181.0.0.0/8
1,948 announced IP ranges across this /8. Select a /16 block below for its own breakdown and assigned ranges.
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 181.0.0.0/16 | Argentina (100%) | 1 | 1 | 1 |
| 181.1.0.0/16 | Paraguay (50%) | 2 | 2 | 2 |
| 181.10.0.0/16 | Argentina (100%) | 1 | 4 | 8 |
| 181.13.0.0/16 | Argentina (100%) | 1 | 5 | 13 |
| 181.14.0.0/16 | Argentina (100%) | 1 | 2 | 2 |
| 181.15.0.0/16 | Argentina (100%) | 1 | 2 | 4 |
| 181.16.0.0/16 | Argentina (100%) | 1 | 5 | 13 |
| 181.17.0.0/16 | Venezuela (100%) | 1 | 1 | 1 |
| 181.20.0.0/16 | Argentina (100%) | 1 | 1 | 1 |
| 181.25.0.0/16 | Argentina (100%) | 1 | 1 | 2 |
| 181.28.0.0/16 | Argentina (100%) | 1 | 1 | 1 |
| 181.30.0.0/16 | Argentina (100%) | 1 | 1 | 1 |
| 181.32.0.0/16 | Colombia (100%) | 1 | 1 | 1 |
| 181.33.0.0/16 | Colombia (100%) | 1 | 1 | 1 |
| 181.34.0.0/16 | Venezuela (100%) | 1 | 1 | 1 |
| 181.36.0.0/16 | Dominican Republic (100%) | 1 | 1 | 10 |
| 181.37.0.0/16 | Dominican Republic (100%) | 1 | 1 | 14 |
| 181.38.0.0/16 | Panama (100%) | 1 | 1 | 1 |
| 181.39.0.0/16 | Ecuador (100%) | 1 | 1 | 21 |
| 181.40.0.0/16 | Paraguay (100%) | 1 | 1 | 10 |
| 181.41.0.0/16 | United States (22%) | 21 | 32 | 50 |
| 181.42.0.0/16 | Chile (100%) | 1 | 2 | 11 |
| 181.43.0.0/16 | Chile (100%) | 1 | 1 | 8 |
| 181.44.0.0/16 | Argentina (100%) | 1 | 1 | 3 |
| 181.45.0.0/16 | Argentina (100%) | 1 | 1 | 4 |
| 181.46.0.0/16 | Argentina (100%) | 1 | 1 | 1 |
| 181.47.0.0/16 | Argentina (100%) | 1 | 1 | 4 |
| 181.48.0.0/16 | Colombia (100%) | 1 | 1 | 4 |
| 181.49.0.0/16 | Colombia (100%) | 1 | 2 | 8 |
| 181.50.0.0/16 | Colombia (100%) | 1 | 2 | 18 |
| 181.51.0.0/16 | Colombia (100%) | 1 | 2 | 12 |
| 181.52.0.0/16 | Colombia (100%) | 1 | 2 | 26 |
| 181.53.0.0/16 | Colombia (100%) | 1 | 2 | 27 |
| 181.54.0.0/16 | Colombia (100%) | 1 | 2 | 13 |
| 181.55.0.0/16 | Colombia (100%) | 1 | 2 | 24 |
| 181.56.0.0/16 | Colombia (100%) | 1 | 2 | 14 |
| 181.57.0.0/16 | Colombia (100%) | 1 | 2 | 15 |
| 181.58.0.0/16 | Colombia (100%) | 1 | 2 | 15 |
| 181.59.0.0/16 | Colombia (100%) | 1 | 2 | 23 |
| 181.60.0.0/16 | Colombia (100%) | 1 | 3 | 28 |
| 181.61.0.0/16 | Colombia (100%) | 1 | 2 | 17 |
| 181.62.0.0/16 | Colombia (100%) | 1 | 2 | 13 |
| 181.63.0.0/16 | Colombia (100%) | 1 | 2 | 28 |
| 181.64.0.0/16 | Peru (100%) | 1 | 1 | 32 |
