Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A9A4E2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N720PS · BOMBARDIER Regional Jet CRJ-700 · operated by UMB BANK NA TRUSTEE

Hex
A9A4E2
Octal
52322342
Decimal
11,117,794
Country
US
Tail
N720PS
Type
CRJ7
Broadcasting now · callsign JIA5323 · 7,675 ft
Flights observed
295
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

A9A4E2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A9A4E2 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
JIA5180 PSA Airlines 10 2026-05-25
JIA5171 PSA Airlines 7 2026-05-11
JIA5119 PSA Airlines 7 2026-05-20
JIA5457 PSA Airlines 6 2026-05-18
JIA5403 PSA Airlines 6 2026-05-25
JIA5289 PSA Airlines 6 2026-04-25
JIA5249 PSA Airlines 6 2026-05-11
JIA5527 PSA Airlines 5 2026-05-13
JIA5400 PSA Airlines 5 2026-05-08
JIA5379 PSA Airlines 5 2026-05-20
JIA5166 PSA Airlines 5 2026-05-01
JIA5631 PSA Airlines 4 2026-05-06
JIA5621 PSA Airlines 4 2026-05-20
JIA5608 PSA Airlines 4 2026-04-29
JIA5460 PSA Airlines 4 2026-05-08
JIA5388 PSA Airlines 4 2026-05-22
JIA5339 PSA Airlines 4 2026-05-22
JIA5332 PSA Airlines 4 2026-05-18
JIA5272 PSA Airlines 4 2026-05-26
JIA5262 PSA Airlines 4 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 JIA5301 CLT → LEX May 30, 09:10 UTCMay 30, 10:20 UTC1h 10m
2026-05-30 JIA5376 PIT → PHL May 30, 00:35 UTCMay 30, 02:00 UTC1h 25m
2026-05-29 JIA5667 DCA → YYZ May 29, 22:15 UTCMay 29, 23:15 UTC1h 0m
2026-05-29 JIA5667 DCA → YYZ May 29, 19:35 UTCMay 29, 20:40 UTC1h 5m
2026-05-29 JIA5607 PHL → ATL May 29, 15:35 UTCMay 29, 17:20 UTC1h 45m
2026-05-29 JIA5607 PHL → ATL May 29, 15:30 UTCMay 29, 17:19 UTC1h 49m
2026-05-29 JIA5607 PHL → ATL May 29, 12:40 UTCMay 29, 14:30 UTC1h 50m
2026-05-29 JIA5239 SDF → DCA May 29, 10:20 UTCMay 29, 11:15 UTC55m
2026-05-29 JIA5239 SDF → DCA May 29, 10:16 UTCMay 29, 11:10 UTC54m
2026-05-29 JIA5210 VPS → PHL May 29, 01:19 UTCMay 29, 02:14 UTC55m
2026-05-29 JIA5210 VPS → PHL May 29, 01:20 UTCMay 29, 02:20 UTC1h 0m
2026-05-28 JIA5599 PIT → DCA May 28, 21:40 UTCMay 28, 23:20 UTC1h 40m
2026-05-28 JIA5599 PIT → DCA May 28, 20:00 UTCMay 28, 20:45 UTC45m
2026-05-28 JIA5599 PIT → DCA May 28, 19:05 UTCMay 28, 19:55 UTC50m
2026-05-28 JIA5337 ORF → DCA May 28, 16:15 UTCMay 28, 17:30 UTC1h 15m
2026-05-28 JIA5337 ORF → DCA May 28, 14:20 UTCMay 28, 15:15 UTC55m
2026-05-28 JIA5472 MHT → CLT May 28, 11:10 UTCMay 28, 12:50 UTC1h 40m
2026-05-28 JIA5069 CHS → PHL May 28, 03:45 UTCMay 28, 05:25 UTC1h 40m
2026-05-28 JIA5069 CHS → PHL May 28, 03:42 UTCMay 28, 05:24 UTC1h 42m
2026-05-28 JIA5329 PHL → BDL May 28, 01:00 UTCMay 28, 02:30 UTC1h 30m
2026-05-27 JIA5078 PHL → DCA May 27, 22:00 UTCMay 27, 23:35 UTC1h 35m
