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 - AS137

 Italy

137

Consortium GARR

garr.net

(EDU) University/College/School

2,745,344

158.5 Octillion

IP Coverage

Netblock Number of IPs   
90.147.0.0/16 65,536
130.136.0.0/16 65,536
130.192.0.0/16 65,536
130.251.0.0/16 65,536
131.114.0.0/16 65,536
131.154.0.0/16 65,536
131.175.4.0/22 1,024
131.175.8.0/21 2,048
131.175.16.0/20 4,096
131.175.32.0/19 8,192
131.175.64.0/18 16,384
131.175.128.0/18 16,384
137.204.0.0/16 65,536
138.41.0.0/16 65,536
140.105.0.0/16 65,536
140.164.0.0/16 65,536
141.108.0.0/16 65,536
141.250.0.0/16 65,536
143.225.0.0/16 65,536
146.48.0.0/16 65,536
147.122.0.0/16 65,536
147.162.0.0/15 131,072
149.132.0.0/16 65,536
149.139.0.0/16 65,536
150.145.0.0/16 65,536
150.146.0.0/16 65,536
150.178.0.0/16 65,536
150.217.0.0/16 65,536
151.97.0.0/16 65,536
151.100.0.0/16 65,536
155.185.0.0/16 65,536
155.253.0.0/16 65,536
156.14.0.0/16 65,536
156.148.0.0/16 65,536
157.27.0.0/16 65,536
157.138.0.0/16 65,536
158.110.0.0/16 65,536
159.149.0.0/16 65,536
160.78.0.0/16 65,536
160.80.0.0/16 65,536
160.97.0.0/16 65,536
185.191.180.0/22 1,024
192.41.218.0/24 256
192.55.101.0/24 256
192.84.127.0/24 256
192.84.128.0/20 4,096
192.84.144.0/21 2,048
192.84.152.0/22 1,024
192.84.156.0/24 256
192.106.234.0/24 256
192.107.51.0/24 256
192.107.52.0/22 1,024
192.107.56.0/21 2,048
192.107.64.0/19 8,192
192.107.96.0/22 1,024
192.107.100.0/24 256
192.132.34.0/24 256
192.133.28.0/24 256
192.135.8.0/21 2,048
192.135.16.0/20 4,096
192.135.32.0/23 512
192.135.34.0/24 256
192.135.35.0/24 256
192.135.36.0/24 256
192.135.37.0/24 256
192.135.165.0/24 256
192.146.242.0/24 256
192.148.193.0/24 256
192.150.194.0/23 512
192.150.196.0/24 256
192.156.213.0/24 256
192.160.156.0/24 256
192.167.0.0/19 8,192
192.167.32.0/20 4,096
192.167.48.0/21 2,048
192.167.56.0/23 512
192.167.58.0/24 256
192.167.59.0/24 256
192.167.60.0/22 1,024
192.167.64.0/18 16,384
192.167.128.0/17 32,768
193.42.139.0/24 256
193.43.18.0/23 512
193.43.97.0/24 256
193.43.101.0/24 256
193.43.109.0/24 256
193.43.116.0/24 256
193.43.117.0/24 256
193.43.141.0/24 256
193.204.0.0/16 65,536
193.205.0.0/16 65,536
193.206.0.0/16 65,536
194.119.192.0/19 8,192
212.189.128.0/17 32,768

Show more IP address ranges »

Netblock Number of IPs   
2001:760::/32 79,228,162,514,264,337,593,543,950,336
2a00:1620::/32 79,228,162,514,264,337,593,543,950,336

Show more IP address ranges »

Geographic Distribution (IPv4)

Italy
 100%
United States of America
 0%
Japan
 0%

Usage & Classification (IPv4)

(EDU) University/College/School

79.86%

(ISP) Fixed Line ISP

17.01%

(COM) Commercial

2.99%

(GOV) Government

0.09%

(DCH) Data Center/Web Hosting/Transit

0.03%

University/College/School (EDU)

Educational IPs serve universities, colleges, and K-12 schools, providing the backbone for campus-wide connectivity. These networks support a wide array of activities, including academic research, student administration, and classroom instruction.

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.

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.

Government (GOV)

Government IPs are assigned to official agencies and entities at local, regional, and national levels. These networks are critical for managing public services, regulatory functions, and general administrative tasks.

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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