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From: Elmo on 27 Jan 2010 10:04
What is the algorithm for the checksum for an IMEI number?

Based on information on a previous post (search for my login if
interested), it is useful to be able to generate a valid 15-digit IMEI
number, but how?

As we all know, it's useful to have in your mental toolbox the ability to
generate valid PC:MAC addresses, valid address:phone numbers, valid
street:zip codes, valid vehicls:VINs, valid appliance:serials, etc. ... but
how does one generate a valid IMEI number?

Do you know what the IMEI number-generation algorithm is?
From: alexd on 27 Jan 2010 15:12
Meanwhile, at the alt.internet.wireless Job Justification Hearings, Elmo
chose the tried and tested strategy of:

> Do you know what the IMEI number-generation algorithm is?

http://en.wikipedia.org/wiki/IMEI#Check_digit_computation

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DIMENSION-CONTROLLING FORT DOH HAS NOW BEEN DEMOLISHED,
AND TIME STARTED FLOWING REVERSELY

From: Jeff Liebermann on 27 Jan 2010 15:21
On Wed, 27 Jan 2010 15:04:30 +0000 (UTC), Elmo
<dcdraftworks(a)Use-Author-Supplied-Address.invalid> wrote:

>Do you know what the IMEI number-generation algorithm is?

<http://forum.gsmhosting.com/vbb/archive/index.php/t-83541.html>

(Found with Google in about 10 seconds).

--
Jeff Liebermann jeffl(a)cruzio.com
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From: Dennis Ferguson on 27 Jan 2010 23:17
On 2010-01-27, Elmo <dcdraftworks(a)Use-Author-Supplied-Address.invalid> wrote:
> Based on information on a previous post (search for my login if
> interested), it is useful to be able to generate a valid 15-digit IMEI
> number, but how?

What I actually gleaned from the previous post is that AT&T doesn't
care. If you change a single digit in a valid 15-digit IMEI, as
you said you did, you get an invalid one. AT&T took it anyway.

Dennis Ferguson
From: Elmo on 28 Jan 2010 01:58
On Wed, 27 Jan 2010 22:17:41 -0600, Dennis Ferguson wrote:

> What I actually gleaned from the previous post is that AT&T doesn't
> care.

Yup. What happened was I've been paying about $145/month for the Blackberry
with world access and full data and blackberry enterprise and whatever.

Then my needs changed, about a year and a half into the plan. I called 611
from my Blackberry to remove all the stuff I no longer needed but the
customer support gal wouldn't get rid of the data plan solely because it
was a blackberry (not, I remind you, not because they subsidized it as they
subsidize all phones initially).

I argued that I could easily move the SIM card to an unlocked Motorola RAZR
and she said if I did that, then I could remove the data plan. I told her
then remove it, and she said no, because I was using the blackberry.

So I asked for her supervisor. When the supervisor came on line, she
already knew what I wanted. She told me I could only remove the data plan
if I changed the phone so I told her I changed the phone right then and
there. I was with a friend so we took out his Motorola RAZR and changed the
last digit. She didn't seem to care. She dropped the data plan.

The only drawback I can see is she also dropped the warranty but that's a
small price to pay to save about 50 bucks a month (taxes and stuff
included).
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