The Live Mode-S website/database says this hex code is assigned to various aircraft. The FAA database indicates that this is a Beech B-100 assigned to N3538 owned by FLI HI LLC, 250 Clark Street, North Andover, MA.
There is not much on this company other than it started in 2009, is incorporated in Massachusetts and has no D&B listing. I did find US Security and Exchange filing for Flight Landata Inc that "provides high resolution airborne digital imaging systems and services." In the write up it indicates that the company provides digital imaging services to the U.S. Military.
Check out the flight profile it flew yesterday from KGVL Lee Gilmer Memorial Airport in Gainesville up here to the north Georgia mountains courtesy of Flightaware (click on image to enlarge it). Looks like they may have been imaging around Dahlonega and Camp Merrill which is a US Army Ranger training facility.
Here is the book on this aircraft over the last two months.
A3F362 Various --- 2014-04-10 18:36:51 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-10 17:27:48 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-09 13:59:53 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-08 14:29:17 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-06 14:47:56 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-05 18:16:15 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-05 17:20:48 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-05 16:39:12 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-05 16:02:55 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-05 14:37:32 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-03 14:38:47 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-02 18:41:30 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-02 16:14:21 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-02 15:21:28 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-02 14:33:15 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-01 16:13:57 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-01 15:34:26 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-04-01 13:26:24 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-03-31 17:25:05 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-03-31 13:07:44 Hanging Dog NC, US --- ---
A3F362 Various --- 2014-03-30 16:59:48 Hanging Dog NC, US 0000 10000
A3F362 Various --- 2014-03-30 13:35:09 Hanging Dog NC, US 0000 10000
A3F362 Various --- 2014-03-27 20:41:09 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-27 20:40:54 Baltimore MD, US 6510 14500
A3F362 Various --- 2014-03-27 17:59:31 Baltimore MD, US 6510 14500
A3F362 Various --- 2014-03-27 17:30:29 Baltimore MD, US 6510 14500
A3F362 Various --- 2014-03-27 16:43:11 Baltimore MD, US 6510 14500
A3F362 Various --- 2014-03-27 16:42:32 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-24 18:11:18 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-24 17:25:37 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-24 16:00:53 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-24 16:00:27 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-21 16:18:40 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-21 15:57:42 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-21 15:55:38 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-20 18:15:44 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-20 17:21:15 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-20 16:35:29 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-20 16:10:00 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-20 16:07:25 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-14 18:36:58 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-14 17:31:31 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-14 17:30:47 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-10 19:28:04 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-10 18:52:52 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-10 18:27:52 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-10 17:54:38 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-10 16:41:38 Baltimore MD, US --- ---
