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Coordinate Based 9-1-1 Routing

Coordinate Based Routing (CRDB) performs selective routing on a 9-1-1 call based on the X, Y coordinates from which the call originated. The X, Y coordinates respectively represent the longitude and latitude of a geographic position. The CRDB provides a translation between a given position expressed in X,Y coordinates, to an Emergency Services Zone (ERZ), by determining the ESZ in which the coordinates are located.


How is Bandwidth Involved with CRDB

CRDB is one of the three 9-1-1 routing options that Bandwidth offers. Coordinates Routing is ideal for Over-the-Top (OTT) mobile VoIP providers or IoT devices with mobile connectivity. If your users are constantly moving and don’t have a set location, then this is the ideal 9-1-1 service for your business. Our customers that utilize CRDB range from app developers to businesses looking for a back-up 9-1-1 service when a traditional address cannot be provided. CRDB differs from address-based routing by using an individual’s latitude and longitude coordinates such as those provided by a GPS unit in a mobile phone.

When a 9-1-1 call is placed, Bandwidth is able to assess these coordinates and compare them to our PSAP boundaries files. From there we route the call directly to the proper PSAP. As an additional service, we offer reverse geocoding as another option to provide a physical address within seconds.


What are the Benefits Bandwidth’s CRDB Service

Bandwidth understands the importance of getting it right when it matters most. We have an extensive spread of 9-1-1 offerings to fit the needs of our wide range of customers. The location of your end users is sensitive information which is why we offer easy-to-use, secure APIs to allow you to provision 9-1-1 access in an efficient and safe manner. Bandwidth employs 9-1-1 experts to assess the best 9-1-1 services for our customers while also supplying a 24/7 on-call NOC team that provides continuous support so your business can keep focusing on what it does best.



Where We Talk About CRDB

On our site

  • Bandwidth 9-1-1 Access Service
  • March 2017 Product Updates: Group Texting API, Ready-for-Anything Mobile 9-1-1 Routing, Expanded Canadian Coverage
  • Bandwidth 9-1-1 Supports Mobile VoIP Users with Robust New Routing Services
  • In our downloads

  • Types of 9-1-1 Services
  • 9-1-1 Requirements for OTT App Providers
  • 9-1-1 FAQ
  • Patronus Gives Users a Modern Way to Dial 9-1-1 Thanks to Bandwidth


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    “Bandwidth” refers to Bandwidth Inc. and/or CLEC, LLC.