The strength return for 10 January 1943 shows 854 Luftwaffe aircraft in the whole Mediterranean area:
Fliegerführer Afrika: 178 aircraft
Fliegerkorps Tunis: 119
Kommando Roth: 48 (Gabés)
Fliegerkorps II (Italy): 311
Fliegerkorps X (Greece): 163
OB Süd: 35
Luftflotte 2: Mediterranean and North Africa
10. January 1943
Fliegerführer Afrika
Close-Reconnaissance: 4.(H)/12 Me 109 11 (3) Bir Dufen Koluft Pz. Armee Afrika
Long-Range Reconnaissance: 1.(F)/121 Ju 88 6 (4) Bir Ngem Fliegerführer Afrika
Castel Benito
Day-Fighter: Stab/JG 77 Me 109G 7 (6) Bir Dufen Nord Fliegerführer Afrika
I./JG 77 Me 109G 27 (19) Bir Dufen Nord Fliegerführer Afrika
II./JG 77 Me 109G 26 (15) Zarzur Fliegerführer Afrika
III./JG 77 Me 109G 29 (19) Bir Dufen Nord Fliegerführer Afrika
Schlacht: I./Schl.G 2 Me 109 27 (16) Zarzur Fliegerführer Afrika
4./Schl.G 2 Hs 129 7 (0) Castel Benito Fliegerführer Afrika
Stuka: III./St.G 3 Ju 87 38 (18 ) Bir Dufen Nord Fliegerführer Afrika
Kommando Roth (Gabes)
Close-Reconnaissance: Part 2.(H) /14 Me 109 4 (2) Gabes Kommando Roth
Day-Fighter: II./JG 51 Me 109G 30 (23) Gabes Kommando Roth
Stuka: II./St.G 3 Ju 87 14 (11) Gabes Kommando Roth
Fliegerkorps Tunis
Close-Reconnaissance: 2.(H) /14 Me 109 4 (2) Tunis-Aouina Fliegerkorps Tunis
Day-Fighter: II./JG 2 FW 190 23 (10) Kairouan Fliegerkorps Tunis
Me 109G
I./JG 53 Me 109G 36 (25) Mateur Fliegerkorps Tunis
II./JG 53 Me 109G 28 (20) Mateur Fliegerkorps Tunis
Schlacht: III./SKG 10 FW 190 14 (10) Bizerta Fliegerkorps Tunis
Stuka: Part II./St.G 3 Ju 87 14 (10) Sebala Fliegerkorps Tunis
II. Fliegerkorps
(Italy, Sicily & Sardinia)
Long-Range Reconnaissance: 1.(F) /122 Ju 88, FW 200 15 (4) Elmas II. Fliegerkorps
Day-Fighter: 7./JG 53 Me 109G 15 (11) Comiso II. Fliegerkorps
Zerstörer: III./ZG 26 Me 110 38 (22) Trapani II. Fliegerkorps
10./ZG 26 Ju 88C 11 (8 ) Trapani II. Fliegerkorps
III./ZG 1 Me 210 15 (15) Grottaglie & Lecce II. Fliegerkorps
Bomber: I./KG 26 He 111 19 (16) Elmas II. Fliegerkorps
II./KG 26 He 111 25 (8 ) Elmas II. Fliegerkorps
Stab/KG 30 Ju 88 1 (1) Comiso II. Fliegerkorps
II./KG 30 Ju 88 21 (17) Comiso II. Fliegerkorps
III./KG 30 Ju 88 24 (16) Comiso II. Fliegerkorps
9./KG 40 FW 200 14 (4) Lecce II. Fliegerkorps
Stab/KG 54 Ju 88 1 (1) Catania II. Fliegerkorps
II./KG 54 Ju 88 17 (10) Catania II. Fliegerkorps
III./KG 54 Ju 88 15 (10) Catania II. Fliegerkorps
Stab/KG 76 Ju 88 2 (2) Catania II. Fliegerkorps
I./KG 76 Ju 88 14 (8 ) Gerbin1 II. Fliegerkorps
II./KG 76 Ju 88 15 (10) Gerbini II. Fliegerkorps
Stab/KG 77 Ju 88 1 (0) Gerbini II. Fliegerkorps
I./KG 77 Ju 88 29 (15) Gerbini II. Fliegerkorps
1. u. 2./KG 60 Ju 88 19 (10) Elmas II./Fliegerkorps
X. Fliegerkorps
Long-Range Reconnaissance: 2.(F) /123 Ju 88, Ju 86R 13 (7) Kastelli & Tatoi X. Fliegerkorps
Day-Fighter: III./JG 27 Me 109G 21 (21) Kastelli X. Fliegerkorps
Bomber: Stab/LG 1 Ju 88 1 (1) Iraklion X. Fliegerkorps
I./LG 1 Ju 88 20 (10) Iraklion X. Fliegerkorps
II./LG 1 Ju 88 33 (21) Iraklion X. Fliegerkorps
III./KG 26 Ju 88 Torp. 23 (13) Iraklion X. Fliegerkorps
III./KG 100 He 111 38 (27) Kalamaki X. Fliegerkorps
Coastal-Reconnaissance: 2./SAGr. 125 Ar 196 14 (2) Suda X. Fliegerkorps
Oberbefehlshaber Süd
Long-Range Reconnaissance: Stab (F)/122 Ju 88 4 (3) Trapani Oberbefehlshaber Süd
2.(F)/122 Ju 88: Me 210 11 (6) Trapani Oberbefehlshaber Süd
Night-Fighter: Stab II./NJG 2 Ju 88C 1 (1) Comiso Oberbefehlshaber Süd
4./NJG 2 Ju 88C: Do 217 13 (9) Comiso Oberbefehlshaber Süd
Transport: Korps Kette X. Flkps. Fi 156 6 (3) Comiso Oberbefehlshaber Süd
(See:
http://www.lesbutler.ip3.co.uk/tony/tonywood.htm . . . and open the document "Mediterranean & Southern Front 1943. Vol II".)
Add 288 Italian aircraft in Tunisia (figure from 15 November 1942), but keep in mind that Regia Aeronautica was badly hampered by a lack of spare parts, ammunition, etc, due to chaos in the Italian war organisation by that time.
BTW - the Luftwaffe conducted a total of 8,413 sorties in the Mediterranean in January 1943 (Hooton, “Eagle in Flames”, p. 221) - mostly of course in Tunisia. That is a higher number than any previous month since the April 1942 air offensive against Malta. The January 1943 total is even 50 % higher than the totals for both November 1942 and December 1942 together.