# Amazon Simple Notification Service endpoints and quotas
<a name="sns"></a>

To connect programmatically to an AWS service, you use an endpoint. AWS services offer the following endpoint types in some or all of the AWS Regions that the service supports: IPv4 endpoints, IPv6 endpoints, dual-stack endpoints, and FIPS endpoints. Some services provide global endpoints. For more information, see [AWS service endpoints](rande.md).

Service quotas, also referred to as limits, are the maximum number of service resources or operations for your AWS account. For more information, see [AWS service quotas](aws_service_limits.md).

The following are the service endpoints and service quotas for this service.

## Service endpoints
<a name="sns_region"></a>

Service endpoints allow you to connect to other AWS services. The following endpoints support both standard and FIFO topics.


| Region Name | Region | Endpoint | Protocol | 
| --- | --- | --- | --- | 
| US East (Ohio) | us-east-2 |  sns.us-east-2.amazonaws.com <br /> sns-fips.us-east-2.api.aws <br /> sns.us-east-2.api.aws  | HTTP and HTTPS<br />HTTPS<br />HTTP and HTTPS | 
| US East (N. Virginia) | us-east-1 |  sns.us-east-1.amazonaws.com <br /> sns-fips.us-east-1.api.aws <br /> sns.us-east-1.api.aws  | HTTP and HTTPS<br />HTTPS<br />HTTP and HTTPS | 
| US West (N. California) | us-west-1 |  sns.us-west-1.amazonaws.com <br /> sns-fips.us-west-1.api.aws <br /> sns.us-west-1.api.aws  | HTTP and HTTPS<br />HTTPS<br />HTTP and HTTPS | 
| US West (Oregon) | us-west-2 |  sns.us-west-2.amazonaws.com <br /> sns-fips.us-west-2.api.aws <br /> sns.us-west-2.api.aws  | HTTP and HTTPS<br />HTTPS<br />HTTP and HTTPS | 
| Africa (Cape Town) | af-south-1 |  sns.af-south-1.amazonaws.com <br /> sns.af-south-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Hong Kong) | ap-east-1 |  sns.ap-east-1.amazonaws.com <br /> sns.ap-east-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Hyderabad) | ap-south-2 |  sns.ap-south-2.amazonaws.com <br /> sns.ap-south-2.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Jakarta) | ap-southeast-3 |  sns.ap-southeast-3.amazonaws.com <br /> sns.ap-southeast-3.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Malaysia) | ap-southeast-5 |  sns.ap-southeast-5.amazonaws.com <br /> sns.ap-southeast-5.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Melbourne) | ap-southeast-4 |  sns.ap-southeast-4.amazonaws.com <br /> sns.ap-southeast-4.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Mumbai) | ap-south-1 |  sns.ap-south-1.amazonaws.com <br /> sns.ap-south-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (New Zealand) | ap-southeast-6 |  sns.ap-southeast-6.amazonaws.com <br /> sns.ap-southeast-6.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Osaka) | ap-northeast-3 |  sns.ap-northeast-3.amazonaws.com <br /> sns.ap-northeast-3.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Seoul) | ap-northeast-2 |  sns.ap-northeast-2.amazonaws.com <br /> sns.ap-northeast-2.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Singapore) | ap-southeast-1 |  sns.ap-southeast-1.amazonaws.com <br /> sns.ap-southeast-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Sydney) | ap-southeast-2 |  sns.ap-southeast-2.amazonaws.com <br /> sns.ap-southeast-2.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Taipei) | ap-east-2 |  sns.ap-east-2.amazonaws.com <br /> sns.ap-east-2.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Thailand) | ap-southeast-7 |  sns.ap-southeast-7.amazonaws.com <br /> sns.ap-southeast-7.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Asia Pacific (Tokyo) | ap-northeast-1 |  sns.ap-northeast-1.amazonaws.com <br /> sns.ap-northeast-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Canada (Central) | ca-central-1 |  sns.ca-central-1.amazonaws.com <br /> sns-fips.ca-central-1.api.aws <br /> sns.ca-central-1.api.aws  | HTTP and HTTPS<br />HTTPS<br />HTTP and HTTPS | 
| Canada West (Calgary) | ca-west-1 |  sns.ca-west-1.amazonaws.com <br /> sns-fips.ca-west-1.api.aws <br /> sns.ca-west-1.api.aws  | HTTP and HTTPS<br />HTTPS<br />HTTP and HTTPS | 
| Europe (Frankfurt) | eu-central-1 |  sns.eu-central-1.amazonaws.com <br /> sns.eu-central-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Europe (Ireland) | eu-west-1 |  sns.eu-west-1.amazonaws.com <br /> sns.eu-west-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Europe (London) | eu-west-2 |  sns.eu-west-2.amazonaws.com <br /> sns.eu-west-2.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Europe (Milan) | eu-south-1 |  sns.eu-south-1.amazonaws.com <br /> sns.eu-south-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Europe (Paris) | eu-west-3 |  sns.eu-west-3.amazonaws.com <br /> sns.eu-west-3.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Europe (Spain) | eu-south-2 |  sns.eu-south-2.amazonaws.com <br /> sns.eu-south-2.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Europe (Stockholm) | eu-north-1 |  sns.eu-north-1.amazonaws.com <br /> sns.eu-north-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Europe (Zurich) | eu-central-2 |  sns.eu-central-2.amazonaws.com <br /> sns.eu-central-2.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Israel (Tel Aviv) | il-central-1 |  sns.il-central-1.amazonaws.com <br /> sns.il-central-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Mexico (Central) | mx-central-1 |  sns.mx-central-1.amazonaws.com <br /> sns.mx-central-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Middle East (Bahrain) | me-south-1 |  sns.me-south-1.amazonaws.com <br /> sns.me-south-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| Middle East (UAE) | me-central-1 |  sns.me-central-1.amazonaws.com <br /> sns.me-central-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
| South America (São Paulo) | sa-east-1 |  sns.sa-east-1.amazonaws.com <br /> sns.sa-east-1.api.aws  | HTTP and HTTPS<br />HTTP and HTTPS | 
|  AWS GovCloud (US-East) | us-gov-east-1 |  sns.us-gov-east-1.amazonaws.com <br /> sns.us-gov-east-1.api.aws  | HTTPS<br />HTTPS | 
|  AWS GovCloud (US-West) | us-gov-west-1 |  sns.us-gov-west-1.amazonaws.com <br /> sns.us-gov-west-1.api.aws  | HTTPS<br />HTTPS | 

