Asterisk Customer List

Do you sell to companies who use Asterisk? Do you have a product that works with Asterisk? Do you offer Asterisk consulting and implementation services? If you do, then you’ll love our actively-managed database of Asterisk users.

Last Updated:
2,500 Companies
  • Company Name
  • Website
  • Phone Number
  • Mailing Address
  • Industry
  • Employee Range

"After piloting various data vendors, it was easy to see that ReadyContacts is a cut above."

Anna Jensen
Anna Jensen Director of Marketing, DigitalShadows


  • salesforce
  • gartner
  • ca technologies
  • equifax
  • IBM
  • zuora

Asterisk Customers Coverage

If you're wondering, "How many customers does Asterisk have?" we've got you covered. We track Asterisk customer insights globally and across verticals. Here’s a quick snapshot of the coverage we have for a list of companies that use Asterisk and where they belong.

Verified Stamp Request a customized sample for this criterion

Asterisk customers Worldwide

Asterisk customers by US States

Asterisk customers by Metro Areas

Asterisk customers by Industry

Here’s why our data is better

We put freshness & accuracy ahead of everything here at ReadyContacts and it shows in our data that is software-powered & human-curated.

  • Freshness Our data is always freshly validated prior to delivery.
  • Accuracy Our multi-step software & human review process ensures the highest accuracy.
  • Targeting We are able to find highly specific target audiences for your needs.
  • Comprehensive We find every prospect out there for your campaign specification.
  • Intelligence Our datasets come backed with detailed & actionable intelligence.
  • Guarantee We promise 90% accuracy across all datasets & stand by it.

Get a list of Asterisk customers in 3 steps


Share your spec & request a sample

Submit your specifications for a Asterisk customer list based on your sales & marketing campaign needs.

Get a personalized sample & counts

Ready creates a freshly validated sample dataset of Asterisk customers with contacts & shares the overall counts for your specification.

Finalize specs & purchase dataset

Once you review the sample, you can finalize any tweaks to the dataset of companies using Asterisk with your own specifications and purchase the full set of records or a part of them.

Asterisk Customers List: FAQs

What is Asterisk?

Asterisk is an open source PBX system that enables unified communications. It allows companies to make and receive calls, host conference calls, manage voicemail, and more using a software-based PBX instead of expensive proprietary hardware. Asterisk supports traditional PSTN lines as well as VoIP.

How many customers does Asterisk have?

As an open source project, Asterisk does not have official "customers" per se. However, it is very widely used - Asterisk powers IP PBX systems at companies like Google, IBM, AT&T, and Lowe's. In total it is estimated that over 1 million Asterisk PBX systems are deployed worldwide.

Who uses Asterisk?

Asterisk is used by a wide variety of businesses across many industries. Typical users include call centers, hotels, government agencies, universities, and any organization that needs an advanced phone system. Asterisk is popular for its flexibility and low cost compared to proprietary PBX hardware.

Which companies use Asterisk?

Major companies using Asterisk include Google, IBM, AT&T, Lowe's, McDonald's, and over 85% of the Fortune 500. Asterisk is also popular with small and midsize businesses, call centers, hotels, universities, and government agencies looking to save money on phone infrastructure.

What industries is Asterisk most popular in?

Asterisk is widely used across industries, but is especially popular in call centers, hotels, education, government, and retail. Any industry that requires advanced telephony features like IVRs, voicemail-to-email, or call recording can benefit from Asterisk.

What are some popular alternatives to Asterisk?

Top alternatives to Asterisk include 3CX, Avaya IP Office, Cisco CallManager, Microsoft Skype for Business, RingCentral, Vonage Business Cloud, and other proprietary PBX systems or hosted VoIP providers. However, Asterisk remains a leading open source option.

What is to be expected from Ready's Asterisk client list?

Ready's Asterisk client list provides key details on companies using Asterisk for their phone infrastructure. This allows you to reach decision makers at organizations already leveraging Asterisk for targeted sales and marketing. Contact information, company size, industry, and other details help qualify leads.