AWS il-central-1 IP ranges

Amazon Web Services (AWS) region

The Amazon Web Services (AWS) region il-central-1 uses 66 IPv4 and 46 IPv6 blocks, covering about 939,399 unique IPv4 addresses. It is one of 42 AWS regions with published address ranges.

IPv4 blocks: 66
IPv6 blocks: 46
Unique IPv4 addresses: 939,399

Range data updated 2026-11-07

il-central-1 address prefixes

1.178.25.0/24
3.2.95.0/24
3.2.127.0/24
3.5.56.0/22
13.248.72.0/24
15.177.99.0/24
15.190.0.0/22
15.190.16.0/20
15.230.62.0/24
15.248.48.0/21
15.251.0.26/32
15.251.0.27/32
15.251.0.28/32
15.251.0.29/32
16.12.12.0/23
16.12.14.0/24
16.164.0.0/16
16.164.22.0/31
16.164.22.4/30
16.164.136.0/25
16.164.160.0/22
16.165.0.0/16
18.96.160.0/19
35.48.0.0/15
35.54.60.0/24
35.71.122.0/24
51.16.0.0/15
51.16.96.192/26
51.16.97.0/26
51.16.97.64/26
51.16.103.16/28
51.16.103.32/27
51.16.103.128/25
51.16.104.0/23
51.16.149.0/24
51.16.150.0/24
51.16.183.64/27
51.16.183.224/29
51.16.204.0/24
51.16.205.0/24
51.16.238.0/23
51.16.240.0/22
51.16.255.0/24
51.17.0.0/24
51.17.1.0/24
51.17.72.0/22
51.17.129.160/28
51.17.129.176/28
51.84.0.0/16
51.85.0.0/16
51.86.0.0/15
52.93.32.184/32
52.94.250.32/28
54.5.0.0/16
54.6.0.0/16
54.7.0.0/16
54.8.0.0/16
54.239.1.240/28
64.66.148.0/24
99.77.163.0/24
99.151.152.0/21
104.255.58.236/32
104.255.58.237/32
150.222.52.0/27
150.222.52.32/27
150.222.52.64/27
2600:f0f0:20::/48
2600:f0f0:4110::/48
2600:f0f0:611f::/48
2600:f0f0:613f::/48
2600:f0f0:c124::/48
2600:f0f1:8f::/48
2600:f0f3:f010:2d00::/56
2600:f0fb:f10f::/48
2a01:578:0:7700::/56
2a05:d000:5000::/40
2a05:d015::/36
2a05:d025::/36
2a05:d025:451:7d00::/56
2a05:d025:4c1:4700::/56
2a05:d025:9d2:eb00::/56
2a05:d025:e59:fb00::/56
2a05:d025:1000::/36
2a05:d025:1000::/48
2a05:d030:5000::/40
2a05:d031:5000::/40
2a05:d032:5000::/40
2a05:d036:5000::/40
2a05:d038:5000::/40
2a05:d039:5000::/40
2a05:d03a:5000::/40
2a05:d040:5000::/40
2a05:d050:5000::/40
2a05:d059:5000::/40
2a05:d05a:5000::/40
2a05:d05b:5000::/40
2a05:d068:5000::/40
2a05:d069:5000::/40
2a05:d06a:5000::/40
2a05:d06b:5000::/40
2a05:d06f:5000::/40
2a05:d070:5000::/40
2a05:d072:5000::/40
2a05:d073:5000::/40
2a05:d074:5000::/40
2a05:d076:5000::/40
2a05:d078:5000::/40
2a05:d079:5000::/40
2a05:d07c:5000::/40
2a05:d07d:5000::/40
2a05:d07e:5000::/40
2a05:d07f:5000::/40

Using these ranges

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

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