AWS us-west-1 IP ranges

Amazon Web Services (AWS) region

The Amazon Web Services (AWS) region us-west-1 uses 485 IPv4 and 101 IPv6 blocks, covering about 2 million unique IPv4 addresses. It is one of 42 AWS regions with published address ranges.

IPv4 blocks: 485
IPv6 blocks: 101
Unique IPv4 addresses: 1,990,870

Range data updated 2026-11-07

us-west-1 address prefixes

1.178.100.0/24
3.2.54.0/24
3.2.86.0/24
3.2.107.0/24
3.3.24.0/22
3.4.12.35/32
3.4.12.36/32
3.4.12.37/32
3.4.12.38/32
3.4.15.96/29
3.4.15.104/29
3.5.160.0/22
3.42.0.0/17
3.101.0.0/16
3.101.52.208/30
3.101.52.212/30
3.101.87.0/26
3.101.100.128/25
3.101.114.0/26
3.101.114.64/26
3.101.145.192/27
3.101.145.224/27
3.101.156.0/26
3.101.157.128/25
3.101.158.0/23
3.101.160.44/30
3.101.160.48/28
3.101.160.240/29
3.101.161.0/25
3.101.161.128/25
3.101.162.0/24
3.101.163.0/26
3.101.163.64/28
3.101.163.80/28
3.101.163.96/28
3.101.164.0/24
3.101.176.0/24
3.101.177.20/30
3.101.177.48/29
3.101.194.128/26
3.101.200.0/24
3.101.201.128/25
3.101.202.0/23
3.101.208.0/24
3.101.209.0/26
3.101.226.80/29
3.101.226.88/29
3.101.232.0/22
3.101.239.34/31
3.101.239.36/30
13.52.0.0/16
13.52.1.0/28
13.52.1.16/28
13.52.1.32/29
13.52.6.112/29
13.52.32.96/27
13.52.110.192/26
13.52.118.0/23
13.52.146.128/28
13.52.146.192/26
13.52.200.160/27
13.52.201.0/24
13.52.202.0/24
13.52.232.224/27
13.56.0.0/16
13.56.32.200/29
13.56.112.168/29
13.57.0.0/16
13.57.180.64/26
13.57.180.176/29
13.57.180.184/29
13.57.180.208/29
13.57.180.216/29
13.248.99.0/24
15.129.4.0/22
15.129.34.0/23
15.129.66.0/23
15.177.81.0/24
15.193.132.0/22
15.221.16.0/22
15.221.49.0/24
15.221.150.0/23
15.230.5.0/24
15.230.16.0/24
15.230.28.0/24
15.230.36.0/23
15.230.42.0/24
15.230.58.0/24
15.230.67.0/26
15.230.67.64/26
15.230.67.128/26
15.230.88.0/24
15.230.89.0/24
15.230.114.0/24
15.230.185.0/24
15.230.186.0/24
15.230.202.0/30
15.248.136.0/24
15.251.0.0/32
15.251.0.1/32
15.251.0.2/32
15.251.0.3/32
15.251.0.4/32
15.251.0.5/32
15.251.0.6/32
15.251.0.7/32
15.251.0.12/32
15.251.0.13/32
15.251.0.14/32
15.251.0.15/32
16.15.0.0/21
16.214.4.0/22
18.96.128.0/19
18.144.0.0/15
18.144.76.32/29
18.144.76.128/25
18.144.158.0/27
18.144.158.64/26
18.144.184.0/23
18.144.202.192/26
23.228.219.0/24
35.34.101.0/24
35.71.117.0/24
40.163.3.0/24
40.164.0.0/16
40.164.2.0/23
40.164.4.0/22
40.165.0.0/16
40.166.0.0/16
40.167.0.0/16
45.33.162.0/24
45.33.180.0/24
50.18.0.0/16
52.8.0.0/16
52.9.0.0/16
52.52.0.0/15
52.52.191.128/26
52.93.22.48/28
52.93.22.64/29
52.93.32.180/32
52.93.34.0/26
52.93.34.64/26
52.93.47.0/24
52.93.52.160/32
52.93.52.161/32
52.93.52.162/32
52.93.52.163/32
52.93.52.164/32
52.93.52.165/32
52.93.52.166/32
52.93.52.167/32
52.93.53.0/32
52.93.53.1/32
52.93.53.2/32
52.93.53.3/32
52.93.53.4/32
52.93.53.5/32
52.93.53.6/32
52.93.53.7/32
52.93.55.144/31
52.93.55.146/31
52.93.55.148/31
52.93.55.152/31
52.93.55.154/31
52.93.55.156/31
52.93.55.158/31
52.93.55.160/31
52.93.55.162/31
52.93.55.164/31
52.93.55.166/31
52.93.70.128/25
52.93.92.0/24
52.93.94.0/24
52.93.120.178/32
52.93.122.131/32
52.93.122.255/32
52.93.123.11/32
52.93.125.42/32
52.93.125.43/32
52.93.126.144/32
52.93.126.145/32
52.93.141.128/25
52.93.149.0/24
52.93.178.128/32
52.93.178.129/32
52.93.178.130/32
52.93.178.131/32
52.93.178.132/32
52.93.178.133/32
52.93.178.134/32
52.93.178.135/32
52.93.178.136/32
52.93.178.137/32
52.93.178.138/32
52.93.178.139/32
52.93.178.140/32
52.93.178.141/32
52.93.178.142/32
52.93.178.143/32
52.93.178.144/32
52.93.178.145/32