## Service quotas
<a name="limits_sns"></a>

The following quotas determine how many Amazon SNS resources you can create in your AWS account, and they determine the rate at which you can issue Amazon SNS API requests.

### Amazon SNS resource
<a name="limits_sns_resource"></a>

To request an increase, submit an [SNS quota increase request](https://console.aws.amazon.com/servicequotas/home/services/sns/quotas).


| Resource | Default | 
| --- | --- | 
| Topics |  [See the AWS documentation website for more details](http://docs.aws.amazon.com/general/latest/gr/sns.html)  | 
| Subscriptions |  [See the AWS documentation website for more details](http://docs.aws.amazon.com/general/latest/gr/sns.html) | 
| Pending subscriptions | 5,000 per account | 
| Account spend threshold for SMS | 1.00 USD per account | 
| Delivery rate for promotional SMS messages | 20 messages per second | 
| Delivery rate for transactional SMS messages | 20 messages per second | 
| Delivery rate for email messages | 10 messages per second per email or email-json subscription. This is a hard limit and can't be increased. | 
| Maximum number of messages in PublishBatchRequest | 10 [PublishBatchRequestEntries](https://docs.aws.amazon.com/sns/latest/api/API_PublishBatch.html) | 
| Subscription filter policies |  [See the AWS documentation website for more details](http://docs.aws.amazon.com/general/latest/gr/sns.html)  | 
| Message header |  The maximum header size is 16,384 bytes (16 KiB). | 
| Message size |  The maximum message size is 262,144 bytes (256 KiB). To publish messages larger than 256 KiB, you can check the [Amazon SNS Extended Client Libraries](https://docs.aws.amazon.com/sns/latest/dg/large-message-payloads.html). The maximum payload size is 2 GB.  | 

### Amazon SNS API throttling
<a name="limits_sns_api_throttles"></a>

The following quotas throttle the rate at which you can issue Amazon SNS API requests.

#### Hard
<a name="limits_sns_api_throttles_hard"></a>

The following quotas cannot be increased.


| API | Transactions per second | 
| --- | --- | 
| AddPermission | 10 | 
| CheckIfPhoneNumberIsOptedOut | 50 | 
| CreateSMSSandboxPhoneNumber | 1 | 
| DeleteSMSSandboxPhoneNumber | 1 | 
| GetSMSAttributes | 20 | 
| GetSMSSandboxAccountStatus | 10 | 
| ListEndpointsByPlatformApplication | 30 | 
| ListOriginationNumbers | 1 | 
| ListPhoneNumbersOptedOut | 10 | 
| ListPlatformApplications | 15 | 
| ListSMSSandboxPhoneNumbers | 1 | 
| ListSubscriptions | 30 | 
| ListSubscriptionsByTopic | 30 | 
| ListTagsForResource | 10 | 
| ListTopics | 30 | 
| OptInPhoneNumber | 20 | 
| RemovePermission | 10 | 
| SetSMSAttributes | 1 | 
| Subscribe | 100 | 
| TagResource | 10 | 
| Unsubscribe | 100 | 
| UntagResource | 10 | 
| VerifySMSSandboxPhoneNumber | 1 | 

#### Soft
<a name="limits_sns_api_throttles_soft"></a>

The following quotas vary by AWS Region. The messages per second quota is based on the number of messages published to an Amazon SNS region, per account, combining [https://docs.aws.amazon.com/sns/latest/api/API_Publish.html](https://docs.aws.amazon.com/sns/latest/api/API_Publish.html) and [https://docs.aws.amazon.com/sns/latest/api/API_PublishBatch.html](https://docs.aws.amazon.com/sns/latest/api/API_PublishBatch.html) API requests including both standard and FIFO topic types. To request a soft limit increase, submit an [SNS quota increase request](https://console.aws.amazon.com/servicequotas/home/services/sns/quotas).

For example, if your regional quota is 30,000 messages per second, per account, there are a few ways this quota can be reached:
+ Using the `Publish` action at a rate of 30,000 API requests per second to publish 30,000 messages (one message per API request).
+ Using the `PublishBatch` action at a rate of 3,000 API requests per second to publish 30,000 messages (10 messages per batch API request).
+ Using the `Publish` action at a rate of 10,000 API requests per second to publish 10,000 messages (one message per API request) and the `PublishBatch` action at a rate of 2,000 API requests per second to publish 20,000 messages (10 messages per batch API request) for a total of 30,000 messages published per second.


**Publish API throttling per account**  

| AWS Regions | Standard topics | FIFO topics\* | 
| --- | --- | --- | 
| US East (N. Virginia) Region | 30,000 messages per second | 30,000 messages per second | 
| US West (Oregon) Region<br />Europe (Ireland) Region | 9,000 messages per second | 9,000 messages per second | 
| US East (Ohio) Region<br />US West (N. California) Region<br />Asia Pacific (Mumbai) Region<br />Asia Pacific (Seoul) Region<br />Asia Pacific (Singapore) Region<br />Asia Pacific (Sydney) Region<br />Asia Pacific (Tokyo) Region<br />Europe (Frankfurt) Region | 1,500 messages per second | 3,000 messages per second | 
| All other supported Regions | 300 messages per second | 3,000 messages per second | 

\*Amazon SNS FIFO per topic limits exceed the default per account limit when `FifoThroughputScope` is set to `MessageGroup`. Amazon SNS FIFO topics have a maximum per message group limit of 300 messages per second, and Amazon SNS FIFO topics per topic throughput defaults to a limit of 3,000 messages per second or 20MB per second, which ever comes first, when `FifoThroughputScope` is set to `Topic`. Amazon SNS FIFO topics can experience reduced throughput within a message group for cross Regional deliveries due to the added latency between Regions, and the need to maintain the strict order of messages.


**Other API throttling**  


- ** ConfirmSubscription CreatePlatformApplication CreatePlatformEndpoint CreateTopic DeleteEndpoint DeletePlatformApplication DeleteTopic GetEndpointAttributes GetDataProtectionPolicy GetPlatformApplicationAttributes GetSubscriptionAttributes GetTopicAttributes SetEndpointAttributes SetPlatformApplicationAttributes SetSubscriptionAttributes SetTopicAttributes **
  - **AWS Regions:** US East (N. Virginia) Region / **Transactions per second:** 3,000
  - **AWS Regions:** US West (Oregon) Region<br />Europe (Ireland) Region / **Transactions per second:** 900
  - **AWS Regions:** US East (Ohio) Region<br />US West (N. California) Region<br />Asia Pacific (Mumbai) Region<br />Asia Pacific (Seoul) Region<br />Asia Pacific (Singapore) Region<br />Asia Pacific (Sydney) Region<br />Asia Pacific (Tokyo) Region<br />Europe (Frankfurt) Region / **Transactions per second:** 150
  - **AWS Regions:** Africa (Cape Town) Region<br />Asia Pacific (Hong Kong) Region<br />Asia Pacific (Hyderabad)<br />Asia Pacific (Osaka) Region<br />Canada (Central) Region<br />China (Beijing) Region<br />China (Ningxia) Region<br />Europe (London) Region<br />Europe (Milan) Region<br />Europe (Paris) Region<br />Europe (Spain)<br />Europe (Stockholm) Region<br />Israel (Tel Aviv) Region<br />Middle East (Bahrain) Region<br />South America (São Paulo) Region / **Transactions per second:** 30

- **PutDataProtectionPolicy**
  - **AWS Regions:** All Commercial Regions
  - **Transactions per second:** 1




**Message Archiving and Replay**  


- ** ArchivePolicy **
  - **AWS Regions:** All Commercial Regions / **Standard topics:** N/A / **FIFO topics:** Yes
  - **AWS Regions:** AWS GovCloud (US) Regions / **Standard topics:** N/A / **FIFO topics:** Yes

- ** ReplayPolicy **
  - **AWS Regions:** All Commercial Regions / **Standard topics:** N/A / **FIFO topics:** Yes
  - **AWS Regions:** AWS GovCloud (US) Regions / **Standard topics:** N/A / **FIFO topics:** Yes