| 181.65.0.0/16 | Peru (100%) | 1 | 1 | 25 |
| 181.66.0.0/16 | Peru (100%) | 1 | 1 | 23 |
| 181.67.0.0/16 | Peru (100%) | 1 | 1 | 35 |
| 181.68.0.0/16 | Colombia (100%) | 1 | 1 | 1 |
| 181.72.0.0/16 | Chile (100%) | 1 | 1 | 1 |
| 181.73.0.0/16 | Chile (100%) | 1 | 1 | 2 |
| 181.74.0.0/16 | Chile (100%) | 1 | 1 | 1 |
| 181.76.0.0/16 | Brazil (100%) | 1 | 1 | 1 |
| 181.77.0.0/16 | Brazil (100%) | 1 | 1 | 2 |
| 181.78.0.0/16 | Panama (50%) | 4 | 4 | 22 |
| 181.79.0.0/16 | Panama (38%) | 5 | 5 | 21 |
| 181.80.0.0/16 | Argentina (100%) | 1 | 3 | 5 |
| 181.81.0.0/16 | Argentina (100%) | 1 | 3 | 3 |
| 181.85.0.0/16 | Argentina (75%) | 2 | 3 | 4 |
| 181.91.0.0/16 | Paraguay (50%) | 2 | 2 | 2 |
| 181.93.0.0/16 | Argentina (100%) | 1 | 2 | 4 |
| 181.94.0.0/16 | Argentina (64%) | 2 | 4 | 14 |
| 181.95.0.0/16 | Argentina (100%) | 1 | 1 | 1 |
| 181.103.0.0/16 | Argentina (50%) | 3 | 3 | 6 |
| 181.104.0.0/16 | Argentina (100%) | 1 | 2 | 2 |
| 181.105.0.0/16 | Argentina (100%) | 1 | 4 | 7 |
| 181.111.0.0/16 | Argentina (100%) | 1 | 2 | 5 |
| 181.112.0.0/16 | Ecuador (100%) | 1 | 1 | 13 |
| 181.113.0.0/16 | Ecuador (100%) | 1 | 2 | 13 |
| 181.114.0.0/16 | Argentina (45%) | 6 | 12 | 20 |
| 181.115.0.0/16 | Guatemala (54%) | 2 | 2 | 13 |
| 181.116.0.0/16 | Argentina (100%) | 1 | 1 | 4 |
| 181.117.0.0/16 | Argentina (100%) | 1 | 1 | 4 |
| 181.118.0.0/16 | Argentina (58%) | 4 | 11 | 26 |
| 181.119.0.0/16 | United States (65%) | 3 | 3 | 37 |
| 181.120.0.0/16 | Paraguay (100%) | 1 | 1 | 2 |
| 181.121.0.0/16 | Paraguay (100%) | 1 | 1 | 4 |
| 181.122.0.0/16 | Paraguay (100%) | 1 | 1 | 1 |
| 181.123.0.0/16 | Paraguay (100%) | 1 | 1 | 2 |
| 181.124.0.0/16 | Paraguay (100%) | 1 | 1 | 7 |
| 181.126.0.0/16 | Paraguay (100%) | 1 | 1 | 4 |
| 181.127.0.0/16 | Paraguay (100%) | 1 | 1 | 4 |
| 181.128.0.0/16 | Colombia (100%) | 1 | 1 | 1 |
| 181.143.0.0/16 | Colombia (100%) | 1 | 1 | 1 |
| 181.144.0.0/16 | Colombia (100%) | 1 | 1 | 1 |
| 181.160.0.0/16 | Chile (100%) | 1 | 1 | 1 |
| 181.164.0.0/16 | Argentina (100%) | 1 | 1 | 1 |
| 181.172.0.0/16 | Chile (100%) | 1 | 1 | 1 |
| 181.174.0.0/16 | Argentina (30%) | 10 | 25 | 47 |
| 181.175.0.0/16 | Ecuador (100%) | 1 | 1 | 1 |
| 181.176.0.0/16 | Peru (100%) | 1 | 1 | 23 |
| 181.177.0.0/16 | Argentina (60%) | 6 | 10 | 15 |
