A list of all Italy ASNs including hosting providers, ISPs, and businesses with announced IPv4 and IPv6 prefixes.
| ASN | Type | IPv4 Routes | IPv6 Routes | Company |
|---|---|---|---|---|
| AS3269 | ISP & Mobile | 481 | 1 | Telecom Italia S.p.A. |
| AS20746 | ISP & Mobile | 340 | 6 | Telecom Italia S.p.A. |
| AS210218 | ISP & Mobile | 292 | 2 | Open Fiber S.P.A. |
| AS30722 | ISP & Mobile | 283 | 3 | Fastweb SpA |
| AS6762 | ISP & Mobile | 271 | 13 | TELECOM ITALIA SPARKLE S.p.A. |
| AS29286 | Other Business | 267 | 11 | SKYLOGIC S.P.A. |
| AS1267 | ISP & Mobile | 225 | 2 | WIND TRE S.P.A. |
| AS198471 | ISP & Mobile | 210 | 1 | Opnet Srl |
| AS12663 | ISP & Mobile | 170 | 2 | Fastweb SpA |
| AS50316 | ISP & Mobile | 130 | 1 | Net Global Srl |
| AS31638 | Government | 111 | 2 | Lepida S.c.p.A. |
| AS12874 | ISP & Mobile | 110 | 18 | Fastweb SpA |
| AS64445 | ISP & Mobile | 101 | 5 | NetJoin srl |
| AS31034 | Hosting Provider | 97 | 5 | Aruba S.p.A. |
| AS202870 | Other Business | 95 | 10 | Dimensione S.r.l. |
| AS137 | Education | 81 | 2 | Consortium GARR |
| AS3242 | Hosting Provider | 66 | 6 | REEVO S.P.A. |
| AS31115 | ISP & Mobile | 65 | 1 | INTRED S.p.A. |
| AS30848 | ISP & Mobile | 64 | 1 | UNIDATA S.p.A. |
| AS35612 | ISP & Mobile | 63 | 1 | EOLO S.p.A. |
| AS44831 | Other Business | 58 | 2 | Insiel- Informatica per il sistema degli enti locali S.p.A |
| AS48544 | ISP & Mobile | 57 | 0 | Tecnotel Servizi Tecnologici srl |
| AS21309 | ISP & Mobile | 56 | 1 | HERABIT S.p.A. |
| AS3302 | ISP & Mobile | 52 | 3 | Retelit Digital Services S.p.A. |
| AS47902 | ISP & Mobile | 50 | 2 | Retelit Digital Services S.p.A. |
| AS28716 | ISP & Mobile | 46 | 5 | Retelit Digital Services S.p.A. |
| AS21056 | ISP & Mobile | 42 | 1 | Vianova S.p.A |
| AS21176 | Other Business | 42 | 1 | Engineering D.HUB S.p.A. |
| AS8968 | ISP & Mobile | 41 | 1 | BT Italia S.p.A. |
| AS31263 | Other Business | 40 | 5 | MYNET S.R.L. |
| AS47242 | Hosting Provider | 39 | 0 | Host SpA |
| AS39120 | ISP & Mobile | 38 | 4 | Convergenze S.p.A. |
| AS197075 | ISP & Mobile | 37 | 7 | Active Network S.p.A. |
| AS44092 | ISP & Mobile | 37 | 5 | HAL Service SpA |
| AS25518 | Other Business | 36 | 0 | ZUCCHETTI SPA |
| AS12637 | Hosting Provider | 35 | 10 | SEEWEB s.r.l. |
| AS51580 | ISP & Mobile | 35 | 0 | TIMENET SPA |
| AS12551 | Other Business | 33 | 0 | ENEL S.p.A |
| AS48815 | Hosting Provider | 33 | 0 | CriticalCase s.r.l |
| AS208808 | Other Business | 32 | 0 | Enegan S.p.A. |
| AS201502 | ISP & Mobile | 29 | 1 | JCOM Telecomunicazioni s.c.a r.l. |
| AS56911 | ISP & Mobile | 28 | 13 | Warian S.R.L. |
| AS34758 | ISP & Mobile | 27 | 2 | Axera SpA |
| AS8612 | ISP & Mobile | 27 | 2 | Tiscali Italia S.P.A. |
| AS15584 | Other Business | 27 | 0 | Informatica Alto Adige Spa |
| AS60798 | Hosting Provider | 26 | 6 | Servereasy Srl |
| AS16379 | Other Business | 26 | 0 | UniCredit S.p.A. |
| AS200043 | Other Business | 26 | 0 | CESENA NET S.R.L. |
| AS44473 | Other Business | 26 | 0 | S.T. S.r.l. |
