It’s important how we choose our hosting provider and it depends on a lot of aspects. As a Public Administration I first would identify my visitors profile: how many they are, from where they connect (country), through which ISP they connect to the Internet.
Answering those simple questions I could select an hosting company that best fits my needs.
Now, in Italy the broadband consumer market (land lines) is dominated by Telecom Italia with a 49% share, Wind with 15.7%, Fastweb 14%, Vodafone 11.9% (Q1 2014 data).
Mobile market shows the following data: Telecom Italia 34.2%, Vodafone 30.7%, Wind 24.3%, H3G 10.8% (Q1 2014 data).
That simply means that your web site, in Italy, should be perfectly reachable from Telecom Italia customers, Wind’s, Vodafone‘s and Fastweb‘s. It is true for the majority of italian Public Administration’s web sites, our study finds. Out of 8.405 hosts, 25.41% is hosted by Telecom Italia, 23,41% by Aruba and 6.6% by Fastweb.
Here you can read which Autonomous Systems are hosting more than 100 italian Public Administration web sites:
SITE AS NAME 1968 AS31034 ARUBA 1710 AS20746 Telecomitalia SPA 555 AS12874 Fastweb SPA 426 AS3269 Telecomitalia SPA 388 AS24994 Genesys informatica SRL 373 AS5396 MC-link SPA 314 AS5602 KPNQwest Italia SPA 270 AS31638 Lepida SPA 251 AS44084 Multiwire SRL 238 AS12637 Seeweb SRL 166 AS8855 PROMO.IT SRL 166 AS44831 Insiel SPA 146 AS9104 Clio SPA 142 AS16276 OVH SAS (FR) 131 AS2594 CSI Piemonte 121 AS6882 PEGASO Regione Toscana 116 AS3242 ITnet SRL 113 AS39729 Register.IT SPA 107 AS41651 Regione del Veneto 106 AS8075 Microsoft Corporation (US) 103 AS15830 TELECITYGROUP INTERNATIONAL LTD (GB) 101 AS24940 Hetzner Online AG (DE)
Some of the ASes listed above actually connect to an Internet exchange point thereby reducing the average per-bit delivery cost of their service and improving their routing efficiency and fault-tolerance. Although a lot of them are not exchanging Internet routes with Telecom Italia, I’ll leave out the discussion about Telecom Italia de-peering decision.
[Raw hostnames from: http://siamogeek.com/analisi-siti-pa/download-dati-analisi-siti-pa/ ]