DOTS Phone Append 2
Real-Time Lookup and Append
Missing Phone Numbers Using
Contact Name and Address
Appends consumer and business phone numbers
Improves the completeness of your contact records
Over 800 million US and Canadian phone records updated daily

DOTS Phone Append 2 is a real-time API that enables you to append missing consumer and business phone numbers to your contact data records by cross-referencing their name and address against large authoritative datasets. Phone Append also validates and standardizes the submitted street addresses while providing the phone number’s line type. Our proprietary database is updated daily with over 800 million consumer, business and government phone number listings, resulting in industry-leading match rates up to 75%. With this service, companies ensure that their customer contact records are complete and always up-to-date.

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How Phone Append Works
Please select a contact record to see how our service returns a phone number, corrects the address and provides line type.


Choose from common use cases

Postal Code

Request URL

Real-Time API Responses

See below for the full response from our Phone Append service.

Service Response


Please select input data to see results

Phone(334) 585-0282
NameAda M Jones
Address847 County Road 48
Postal Code36310-5913
Is ResidentialTrue
Line TypeLandline
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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

  • Proprietary data-set with over 800 million consumer, business and government listings
  • Coverage for both US and Canada, including Puerto Rico and Guam
  • Returns indicator for residential and business address types
  • Certainty score indicates phone contact availability
  • Returns matched name and validated address along with phone number
  • Identifies business vs. residential phone numbers when using the Composite operation
  • Real-time API or batch service available
  • Updated daily
Additional Resources
Three Ways to Use Phone Append
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

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