asn.dev

Address space

AS12874 FASTWEB

IPv4 prefixes 63 3.56M addresses
IPv6 prefixes 1
Most common size /24 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/11
/11: 1
1
/12
/12: 1
1
/15
/15: 1
1
/16
/16: 1
1
/17
/17: 4
4
/18
/18: 2
2
/19
/19: 3
3
/20
/20: 1
1
/21
/21: 3
3
/22
/22: 11
11
/23
/23: 7
7
/24
/24: 28
28

How this network carves its IPv4 space. A wall of /24s usually means many small customer assignments or fine-grained traffic engineering; a few short prefixes means large contiguous allocations announced whole.

Shape

Prefix sizes

IPv6
/29
/29: 1
1

Geography

Where the space lands

CountryNamePrefixes
ITItaly64

Inventory

All prefixes

64 total
PrefixFamilyAddressesCountryFlags
2.16.17.0/24IPv4256IT
2.19.179.0/24IPv4256IT
2.224.0.0/12IPv41,048,576IT
5.1.44.0/24IPv4256IT
5.152.240.0/21IPv42,048IT
23.61.204.0/24IPv4256IT
31.131.240.0/21IPv42,048IT
37.99.240.0/24IPv4256IT
37.153.135.0/24IPv4256IT
37.186.192.0/18IPv416,384IT
45.82.228.0/22IPv41,024IT
45.90.124.0/24IPv4256IT
62.101.64.0/18IPv416,384IT
62.177.0.0/20IPv44,096IT
62.182.103.0/24IPv4256IT
64.126.250.0/24IPv4256IT
80.67.66.0/24IPv4256IT
81.208.0.0/17IPv432,768IT
83.103.0.0/17IPv432,768IT
84.53.184.0/24IPv4256IT
85.18.0.0/16IPv465,536IT
85.118.144.0/23IPv4512IT
89.39.200.0/24IPv4256IT
89.43.192.0/24IPv4256IT
89.96.0.0/15IPv4131,072IT
91.225.244.0/22IPv41,024IT
92.223.128.0/17IPv432,768IT
92.242.172.0/22IPv41,024IT
93.32.0.0/11IPv42,097,152IT
151.0.128.0/17IPv432,768IT
158.255.240.0/21IPv42,048IT
170.248.136.0/24IPv4256IT
176.122.196.0/23IPv4512IT
176.122.198.0/24IPv4256IT
185.7.112.0/22IPv41,024IT
185.22.84.0/23IPv4512IT
185.27.72.0/23IPv4512IT
185.36.72.0/22IPv41,024IT
185.43.19.0/24IPv4256IT
185.69.188.0/22IPv41,024IT
185.139.48.0/23IPv4512IT
185.146.134.0/24IPv4256IT
185.162.179.0/24IPv4256IT
185.169.184.0/22IPv41,024IT
185.190.214.0/23IPv4512IT
185.219.180.0/22IPv41,024IT
185.219.232.0/24IPv4256IT
185.219.234.0/24IPv4256IT
185.223.153.0/24IPv4256IT
193.3.50.0/24IPv4256IT
193.27.28.0/22IPv41,024IT
193.35.4.0/22IPv41,024IT
193.42.234.0/24IPv4256IT
193.42.238.0/24IPv4256IT
193.43.16.0/23IPv4512IT
193.169.20.0/24IPv4256IT
193.193.0.0/19IPv48,192IT
194.5.146.0/24IPv4256IT
194.59.208.0/22IPv41,024IT
194.63.146.0/24IPv4256IT
194.99.35.0/24IPv4256IT
213.140.0.0/19IPv48,192IT
213.156.32.0/19IPv48,192IT
2001:b00::/29IPv6—IT