Vianova S.p.A operates AS21056: 37 IPv4 prefixes covering 90,624 addresses, most of them in 
Italy.
By IPv4 addresses the network ranks #1,982 worldwide and #25 of 1,077 networks in Italy. That is 0.15% of the country’s IPv4 space.
The network spreads across 4 countries: Italy 99%, Singapore 0.44%, United States 0.44%.
The largest block is 46.44.192.0 to 46.44.255.255 with 16,384 addresses, geolocated to Pascarola.
- IPv4 addresses
- 90,624
- IPv4 prefixes
- 37
- World rank
- #1,982
- Country share
- 0.15%
- IPv6 ranges
- 1
Addresses by country
- Italy 99%
Singapore 0.44%
United States 0.44%
United Kingdom 0.19%
Largest blocks
- 46.44.192.0 Pascarola16,384
- 213.182.64.0 Guanzate8,192
- 94.138.160.0 Massarosa8,192
- 79.135.32.0 Montramito8,192
- 78.152.96.0 Massarosa8,192
- 91.143.192.0 Montramito4,096
- 80.93.128.0 Piano di Conca4,096
- 109.122.208.0 Piano di Conca2,048
Networks of similar size
90,880
90,624
90,624
90,624
90,624
90,624IPv4 prefixes
- 45.84.140.0/22
- 45.143.36.0/22
- 45.151.12.0/22
- 45.151.64.0/22
- 46.44.192.0/18
- 78.152.96.0/19
- 79.108.136.0/21
- 79.135.32.0/19
- 80.93.128.0/20
- 83.137.56.0/21
- 87.247.232.0/21
- 91.143.192.0/20
- 91.201.104.0/24
- 91.242.230.0/24
- 94.138.160.0/19
- 103.26.124.0/22
- 103.43.232.0/22
- 103.61.184.0/22
- 103.248.184.0/22
- 109.122.208.0/21
- 144.48.192.0/22
- 185.97.216.0/22
- 185.125.64.0/22
- 185.158.116.0/22
- 185.170.36.0/22
- 185.224.60.0/22
- 185.224.104.0/22
- 185.230.92.0/22
- 185.230.192.0/22
- 185.230.232.0/22
- 185.231.160.0/22
- 185.234.164.0/22
- 185.241.20.0/22
- 188.240.32.0/22
- 193.124.240.0/22
- 194.58.216.0/22
- 213.182.64.0/19
Questions and answers
Who owns AS21056?
Autonomous system AS21056 is operated by Vianova S.p.A.
How many IP addresses does AS21056 have?
The network holds 90,624 IPv4 addresses in 37 prefixes, plus 1 IPv6 ranges.
Which country is AS21056 in?
The main country is Italy, with addresses in 3 more countries.
How big is AS21056?
By IPv4 addresses it ranks #1,982 worldwide.
What is the largest address block of AS21056?
46.44.192.0 to 46.44.255.255, 16,384 addresses.