Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A948C4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N698DL · BOEING 757-200 · operated by DELTA AIR LINES INC

Hex
A948C4
Octal
52244304
Decimal
11,094,212
Country
US
Tail
N698DL
Type
B752
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
480
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S A948C4.

Country allocation

The ICAO 24-bit address A948C4 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
DAL1213 - 14 2026-07-14
DAL406 Delta Air Lines 11 2026-07-26
DAL1153 Delta Air Lines 11 2026-05-20
DAL1879 Delta Air Lines 10 2026-05-05
DAL1791 Delta Air Lines 10 2026-04-29
DAL2338 Delta Air Lines 9 2026-07-21
DAL1860 Delta Air Lines 9 2026-05-23
DAL1332 Delta Air Lines 8 2026-04-28
DAL1785 Delta Air Lines 7 2026-05-23
DAL1001 Delta Air Lines 7 2026-06-06
DAL725 Delta Air Lines 6 2026-04-17
DAL599 - 6 2026-07-06
DAL587 Delta Air Lines 6 2026-07-24
DAL2881 Delta Air Lines 6 2026-07-25
DAL2415 - 6 2026-07-16
DAL1591 - 6 2026-07-03
DAL1089 Delta Air Lines 6 2026-05-21
DAL8885 Delta Air Lines 5 2026-06-08
DAL759 - 5 2026-07-04
DAL748 - 5 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL406 BZN → ATL Jul 26, 15:20 UTCJul 26, 23:00 UTC7h 40m
2026-07-26 DAL1463 IAH → MSP Jul 26, 12:20 UTCJul 26, 13:20 UTC1h 0m
2026-07-25 DAL2881 ATL → MCO Jul 25, 23:40 UTCJul 26, 00:45 UTC1h 5m
2026-07-25 DAL2881 ATL → MCO Jul 25, 23:38 UTCJul 26, 00:41 UTC1h 3m
2026-07-25 DAL793 JFK → ATL Jul 25, 13:40 UTCJul 25, 22:15 UTC8h 35m
2026-07-25 DAL2080 MCO → LGA Jul 25, 11:15 UTCJul 25, 12:15 UTC1h 0m
2026-07-25 DAL2881 ATL → MCO Jul 25, 01:05 UTCJul 25, 02:05 UTC1h 0m
2026-07-24 DAL587 MEX → ATL Jul 24, 20:00 UTCJul 24, 23:00 UTC3h 0m
2026-07-24 DAL588 ATL → MEX Jul 24, 14:45 UTCJul 24, 17:30 UTC2h 45m
2026-07-24 DAL1486 JFK → MSY Jul 24, 11:38 UTCJul 24, 12:48 UTC1h 10m
2026-07-24 DAL1560 PBI → LGA Jul 24, 03:25 UTCJul 24, 04:25 UTC1h 0m
2026-07-24 DAL1560 PBI → LGA Jul 24, 03:23 UTCJul 24, 04:25 UTC1h 2m
2026-07-23 DAL531 LAX → SFO Jul 23, 21:30 UTCJul 24, 01:50 UTC4h 20m
2026-07-23 DAL672 SAN → JFK Jul 23, 14:58 UTCJul 23, 19:29 UTC4h 31m
2026-07-23 DAL672 SAN → JFK Jul 23, 15:00 UTCJul 23, 19:25 UTC4h 25m
2026-07-23 DAL8889 PHL → ATL Jul 23, 05:20 UTCJul 23, 06:55 UTC1h 35m
2026-07-23 DAL8889 PHL → ATL Jul 23, 05:15 UTCJul 23, 06:49 UTC1h 34m
2026-07-23 DAL8889 PHL → ATL Jul 23, 00:35 UTCJul 23, 04:05 UTC3h 30m
2026-07-22 DAL8889 PHL → ATL Jul 22, 21:00 UTCJul 22, 21:15 UTC15m
2026-07-22 DAL8771 - Jul 22, 13:05 UTCJul 22, 17:00 UTC3h 55m
2026-07-22 DAL8771 ATL → SEA Jul 22, 13:03 UTCJul 22, 17:35 UTC4h 32m
