AWS us-south-1 IP ranges

Amazon Web Services (AWS) region

The Amazon Web Services (AWS) region us-south-1 uses 45 IPv4 and 41 IPv6 blocks, covering about 196,504 unique IPv4 addresses. It is one of 42 AWS regions with published address ranges.

IPv4 blocks: 45
IPv6 blocks: 41
Unique IPv4 addresses: 196,504

Range data updated 2026-11-07

us-south-1 address prefixes

1.179.103.0/24
5.60.48.0/20
13.248.82.0/24
15.177.108.0/24
15.190.176.0/20
15.190.224.0/22
15.248.167.0/32
15.248.167.1/32
15.248.167.2/32
15.248.167.3/32
15.248.167.4/32
15.248.167.5/32
15.248.167.6/32
15.248.167.7/32
15.248.167.8/32
15.248.167.9/32
15.248.167.10/32
15.248.167.11/32
15.248.167.12/32
15.248.167.13/32
15.248.167.14/32
15.248.167.15/32
15.248.167.16/32
15.248.167.17/32
15.248.167.18/32
15.248.167.19/32
15.248.167.20/32
15.248.167.21/32
15.248.167.22/32
15.248.167.23/32
15.248.176.0/21
15.248.195.0/24
16.15.60.0/22
23.254.28.0/23
23.254.32.0/21
35.71.90.0/24
35.128.128.0/18
40.235.128.0/18
46.168.0.0/15
52.94.250.192/28
64.37.64.0/18
76.223.170.144/28
150.222.55.192/27
150.222.55.224/27
150.222.56.0/27
2600:1f00:800::/64
2600:1f10:8000::/36
2600:1f11:2000::/36
2600:1f12:2000::/36
2600:1f1a:2000::/36
2600:1f20:8000::/36
2600:1f21:2000::/36
2600:1f22:2000::/36
2600:1f2a:2000::/36
2600:1f30:800::/40
2600:1f32:800::/40
2600:1f36:800::/40
2600:1f38:800::/40
2600:1f60:800::/40
2600:1f61:800::/40
2600:1f62:800::/40
2600:1f6a:1200::/46
2600:1f6a:2200::/46
2600:1f6a:a200::/46
2600:1f70:800::/40
2600:1fa0:800::/40
2600:1fb9:800::/40
2600:1fba:800::/40
2600:1fbb:800::/40
2600:1fe7:800::/40
2600:1fe8:800::/40
2600:1fe9:800::/40
2600:1fea:800::/40
2600:1feb:800::/40
2600:1fef:800::/40
2600:1ff0:800::/40
2600:1ff2:800::/40
2600:1ff3:800::/40
2600:1ff4:800::/40
2600:1ff6:800::/40
2600:1ff8:800::/40
2600:1ff9:800::/40
2600:1ffe:800::/40
2600:1fff:800::/40
2600:f0f0:6027::/48
2620:107:4000:8800::/56

Using these ranges

Region prefix lists are used to allowlist traffic from workloads in us-south-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-west-1586 blocks
us-west-2804 blocks

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