# Amazon Local Zones concepts
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These are the essential concepts in Amazon Local Zones:
+ **Local Zone** — An extension of an Amazon Region in geographic proximity to your users, where the Local Zone infrastructure is deployed.
+ **VPC** — A virtual private cloud (VPC) is a virtual network that closely resembles a traditional network that you'd operate in your own data center. You create subnets in your VPCs and deploy Amazon resources, such as Amazon EC2 instances, in your subnets.
+ **Local Zone subnet** — A subnet that you create in a Local Zone. You can deploy supported Amazon resources in your Local Zone subnets.
+ **Group Long Name** — The Local Zone group name.
+ **Network Border Group** — A unique group from which Amazon advertises public IP addresses. A pool of public IP addresses can be explicitly allocated for use in a network border group. Once provisioned, IP addresses cannot move between network border groups.

  When creating a subnet, you will find the network border group for the Local Zones in the **Availability Zone** drop-down list.

## Considerations
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+ Local Zone subnets follow the same routing rules as Availability Zone subnets, including the use of route tables, security groups, and network ACLs.
+ You cannot create VPC endpoints inside Local Zone subnets.
+ The Amazon Site-to-Site VPN is not available in Local Zones. Use a software-based VPN to establish a site-to-site VPN connection into a Local Zone.