52.93.178.146/32
52.93.178.147/32
52.93.178.148/32
52.93.178.149/32
52.93.178.150/32
52.93.178.151/32
52.93.178.152/32
52.93.178.153/32
52.93.178.154/32
52.93.178.155/32
52.93.178.156/32
52.93.178.157/32
52.93.178.158/32
52.93.178.159/32
52.93.178.160/32
52.93.178.161/32
52.93.178.162/32
52.93.178.163/32
52.93.178.164/32
52.93.178.165/32
52.93.178.166/32
52.93.178.167/32
52.93.178.168/32
52.93.178.169/32
52.93.178.170/32
52.93.178.171/32
52.93.178.172/32
52.93.178.173/32
52.93.178.174/32
52.93.178.175/32
52.93.178.176/32
52.93.178.177/32
52.93.178.178/32
52.93.178.179/32
52.93.178.180/32
52.93.178.181/32
52.93.178.182/32
52.93.178.183/32
52.93.178.184/32
52.93.178.185/32
52.93.178.186/32
52.93.178.187/32
52.93.178.188/32
52.93.178.189/32
52.93.178.190/32
52.93.178.191/32
52.93.178.192/32
52.93.178.193/32
52.93.178.194/32
52.93.178.195/32
52.93.178.196/32
52.93.178.197/32
52.93.178.198/32
52.93.178.199/32
52.93.178.200/32
52.93.178.201/32
52.93.178.202/32
52.93.178.203/32
52.93.178.204/32
52.93.178.205/32
52.93.178.206/32
52.93.178.207/32
52.93.178.208/32
52.93.178.209/32
52.93.178.210/32
52.93.178.211/32
52.93.178.212/32
52.93.178.213/32
52.93.178.214/32
52.93.178.215/32
52.93.178.216/32
52.93.178.217/32
52.93.178.218/32
52.93.178.219/32
52.93.178.220/32
52.93.178.221/32
52.93.178.222/32
52.93.178.223/32
52.93.178.224/32
52.93.178.225/32
52.93.178.226/32
52.93.178.227/32
52.93.178.228/32
52.93.178.229/32
52.93.178.230/32
52.93.178.231/32
52.93.178.232/32
52.93.178.233/32
52.93.178.234/32
52.93.178.235/32
52.93.201.80/28
52.93.201.96/28
52.93.237.0/24
52.94.12.0/24
52.94.72.0/22
52.94.144.0/23
52.94.152.66/32
52.94.152.67/32
52.94.152.68/32
52.94.152.69/32
52.94.198.0/28
52.94.248.128/28
52.94.249.80/28
52.95.42.0/24
52.95.246.0/24
52.95.255.96/28
52.119.176.0/21
52.144.194.192/26
52.144.205.0/26
52.219.23.0/24
52.219.24.0/21
52.219.112.0/21
52.219.120.0/22
52.219.192.0/23
52.219.194.0/24
52.219.216.0/23
52.219.220.0/23
52.219.255.0/24
54.67.0.0/16
54.151.0.0/17
54.153.0.0/17
54.176.0.0/15
54.183.0.0/16
54.183.255.128/26
54.193.0.0/16
54.215.0.0/16
54.219.0.0/16
54.239.0.16/28
54.239.102.0/25
54.239.102.128/26
54.239.102.192/26
54.239.103.0/25
54.240.198.0/24
54.240.212.0/22
54.240.242.0/24
54.240.243.0/24
54.241.0.0/16
54.241.32.64/26
64.66.137.0/24
64.252.118.0/24
64.252.119.0/24
64.252.120.0/24
64.252.121.0/24
64.252.122.0/24
64.252.123.0/24
69.107.6.112/29
69.107.6.120/29
69.107.9.128/29
69.107.9.136/29
69.107.10.0/29
69.107.10.8/29
69.107.10.32/29
69.107.10.40/29
69.107.10.64/29
69.107.10.72/29
69.107.11.176/29
69.107.11.184/29
69.107.11.240/29
69.107.11.248/29
72.150.6.0/23
99.77.132.0/24
99.77.154.0/24
99.77.251.0/24
99.82.172.0/24
99.83.97.0/24
99.83.98.0/24
99.151.120.0/21
136.8.0.0/15
136.18.21.0/24
150.222.30.0/23
150.222.36.128/26
150.222.36.192/26
150.222.37.0/26
150.222.97.0/24
150.222.101.0/24
150.222.106.0/24
150.222.111.0/24
150.222.140.0/24
150.222.199.0/25
150.222.221.0/24
150.222.231.0/24
150.222.232.0/24
150.222.234.0/32
150.222.234.1/32
150.222.234.2/32
150.222.234.3/32
150.222.234.4/32
150.222.234.5/32
150.222.234.6/31
150.222.234.8/31
150.222.234.10/31
150.222.234.12/31
150.222.234.14/31
150.222.234.16/31
150.222.234.18/31
150.222.234.20/31
150.222.234.22/31
150.222.234.24/31
150.222.234.26/31
150.222.234.28/31
150.222.234.30/31
150.222.234.32/31
150.222.234.34/31
150.222.234.36/31
150.222.234.38/31
150.222.234.40/31
150.222.234.42/31
150.222.234.44/31
150.222.234.46/31
150.222.234.48/31
