Jet CRJ-100 · operated by VIAJET LLC

Hex
ADF08E
Octal
53370216
Decimal
11,399,310
Country
US
Tail
N998CA
Type
CRJ1
No current signal · last broadcast 8h ago
Flights observed
138
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S ADF08E.

Country allocation

The ICAO 24-bit address ADF08E 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
SGX998 - 138 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SGX998 - Jul 13, 22:35 UTCJul 14, 02:35 UTC4h 0m
2026-06-30 SGX998 - Jun 30, 21:20 UTCJun 30, 23:15 UTC1h 55m
2026-06-30 SGX998 - Jun 30, 16:50 UTCJun 30, 20:05 UTC3h 15m
2026-06-29 SGX998 - Jun 29, 19:24 UTCJun 29, 20:04 UTC40m
2026-06-29 SGX998 - Jun 29, 02:45 UTCJun 29, 05:24 UTC2h 40m
2026-06-28 SGX998 - Jun 28, 23:25 UTCJun 29, 00:29 UTC1h 5m
2026-06-27 SGX998 - Jun 27, 21:10 UTCJun 28, 00:25 UTC3h 15m
2026-06-27 SGX998 - Jun 27, 17:49 UTCJun 27, 18:54 UTC1h 5m
2026-06-27 SGX998 - Jun 27, 15:30 UTCJun 27, 16:44 UTC1h 15m
2026-06-26 SGX998 - Jun 26, 21:30 UTCJun 27, 00:14 UTC2h 45m
2026-06-26 SGX998 YWG → ABE Jun 26, 17:40 UTCJun 26, 20:10 UTC2h 30m
2026-06-26 SGX998 - Jun 26, 13:40 UTCJun 26, 15:25 UTC1h 45m
2026-06-25 SGX998 MMU → MDW Jun 25, 15:40 UTCJun 25, 17:30 UTC1h 50m
2026-06-24 SGX998 - Jun 24, 22:49 UTCJun 24, 23:40 UTC50m
2026-06-24 SGX998 - Jun 24, 20:44 UTCJun 24, 21:29 UTC45m
2026-06-24 SGX998 - Jun 24, 19:15 UTCJun 24, 19:44 UTC30m
2026-06-24 SGX998 - Jun 24, 16:34 UTCJun 24, 17:25 UTC50m
2026-06-23 SGX998 - Jun 23, 16:39 UTCJun 23, 17:30 UTC50m
2026-06-23 SGX998 - Jun 23, 14:44 UTCJun 23, 15:15 UTC30m
2026-06-23 SGX998 LNS → BUF Jun 23, 12:25 UTCJun 23, 13:09 UTC45m
2026-06-22 SGX998 - Jun 22, 19:05 UTCJun 22, 20:04 UTC1h 0m
2026-06-22 SGX998 - Jun 22, 15:50 UTCJun 22, 16:54 UTC1h 5m
2026-06-22 SGX998 - Jun 22, 13:14 UTCJun 22, 14:24 UTC1h 10m
2026-06-21 SGX998 - Jun 21, 21:49 UTCJun 22, 00:24 UTC2h 35m
2026-06-21 SGX998 - Jun 21, 19:14 UTCJun 21, 19:45 UTC30m
2026-06-20 SGX998 - Jun 20, 18:29 UTCJun 20, 21:25 UTC2h 55m
2026-06-20 SGX998 - Jun 20, 16:39 UTCJun 20, 17:19 UTC40m
2026-06-20 SGX998 - Jun 20, 14:14 UTCJun 20, 15:04 UTC50m
2026-06-19 SGX998 - Jun 19, 18:39 UTCJun 19, 19:59 UTC1h 20m
2026-06-19 SGX998 - Jun 19, 12:44 UTCJun 19, 14:44 UTC2h 0m
2026-06-19 SGX998 - Jun 19, 10:09 UTCJun 19, 11:54 UTC1h 45m
2026-06-17 SGX998 - Jun 17, 17:55 UTCJun 17, 20:00 UTC2h 5m
2026-06-17 SGX998 HWO → SRQ Jun 17, 15:25 UTCJun 17, 16:05 UTC40m
2026-06-17 SGX998 - Jun 17, 12:20 UTCJun 17, 14:00 UTC1h 40m
2026-06-16 SGX998 - Jun 16, 21:05 UTCJun 16, 23:25 UTC2h 20m
2026-06-16 SGX998 - Jun 16, 15:24 UTCJun 16, 17:10 UTC1h 45m
2026-06-16 SGX998 - Jun 16, 12:30 UTCJun 16, 13:40 UTC1h 10m
2026-06-15 SGX998 - Jun 15, 18:29 UTCJun 15, 20:20 UTC1h 50m
2026-06-15 SGX998 - Jun 15, 16:04 UTCJun 15, 16:15 UTC10m
2026-06-15 SGX998 - Jun 15, 13:20 UTCJun 15, 15:25 UTC2h 5m
2026-06-14 SGX998 - Jun 14, 19:40 UTCJun 14, 20:40 UTC1h 0m
2026-06-14 SGX998 - Jun 14, 16:10 UTCJun 14, 18:45 UTC2h 35m
2026-06-13 SGX998 - Jun 13, 20:15 UTCJun 13, 22:30 UTC2h 15m
2026-06-13 SGX998 - Jun 13, 16:10 UTCJun 13, 19:15 UTC3h 5m
2026-06-12 SGX998 - Jun 12, 21:00 UTCJun 12, 22:15 UTC1h 15m
2026-06-12 SGX998 - Jun 12, 16:35 UTCJun 12, 19:20 UTC2h 45m
2026-06-11 SGX998 - Jun 11, 19:10 UTCJun 11, 20:05 UTC55m
2026-06-11 SGX998 - Jun 11, 12:40 UTCJun 11, 14:25 UTC1h 45m
2026-06-10 SGX998 BLM → TEB Jun 10, 22:35 UTCJun 10, 23:00 UTC25m
2026-06-10 SGX998 - Jun 10, 04:00 UTCJun 10, 05:45 UTC1h 45m

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 N998CA page for operator, model, and routing details .

Mode-S ADF08E frequently asked

What is Mode-S code ADF08E?
ADF08E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N998CA.
Where is Mode-S ADF08E registered?
Mode-S code ADF08E 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 ADF08E broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADF08E, octal 53370216, decimal 11,399,310.
What flights does ADF08E operate?
Mode-S ADF08E has broadcast 1 distinct callsign, including SGX998.