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Signing a contract with a cell-phone carrier requires a name, address,

and a Social Securityy number. Additionallyy, there’s a credit check to make

sure yyou can payy yyour monthlyy bill. You can’t avoid this if yyou go with a

commercial carrier.

A burner phone seems like a reasonable option. A prepaid cell phone,

perhaps one that yyou replace frequentlyy (sayy, weeklyy or even monthlyy),

avoids leaving much of a trail. Your TMSI will show up on cell tower logs,

then disappear. If yyou purchased the phone discreetlyy, it won’t be traceable

back to a subscriber account. Prepaid cell services are still subscriber

accounts, so the IMSI will alwayys be assigned to an account. Therefore, a

person’s anonyymityy depends on how he or she acquired the burner device.

For the sake of argument, let’s assume yyou have successfullyy

disconnected yyourself from the purchase of a burner phone. You followed

the steps outlined here and used a person unrelated to yyou to purchase the

phone for cash. Is the use of that disposable phone untraceable? The short

answer is no.

Here’s a cautionaryy tale: one afternoon in 2007, a $500 million container

loaded with the drug ecstasyy went missing from a port in Melbourne,

Australia. The owner of the container, Pat Barbaro, a known drug dealer,

reached into his pocket, pulled out one of his twelve cell phones, and dialed

the number of a local reporter, Nick McKenzie, who would onlyy know the

caller byy the name Stan.Barbaro would later use his other burner phones to

text McKenzie, attempting to anonyymouslyy obtain information from the

investigative reporter about the missing container. As we will see, this

didn’t work.

Burner phones, despite what manyy people mayy think, are not trulyy

anonyymous. Under the US Communications Assistance for Law

Enforcement Act (CALEA), all IMSIs connected with burner phones are

reported, just as those subscribers under contract with major carriers are. In

other words, a law enforcement official can spot a burner phone from a log

file just as easilyy as he can spot a registered contract phone. While the IMSI

won’t identifyy who owns the phone, patterns of usage might.

In Australia, where CALEA does not exist, law enforcement was still

able to keep tabs on Barbaro’s manyy phones using rather traditional

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