Branch
Branch documents static /32 addresses used to deliver postbacks and webhooks. Allowlist these IPs when your receivers sit behind a firewall. Branch periodically expands the list — check their allowlist-expand notices before old addresses are retired.
Autonomous systems
Webhook egress network
Third-party hosting & clouds
Amazon Web Services
AS16509
Published Branch webhook/postback /32s are AWS public IPs. Prefer the Branch docs allowlist over broad AWS prefixes.
Published ranges
Branch postback & webhook IPs
DocumentationOfficial /32 allowlist for Branch postback and webhook deliveries (docs table; not a machine-readable feed).
Documentation
Published prefixes
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52.43.119.253/32 -
100.21.145.61/32 -
35.160.5.60/32 -
35.163.128.27/32 -
54.241.169.87/32 -
44.229.177.148/32 -
35.167.148.222/32 -
44.231.103.124/32 -
44.237.121.167/32 -
44.238.95.201/32 -
52.52.236.153/32 -
44.247.175.42/32 -
44.247.58.38/32 -
52.33.75.0/32 -
52.34.127.49/32 -
54.177.16.103/32 -
54.213.17.93/32 -
184.169.196.16/32 -
35.161.135.86/32 -
44.230.175.24/32 -
52.27.172.117/32 -
35.160.133.187/32