Apparatus

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sensors Mode-S transponder

ABFE12

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N872DC · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
ABFE12
Octal
52777022
Decimal
11,271,698
Country
US
Tail
N872DC
Type
CRJ7
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
660
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S ABFE12.

Country allocation

The ICAO 24-bit address ABFE12 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
SKW6386 - 14 2026-06-22
SKW6388 - 10 2026-06-25
SKW6298 - 10 2026-07-04
SKW6363 - 9 2026-07-16
SKW6223 - 9 2026-06-17
SKW6455 - 8 2026-07-10
SKW6233 - 8 2026-07-10
SKW6450 - 7 2026-07-15
SKW6385 - 7 2026-07-07
SKW6222 - 7 2026-06-17
SKW6196 - 7 2026-07-14
SKW4828 - 7 2026-07-15
SKW6474 - 6 2026-07-12
SKW6446 SkyWest Airlines 6 2026-05-05
SKW6445 SkyWest Airlines 6 2026-06-06
SKW6436 - 6 2026-07-07
SKW6412 - 6 2026-07-14
SKW6340 SkyWest Airlines 6 2026-04-24
SKW6236 SkyWest Airlines 6 2026-06-01
SKW6235 - 6 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW6373 PHX → MFR Jul 26, 22:05 UTCJul 26, 22:30 UTC25m
2026-07-26 SKW6373 PHX → MFR Jul 26, 20:50 UTCJul 26, 21:15 UTC25m
2026-07-26 SKW258R DRO → PHX Jul 26, 18:25 UTCJul 26, 19:10 UTC45m
2026-07-26 SKW231E LAX → TUL Jul 26, 16:15 UTCJul 26, 17:30 UTC1h 15m
2026-07-26 SKW6275 FAT → PHX Jul 26, 13:30 UTCJul 26, 14:50 UTC1h 20m
2026-07-26 SKW6317 PHX → FAT Jul 26, 00:51 UTCJul 26, 01:54 UTC1h 3m
2026-07-26 SKW6317 PHX → FAT Jul 26, 00:45 UTCJul 26, 01:55 UTC1h 10m
2026-07-25 SKW4993 BHM → ORD Jul 25, 19:35 UTCJul 25, 20:50 UTC1h 15m
2026-07-25 SKW4993 BHM → ORD Jul 25, 17:15 UTCJul 25, 18:15 UTC1h 0m
2026-07-25 SKW6375 - Jul 25, 13:10 UTCJul 25, 14:30 UTC1h 20m
2026-07-25 SKW6375 MRY → PHX Jul 25, 13:13 UTCJul 25, 14:34 UTC1h 21m
2026-07-25 SKW6374 DFW → SJT Jul 25, 04:00 UTCJul 25, 05:20 UTC1h 20m
2026-07-25 SKW4985 SJC → PHX Jul 25, 01:40 UTCJul 25, 02:05 UTC25m
2026-07-25 SKW4985 SJC → PHX Jul 25, 01:42 UTCJul 25, 01:58 UTC16m
2026-07-25 SKW4985 SJC → PHX Jul 25, 00:35 UTCJul 25, 00:50 UTC15m
2026-07-24 SKW6517 PHX → SBA Jul 24, 21:10 UTCJul 24, 23:05 UTC1h 55m
2026-07-24 SKW6517 PHX → SBA Jul 24, 21:09 UTCJul 24, 23:03 UTC1h 54m
2026-07-24 SKW6273 HOU → DFW Jul 24, 18:45 UTCJul 24, 20:25 UTC1h 40m
2026-07-24 SKW6244 ORD → FSD Jul 24, 15:50 UTCJul 24, 16:45 UTC55m
2026-07-24 SKW6244 ORD → FSD Jul 24, 16:01 UTCJul 24, 16:34 UTC33m
2026-07-24 SKW6244 ORD → FSD Jul 24, 14:15 UTCJul 24, 15:00 UTC45m