2026-05-27 JIA5029 PHL → ROC May 27, 19:00 UTCMay 27, 20:05 UTC1h 5m
2026-05-27 JIA5029 PHL → ROC May 27, 18:57 UTCMay 27, 20:02 UTC1h 5m
2026-05-27 JIA5029 PHL → ROC May 27, 16:00 UTCMay 27, 16:55 UTC55m
2026-05-27 JIA5312 DCA → BGR May 27, 11:47 UTCMay 27, 14:14 UTC2h 27m
2026-05-27 JIA5312 DCA → BGR May 27, 11:50 UTCMay 27, 14:15 UTC2h 25m
2026-05-27 JIA5506 PHL → MYR May 27, 00:25 UTCMay 27, 02:34 UTC2h 10m
2026-05-26 JIA5062 CAK → DCA May 26, 22:13 UTCMay 26, 22:54 UTC41m
2026-05-26 JIA5062 CAK → DCA May 26, 22:15 UTCMay 26, 23:05 UTC50m
2026-05-26 JIA5114 YYZ → PHL May 26, 20:05 UTCMay 26, 21:04 UTC1h 0m
2026-05-26 JIA5023 CMH → PHL May 26, 16:20 UTCMay 26, 17:59 UTC1h 40m
2026-05-26 JIA5642 PIT → DCA May 26, 13:15 UTCMay 26, 14:40 UTC1h 25m
2026-05-26 JIA5272 GPT → CLT May 26, 00:35 UTCMay 26, 00:54 UTC20m
2026-05-26 JIA5272 GPT → CLT May 26, 00:31 UTCMay 26, 00:55 UTC24m
2026-05-25 JIA5203 DCA → TUL May 25, 22:49 UTCMay 25, 23:04 UTC15m
2026-05-25 JIA5180 CLT → HPN May 25, 19:50 UTCMay 25, 21:15 UTC1h 25m
2026-05-25 JIA5180 CLT → HPN May 25, 20:00 UTCMay 25, 21:17 UTC1h 17m
2026-05-25 JIA5180 CLT → HPN May 25, 15:30 UTCMay 25, 16:55 UTC1h 25m
2026-05-25 JIA5403 HPN → CLT May 25, 12:00 UTCMay 25, 13:30 UTC1h 30m
2026-05-25 JIA5403 HPN → CLT May 25, 11:57 UTCMay 25, 13:26 UTC1h 29m
2026-05-24 JIA5075 MKE → PHL May 24, 20:55 UTCMay 24, 21:50 UTC55m
2026-05-24 JIA5075 MKE → PHL May 24, 19:00 UTCMay 24, 19:55 UTC55m
2026-05-24 JIA5395 MYR → PHL May 24, 16:05 UTCMay 24, 17:05 UTC1h 0m
2026-05-24 JIA5395 MYR → PHL May 24, 14:15 UTCMay 24, 15:15 UTC1h 0m
2026-05-23 JIA5158 PHL → BHM May 23, 23:00 UTCMay 24, 00:00 UTC1h 0m
2026-05-23 JIA5082 TLH → DCA May 23, 20:55 UTCMay 23, 21:55 UTC1h 0m
2026-05-23 JIA5023 CMH → PHL May 23, 17:00 UTCMay 23, 18:35 UTC1h 36m
2026-05-23 JIA5023 CMH → PHL May 23, 16:39 UTCMay 23, 18:34 UTC1h 55m
2026-05-23 JIA5642 PIT → DCA May 23, 13:55 UTCMay 23, 15:20 UTC1h 25m
2026-05-23 JIA5536 MHT → CLT May 23, 11:50 UTCMay 23, 12:15 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 N720PS page for operator, model, and routing details .

Mode-S A9A4E2 frequently asked

What is Mode-S code A9A4E2?
A9A4E2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N720PS.
Where is Mode-S A9A4E2 registered?
Mode-S code A9A4E2 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 A9A4E2 broadcasting right now?
Yes. Mode-S A9A4E2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9A4E2, octal 52322342, decimal 11,117,794.
What flights does A9A4E2 operate?
Mode-S A9A4E2 has broadcast 20 distinct callsigns, including JIA5180, JIA5171, JIA5119, JIA5457, JIA5403.