150.222.234.50/31
150.222.234.52/31
150.222.234.54/31
150.222.234.56/31
150.222.234.58/31
150.222.234.60/31
150.222.234.62/31
150.222.234.64/31
150.222.234.66/31
150.222.234.68/31
150.222.234.70/31
150.222.234.72/31
150.222.234.74/31
150.222.234.76/31
150.222.234.78/31
150.222.234.80/31
150.222.234.82/31
150.222.234.84/31
150.222.234.86/31
150.222.234.96/31
150.222.234.98/31
150.222.234.100/31
150.222.234.102/32
150.222.234.103/32
150.222.234.104/31
150.222.234.106/31
150.222.234.108/31
150.222.234.110/31
150.222.234.112/31
150.222.234.114/31
150.222.234.116/31
150.222.234.118/31
150.222.234.120/31
150.222.234.122/31
150.222.234.124/31
150.222.234.126/31
150.222.234.128/31
150.222.234.130/31
150.222.234.132/31
150.222.234.134/31
150.222.234.136/31
150.222.234.138/31
150.222.234.140/31
150.222.234.142/31
150.222.252.244/31
150.222.252.246/31
150.222.252.248/31
150.222.252.250/31
150.247.34.0/24
151.148.16.0/31
151.148.16.2/32
151.148.16.3/32
151.148.16.4/32
151.148.16.5/32
151.148.16.6/32
151.148.16.8/31
151.148.16.10/31
168.185.4.0/24
168.192.0.0/15
173.83.209.0/24
173.83.221.0/24
173.83.236.0/24
176.32.112.0/21
184.72.0.0/18
184.169.128.0/17
192.31.212.0/24
198.41.104.0/24
204.236.128.0/18
204.246.160.0/22
205.251.228.0/22
208.78.128.0/23
208.78.134.0/24
216.182.236.0/23
216.198.214.0/24
2600:1f00:c000::/40
2600:1f01:480a::/47
2600:1f01:48a0::/47
2600:1f01:4904::/47
2600:1f01:492a:2::/65
2600:1f01:492a:2:8000::/65
2600:1f01:492a:3::/65
2600:1f01:492a:3:8000::/65
2600:1f01:492a:4::/65
2600:1f01:492a:4:8000::/65
2600:1f01:492a:5::/65
2600:1f01:492a:5:8000::/65
2600:1f01:4930::/47
2600:1f1c::/36
2600:1f1c:da:600::/56
2600:1f1c:12d:e900::/56
2600:1f1c:7ff:f800::/56
2600:1f1c:f8e:5d00::/56
2600:1f1c:fff:f800::/56
2600:1f2c::/36
2600:1f30:c000::/40
2600:1f32:c000::/40
2600:1f36:c000::/40
2600:1f38:c000::/40
2600:1f60:c000::/40
2600:1f61:c000::/40
2600:1f62:c000::/40
2600:1f70:c000::/40
2600:1f70:c000::/56
2600:1f70:c000:100::/56
2600:1f70:c000:200::/56
2600:1f70:c000:300::/56
2600:1f70:c000:400::/56
2600:1fa0:c000::/40
2600:1fb9:c000::/40
2600:1fba:c000::/40
2600:1fbb:c000::/40
2600:1fe7:c000::/40
2600:1fe8:c000::/40
2600:1fe9:c000::/40
2600:1fea:c000::/40
2600:1feb:c000::/40
2600:1fef:c000::/40
2600:1ff0:c000::/40
2600:1ff2:c000::/40
2600:1ff3:c000::/40
2600:1ff4:c000::/40
2600:1ff6:c000::/40
2600:1ff6:c000::/48
2600:1ff8:c000::/40
2600:1ff9:c000::/40
2600:1ffa:c000::/40
2600:1ffc:c000::/40
2600:1ffe:c000::/40
2600:1fff:c000::/40
2600:9000:5212::/48
2600:f001:4000::/40
2600:f00d::/40
2600:f0f0:1:2100::/56
2600:f0f0:310::/48
2600:f0f0:4101::/48
2600:f0f0:430c::/46
2600:f0f0:6115::/48
2600:f0f0:612b::/48
2600:f0f0:810b::/48
2600:f0f0:818f::/48
2600:f0f0:c100::/48
2600:f0f0:c121::/48
2600:f0f0:c130::/48
2600:f0f0:c131::/48
2600:f0f0:c132::/48
2600:f0f1:82::/48
2600:f0f1:44c0::/42
2600:f0f3:f010:200::/56
2600:f0fb:c006::/48
2600:f0fb:c804::/48
2600:f0fb:c900:6000::/52
2600:f0fb:ca04::/52
2605:b140:9800::/48
2606:f40:a00::/40
2606:f40:8a00::/40
2606:f40:ffeb::/48
2606:7b40:1a4f:8000::/60
2606:7b40:1b00:500::/56
2606:7b40:1b0f:8000::/56
2606:7b40:1b0f:8100::/56
2606:7b40:1b0f:8200::/56
2620:107:3000::/48
2620:107:300f::/48
2620:107:4000:2::/64
2620:107:4000:40::/64
2620:107:4000:2001::/64
2620:107:4000:4100::/62
2620:107:4000:4104::/64
2620:107:4000:4105::/64
2620:107:4000:4204::/64
2620:107:4000:7100::/56
2620:107:4000:9006::/64
2620:107:4000:9011::/64
2620:107:4000:9018::/64
2620:107:4000:9019::/64