2026-07-23 SKW6418 DFW → BRO Jul 23, 20:35 UTCJul 23, 21:05 UTC30m
2026-07-23 SKW6418 DFW → BRO Jul 23, 20:37 UTCJul 23, 20:50 UTC13m
2026-07-23 SKW6418 DFW → BRO Jul 23, 18:15 UTCJul 23, 18:40 UTC25m
2026-07-23 SKW4953 DFW → SWO Jul 23, 14:35 UTCJul 23, 15:30 UTC55m
2026-07-23 SKW4953 DFW → SWO Jul 23, 12:50 UTCJul 23, 13:35 UTC45m
2026-07-23 SKW6207 SFO → LAX Jul 23, 10:55 UTCJul 23, 11:40 UTC45m
2026-07-23 SKW6193 OKC → LAX Jul 23, 02:50 UTCJul 23, 03:15 UTC25m
2026-07-22 SKW4990 SBP → PHX Jul 22, 22:05 UTCJul 22, 23:20 UTC1h 15m
2026-07-22 SKW4990 SBP → PHX Jul 22, 22:04 UTCJul 22, 23:05 UTC1h 1m
2026-07-22 SKW4990 SBP → PHX Jul 22, 19:55 UTCJul 22, 21:10 UTC1h 15m
2026-07-22 SKW6204 ORD → STL Jul 22, 16:25 UTCJul 22, 18:00 UTC1h 35m
2026-07-22 SKW6204 ORD → STL Jul 22, 13:35 UTCJul 22, 15:15 UTC1h 40m
2026-07-22 SKW6464 - Jul 22, 11:10 UTCJul 22, 11:55 UTC45m
2026-07-22 SKW6433 PHX → BFL Jul 22, 01:40 UTCJul 22, 03:35 UTC1h 55m
2026-07-21 SKW6433 PHX → BFL Jul 21, 23:10 UTCJul 22, 00:35 UTC1h 25m
2026-07-20 SKW4950 PHX → SFO Jul 20, 20:40 UTCJul 20, 21:30 UTC50m
2026-07-20 SKW4950 PHX → SFO Jul 20, 20:38 UTCJul 20, 21:30 UTC52m
2026-07-20 SKW4950 PHX → SFO Jul 20, 18:55 UTCJul 20, 19:45 UTC50m
2026-07-19 SKW5014 HRL → DFW Jul 19, 18:15 UTCJul 19, 19:40 UTC1h 25m
2026-07-19 SKW5014 HRL → DFW Jul 19, 16:05 UTCJul 19, 17:10 UTC1h 5m
2026-07-19 SKW6216 GUC → DFW Jul 19, 11:30 UTCJul 19, 12:50 UTC1h 20m
2026-07-19 SKW5001 SPI → ORD Jul 19, 02:05 UTCJul 19, 03:10 UTC1h 5m
2026-07-19 SKW5001 SPI → ORD Jul 19, 02:05 UTCJul 19, 03:16 UTC1h 11m
2026-07-18 SKW5008 PSP → PHX Jul 18, 23:25 UTCJul 19, 00:20 UTC55m
2026-07-18 SKW5008 PSP → PHX Jul 18, 20:50 UTCJul 18, 21:40 UTC50m
2026-07-18 SKW5003 - Jul 18, 15:50 UTCJul 18, 17:55 UTC2h 5m
2026-07-18 SKW5003 HSV → ORD Jul 18, 15:48 UTCJul 18, 17:52 UTC2h 4m
2026-07-18 SKW5003 - Jul 18, 13:35 UTCJul 18, 14:45 UTC1h 10m
2026-07-18 SKW6338 PHX → TUL Jul 18, 10:53 UTCJul 18, 11:48 UTC55m

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 N872DC page for operator, model, and routing details .

Mode-S ABFE12 frequently asked

What is Mode-S code ABFE12?
ABFE12 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N872DC.
Where is Mode-S ABFE12 registered?
Mode-S code ABFE12 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 ABFE12 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABFE12, octal 52777022, decimal 11,271,698.
What flights does ABFE12 operate?
Mode-S ABFE12 has broadcast 20 distinct callsigns, including SKW6386, SKW6388, SKW6298, SKW6363, SKW6223.