Retell AI

retellai.com

Retell AI declares 34 subprocessors in its subprocessor list, which we last checked on Nov 11, 2026 (evidence). They include Amazon Web Services, Google Cloud and OpenAI. No published changes since we first read it on Sep 22, 2026. 10 tracked vendors name Retell AI as a subprocessor, including Gainsight Software, Cal.com and Capacity.

Subprocessors CSV · Atom DORA draft CSV what's this? · 

34 third parties.

NamePurposeLocationListed since
Amazon Web Services Cloud Storage Provider
Anthropic AIAI Model Provider
AssemblyAI AISpeech-to-Text Services
Auth0 User Authentication and Identity Management
Azure Cloud Service, OpenAI Model Service Provider, STT
Cartesia Text-to-Speech Model Provider
Clickhouse Cloud Service Provider
Cloudflare Web Filtering
Deepgram AISpeech-to-Text Services
DocuSign E-signature Platform
ElevenLabs AIText-to-Speech Model Provider
Ergo Sales & Customer Relationship Management
Fireworks AI AILLM Provider/Hosting
Fish Audio Text-to-Speech Model Provider
GitHub Version Control
Google Cloud AI Model Provider
Google Workspace Email, File Storage
Hubspot Customer Relationship Management
Ironclad Contract Lifecycle ManagementUS
Kandji Endpoint Device Management
Keywords AI LLM Logging and Tracing
Lark Internal Communication and Collaboration
MiniMax Text-to-Speech Model ProviderUS
Mixpanel Product Analytics
OpenAI AIAI Model Provider
Pylon Customer Support
Qdrant Cloud Knowledge Base Hosting
Sentry Logging and Monitoring
Slack Customer Support & Communication
Soniox Speech-to-Text Services
Stripe Payment Gateway Services
Twilio Multi-Factor Authentication and Telephony features
Vanta Security and Compliance
Vercel Cloud Service Provider

Subprocessor of (10)CSV · Atom

10 companies
  • Cal.com cal.com
  • CallHippo callhippo.com AI Agent software
  • Capacity capacity.com Conversational voice AI; Enables AI-powered voice agent capabilities and real-time conversational AI.
  • Gainsight Software gainsight.com Cloud-based AI voice agent development and deployment platform
  • Leena AI leena.ai Retell AI is a voice AI agent platform. We use Retell AI to power voice calls for customers who use our voice features. Retell AI's platform allows us to build, deploy, and monitor AI voice agents to handle customer interactions over the phone.
  • Letter AI letter.ai Voice AI processing; no customer data is used to train models
  • Lippy AI lippy.ai Voice AI platform and conversational AI orchestration services
  • ModernLoop modernloop.com Voice AI Platform. Applicable to ModernLoop's AI products only.
  • Regal regal.ai
  • Trellis Tech trellistech.com Real-time voice AI agents for inbound and outbound phone calls

ComplianceCSV · Atom

Certified
Says it complies with

Certifications as Retell AI's trust center lists them; reports are usually shared on request (evidence)

Service statusCSV · Atom

Aug 14: no incident reportedAug 15: no incident reportedAug 16: no incident reportedAug 17: no incident reportedAug 18: no incident reportedAug 19: no incident reportedAug 20: no incident reportedAug 21: no incident reportedAug 22: no incident reportedAug 23: no incident reportedAug 24: no incident reportedAug 25: no incident reportedAug 26: no incident reportedAug 27: no incident reportedAug 28: no incident reportedAug 29: no incident reportedAug 30: no incident reportedAug 31: no incident reportedSep 1: no incident reportedSep 2: no incident reportedSep 3: no incident reportedSep 4: no incident reportedSep 5: 1 incident (1 major)Sep 6: no incident reportedSep 7: no incident reportedSep 8: no incident reportedSep 9: no incident reportedSep 10: no incident reportedSep 11: no incident reportedSep 12: no incident reportedSep 13: no incident reportedSep 14: no incident reportedSep 15: no incident reportedSep 16: no incident reportedSep 17: 1 incident (1 major)Sep 18: no incident reportedSep 19: no incident reportedSep 20: no incident reportedSep 21: no incident reportedSep 22: no incident reportedSep 23: no incident reportedSep 24: no incident reportedSep 25: no incident reportedSep 26: no incident reportedSep 27: no incident reportedSep 28: no incident reportedSep 29: no incident reportedSep 30: no incident reportedOct 1: no incident reportedOct 2: no incident reportedOct 3: no incident reportedOct 4: no incident reportedOct 5: no incident reportedOct 6: no incident reportedOct 7: no incident reportedOct 8: no incident reportedOct 9: no incident reportedOct 10: no incident reportedOct 11: no incident reportedOct 12: no incident reportedOct 13: no incident reportedOct 14: no incident reportedOct 15: no incident reportedOct 16: no incident reportedOct 17: no incident reportedOct 18: no incident reportedOct 19: no incident reportedOct 20: no incident reportedOct 21: no incident reportedOct 22: no incident reportedOct 23: no incident reportedOct 24: no incident reportedOct 25: 1 incident (1 no impact stated)Oct 26: no incident reportedOct 27: no incident reportedOct 28: no incident reportedOct 29: no incident reportedOct 30: no incident reportedOct 31: no incident reportedNov 1: no incident reportedNov 2: no incident reportedNov 3: no incident reportedNov 4: no incident reportedNov 5: no incident reportedNov 6: no incident reportedNov 7: no incident reportedNov 8: no incident reportedNov 9: no incident reportedNov 10: no incident reportedNov 11: no incident reported