| 181.178.0.0/16 | Panama (100%) | 1 | 1 | 1 |
| 181.180.0.0/16 | Venezuela (100%) | 1 | 1 | 1 |
| 181.188.0.0/16 | Ecuador (83%) | 4 | 11 | 24 |
| 181.189.0.0/16 | Brazil (42%) | 9 | 48 | 66 |
| 181.190.0.0/16 | Chile (100%) | 1 | 1 | 1 |
| 181.191.0.0/16 | Brazil (67%) | 7 | 67 | 73 |
| 181.192.0.0/16 | Brazil (59%) | 3 | 13 | 17 |
| 181.193.0.0/16 | Costa Rica (96%) | 2 | 2 | 24 |
| 181.194.0.0/16 | Costa Rica (100%) | 1 | 1 | 13 |
| 181.196.0.0/16 | Ecuador (100%) | 1 | 2 | 14 |
| 181.197.0.0/16 | Panama (95%) | 2 | 4 | 19 |
| 181.198.0.0/16 | Ecuador (100%) | 1 | 1 | 18 |
| 181.199.0.0/16 | Ecuador (32%) | 8 | 10 | 22 |
| 181.200.0.0/16 | Canada (100%) | 1 | 1 | 1 |
| 181.201.0.0/16 | Spain (100%) | 1 | 1 | 1 |
| 181.202.0.0/16 | Russia (100%) | 1 | 1 | 1 |
| 181.203.0.0/16 | Canada (100%) | 1 | 1 | 1 |
| 181.204.0.0/16 | Colombia (100%) | 1 | 1 | 1 |
| 181.207.0.0/16 | Colombia (100%) | 1 | 1 | 1 |
| 181.208.0.0/16 | Venezuela (100%) | 1 | 1 | 5 |
| 181.209.0.0/16 | Guatemala (72%) | 2 | 2 | 25 |
| 181.210.0.0/16 | Honduras (100%) | 1 | 1 | 1 |
| 181.211.0.0/16 | Ecuador (100%) | 1 | 2 | 18 |
| 181.212.0.0/16 | Chile (100%) | 1 | 2 | 3 |
| 181.213.0.0/16 | Brazil (100%) | 1 | 1 | 5 |
| 181.214.0.0/16 | United States (38%) | 20 | 69 | 214 |
| 181.215.0.0/16 | United States (32%) | 25 | 65 | 190 |
| 181.216.0.0/16 | Brazil (100%) | 1 | 1 | 1 |
| 181.217.0.0/16 | Brazil (100%) | 1 | 1 | 3 |
| 181.218.0.0/16 | Brazil (100%) | 1 | 1 | 3 |
| 181.219.0.0/16 | Brazil (100%) | 1 | 1 | 2 |
| 181.221.0.0/16 | Brazil (100%) | 1 | 1 | 1 |
| 181.222.0.0/16 | Brazil (100%) | 1 | 1 | 1 |
| 181.223.0.0/16 | Brazil (100%) | 1 | 1 | 2 |
| 181.224.0.0/16 | Brazil (39%) | 12 | 55 | 61 |
| 181.225.0.0/16 | Brazil (30%) | 9 | 25 | 30 |
| 181.226.0.0/16 | Chile (100%) | 1 | 1 | 7 |
| 181.227.0.0/16 | Bolivia (100%) | 1 | 1 | 1 |
| 181.228.0.0/16 | Argentina (100%) | 1 | 1 | 1 |
| 181.232.0.0/16 | Brazil (64%) | 9 | 40 | 42 |
| 181.233.0.0/16 | Brazil (56%) | 14 | 60 | 64 |
| 181.234.0.0/16 | Colombia (100%) | 1 | 1 | 2 |
| 181.235.0.0/16 | Colombia (100%) | 1 | 1 | 3 |
| 181.236.0.0/16 | Colombia (100%) | 1 | 2 | 12 |
| 181.237.0.0/16 | Colombia (100%) | 1 | 1 | 3 |
| 181.238.0.0/16 | Argentina (100%) | 1 | 1 | 5 |
| 181.239.0.0/16 | Argentina (100%) | 1 | 1 | 4 |
| 181.240.0.0/16 | Colombia (100%) | 1 | 1 | 1 |