Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A0A98F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N14158 · EMBRAER ERJ-145XR · operated by UNITED AIRLINES INC

Hex
A0A98F
Octal
50124617
Decimal
10,529,167
Country
US
Tail
N14158
Type
E45X
No current signal · last broadcast 2h ago
Flights observed
326
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A0A98F.

Country allocation

The ICAO 24-bit address A0A98F 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
UCA4962 CommutAir 7 2026-05-24
UCA4319 CommutAir 7 2026-04-29
UCA4959 CommutAir 6 2026-05-24
UCA4815 CommutAir 6 2026-05-26
UCA4328 CommutAir 6 2026-05-26
UCA4313 CommutAir 6 2026-05-26
UCA4268 CommutAir 6 2026-05-18
UCA4964 CommutAir 5 2026-05-20
UCA4872 CommutAir 5 2026-05-17
UCA4843 CommutAir 5 2026-05-28
UCA4339 CommutAir 5 2026-05-04
UCA4327 CommutAir 5 2026-05-18
UCA4310 CommutAir 5 2026-05-17
UCA4244 CommutAir 5 2026-05-25
UCA4239 CommutAir 5 2026-05-17
UCA4963 CommutAir 4 2026-05-26
UCA4876 CommutAir 4 2026-05-17
UCA4866 CommutAir 4 2026-04-28
UCA4864 CommutAir 4 2026-05-17
UCA4860 CommutAir 4 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 UCA4836 IAH → BTR May 29, 22:00 UTCMay 29, 22:45 UTC45m
2026-05-29 UCA3271 DAY → HSV May 29, 20:15 UTCMay 29, 20:55 UTC40m
2026-05-29 UCA4950 IAD → ITH May 29, 02:58 UTCMay 29, 04:00 UTC1h 2m
2026-05-29 UCA4950 IAD → ITH May 29, 03:20 UTCMay 29, 04:00 UTC40m
2026-05-29 UCA4856 IAH → CRP May 29, 00:00 UTCMay 29, 00:40 UTC40m
2026-05-28 UCA4836 IAH → BTR May 28, 22:00 UTCMay 28, 22:35 UTC35m
2026-05-28 UCA4858 IAD → DAY May 28, 19:00 UTCMay 28, 20:00 UTC1h 0m
2026-05-28 UCA4858 IAD → DAY May 28, 19:08 UTCMay 28, 20:02 UTC54m
2026-05-28 UCA4843 IAD → ROC May 28, 16:55 UTCMay 28, 17:45 UTC50m
2026-05-28 UCA4332 ROA → IAD May 28, 15:15 UTCMay 28, 15:55 UTC40m
2026-05-28 UCA4368 IAD → ROA May 28, 13:40 UTCMay 28, 14:15 UTC35m
2026-05-28 UCA4833 STL → IAD May 28, 01:00 UTCMay 28, 01:40 UTC40m
2026-05-27 UCA4831 IAD → ROA May 27, 17:15 UTCMay 27, 17:45 UTC30m
2026-05-27 UCA4281 IAD → BTV May 27, 14:50 UTCMay 27, 15:20 UTC30m
2026-05-27 UCA4333 IAD → BDL May 27, 13:15 UTCMay 27, 13:30 UTC15m
2026-05-27 UCA4359 IAD → CMH May 27, 10:25 UTCMay 27, 10:50 UTC25m
2026-05-27 UCA4252 ORF → IAD May 27, 03:04 UTCMay 27, 03:29 UTC25m
2026-05-26 UCA4313 PWM → IAD May 26, 23:49 UTCMay 27, 01:05 UTC1h 15m
2026-05-26 UCA4963 IAD → GSP May 26, 21:49 UTCMay 26, 22:54 UTC1h 5m
2026-05-26 UCA4328 IAD → CMH May 26, 19:10 UTCMay 26, 19:34 UTC25m
2026-05-26 UCA4328 IAD → CMH May 26, 19:07 UTCMay 26, 19:37 UTC30m
