IP Address

Here are the IP addresses list for each region you can whitelist based on in which location you've configured your synthetic tests

184.73.132.14 US East (N. Virginia) us-east-1
18.144.107.2 US West (N. California) us-west-1

16.162.16.221 Asia Pacific (Hong Kong) ap-east-1
35.154.132.98 Asia Pacific (Mumbai) ap-south-1
43.201.168.121 Asia Pacific (Seoul) ap-northeast-2
52.76.158.43 Asia Pacific (Singapore) ap-southeast-1
13.210.225.158 Asia Pacific (Sydney) ap-southeast-2
54.249.157.179 Asia Pacific (Tokyo) ap-northeast-1

52.57.15.39 Europe (Frankfurt) eu-central-1
3.11.236.173 Europe (London) eu-west-2
52.47.67.164 Europe (Paris) eu-west-3

3.97.34.227 Canada (Central) ca-central-1
54.207.185.173 South America (São Paulo) sa-east-1
15.184.102.232 Middle East (Bahrain) me-south-1
13.244.83.119 Africa (Cape Town) af-south-1