2026-07-22 DAL1168 FLL → ATL Jul 22, 09:39 UTCJul 22, 10:58 UTC1h 19m
2026-07-22 DAL1229 ATL → FLL Jul 22, 02:55 UTCJul 22, 04:15 UTC1h 20m
2026-07-21 DAL406 ATL → ATL Jul 21, 15:25 UTCJul 21, 23:45 UTC8h 20m
2026-07-21 DAL1338 ORF → ATL Jul 21, 12:15 UTCJul 21, 13:30 UTC1h 15m
2026-07-21 DAL2338 ATL → BDL Jul 21, 02:05 UTCJul 21, 03:30 UTC1h 25m
2026-07-20 DAL406 ATL → ATL Jul 20, 15:20 UTCJul 20, 23:55 UTC8h 34m
2026-07-20 DAL1338 - Jul 20, 12:10 UTCJul 20, 13:30 UTC1h 20m
2026-07-20 DAL2338 ATL → BDL Jul 20, 02:10 UTCJul 20, 03:40 UTC1h 30m
2026-07-19 DAL796 ATL → PHX Jul 19, 20:30 UTCJul 20, 00:05 UTC3h 35m
2026-07-19 DAL796 ATL → PHX Jul 19, 15:20 UTCJul 19, 18:25 UTC3h 5m
2026-07-19 DAL2569 JAX → ATL Jul 19, 12:35 UTCJul 19, 13:20 UTC45m
2026-07-19 DAL2569 JAX → ATL Jul 19, 12:35 UTCJul 19, 13:16 UTC41m
2026-07-19 DAL2276 ATL → JAX Jul 19, 03:40 UTCJul 19, 04:34 UTC54m
2026-07-19 DAL2276 - Jul 19, 03:40 UTCJul 19, 04:45 UTC1h 5m
2026-07-18 DAL591 LAS → ATL Jul 18, 21:55 UTCJul 19, 01:35 UTC3h 40m
2026-07-18 DAL421 - Jul 18, 16:45 UTCJul 18, 20:15 UTC3h 30m
2026-07-18 DAL421 DTW → LAS Jul 18, 16:41 UTCJul 18, 20:17 UTC3h 36m
2026-07-18 DAL1298 ATL → DTW Jul 18, 13:35 UTCJul 18, 15:00 UTC1h 25m
2026-07-17 DAL748 LAS → ATL Jul 17, 18:50 UTCJul 17, 22:25 UTC3h 35m
2026-07-17 DAL748 LAS → ATL Jul 17, 18:49 UTCJul 17, 22:23 UTC3h 34m
2026-07-17 DAL2262 MSP → LAS Jul 17, 14:35 UTCJul 17, 17:09 UTC2h 35m
2026-07-17 DAL377 JFK → SFO Jul 17, 07:40 UTCJul 17, 12:19 UTC4h 40m
2026-07-17 DAL377 JFK → SFO Jul 17, 00:30 UTCJul 17, 05:55 UTC5h 25m
2026-07-16 DAL2415 PDX → MSP Jul 16, 19:40 UTCJul 16, 22:30 UTC2h 50m
2026-07-16 DAL2415 MSP → PDX Jul 16, 14:25 UTCJul 16, 17:40 UTC3h 15m
2026-07-16 DAL1746 DTW → MSP Jul 16, 11:25 UTCJul 16, 12:55 UTC1h 30m
2026-07-16 DAL1746 DTW → MSP Jul 16, 11:23 UTCJul 16, 12:46 UTC1h 23m
2026-07-16 DAL1566 PHX → DTW Jul 16, 06:15 UTCJul 16, 09:40 UTC3h 25m
2026-07-16 DAL836 ATL → PHX Jul 16, 00:35 UTCJul 16, 04:10 UTC3h 35m

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 N698DL page for operator, model, and routing details .

Mode-S A948C4 frequently asked

What is Mode-S code A948C4?
A948C4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N698DL.
Where is Mode-S A948C4 registered?
Mode-S code A948C4 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 A948C4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A948C4, octal 52244304, decimal 11,094,212.
What flights does A948C4 operate?
Mode-S A948C4 has broadcast 20 distinct callsigns, including DAL1213, DAL406, DAL1153, DAL1879, DAL1791.