Labs · status history
Customer.io status history: reported incidents As of 26 Oct 2026, Customer.io's status page reported 6 incidents in the last 90 days; the latest began on Sep 19, 2026.
Checked 1 minute ago. · Customer.io's own status page · Customer.io on Third Party Index
Jul 29: no incident reported Jul 30: no incident reported Jul 31: 1 incident (1 major) Aug 1: no incident reported Aug 2: no incident reported Aug 3: 1 incident (1 minor) Aug 4: no incident reported Aug 5: 1 incident (1 no impact stated) Aug 6: no incident reported Aug 7: no incident reported Aug 8: no incident reported Aug 9: no incident reported Aug 10: no incident reported Aug 11: no incident reported Aug 12: no incident reported Aug 13: no incident reported Aug 14: no incident reported Aug 15: no incident reported Aug 16: no incident reported Aug 17: no incident reported Aug 18: no incident reported Aug 19: no incident reported Aug 20: no incident reported Aug 21: no incident reported Aug 22: no incident reported Aug 23: no incident reported Aug 24: no incident reported Aug 25: no incident reported Aug 26: no incident reported Aug 27: no incident reported Aug 28: no incident reported Aug 29: no incident reported Aug 30: no incident reported Aug 31: no incident reported Sep 1: no incident reported Sep 2: no incident reported Sep 3: 1 incident (1 minor) Sep 4: 1 incident (1 no impact stated) Sep 5: no incident reported Sep 6: no incident reported Sep 7: no incident reported Sep 8: no incident reported Sep 9: no incident reported Sep 10: no incident reported Sep 11: no incident reported Sep 12: no incident reported Sep 13: no incident reported Sep 14: no incident reported Sep 15: no incident reported Sep 16: no incident reported Sep 17: no incident reported Sep 18: no incident reported Sep 19: 1 incident (1 minor) Sep 20: no incident reported Sep 21: no incident reported Sep 22: no incident reported Sep 23: no incident reported Sep 24: no incident reported Sep 25: no incident reported Sep 26: no incident reported Sep 27: no incident reported Sep 28: no incident reported Sep 29: no incident reported Sep 30: no incident reported Oct 1: no incident reported Oct 2: no incident reported Oct 3: no incident reported Oct 4: no incident reported Oct 5: no incident reported Oct 6: no incident reported Oct 7: no incident reported Oct 8: no incident reported Oct 9: no incident reported Oct 10: no incident reported Oct 11: no incident reported Oct 12: no incident reported Oct 13: no incident reported Oct 14: no incident reported Oct 15: no incident reported Oct 16: no incident reported Oct 17: no incident reported Oct 18: no incident reported Oct 19: no incident reported Oct 20: no incident reported Oct 21: no incident reported Oct 22: no incident reported Oct 23: no incident reported Oct 24: no incident reported Oct 25: no incident reported Oct 26: no incident reported 90 days ago today
6 incidents in 90 days1 major or critical27 min typical time to resolve15 min longest majorIncidents per month 0 5 10 Nov 2025: 6 incidents (6 minor) · typical time to resolve 1 h 8 min Dec 2025: 4 incidents (4 minor) · typical time to resolve 1 h 31 min Jan 2026: 3 incidents (1 minor, 2 no impact stated) · typical time to resolve 30 min Feb 2026: 3 incidents (2 minor, 1 no impact stated) · typical time to resolve 20 min Mar 2026: 3 incidents (1 minor, 2 no impact stated) · typical time to resolve 25 min Apr 2026: 7 incidents (2 major, 2 minor, 3 no impact stated) · typical time to resolve 10 min May 2026: 3 incidents (3 minor) · typical time to resolve 42 min Jun 2026: 9 incidents (2 major, 6 minor, 1 no impact stated) · typical time to resolve 1 h 5 min Jul 2026: 8 incidents (2 major, 5 minor, 1 no impact stated) · typical time to resolve 1 h 22 min Aug 2026: 2 incidents (1 minor, 1 no impact stated) · typical time to resolve 33 min Sep 2026: 3 incidents (2 minor, 1 no impact stated) · typical time to resolve 27 min Oct 2026: 0 incidents Nov 2025 Dec Jan 2026 Feb Mar Apr May Jun Jul Aug Sep Oct critical major minor no impact stated
Components affected Component Incidents Bar Management Interface 3 Message Sending 2 Data Processing 1
As Customer.io's status page reports its own incidents (scheduled maintenance left out), read every few hours since Oct 1, 2025 (evidence )
Every incident reported in the last 90 days 250 reported incidents in the last 30 days, by 6 of the vendors Customer.io lists as subprocessors.
A subprocessor list names a company, not the service an incident touched. This does not show that Customer.io was involved.
Date Company Incident Impact Lasted Oct 26, 2026 SMS Delivery Delays from Twilio to Cellcom Israel minor ongoing Oct 25, 2026 SMS Delivery Delays from Twilio to Telcel Mexico minor 4 h 17 min Oct 25, 2026 SMS Delivery Delays and Failures from Twilio to Claro Brazil and Puerto Rico minor ongoing Oct 25, 2026 SMS Delivery Delays from Twilio to Telia Sweden minor 12 h 36 min Oct 25, 2026 SMS Delivery Delays from Twilio to Airtel Nigeria minor 9 h 51 min Oct 25, 2026 Elevated errors for Claude Fable 5.1 major 32 min Oct 25, 2026 Elevated errors for Claude Sonnet 5.5 and other models major 1 h 39 min Oct 24, 2026 Azure Marketplace SendGrid Customers Experiencing Account Management Issues minor 49 min Oct 24, 2026 Silent Network Authentication (SNA) Missing Redirects and Gateway API (Lookup API) Failure Increase in Netherlands minor 20 h 54 min Oct 24, 2026 MMS Delivery Delays from Twilio to C-Spire United States minor ongoing Oct 24, 2026 Silent Network Authentication (SNA) Missing Redirects on Vodafone in United Kingdom minor 18 h 39 min Oct 24, 2026 Voice Call Failures and Post Dial Delay From a Subset of Twilio Phone Numbers to United States minor 28 h 55 min Oct 24, 2026 SMS Delivery Delays from Twilio to WOM Colombia minor 5 h 42 min Oct 24, 2026 Elevated errors for Claude Fable 5 and Claude Fable 5.1 major 36 min Oct 24, 2026 SMS Delivery Delays from Twilio to Claro Costa Rica minor ongoing Oct 24, 2026 Elevated errors for Claude Opus 5.5 major 5 min Oct 23, 2026 Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5 critical 33 min Oct 23, 2026 Degraded experience with ChatGPT app connections using CIMD minor 50 min Oct 23, 2026 Voice Call Failures from Network Subscribers to Twilio Costa Rica Landline Numbers minor 5 h 16 min Oct 23, 2026 Help Center Chat Support Degraded no impact stated 32 min Oct 23, 2026 SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Claro Brazil minor 9 h 56 min Oct 23, 2026 SMS Delivery Failures from Twilio to Multiple Networks in South Africa minor 10 h 9 min Oct 23, 2026 SMS Delivery Delays from a Subset of Twilio Phone Numbers to Telefonica Nicaragua minor 19 h 16 min Oct 23, 2026 Global (Europe)- Conversations Slowness and Errors minor 53 min Oct 23, 2026 Voice Call Post Dial Delay from Twilio Phone Numbers to Chile minor 2 days
And 225 more. All of them: CSV · Who is around them .
From Customer.io's own status page, read every 5 minutes for this Labs page. We record the incidents a status page reports; we don't measure services ourselves.