| AS41497 | ISP & Mobile | 25 | 1 | INTRED S.p.A. |
| AS213677 | ISP & Mobile | 25 | 0 | Fibercop S.p.A. |
| AS51185 | Hosting Provider | 24 | 21 | MainStreaming SpA |
| AS12779 | Hosting Provider | 24 | 5 | IT.Gate S.p.A. |
| AS49367 | Hosting Provider | 24 | 5 | Seflow s.r.l. |
| AS203059 | ISP & Mobile | 24 | 1 | Consorzio Energetico Val Venosta Soc. Coop. |
| AS197293 | ISP & Mobile | 24 | 0 | PROGETTO EVO S.R.L. |
| AS21451 | Other Business | 24 | 0 | Banca Sella Holding S.p.A. |
| AS42425 | Other Business | 24 | 0 | PSA S.r.l. |
| AS214677 | Other Business | 23 | 4 | Matteo Martelloni trading as DELUXHOST |
| AS41364 | Other Business | 23 | 1 | CONSORZIO TOPIX - TORINO E PIEMONTE EXCHANGE POINT |
| AS41327 | ISP & Mobile | 22 | 2 | Fiber Telecom S.p.A. |
| AS15691 | Other Business | 22 | 1 | UAN COMPANY S.R.L. |
| AS49289 | Other Business | 22 | 1 | Omegacom S.R.L.S. |
| AS196983 | ISP & Mobile | 22 | 0 | Elsynet S.r.l. |
| AS47217 | ISP & Mobile | 21 | 3 | Planetel SPA |
| AS39729 | Hosting Provider | 21 | 1 | REGISTER S.P.A. |
| AS43364 | ISP & Mobile | 21 | 1 | MEDIANET S.R.L. |
| AS15720 | Other Business | 21 | 0 | Poste Italiane S.p.A. |
| AS47136 | Other Business | 21 | 0 | Generali Operations Service Platform S.r.l. |
| AS61315 | Other Business | 21 | 0 | SED Multitel s.r.l. |
| AS21101 | Other Business | 20 | 0 | Sistemi Hardware&Software S.P.A. |
| AS41606 | Hosting Provider | 20 | 0 | Logos Technologies S.r.l. |
| AS43843 | ISP & Mobile | 20 | 0 | OPIQUAD S.P.A. |
| AS57300 | ISP & Mobile | 20 | 0 | Comuni Riuniti XL s.r.l. |
| AS8855 | ISP & Mobile | 20 | 0 | OPIQUAD S.P.A. |
| AS209902 | Hosting Provider | 19 | 8 | RAI WAY S.P.A. |
| AS34081 | Other Business | 19 | 4 | INCUBATEC GmbH - Srl |
| AS16232 | ISP & Mobile | 19 | 1 | Telecom Italia S.p.A. |
| AS2594 | Government | 19 | 1 | CSI Piemonte |
| AS206460 | ISP & Mobile | 19 | 0 | SIM INFORMATICA SRL |
| AS39657 | ISP & Mobile | 19 | 0 | Comeser S.r.l. |
| AS39719 | Government | 19 | 0 | Liguria Digitale S.p.A. |
| AS34971 | Hosting Provider | 18 | 3 | CDLAN SpA |
| AS31617 | Hosting Provider | 18 | 2 | REEVO S.P.A. |
| AS198399 | ISP & Mobile | 18 | 1 | FASTCON srl |
| AS202675 | Other Business | 18 | 1 | Keliweb S.R.L |
| AS5394 | ISP & Mobile | 18 | 1 | UNIDATA S.p.A. |
| AS48135 | Other Business | 18 | 0 | Leonardo S.p.A. |
| AS56550 | ISP & Mobile | 18 | 0 | STEL S.R.L. |
| AS203462 | ISP & Mobile | 17 | 9 | NOVACONN SRL |
| AS198102 | ISP & Mobile | 17 | 1 | XSTREAM SRL |
| AS198721 | ISP & Mobile | 17 | 1 | Progetto8 Srl |
| AS12559 | Other Business | 17 | 0 | BCC SISTEMI INFORMATICI S.P.A. |
| AS198013 | ISP & Mobile | 17 | 0 | Ipkom Srl |
| AS206617 | ISP & Mobile | 17 | 0 | Neomedia S.r.l. |
| AS29312 | Government | 17 | 0 | Comune di Milano |
| AS20836 | Hosting Provider | 16 | 5 | CDLAN SpA |
| AS200185 | Hosting Provider | 16 | 1 | Aruba S.p.A. |
| AS205330 | ISP & Mobile | 16 | 1 | Ari@net SRL |
| AS213791 | Other Business | 16 | 1 | XeniaGroup SRL |