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 - AS28580

 Brazil

28580

Cilnet Comunicacao E Informatica S.A.

fasternet.com.br

(ISP) Fixed Line ISP

90,112

79.2 Octillion

IP Coverage

Netblock Number of IPs   
45.7.204.0/24 256
45.7.205.0/24 256
45.7.206.0/24 256
45.7.207.0/24 256
45.166.124.0/24 256
45.166.125.0/24 256
45.166.126.0/24 256
45.166.127.0/24 256
45.170.140.0/24 256
45.170.141.0/24 256
45.170.142.0/24 256
45.170.143.0/24 256
45.224.76.0/24 256
45.224.77.0/24 256
45.224.78.0/24 256
45.224.79.0/24 256
45.237.16.0/23 512
45.237.18.0/23 512
138.0.180.0/24 256
138.0.181.0/24 256
138.0.182.0/24 256
138.0.183.0/24 256
138.122.68.0/23 512
138.122.70.0/23 512
138.186.180.0/24 256
138.186.181.0/24 256
138.186.182.0/24 256
138.186.183.0/24 256
143.0.232.0/22 1,024
168.90.184.0/24 256
168.90.185.0/24 256
168.90.186.0/24 256
168.90.187.0/24 256
168.194.4.0/24 256
168.194.5.0/24 256
168.194.6.0/24 256
168.194.7.0/24 256
168.194.228.0/24 256
168.194.229.0/24 256
168.194.230.0/24 256
168.194.231.0/24 256
170.245.20.0/23 512
170.245.22.0/23 512
170.247.116.0/23 512
170.247.118.0/23 512
177.85.40.0/24 256
177.85.41.0/24 256
177.85.42.0/24 256
177.85.43.0/24 256
177.101.48.0/21 2,048
177.101.56.0/21 2,048
186.195.176.0/22 1,024
186.195.180.0/22 1,024
186.195.184.0/22 1,024
186.195.188.0/22 1,024
186.224.128.0/23 512
186.224.130.0/23 512
186.224.132.0/23 512
186.224.134.0/23 512
186.224.136.0/23 512
186.224.138.0/23 512
186.224.140.0/23 512
186.224.142.0/23 512
186.224.144.0/23 512
186.224.146.0/23 512
186.224.148.0/23 512
186.224.150.0/23 512
186.224.152.0/23 512
186.224.154.0/23 512
186.224.156.0/23 512
186.224.158.0/23 512
186.224.160.0/19 8,192
187.45.0.0/23 512
187.45.2.0/23 512
187.45.4.0/23 512
187.45.6.0/23 512
187.45.8.0/22 1,024
187.45.12.0/22 1,024
187.45.16.0/23 512
187.45.18.0/23 512
187.45.20.0/23 512
187.45.22.0/23 512
187.45.24.0/22 1,024
187.45.28.0/24 256
187.45.29.0/24 256
187.45.30.0/24 256
187.45.31.0/24 256
187.84.0.0/22 1,024
187.84.4.0/22 1,024
187.84.8.0/22 1,024
187.84.12.0/22 1,024
189.28.224.0/22 1,024
189.28.228.0/22 1,024
189.28.232.0/22 1,024
189.28.236.0/24 256
189.28.237.0/24 256
189.28.238.0/23 512
189.28.240.0/22 1,024
189.28.244.0/22 1,024
189.28.248.0/22 1,024
189.28.252.0/22 1,024
189.39.80.0/24 256
189.39.81.0/24 256
189.39.82.0/24 256
189.39.83.0/24 256
189.39.84.0/24 256
189.39.85.0/24 256
189.39.86.0/24 256
189.39.87.0/24 256
189.39.88.0/24 256
189.39.89.0/24 256
189.39.90.0/24 256
189.39.91.0/24 256
189.39.92.0/24 256
189.39.93.0/24 256
189.39.94.0/23 512
189.51.208.0/22 1,024
189.51.212.0/22 1,024
189.51.216.0/22 1,024
189.51.220.0/22 1,024
191.253.224.0/22 1,024
191.253.228.0/22 1,024
191.253.232.0/22 1,024
191.253.236.0/22 1,024
191.253.240.0/22 1,024
191.253.244.0/22 1,024
191.253.248.0/22 1,024
191.253.252.0/22 1,024
200.187.80.0/22 1,024
200.187.84.0/22 1,024
200.187.88.0/22 1,024
200.187.92.0/22 1,024
201.46.32.0/22 1,024
201.46.36.0/22 1,024
201.46.40.0/22 1,024
201.46.44.0/22 1,024
201.46.48.0/22 1,024
201.46.52.0/22 1,024
201.46.56.0/22 1,024
201.46.60.0/22 1,024
201.150.100.0/24 256
201.150.101.0/24 256
201.150.102.0/24 256
201.150.103.0/24 256

Show more IP address ranges »

Netblock Number of IPs   
2804:90::/34 19,807,040,628,566,084,398,385,987,584
2804:90:4000::/40 309,485,009,821,345,068,724,781,056
2804:90:4100::/40 309,485,009,821,345,068,724,781,056
2804:90:4200::/40 309,485,009,821,345,068,724,781,056
2804:90:4300::/40 309,485,009,821,345,068,724,781,056
2804:90:4400::/38 1,237,940,039,285,380,274,899,124,224
2804:90:4800::/37 2,475,880,078,570,760,549,798,248,448
2804:90:5000::/40 309,485,009,821,345,068,724,781,056
2804:90:5100::/40 309,485,009,821,345,068,724,781,056
2804:90:5200::/40 309,485,009,821,345,068,724,781,056
2804:90:5300::/40 309,485,009,821,345,068,724,781,056
2804:90:5400::/38 1,237,940,039,285,380,274,899,124,224
2804:90:5800::/37 2,475,880,078,570,760,549,798,248,448
2804:90:6000::/40 309,485,009,821,345,068,724,781,056
2804:90:6100::/40 309,485,009,821,345,068,724,781,056
2804:90:6200::/40 309,485,009,821,345,068,724,781,056
2804:90:6300::/40 309,485,009,821,345,068,724,781,056
2804:90:6400::/40 309,485,009,821,345,068,724,781,056
2804:90:6500::/40 309,485,009,821,345,068,724,781,056
2804:90:6600::/40 309,485,009,821,345,068,724,781,056
2804:90:6700::/40 309,485,009,821,345,068,724,781,056
2804:90:6800::/37 2,475,880,078,570,760,549,798,248,448
2804:90:7000::/40 309,485,009,821,345,068,724,781,056
2804:90:7100::/40 309,485,009,821,345,068,724,781,056
2804:90:7200::/40 309,485,009,821,345,068,724,781,056
2804:90:7300::/40 309,485,009,821,345,068,724,781,056
2804:90:7400::/38 1,237,940,039,285,380,274,899,124,224
2804:90:7800::/37 2,475,880,078,570,760,549,798,248,448
2804:90:8000::/33 39,614,081,257,132,168,796,771,975,168
2804:5f4:c001::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c002::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c003::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c011::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c012::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c013::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c021::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c022::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c023::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c031::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c032::/48 1,208,925,819,614,629,174,706,176
2804:5f4:c033::/48 1,208,925,819,614,629,174,706,176

Show more IP address ranges »

Geographic Distribution (IPv4)

Brazil
 100%

Usage & Classification (IPv4)

(ISP) Fixed Line ISP

99.91%

(COM) Commercial

0.05%

(DCH) Data Center/Web Hosting/Transit

0.04%

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.

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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