Using these ranges

Region prefix lists are used to allowlist traffic from workloads in us-west-1, to route or geofence by cloud region, and to recognise AWS infrastructure in logs. Prefixes move between regions and services over time, so refresh any allowlist regularly rather than hard-coding it. An address inside these ranges tells you which network hosts it, not who is renting it; check each address's profile for risk evidence.

AWS ranges are tagged by region and service. An address inside an EC2 range is a customer-controlled virtual machine, so the owner of the traffic is the AWS customer, not Amazon; abuse reports go to AWS, which forwards them to the customer.

Other AWS regions

af-south-1156 blocks
ap-east-1166 blocks
ap-east-287 blocks
ap-northeast-1411 blocks
ap-northeast-2269 blocks
ap-northeast-3177 blocks
ap-south-1299 blocks
ap-south-2122 blocks
ap-southeast-1428 blocks
ap-southeast-2339 blocks
ap-southeast-3137 blocks
ap-southeast-4115 blocks
ap-southeast-5108 blocks
ap-southeast-683 blocks
ap-southeast-791 blocks
ca-central-1266 blocks
ca-west-197 blocks
cn-north-1153 blocks
cn-northwest-1147 blocks
eu-central-1654 blocks
eu-central-2101 blocks
eu-north-1246 blocks
eu-south-1238 blocks
eu-south-2168 blocks
eu-west-1531 blocks
eu-west-2416 blocks
eu-west-3230 blocks
eusc-de-east-195 blocks
il-central-1112 blocks
me-central-1105 blocks
me-south-1188 blocks
me-west-169 blocks
mx-central-188 blocks
sa-east-1308 blocks
sa-west-169 blocks
us-east-11,452 blocks
us-east-2579 blocks
us-gov-east-1125 blocks
us-gov-west-1156 blocks
us-south-186 blocks
us-west-2804 blocks

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