get production date of of IMEI!?

[-Wickings-]

Hi, need some help here :)

If you have an IMEI, I know it is possible to tell the phone production date out of it ...

Anyone know how to do this?

So I can do it myself! .. is it a algo .. or ?

[-Wickings-]

Please .. someone must know?

[MoonWolf]

If you look at the information below i cant se any way to calculate the date of production. If there is a way it could be in serial but i doubt it.

IMEI:
TAC (Type Approval code):
TAC is the first 6 digits in the IMEI. From these numbers you can find out what type of phone you have. For example I have a Sonyericsson T610 and my IMEI begins with 351253 then I know that if I find another IMEI starting with that number I know for sure that it is exactly the same phone model that I have.

FAC (Final Assembly Code):
FAC is a 2 digit number that comes directly after TAC with other words number 7 and 8 in the IMEI number. The final assembly code provides you with from where the phone is made and from witch manufacturer.

SN (Serial number):
The next 6 digits in the phone is the serial number. This serial number I can’t tell much about since it's up to each provider how to set it.

CD (Check Digit):
Now I have explained 14 digits to you witch provides the IMEI number in the phone. The last digit (number 15) is only used as a Check digit to calculate that you have provided the right IMEI. This digit is calculated by a modula10 algorithm, Also known as Luhms algorithm. When I said before that IMEI only consists of 14 digits is because that this check digit is never used in the GSM/3G network. So if a network asks the phone for IMEI it will only send the 14 first numbers. Then why does the Check digit exists you may ask. Well when you make an IMEI or if you type it into a database you use the Check Digit to se that it is typed correctly. Even the phones can use this digit so that it knows its IMEI is correct.

IMEI example structure:
XXXXXX-XX-XXXXXX-X

<b>IMEISV:</b>
IMEISV (International Mobile Equipment Identity Software Version number) Is often found on newer phones. This number is IMEI with 2 extra digits. The last digits contain the software version number and can be requested by a provider. Note that the SVN is added AFTER the check digit in the IMEI. So if a provider asks for an IMEI the phone will send 14 digit IMEI and SVN in one string. The check digit is not calculated with SVN.

IMEISV example structure:
XXXXXX-XX-XXXXXX-X-XX

[-Wickings-]

Hmm, very wierd.

Have tried contacting www.numberingplans.com, they have the function on thier site. But would like it on my own!

Try see:

http://www.numberingplans.com/index.php?goto=imei&action=analyse&s=351519002370504&action=analyse

[MoonWolf]

Well first of all i tried my mobile. they said it was produced before january 1 2003 not an exact date. and if you look closer to that site i.e download area. you can se that they are selling the databases they look it up from. you can also download an example db. seems like they dont calculate the date.

[-Wickings-]

Yeah i know ... but have tried to contact them but they dont answer, get a error when writing to their mail!

:(

Need that function!

[crux]

very nice page.

how do they recognize the model from imei?

[-Wickings-]

yeah i know, very nice page!

cant figure out if they get it all from their huge database, or what they do!

I would like to know aswell!

[ESN Authority]

very nice page.

how do they recognize the model from imei?

HeHe! If CRUX, the REAL Authority doesn´t know how!!... I guess it´s hard for someone to have the answer! ;)

CRUX you RULE!

[crux]

well in fact i know how. and its nor very hard

the thing is i only have a very small database.

lyke in cybergsm's calc

i want a more complete table.


but that page sure has a huge database. its impossible to store all that info in IMEI

[Luciano]

101% are database
they have databse with approved IMEI for each manufacturer and model nr and also can be connected with direct manufacturer database; like in nokia warranty check.
I will try to compare with an IMEI from Nokia databases to see exactly if the details are the same.

[Luciano]

I comparred few phones from nokia warranty and the anser from this site is general, not exactly:
Production date is not correct at all. They get this from TAC: valid from an manufaturer-model produced for an period of time.

[-Wickings-]

I have tried with my samsung e700, and my 6230, and a friends 6230 .. every one was the EXACT date!

[Luciano]

Try with older models ( 6310i, 6510... ) because on new models TAC is new registered and time betwen TAC registration-purchase is to short.

[.:hack3r2k:.]

very nice page.

how do they recognize the model from imei?
In fact is very easy ... They have an nice database (not quite accurate sometimes) with TAC for each phone model and their manufacturer. So when u input the imei they get search and get all needed data in the database. About production date !? Well u can't know exactly when produced but u can find year when it was produced by analising the ImeiSv.

Br;)

[BadUnlockers]

Nice site too tested many Imei and Models all accurate..
Br

[hakima]

Yeah, really they got a BIG database
Tested too many times!!!
WBR

[-Wickings-]

and i want their database :)

[Dags]

is there any way you can download their database ?

Dags

[Dags]

Try there to download a database

http://www.numberingplans.com/index.php?goto=download

[Dags]

very nice page.

how do they recognize the model from imei?
People who go there and enter a IMEI number that is not reconised they can manually enter the details for example Make and Model then submit.

This is then stored and TAC data etc is then used by the software (database reader) and displayed for all those that try their IMEI number.

Hope this has answered your question :)

Dags

[Luciano]

Hello,

here you have my TAC database from tester I use, it is mostly for Nokia phones.

regards
Luciano

P.S.
For people using Willtek GSM Testers:
I am interest in exchange coupler attenuation values for Willtek Tester, for other models not included in this database; if you have.

[crux]

thank you! :D

btw. where u got it. and where can i get some models to add to it? :D

[Luciano]

thank you! :D

btw. where u got it. and where can i get some models to add to it? :D

I have this database from tester sw, it has corespondent attenuation RF value RX-TX to test proper the phone.

here you can check how an testing is done:
www.phones-direct.ro

direct link:
http://www.phones-direct.ro/uk_testing.htm

[YourPhone]

I just tested it on:
Nokia 3100: 352972003092198 made in germany
Results
Nokia 3310: made in Finland

Dont think its 100%

[Luciano]

I told that is not reliable that web database ( after I made some tests with some phones and compared with internal manufacturer database ), but some people seems to like the way it is, because they can't check properly.

[GSMTEK]

I now for a fact thats its poseble but you had the rong end
look on the back of your're samsung you have emei nr and a s/n number the month and year is hidden in there
I don't now how to read it but i do know its just 2 or 3 digits of the number,
than you have to look at a table to know witch month and witch year

[ibraheem]

from what i understand about these things is that for mostly nokia phones it's *#0000# to check the date of manufacture.

[GSMTEK]

http://users.pandora.be/Qbank/GSMTEK/samsung.jpg

this aplays to phone's , chargers , batteries and all other Samsung phone stuff

So no fussing around with codes to type in becouse thats noty how it works with samsung even with a Nokia if you pres *#0000# the date displayed is the date of the software version and not the production date ...

[abbeydguru]

@GSMTEK....that is nice one from you. I think this one is more reliable.

[crux]

i had something similar to this but for siemens.

i will search in my files :p