A3F362 Various --- 2014-03-10 16:36:33 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-06 19:02:50 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-06 17:35:46 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-05 18:31:46 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-05 18:27:53 Baltimore MD, US 5316 7100
A3F362 Various --- 2014-03-05 16:07:20 Villas NJ, US --- ---
A3F362 Various --- 2014-03-05 16:04:41 Fairfax, VA, US --- ---
A3F362 Various --- 2014-03-05 15:59:27 Baltimore MD, US 5316 7100
A3F362 Various --- 2014-03-05 14:50:44 Fairfax, VA, US --- ---
A3F362 Various --- 2014-02-28 12:33:46 Fairfax, VA, US --- ---
A3F362 Various --- 2014-02-28 12:20:46 Magnolia, DE, US --- ---
A3F362 Various --- 2014-02-28 11:59:20 Northeast MD, US --- 15600
A3F362 Various --- 2014-02-28 11:57:03 Villas NJ, US --- ---
A3F362 Various --- 2014-02-28 11:08:15 Northville NY, US --- ---
A3F362 Various --- 2014-02-28 11:07:19 Albany NY, US --- 15700
A3F362 Various --- 2014-02-28 11:01:34 Palmer, MA USA 3553 15700
A3F362 Various --- 2014-02-28 10:47:11 Northeast MA, US --- ---
A3F362 Various --- 2014-02-28 10:40:53 Billerica MA, US 3553 4200
A3F362 Various --- 2014-02-18 15:45:02 Billerica MA, US --- ---
A3F362 Various --- 2014-02-18 14:16:58 Gray ME, US --- ---
A3F362 Various --- 2014-02-14 15:48:51 Paisley, GB 6472 20000
A3F362 Various --- 2014-02-14 14:32:37 Carnoustie Scotland UK 6472 20000
A3F362 Various --- 2014-02-14 14:08:53 Best, NL 4147 20000
A3F362 Various --- 2014-02-14 14:02:36 Bemmel, NL 4147 20000
A3F362 Various --- 2014-02-14 14:02:33 Den Dolder, The Netherlands 4147 22850
A3F362 Various --- 2014-02-14 14:59:11 Sutton Upon Hull. UK --- ---
A3F362 Various @@@@@@@@ 2014-02-14 13:57:07 Naaldwijk, NL 4147 20000
A3F362 Various --- 2014-02-14 12:53:54 EHTW10, NL --- ---
A3F362 Various --- 2014-02-14 13:52:51 Apeldoorn, NL 4147 20000
A3F362 Various --- 2014-02-14 13:50:41 Malden, NL 4147 20000
A3F362 Various @@@@@@@@ 2014-02-14 13:49:12 Nieuwegein, NL 4147 20000
A3F362 Various --- 2014-02-14 14:48:29 N Sheffield UK --- ---
A3F362 Various @@@@@@@@ 2014-02-14 13:43:26 Sheffield, UK 6067 20000
A3F362 Various @@@@@@@@ 2014-02-14 13:42:51 Breda, NL 4147 20000
A3F362 Various --- 2014-02-14 13:42:51 Breda 2, NL --- 20000
A3F362 Various --- 2014-02-14 14:40:05 NORWICH GB --- ---
A3F362 Various @@@@@@@@ 2014-02-14 13:37:46 Breda East, NL 4147 20000
A3F362 Various @@@@@@@@ 2014-02-14 13:33:46 Boven Pekela, NL 4147 20000
A3F362 Various @@@@@@@@ 2014-02-14 14:29:08 Attleborough, UK 4147 20000
A3F362 Various --- 2014-02-14 14:28:39 Southwold,Suffolk,GB --- ---
A3F362 Various --- 2014-02-14 14:28:35 Brentwood, Essex GB --- ---
A3F362 Various @@@@@@@@ 2014-02-14 13:25:36 ETNG,DE --- ---
A3F362 Various @@@@@@@@ 2014-02-14 14:22:50 Wymondham, GB 0000 0
A3F362 Various --- 2014-02-14 14:15:55 Southend, GB --- ---
A3F362 Various --- 2014-02-14 12:12:52 Filderstadt, DE --- ---
A3F362 Various @@@@@@@@ 2014-02-14 12:09:10 12nm W of EDTY, DE --- ---
A3F362 Various --- 2014-02-14 10:52:12 EDDM-2,DE --- ---
A3F362 Various @@@@@@@@ 2014-02-14 10:48:06 Reichenkirchen, Germany --- ---
A3F362 Various --- 2014-02-14 09:51:32 EDDM-2,DE --- ---
A3F362 Various --- 2014-02-14 09:39:59 EDDM-1, DE --- ---
So is this N3538 - a Beech B-100 flying A3F362? What was A3F362 doing over in Europe in February? Is the Euro aircraft and the aircraft flying around here one and the same? Are we dealing with more than one aircraft flying the A3F362 hex code? Looks like they are doing some sort of digital imaging given the flight profile they flew yesterday. Nice "little" mystery. Hopefully I can catch these guys and try to get some additional or definitive answers.
In the meantime I would say that A3F362 is assigned to the aircraft that the FAA says it belongs to N3538 a Beech B-100 flying in and around Camp Merrill conducting digital imaging missions.