90 days agotoday

  • 3 incidents in 90 days
  • 2 major or critical
  • 1 h 8 min typical time to resolve
  • 1 h 8 min longest major
BeganIncidentImpactLasted
Speech-to-speech calls failing due to a provider permission issueno impact stated—
Call service disruptionmajor19 min
Web Calls and Phone Calls Disruptionmajor1 h 8 min
Some inbound calls failing to connectminor26 min
Inbound calling not connectingmajor1 h 41 min
Batch calls failingno impact stated49 min
TTS provider 11labs v3 model is downno impact stated1 h 8 min
partial outage affecting incoming and ongoing call connectionsmajor1 h 33 min

Incidents per month

0 2 4 Dec 2025: 3 incidents (2 major, 1 no impact stated) · typical time to resolve 44 min Jan 2026: 3 incidents (2 major, 1 minor) · typical time to resolve 1 h 56 min Feb 2026: 2 incidents (1 major, 1 minor) · typical time to resolve 2 h 17 min Mar 2026: 4 incidents (2 minor, 2 no impact stated) · typical time to resolve 40 min Apr 2026: 1 incident (1 minor) · typical time to resolve 28 min May 2026: 3 incidents (2 major, 1 minor) · typical time to resolve 1 h 29 min Jun 2026: 3 incidents (1 major, 2 minor) · typical time to resolve 2 h 3 min Jul 2026: 3 incidents (1 major, 2 no impact stated) · typical time to resolve 1 h 8 min Aug 2026: 1 incident (1 minor) · typical time to resolve 26 min Sep 2026: 2 incidents (2 major) · typical time to resolve 1 h 8 min Oct 2026: 1 incident (1 no impact stated) Nov 2026: 0 incidents Dec 2025Jan 2026Feb Mar Apr May Jun Jul Aug Sep Oct Nov

critical major minor no impact stated

Components affected

ComponentIncidents
Phone Call2
Web Call2

As Retell AI's status page reports its own incidents (scheduled maintenance left out), read every few hours since (evidence)

Incidents reported by Retell AI's subprocessorsCSV · Atom

499 reported incidents in the last 30 days, by 20 of the vendors Retell AI lists as subprocessors.

A subprocessor list names a company, not the service an incident touched. This does not show that Retell AI was involved.

DateCompanyIncidentImpactLasted
OpenAIUnable to start new Workspace Agent runs criticalongoing
GitHubImpact across multiple GitHub products including Actions, Pages, and Copilot products. critical33 min
OpenAIElevated errors affecting logins, sign-ups, and ChatGPT features minor8 min
GitHubIncident with Webhooks minor4 min
SentryUS issues feed throwing intermittent errors minor51 min
ClickHouseProvisioning and scaling operations may take longer in AWS ap-northeast-1 Tokyo minorongoing
PylonSlack Integration Connection Issues major3 h 13 min
TwilioSMS Delivery Failures from Twilio to Turkcell Turkey minor3 h 54 min
FireworksService Degradation for GLM 5.3 minor24 min
SentryAccount emails not being delivered major42 min
FireworksService Degradation for DeepSeek V4.1 Flash 1017 minor1 h 25 min
TwilioRetroactive Incident Impacting Twilio Usage APIs no impact stated1 min
ElevenLabsScribe v3 Live outage major1 h 53 min
AnthropicElevated errors on Fable 52 and Mythos 52 no impact stated1 min
TwilioIssue resolved minor1 h 43 min
SentryEU region replay ingestion latency minor48 min
VercelElevated Sandbox and Blob request latency and errors minor1 min
TwilioSMS Delivery Receipt Delays from Twilio Phone Numbers to Movistar Venezuela minor3 h 26 min
HubSpotSome HubSpot tools may be unavailable for some users no impact stated51 min
GitHubIncident with Git Operations and Pull Requests critical1 h 44 min
FireworksService Degradation for Kimi K3 minorongoing
FireworksService Degradation for Kimi K3 US minor1 h 5 min
TwilioGateway API (Lookup API) Failure Increase on Verizon in United States minor10 h 23 min
OpenAIIncorrect cost data in Costs API exports no impact stated2 h 20 min
DeepgramFlux TTS high latency and websocket disconnects major9 min

And 474 more. All of them: CSV · Who is around them.

ChangesCSV · Atom

See the list as we read it on any date: Time machine

None since tracking began.

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