Uptime.com incident
Decommissioning of Probe Server IP Addresses - 8 July 2026
Resolved after 6 days 23 hours, on July 2, 2026.
As part of our ongoing infrastructure improvements, we are replacing probe servers across several regions. As a result, the following IP addresses will be retired and removed from the Uptime.com IP monitoring range list: **Australia-Sydney:** - `172.105.184.135` - `45.77.233.193` - `2400:8907::f03c:92ff:fef4:b360` - `2401:c080:1800:409e:5400:04ff:fedb:eada` **Bulgaria-Sofia:** - `37.252.247.38` - `2a00:11c0:2b:777::4` **South Africa-Johannesburg:** - `139.84.238.199` - `139.84.237.51` - `2a05:f480:3000:2b9d:5400:04ff:fedf:d612` - `2a05:f480:3000:28af:5400:04ff:fedb:eac3` **Japan-Tokyo:** - `167.179.70.103` - `172.104.78.192` - `45.76.202.148` - `2001:19f0:7001:ecc:5400:04ff:fe5e:b3cc` - `2400:8902::f03c:91ff:fef2:13b9` - `2001:19f0:7002:0804:5400:04ff:feff:c581` ### **Action Required:** If you have configured firewall ACLs or allowlists that include any of the IP addresses above, please remove or update those rules starting **8 July 2026** to prevent unintended access policy conflicts. No action is required if you do not explicitly allowlist Uptime.com probe server IPs in your infrastructure. If you have any questions or need assistance, please don't hesitate to contact our support team.
Update timeline
- monitoring Jul 02, 2026, 12:00 AM UTC
As part of our ongoing infrastructure improvements, we are replacing probe servers across several regions. As a result, the following IP addresses will be retired and removed from the Uptime.com IP monitoring range list: **Australia-Sydney:** - `172.105.184.135` - `45.77.233.193` - `2400:8907::f03c:92ff:fef4:b360` - `2401:c080:1800:409e:5400:04ff:fedb:eada` **Bulgaria-Sofia:** - `37.252.247.38` - `2a00:11c0:2b:777::4` **South Africa-Johannesburg:** - `139.84.238.199` - `139.84.237.51` - `2a05:f480:3000:2b9d:5400:04ff:fedf:d612` - `2a05:f480:3000:28af:5400:04ff:fedb:eac3` **Japan-Tokyo:** - `167.179.70.103` - `172.104.78.192` - `45.76.202.148` - `2001:19f0:7001:ecc:5400:04ff:fe5e:b3cc` - `2400:8902::f03c:91ff:fef2:13b9` - `2001:19f0:7002:0804:5400:04ff:feff:c581` ### **Action Required:** If you have configured firewall ACLs or allowlists that include any of the IP addresses above, please remove or update those rules starting **8 July 2026** to prevent unintended access policy conflicts. No action is required if you do not explicitly allowlist Uptime.com probe server IPs in your infrastructure. If you have any questions or need assistance, please don't hesitate to contact our support team.
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