Where to apply for a national visa?

My place of residence My visa application should be submitted to
Agrigento (AG), Ancona (AN), Arezzo (AR), Ascoli Piceno (AP), Avellino (AV),
Bari (BA), Benevento (BN), Brindisi (BR),
Cagliari (CA), Caltanissetta (CL),
Campobasso (CB), Caserta (CE),
Catania (CT), Catanzaro (CZ), Chieti (CH), Cosenza (CS), Crotone (KR), Enna (EN),
Firenze (FI), Foggia (FG),
Frosinone (FR), Grosseto (GR),
Isernia (IS), L'Aquila (AQ), Latina (LT),
Lecce (LE), Livorno (LI), Lucca (LU),
Macerata (MC), Massa Carrara (MS),
Matera (MT), Messina (ME), Napoli (NA),
Nuoro (NU), Oristano (OR), Palermo (PA),
Perugia (PG), Pesaro Urbino (PU),
Pescara (PE), Pisa (PI), Pistoia (PT),
Potenza (PZ), Prato (PO), Ragusa (RG),
Reggio Calabria (RC), Rieti (RI),
Roma (RM), Salerno (SA),
Sassari (SS), Siena (SI), Siracusa (SR),
Taranto (TA), Teramo (TE), Terni (TR),
Trapani (TP), Vibo-Valentia (VV),
Viterbo (VT) MALTA / SAN MARINO
Embassy of Switzerland in Rome 
Alessandria (AL), Asti (AT), Belluno (BL),
Bergamo (BG), Biella (BI), Bologna (BO),
Bolzano (BZ), Brescia (BS), Como (CO),
Cremona (CR), Cuneo (CN), Ferrara (FE),
Forlì-Cesena (FC), Genova (GE), Gorizia (GO),
Imperia (IM), La Spezia (SP), Lecco (LC),
Lodi (LO), Mantova (MN), Milano (MI),
Modena (MO), Novara (NO), Padova (PD),
Parma (PR), Pavia (PV), Piacenza (PC),
Pordenone (PN), Ravenna (RA),
Reggio Emilia (RE), Rimini (RN),
Rovigo (RO), Savona (SV), Sondrio (SO),
Torino (TO), Trento (TN), Treviso (TV),
Trieste (TS), Udine (UD), Valle d'Aosta (AO),
Varese (VA), Venezia (VE), Verbano Cusio Ossola (VB), Vercelli (VC), Verona (VR), Vicenza (VI)  
Consulate General of Switzerland in Milano

Foreign nationals who are subject to visa requirements must submit their application in person at the counter of the Swiss representation (Embassy or Consulate) competent for their place of residence. Incomplete applications (missing documents or photocopies) or sent by mail will be rejected. 

If necessary, additional documents may be requested later. 

The fees and expenses are to be paid in cash and in EURO when submitting the complete visa application. 

The visa application will be forwarded for decision to the competent cantonal migration office in Switzerland. The processing time for a decision can vary from 6 to 10 weeks. The competent Swiss representation (Embassy or Consulate) may issue an entry visa only after receiving authorization from the cantonal migration office in Switzerland.