DOTS GeoPhone
Instant Reverse Phone Lookup
For US and Canada
Real-time reverse look-up returns contact and carrier details
Identifies line types like landline, VoIP, and wireless
Distinguishes residential, business, toll-free and government numbers

DOTS - GeoPhone real-time service identifies and validates the business or personal name and address associated with a given telephone number. Our GeoPhone service also returns carrier name, line type, longitude and latitude data that provides you greater insight into your customers and leads. Our continuously updated database of over 230 million residential phone numbers and 40 million business listings ensures that you are receiving the most accurate and up-to-date data available.

If you are looking for deeper details on mobile phone numbers, please check out our DOTS GeoPhone Plus which includes additional wireless and number porting information.

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How GeoPhone Works
Please select a phone number to see how our service appends corrected phone numbers and returns contact record details.


Choose from common use cases

Phone Number

Request URL

Real-Time API Responses

See below for the full response from our GeoPhone service.

Service Response


Please select input data to see results

Provider Returns
NameFrontier California Inc.
CitySanta Barbara
Line TypeLandline

Contact Returns
NameService Objects
Address802 E Cota St
CitySanta Barbara
View Full results


For Developers

Our services are built API-first with a focus on data quality and ease of integration.
We support REST, SOAP, GET and POST requests over HTTP/S outputting in XML and JSON formats.

Our API web services are compatible with all major programming languages and we have over 200 pieces of sample code (both snippets and full solutions) available to help with your integration.

Features and Benefits




Uptime Guarantee


Support Engineers

  • Reverse lookup of landline, VolP and toll-free numbers for residential, business and government listings
  • Daily updates to residential and business contact information from over 4,000 telecom carriers
  • Database includes over 230 million residential listings and 40 million business numbers
  • Identify line types such as landline, wireless or VOIP phone numbers
  • Provides Contact and Local Exchange Carrier (LEC) information for US and Canadian phone numbers
  • Returns phone type (residence or business)
  • Match rate accuracy of 99.75% for listed telephone numbers
  • Response time as fast as 400 milliseconds
  • Real-time API or batch service available
Additional Resources
Three Ways to Use GeoPhone
Real-Time API
Cloud Connectors
Connects with major marketing, sales and
ecommerce platforms
List Processing
Securely upload lists
for processing

Some of the world's biggest brands rely on Service Objects

Cookies Policy

General Use

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