How many email patterns does OpenPhone use?

OpenPhone uses 13 known email patterns.

What domain does OpenPhone use for work emails?

OpenPhone uses openphone.co, openphone.com for work email addresses.

Most Common Email Formats at OpenPhone

OpenPhone's most common email format is First.Last@openphone.co (ex. John.Doe@openphone.co), used for 80% of openphone.co addresses. OpenPhone uses 9 email patterns across 3 domains: openphone.co, openphone.com and quo.com. Percentages are the share of addresses within each domain.

@openphone.co

4 patterns

Format	Example	Share of openphone.co
First.Last@openphone.coMost common	John.Doe@openphone.co	80%
First@openphone.co	John@openphone.co	17%
First.Middle@openphone.co	John.Michael@openphone.co	2%
Last@openphone.co	Doe@openphone.co	1%

@openphone.com

3 patterns

Format	Example	Share of openphone.com
First.Last@openphone.comMost common	John.Doe@openphone.com	89%
First.MiddleLast@openphone.com	John.MichaelDoe@openphone.com	5%
FLast@openphone.com	JDoe@openphone.com	6%

@quo.com

2 patterns

Format	Example	Share of quo.com
First.Last@quo.comMost common	John.Doe@quo.com	94%
First@quo.com	John@quo.com	6%

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Frequently Asked Questions

What does OpenPhone do?

OpenPhone was founded in 2018 and operates in the Software Development industry, alongside similar companies like TextNow, Nextiva and Aircall. You can visit quo.com. Explore OpenPhone's company overview page for more information.

What is OpenPhone's email address format?

OpenPhone's email format typically follows the pattern of First.Last@openphone.co; this email format is used 80% of the time. Other contacts within LeadIQ's database had email formats such as First@openphone.co and First.Middle@openphone.co. Looking for more contact data? Unlock accurate emails and phone numbers from millions of profiles verified in real-time.

How many employees does OpenPhone have currently?

OpenPhone has approximately 48 employees as of October 2026. Key team members to contact include Directeur-Fondateur: H. A., Vice President: J. P. and Senior Software Engineering Manager, Ai And Automation Squad: H. J. For more team information and contact data, explore OpenPhone's employee directory with LeadIQ.

OpenPhone Email Format

Q: What is OpenPhone's email address format?

OpenPhone's email format typically follows the pattern of ${fn}.${ln}. Other email formats include ${fn} and ${fn}.${mn}.

Software DevelopmentCalifornia, United States11-50 Employees

Quo, formerly OpenPhone, provides a collaborative phone system for teams. The platform consolidates customer calls, texts, and contacts into a single AI-powered app that works across devices. Based in San Francisco, California, the company serves a mid-sized base of business teams.

In June 2026, Quo launched a Tasks feature to capture, assign, and track follow-up work arising from conversations. The same period also saw expansion of its CRM integrations, including Attio, Pipedrive, and Zoho, along with connectors to Claude and ChatGPT.

Most common format

First.Last@openphone.co

Example: John.Doe@openphone.co

9 patterns across 3 domains. See all formats

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Most Common Email Formats at OpenPhone

@openphone.co

@openphone.com

@quo.com

Need a specific person's email?

Frequently Asked Questions

What does OpenPhone do?

What is OpenPhone's email address format?

How many employees does OpenPhone have currently?

OpenPhone Email Format

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What you can expect from LeadIQ:

Ready to create more pipeline?

Everything for prospecting,
in one platform.