AS20746 ASN-IDC Telecom Italia S.p.A.

ASN-IDC Telecom Italia S.p.A. · registered in Italy

IPv4 addresses213,248223 prefixes · 0.007% of announced IPv4

Rank in Italy#16largest network in IT by IPv4 space, of 1,081 · 0.41% of IT

Rank worldwide#1,034of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)3 prefixes

CountryItaly1,121 ASNs registered there

Open AS20746 in ASN lookup Look up an IP in this network (46.29.200.1) All networks in Italy

IPv4 prefixes

All 223 prefixes, in address order.

46.29.200.0/21
62.77.32.0/22
62.77.36.0/24
62.77.37.0/24
62.77.38.0/24
62.77.39.0/24
62.77.40.0/21
62.77.48.0/24
62.77.49.0/24
62.77.50.0/24
62.77.51.0/24
62.77.52.0/23
62.77.54.0/24
62.77.55.0/24
62.77.56.0/22
62.77.60.0/24
62.77.61.0/24
62.77.62.0/23
62.86.116.0/24
77.238.0.0/21
77.238.8.0/23
77.238.10.0/24
77.238.11.0/24
77.238.12.0/23
77.238.14.0/23
77.238.16.0/22
77.238.20.0/24
77.238.21.0/24
77.238.22.0/23
77.238.24.0/22
77.238.28.0/23
77.238.30.0/23
80.241.224.0/21
80.241.232.0/23
80.241.234.0/23
80.241.236.0/24
80.241.237.0/24
80.241.238.0/24
80.241.239.0/24
80.253.32.0/22
80.253.40.0/22
81.115.110.0/24
81.115.114.0/23
81.115.118.0/23
81.117.187.0/24
81.117.188.0/24
81.119.128.0/23
81.119.135.0/24
81.119.137.0/24
81.123.100.0/23
81.123.180.0/22
81.123.185.0/24
81.123.186.0/24
81.123.188.0/23
81.124.117.0/24
81.124.118.0/23
81.124.120.0/23
81.124.124.0/23
81.125.120.0/23
81.125.124.0/24
81.125.126.0/24
81.125.128.0/24
81.125.133.0/24
81.125.134.0/24
81.125.139.0/24
81.125.141.0/24
81.126.64.0/22
81.126.68.0/23
81.126.70.0/24
81.126.71.0/24
81.126.72.0/21
81.126.80.0/21
81.126.88.0/22
81.126.92.0/23
81.126.94.0/24
81.126.95.0/24
81.126.128.0/20
81.126.160.0/20
81.126.176.0/21
81.126.184.0/22
81.126.188.0/23
81.126.190.0/24
81.126.191.0/24
81.126.192.0/19
82.102.4.0/24
83.221.96.0/21
83.221.104.0/22
83.221.108.0/22
83.221.112.0/23
83.221.115.0/24
83.221.116.0/22
83.221.120.0/21
88.33.27.0/24
89.31.48.0/22
89.31.52.0/24
89.31.53.0/24
89.31.54.0/23
91.206.128.0/23
94.92.86.0/24
109.69.200.0/23
109.69.205.0/24
109.233.100.0/24
131.1.6.0/24
131.1.20.0/24
131.1.216.0/23
131.1.220.0/23
131.1.222.0/24
131.1.229.0/24
131.1.230.0/23
131.1.240.0/23
131.1.243.0/24
131.1.244.0/23
131.1.247.0/24
131.1.252.0/22
138.132.0.0/19
138.132.32.0/20
138.132.48.0/22
138.132.52.0/23
138.132.54.0/24
138.132.55.0/24
138.132.56.0/21
138.132.64.0/18
138.132.128.0/17
151.99.195.0/24
156.54.0.0/23
156.54.4.0/23
156.54.8.0/24
156.54.12.0/22
156.54.20.0/24
156.54.22.0/24
156.54.24.0/24
156.54.26.0/23
156.54.28.0/22
156.54.32.0/24
156.54.36.0/23
156.54.39.0/24
156.54.40.0/23
156.54.43.0/24
156.54.46.0/23
156.54.48.0/21
156.54.56.0/23
156.54.59.0/24
156.54.60.0/22
156.54.64.0/23
156.54.67.0/24
156.54.68.0/22
156.54.73.0/24
156.54.75.0/24
156.54.76.0/24
156.54.82.0/23
156.54.84.0/24
156.54.87.0/24
156.54.88.0/22
156.54.97.0/24
156.54.98.0/23
156.54.100.0/22
156.54.104.0/21
156.54.116.0/22
156.54.120.0/21
156.54.128.0/24
156.54.131.0/24
156.54.132.0/22
156.54.136.0/21
156.54.144.0/23
156.54.148.0/22
156.54.152.0/22
156.54.158.0/23
156.54.160.0/23
156.54.164.0/22
156.54.168.0/21
156.54.176.0/22
156.54.180.0/23
156.54.183.0/24
156.54.184.0/24
156.54.187.0/24
156.54.188.0/22
156.54.192.0/24
156.54.197.0/24
156.54.200.0/24
156.54.202.0/23
156.54.209.0/24
156.54.210.0/23
156.54.212.0/22
156.54.216.0/22
156.54.223.0/24
156.54.224.0/24
156.54.227.0/24
156.54.228.0/22
156.54.232.0/21
156.54.240.0/23
156.54.244.0/23
156.54.246.0/24
156.54.248.0/23
156.54.250.0/24
156.54.252.0/23
156.54.254.0/24
158.173.163.0/24
185.57.108.0/22
185.63.228.0/22
185.86.60.0/24
185.148.205.0/24
185.148.207.0/24
193.32.94.0/24
194.184.205.0/24
212.216.176.0/24
217.27.64.0/19
217.56.122.0/24
217.56.125.0/24
217.169.96.0/21
217.169.104.0/23
217.169.106.0/24
217.169.107.0/24
217.169.108.0/24
217.169.109.0/24
217.169.110.0/23
217.169.112.0/23
217.169.114.0/23
217.169.116.0/23
217.169.119.0/24
217.169.120.0/22
217.169.124.0/23
217.169.126.0/24
217.169.127.0/24

IPv6 prefixes

All 3 prefixes.

2001:4b18::/34
2001:4b18:4000::/34
2001:4b18:8000::/33

Similar-sized networks in Italy

ASNNameIPv4 addresses

AS210278#13 SKYIT-BB Sky Italia srl328,704

AS31034#14 ARUBA-ASN Aruba S.p.A.282,624

AS6762#15 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.280,832

AS213677#17 FIBERCOP Fibercop S.p.A.197,632

AS29286#18 SKYLOGIC-AS SKYLOGIC S.P.A.164,864

AS3313#19 INET-AS RETELIT-X S.R.L.158,208

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources