PayPal
PayPal documents CIDR ranges for API, IPN, and SFTP endpoints. They recommend using DNS resolution with default TTL values rather than hard-coding IPs, but publish ranges for firewall allowlists.
Autonomous systems
AS17012
Published ranges
PayPal server endpoint IP ranges
DocumentationOfficial CIDR ranges covering live and sandbox API, IPN (ipnpb.paypal.com), SFTP, and Payflow endpoints. PayPal can add or change addresses at any time.
Published prefixes
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64.4.240.0/21 -
64.4.248.0/22 -
66.211.168.0/22 -
91.243.72.0/23 -
173.0.80.0/20 -
185.177.52.0/22 -
192.160.215.0/24 -
198.54.216.0/23