AT&T launches location-based routing of 911 wireless calls to relevant US call centers, it announcements. The company says it will be the first US carrier to “quickly and accurately identify where a 911 wireless call is coming from using GPS and hybrid device information.” This will allow him to direct the call to the correct call center 911 (Public Safety Answering Point or PSAP), which can then “send faster to those who respond to the right place,” he wrote.

Until now, 911 wireless call routing was based on the location of cell towers, often with an accuracy of no better than 10 miles. The new system will be able to locate a device within 50 meters of its location, potentially reducing delays, especially when making calls in PSAP border areas where state, county or city borders overlap, AT&T said.


AT&T cooperates with a company called Intrado to use the 911 routing feature based on the location before the route. Intrado notes that currently about 10 percent of wireless calls and up to 50 percent in border areas need to be transferred to another emergency communications center (ECC), leading to potential delays. The new system uses device-based hybrid data and dynamic routing to reduce the need for transfers without sacrificing speed.

The Federal Communications Commission (FCC) has launched an investigation into the more accurate diversion of calls to the correct PSAP back in 2018so it has been going on for some time. The regulator also recently asked carriers to start providing location (height) data on the Z axis to help emergency services locate where 911 calls are coming from within multi-storey buildings.

Nationwide deployments of AT&T are now available in Alaska, Colorado, Hawaii, Idaho, Montana, Oregon, Washington, Wyoming, Kansas, Illinois, Iowa, Minnesota, North Dakota, Missouri, Nebraska, South Dakota and Guam. It will be available in other regions in the next few weeks, and implementation is scheduled to be completed by the end of June 2022.

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