| IT | AS209058 | ISMARTFRAME SRL |
| IT | AS207985 | OSUAN S.r.l. |
| IT | AS207623 | ERG S.P.A. |
| IT | AS208919 | Data Felix |
| IT | AS199237 | EuroReti S.r.l. |
| IT | AS20697 | Collegio San Luigi |
| IT | AS198471 | Linkem |
| IT | AS207739 | FLONETSRLS |
| IT | AS8884 | CRIF S.p.A. |
| IT | AS211257 | Cloud Europe srl |
| IT | AS208011 | Antonio Liguori trading as ETS SISTEMI - ITALIA CONNESSIONI DI LIGUORI ANTONIO |
| IT | AS209368 | NOINET |
| IT | AS29094 | Banca Mediolanum S.p.A. |
| IT | AS206738 | TRC Toscana Radio Comunicazioni srl |
| IT | AS31144 | United Nations World Food Programme |
| SM | AS201852 | Bluindaco S.R.L. |
| IT | AS204694 | ISCHIA TELECOMUNICAZIONI S.R.L. |
| IT | AS57144 | BCC SISTEMI INFORMATICI S.P.A. |
| IT | AS28977 | United Nations Logistics Base |
| IT | AS208862 | SIRIANNI INFORMATICA S.R.L. IN SIGLA SIRINFO S.R.L. |
| IT | AS16027 | Allitude S.p.A. |
| IT | AS47178 | Soluzioni Potenza |
| IT | AS199699 | GAMGROUP-INET |
| IT | AS24780 | Autostrade per l'Italia S.P.A. |
| IT | AS60049 | CPL CONCORDIA Soc. Coop. |
| IT | AS205195 | EFSA - European Food Safety Authority |
| IT | AS31067 | SEAC S.p.A. |
| IT | AS200616 | Acciaierie Bertoli Safau S.p.A |
| IT | AS206035 | 2i Rete Gas S.p.A. |
| IT | AS196956 | Net-spring s.r.l. |
| IT | AS209902 | RAIWAY |
| IT | AS39719 | Liguria Digitale |
| IT | AS57525 | GRANDI NAVI VELOCI SPA |
| IT | AS204689 | Jakala S.P.A. |
| IT | AS199039 | CAMPANIACOM SPA |
| IT | AS29036 | NOTARTEL S.p.A. - SOCIETA' INFORMATICA DEL NOTARIATO - SOCIETA' BENEFIT |
| SM | AS39759 | Passepartout s.p.a. |
| IT | AS31087 | CGM TELEMEDICINE S.R.L. |
| IT | AS198898 | SETA S.R.L. |
| IT | AS204605 | S.A.C.B.O. s.p.a |
| IT | AS12498 | FinecoBank S.p.A. |
| IT | AS200944 | Eurobet Italia SRL |
| IT | AS31086 | Orthofix S.r.l. |
| IT | AS44767 | CABEL INDUSTRY SPA |
| IT | AS58316 | WiGate |
| IT | AS24994 | Genesys Informatica |
| IT | AS20745 | CNIT Italian National Consortium for Telecommunications |
| IT | AS202017 | ASM VIGEVANO E LOMELLINA SPA |
| IT | AS210280 | Blunova Trapani S.R.L. |
| IT | AS202074 | Link Telecomunicazioni SRL |
