WASHINGTON D.C. – The nation’s major wireless providers have agreed to a deal with the U.S. government to build a central database of stolen cellphones, what the Wall Street Journal called part of a broad effort to tame an explosion of thefts nationwide.

The database, which the wireless companies will build and maintain, will be designed to track phones that are reported as lost or stolen and deny them voice and data service. The idea is to reduce crime by making it difficult or impossible to actually use a stolen device, reducing resale value.

Currently, Verizon Communications Inc. and Sprint Nextel Corp. block phones that are reported stolen from being reactivated. AT&T Inc. and Deutsche Telekom AG’s T-Mobile USA don’t. All four have agreed to be part of the new database.

“New technologies create new risks,” said Julius Genachowski, chairman of the Federal Communications Commission, which negotiated the database proposal. “We wanted to find a way to reduce the value of stolen smartphones.”

Cellphone theft is one of the fastest growing crimes in the U.S., law-enforcement officials nationwide say. The deal between the FCC and the wireless carriers is partly the result of pressure from frustrated police chiefs. The Major Cities Chiefs Association, an affiliation of 70 police chiefs from large cities across the U.S. and Canada, published a resolution in February calling on the FCC to require telecom companies to implement technology to disable stolen devices.

Behind the increase in crime: A lucrative market for used phones. Thieves can sell pilfered devices to local merchants or street-corner middlemen?or hawk them on sites such as eBay.com, Amazon.com or Craigslist.org, where a used iPhone, for instance, can fetch several hundred dollars.

In New York there were more than 26,000 incidents of electronics theft in the first 10 months of 2011?81 percent involving mobile phones?according to an internal police-department document reported by the New York Daily News.

The report said electronics are now the most stolen type of property, surpassing cash. In Washington, D.C., cellphone-related robberies jumped 54 percent from 2007 to 2011 according to the Metropolitan Police Department.

Details of the national stolen-phone database have yet to be worked out, but a broad outline has been agreed to.

Wireless phones that have been reported stolen to the carrier will be listed in the database using unique serial numbers associated with mobile gadgets. The carriers will block listed phones from accessing carrier networks for voice and data service.

Carriers will roll out their own individual databases within six months. The individual databases will be integrated and centralized over the 18 months thereafter. Smaller, regional wireless carriers are expected to join the database over two years, according to a person familiar with the plan. As part of the agreement, wireless carriers will also roll out initiatives to encourage mobile-phone users to set up passwords on their devices to deter theft.

Design of the stolen-phone database is complicated by the fact that the carriers use very different cellphone technologies. Verizon and Sprint operate what is known as a CDMA network. A CDMA handset possesses an electronic serial number on the device itself, which enables the two companies to block handsets from being reactivated if they are stolen.

AT&T and T-Mobile, by contrast, use a different technology, GSM, which identifies individual handsets by a tiny, removable SIM card. This makes GSM phones particularly attractive to thieves, since it is easy to install a new SIM card on a stolen device.

Despite the differing network technologies, it is important to have one central database of stolen phones. One reason is because, as carriers switch their networks to the next-generation LTE standard, it could become easier for thieves to transfer stolen phones among them.

Officials from AT&T and T-Mobile said the carriers are working on technologies to block reuse of stolen phones on their networks. “We are working toward an industrywide solution to address the complexity of blocking stolen devices from being activated on ours or another network with a new SIM card,” T-Mobile said in a statement. “This is not a simple problem to solve.

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According to an FCC official, the SIM-card problem will likely be solved by the carriers’ making an additional check to ensure that the devices themselves are authorized to work on the network, not just the SIM card.

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