---
title: Subnet
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > DDSQL Reference > Data Directory > Subnet
---
# Subnet
This table represents the Subnet resource from Amazon Web Services.
```
aws.subnet
```
## Fields
| Title | ID | Type | Data Type | Description |
| ---------------------------------- | ---- | ---------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- |
| _key | core | string |
| account_id | core | string |
| assign_ipv6_address_on_creation | core | bool | Indicates whether a network interface created in this subnet (including a network interface created by RunInstances) receives an IPv6 address. |
| availability_zone | core | string | The Availability Zone of the subnet. |
| availability_zone_id | core | string | The AZ ID of the subnet. |
| available_ip_address_count | core | int64 | The number of unused private IPv4 addresses in the subnet. The IPv4 addresses for any stopped instances are considered unavailable. |
| block_public_access_states | core | json | The state of VPC Block Public Access (BPA). |
| cidr_block | core | string | The IPv4 CIDR block assigned to the subnet. |
| customer_owned_ipv4_pool | core | string | The customer-owned IPv4 address pool associated with the subnet. |
| default_for_az | core | bool | Indicates whether this is the default subnet for the Availability Zone. |
| enable_dns64 | core | bool | Indicates whether DNS queries made to the Amazon-provided DNS Resolver in this subnet should return synthetic IPv6 addresses for IPv4-only destinations. |
| enable_lni_at_device_index | core | int64 | Indicates the device position for local network interfaces in this subnet. For example, 1 indicates local network interfaces in this subnet are the secondary network interface (eth1). |
| ipv6_cidr_block_association_set | core | json | Information about the IPv6 CIDR blocks associated with the subnet. |
| ipv6_native | core | bool | Indicates whether this is an IPv6 only subnet. |
| map_customer_owned_ip_on_launch | core | bool | Indicates whether a network interface created in this subnet (including a network interface created by RunInstances) receives a customer-owned IPv4 address. |
| map_public_ip_on_launch | core | bool | Indicates whether instances launched in this subnet receive a public IPv4 address. Amazon Web Services charges for all public IPv4 addresses, including public IPv4 addresses associated with running instances and Elastic IP addresses. For more information, see the Public IPv4 Address tab on the Amazon VPC pricing page. |
| outpost_arn | core | string | The Amazon Resource Name (ARN) of the Outpost. |
| owner_id | core | string | The ID of the Amazon Web Services account that owns the subnet. |
| private_dns_name_options_on_launch | core | json | The type of hostnames to assign to instances in the subnet at launch. An instance hostname is based on the IPv4 address or ID of the instance. |
| state | core | string | The current state of the subnet. |
| subnet_arn | core | string | The Amazon Resource Name (ARN) of the subnet. |
| subnet_id | core | string | The ID of the subnet. |
| tags | core | hstore_csv |
| vpc_id | core | string | The ID of the VPC the subnet is in. |