ASN Lookup

An ASN lookup helps you identify the Autonomous System Number (ASN) behind an IP address, including the ISP, network owner, and routing details. Use it to better understand IP ownership and network behavior.

Enter Autonomous System Number (ASN)

Result

Overview - AS12874

 Italy

12874

Fastweb SpA

fastweb.it

(ISP) Fixed Line ISP

3,563,008

633.8 Octillion

IP Coverage

Netblock Number of IPs   
2.16.17.0/24 256
2.19.179.0/24 256
2.224.0.0/13 524,288
2.232.0.0/13 524,288
5.1.44.0/24 256
5.152.240.0/21 2,048
23.61.204.0/24 256
31.131.240.0/21 2,048
37.99.240.0/24 256
37.153.135.0/24 256
37.186.192.0/18 16,384
45.82.228.0/22 1,024
45.90.124.0/24 256
62.101.64.0/19 8,192
62.101.96.0/20 4,096
62.101.112.0/21 2,048
62.101.120.0/22 1,024
62.101.124.0/22 1,024
62.177.0.0/20 4,096
62.182.103.0/24 256
64.126.250.0/24 256
80.67.66.0/24 256
81.208.0.0/18 16,384
81.208.64.0/18 16,384
83.103.0.0/18 16,384
83.103.64.0/18 16,384
84.53.184.0/24 256
85.18.0.0/17 32,768
85.18.128.0/17 32,768
85.118.144.0/23 512
89.39.200.0/24 256
89.43.192.0/24 256
89.96.0.0/16 65,536
89.97.0.0/16 65,536
91.225.244.0/22 1,024
92.223.128.0/17 32,768
92.242.172.0/22 1,024
93.32.0.0/16 65,536
93.33.0.0/16 65,536
93.34.0.0/15 131,072
93.36.0.0/16 65,536
93.37.0.0/17 32,768
93.37.128.0/17 32,768
93.38.0.0/16 65,536
93.39.0.0/16 65,536
93.40.0.0/17 32,768
93.40.128.0/18 16,384
93.40.192.0/18 16,384
93.41.0.0/16 65,536
93.42.0.0/16 65,536
93.43.0.0/16 65,536
93.44.0.0/15 131,072
93.46.0.0/15 131,072
93.48.0.0/13 524,288
93.56.0.0/14 262,144
93.60.0.0/15 131,072
93.62.0.0/15 131,072
151.0.128.0/17 32,768
158.255.240.0/21 2,048
170.248.136.0/24 256
176.122.196.0/23 512
176.122.198.0/24 256
185.7.112.0/22 1,024
185.22.84.0/24 256
185.22.85.0/24 256
185.27.72.0/24 256
185.27.73.0/24 256
185.36.72.0/22 1,024
185.43.19.0/24 256
185.69.188.0/22 1,024
185.139.48.0/24 256
185.139.49.0/24 256
185.146.134.0/24 256
185.162.179.0/24 256
185.169.184.0/24 256
185.169.185.0/24 256
185.169.186.0/24 256
185.169.187.0/24 256
185.190.214.0/24 256
185.190.215.0/24 256
185.219.180.0/22 1,024
185.219.232.0/24 256
185.219.234.0/24 256
185.223.153.0/24 256
193.3.50.0/24 256
193.27.28.0/22 1,024
193.35.4.0/22 1,024
193.42.234.0/24 256
193.42.238.0/24 256
193.43.16.0/24 256
193.43.17.0/24 256
193.169.20.0/24 256
193.193.0.0/19 8,192
194.5.146.0/24 256
194.59.208.0/22 1,024
194.63.146.0/24 256
194.99.35.0/24 256
213.140.0.0/20 4,096
213.140.16.0/20 4,096
213.156.32.0/20 4,096
213.156.48.0/20 4,096

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Netblock Number of IPs   
2001:b00::/30 316,912,650,057,057,350,374,175,801,344
2001:b04::/31 158,456,325,028,528,675,187,087,900,672
2001:b06::/32 79,228,162,514,264,337,593,543,950,336
2001:b07::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:1000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:2000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:3000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:4000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:5000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:6000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:7000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:8000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:9000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:a000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:b000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:c000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:d000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:e000::/36 4,951,760,157,141,521,099,596,496,896
2001:b07:f000::/36 4,951,760,157,141,521,099,596,496,896

Show more IP address ranges »

Geographic Distribution (IPv4)

Italy
 99.96%
United States of America
 0.02%
France
 0.01%
United Kingdom of Great Britain and Northern Ireland
 0%
Others
 0.010000000000005%

Usage & Classification (IPv4)

(COM) Commercial

11.8%

(ISP) Fixed Line ISP

2.49%

(MOB) Mobile ISP

1.89%

(DCH) Data Center/Web Hosting/Transit

1.01%

Commercial (COM)

Commercial networks are operated by for-profit businesses ranging from local startups to multinational corporations. These IPs facilitate e-commerce, internal corporate operations, and general business activities aimed at generating revenue.

Fixed Line ISP (ISP)

Internet Service Providers in this category offer wired broadband connections to homes, offices, and commercial buildings. They are responsible for the fundamental routing of internet traffic and the management of regional network infrastructure.

Mobile ISP (MOB)

Mobile network operators provide internet connectivity via cellular technologies such as 4G and 5G. These IPs are primarily used by smartphones, tablets, and IoT devices, offering flexible access for users on the move. They are characterized by wide geographic coverage and the ability to handle high volumes of roaming traffic.

Data Center/Web Hosting/Transit (DCH)

This category encompasses data centers, cloud hosting providers, and the transit networks that form the internet's backbone. These IPs are built for high-capacity and maximum uptime, supporting the infrastructure that hosts websites and cloud-based software.

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