2026-05-26 UCA4815 IAD → CHO May 26, 17:15 UTCMay 26, 17:37 UTC22m
2026-05-26 UCA4815 IAD → CHO May 26, 17:15 UTCMay 26, 17:30 UTC15m
2026-05-26 UCA4283 IAD → CMH May 26, 14:45 UTCMay 26, 15:45 UTC1h 0m
2026-05-26 UCA4818 ORF → IAD May 26, 12:30 UTCMay 26, 13:40 UTC1h 10m
2026-05-25 UCA4238 IAD → BTV May 25, 23:49 UTCMay 26, 01:05 UTC1h 15m
2026-05-25 UCA4302 DEN → XNA May 25, 21:30 UTCMay 25, 22:30 UTC1h 0m
2026-05-25 UCA4858 IAD → DAY May 25, 19:05 UTCMay 25, 19:54 UTC50m
2026-05-25 UCA4843 IAD → ROC May 25, 17:10 UTCMay 25, 17:55 UTC45m
2026-05-25 UCA4850 IAH → ELP May 25, 14:40 UTCMay 25, 15:30 UTC50m
2026-05-25 UCA4860 ROC → IAD May 25, 12:50 UTCMay 25, 13:40 UTC50m
2026-05-25 UCA4244 OKC → IAH May 25, 10:25 UTCMay 25, 10:45 UTC20m
2026-05-25 UCA4244 OKC → IAH May 25, 10:31 UTCMay 25, 10:49 UTC18m
2026-05-24 UCA4959 GSP → IAD May 24, 19:00 UTCMay 24, 20:00 UTC1h 0m
2026-05-24 UCA4962 IAD → GSP May 24, 17:00 UTCMay 24, 17:53 UTC53m
2026-05-24 UCA4962 IAD → GSP May 24, 16:50 UTCMay 24, 17:55 UTC1h 5m
2026-05-24 UCA4889 ALB → IAD May 24, 14:20 UTCMay 24, 15:25 UTC1h 5m
2026-05-21 UCA4926 IAD → ALB May 21, 22:55 UTCMay 21, 23:45 UTC50m
2026-05-21 UCA4819 LRD → IAH May 21, 20:30 UTCMay 21, 21:25 UTC55m
2026-05-21 UCA4349 IAD → BTV May 21, 17:35 UTCMay 21, 18:15 UTC40m
2026-05-21 UCA4868 PNS → IAH May 21, 03:05 UTCMay 21, 03:50 UTC45m
2026-05-20 UCA4317 IAD → ALB May 20, 17:00 UTCMay 20, 18:00 UTC1h 0m
2026-05-20 UCA4920 DAY → IAD May 20, 14:40 UTCMay 20, 15:30 UTC50m
2026-05-20 UCA4341 PWM → IAD May 20, 13:00 UTCMay 20, 13:35 UTC35m
2026-05-20 UCA4244 OKC → IAH May 20, 10:45 UTCMay 20, 11:10 UTC25m
2026-05-20 UCA4964 IAD → MDT May 20, 03:10 UTCMay 20, 03:30 UTC20m
2026-05-20 UCA4964 IAD → MDT May 20, 02:53 UTCMay 20, 03:30 UTC37m
2026-05-20 UCA4841 TYS → IAH May 20, 00:38 UTCMay 20, 01:02 UTC24m
2026-05-20 UCA4841 TYS → IAH May 20, 00:25 UTCMay 20, 01:05 UTC40m
2026-05-19 UCA4822 BHM → IAH May 19, 22:35 UTCMay 19, 23:10 UTC35m

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 N14158 page for operator, model, and routing details .

Mode-S A0A98F frequently asked

What is Mode-S code A0A98F?
A0A98F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N14158.
Where is Mode-S A0A98F registered?
Mode-S code A0A98F 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 A0A98F broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0A98F, octal 50124617, decimal 10,529,167.
What flights does A0A98F operate?
Mode-S A0A98F has broadcast 20 distinct callsigns, including UCA4962, UCA4319, UCA4959, UCA4815, UCA4328.