Re: data point - anonymous E.164 number usage
- Date: Fri, 27 Feb 2004 08:16:30 +0800
And the point is?...
Michael Haberler wrote:
In the context of validation of numbers for ENUM, I have tried to
estimate the amount of mobile users which have totally anonymously
bought a prepaid SIM card, or in other words, users of E.164 numbers
which have no trace at all in a phonebook or other records.
In the EU, all countries except Germany, Hungary and Italy permit
totally anonymous purchase of prepaid SIM cards. This indicates that
about 65% of the EU population have access to anonymous mobile service
(even in Italy, just a taxpayer code is needed which is not subscriber
data but allows to track down a user for law enforcement - but lets
leave that out for the sake of argument; in France I understand a record
is made for purposes of recovering a lost SIM card but not for proof of
There are about 400 Million mobile users in Europe, and penetration of
prepaid is about 40%. Assuming that nobody registers if he doesnt have
to, and multiplying those figures a ballpark estimate is that *there are
about 100 Million E.164 numbers in use in Europe without any subscriber
data just through the use of prepaid SIM cards.