AS20746 is the autonomous system of Telecom Italia S.p.A.. It holds 215,296 IPv4 addresses in 163 prefixes plus 1 IPv6 ranges, mainly in 
Italy.
By IPv4 addresses the network ranks #1,009 worldwide and #16 of 1,077 networks in Italy. That is 0.37% of the country’s IPv4 space.
The network spreads across 3 countries: Italy 100%, Portugal 0.12%, San Marino 0.12%.
The largest block is 138.132.0.0 to 138.132.255.255 with 65,536 addresses, geolocated to Castelletto.
- IPv4 addresses
- 215,296
- IPv4 prefixes
- 163
- World rank
- #1,009
- Country share
- 0.37%
- IPv6 ranges
- 1
Addresses by country
- Italy 100%
Portugal 0.12%
San Marino 0.12%
Largest blocks
- 138.132.0.0 Castelletto65,536
- 217.27.64.0 Milan8,192
- 81.126.192.0 Rome8,192
- 81.126.64.0 Milan8,192
- 77.238.0.0 Milan8,192
- 62.77.32.0 Milan8,192
- 81.126.160.0 Milan7,936
- 217.169.96.0 Milan5,632
Networks of similar size
216,576
216,320
215,808
215,808
214,528
214,528
214,272
214,016IPv4 prefixes
- 46.29.200.0/21
- 62.77.32.0/19
- 62.86.116.0/24
- 77.238.0.0/19
- 80.241.224.0/20
- 80.253.32.0/22
- 80.253.40.0/22
- 81.74.238.0/23
- 81.74.252.0/24
- 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
- 81.126.64.0/19
- 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
- 81.126.192.0/19
- 82.53.187.0/24
- 82.102.4.0/24
- 83.221.96.0/20
- 83.221.112.0/23
- 83.221.115.0/24
- 83.221.116.0/22
- 83.221.120.0/21
- 85.33.3.0/24
- 85.37.16.0/23
- 88.33.27.0/24
- 88.44.60.0/24
- 88.44.63.0/24
- 89.31.48.0/21
- 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
- 138.132.0.0/16
- 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
- 217.169.96.0/20
- 217.169.112.0/22
- 217.169.116.0/23
- 217.169.119.0/24
- 217.169.120.0/21
Questions and answers
Who owns AS20746?
Autonomous system AS20746 is operated by Telecom Italia S.p.A..
How many IP addresses does AS20746 have?
The network holds 215,296 IPv4 addresses in 163 prefixes, plus 1 IPv6 ranges.
Which country is AS20746 in?
The main country is Italy, with addresses in 2 more countries.
How big is AS20746?
By IPv4 addresses it ranks #1,009 worldwide.
What is the largest address block of AS20746?
138.132.0.0 to 138.132.255.255, 65,536 addresses.