AWS us-east-1 IP ranges

Amazon Web Services (AWS) region

The Amazon Web Services (AWS) region us-east-1 uses 1,123 IPv4 and 329 IPv6 blocks, covering about 23 million unique IPv4 addresses. It is one of 42 AWS regions with published address ranges.

IPv4 blocks
1,123
IPv6 blocks
329
Unique IPv4 addresses
22,994,554

Range data updated 2026-11-07

us-east-1 address prefixes

The first 1,000 of 1,452 prefixes are listed.

Using these ranges

Region prefix lists are used to allowlist traffic from workloads in us-east-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

All Amazon Web Services (AWS) IP ranges · All providers · IP address lookup