Noted this evening (02 Dec 2016) up out of Greenville, Tx is "ARMY646" 09-(0)0646 hexcode AE2F63 - en route to Hagerstown, Md.MC-12S Emarss-S 4 contracted/delivered by Boeing and former Emarss-EMD all 224th MIB indeed,
Serials:
11-00265 cn FL-716 Hexcode AE58B4
11-00266 cn FL-734 Hexcode AE58B6 deployed MiddleEast apr-2016
11-00267 cn FL-736 Hexcode AE58B7 deployed MiddleEast apr-2016
11-00268 cn FL-738 Hexcode AE58B5
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MC-12S-1 Emarss-G 4 contracted/delivered by L3 and former Constant Hawk(5x) and Tacop(3x)
Serials:
11-00283 cn FL-716 Hexcode AE53FF This is 1st Emarss-G and ex Tacop
Other will be 11-00284 and 11-00285 (these are still flying around with there civil registrations N8107F and N8148S i believe).
12-00280 cn FL-447 Hexcode AE53FA This is the 2nd Emarss-G, and ex Constant Hawk Delivered beginning November to Ft Huachuca
Others will be 12-00278 (still as N15EW)/00279 (Hexcode AE53FB cn FL-416)/00281 (still as N45AJ?) and 00282(still as N316W).
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MC-12S-2 Emarss-M 8 contracted L3 and Sierra Nevada, former USAF MC-12W
Serials:
10-00737 1st Emarss-M Hexcode AE4C63
+7 others, i believe at least 5 are current at Greenville/ Texas for conversion or maintenance.
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MC-12S-3 Emarss-V 4 contracted/delivered by Sierra Nevada
Serials:
11-00287 cn FL-834 Hexcode AE5C92 this is the 1st MC-12S-3 and delivered Ft Huachuca oct-16
11-00286 cn FL-780 Hexcode AE5A42 still in the Middle East.
13-00282 cn FL-797 Hexcode AE5622 arrived may-16 Hagerstown so 2nd conversion??
13-00283 cn FL-663 Hexcode AE5623 still in the Middle East.
Maybe this is one of the 7 other MC-12S-2 (EMARSS-M) mentioned above.