Replicant

h1. IMEI

h2. Privacy

The IMEI is an identifier that identify the mobile phone and it's on the network.

With it, it's also possible to get the brand and model of the mobile phone being used, and some operator did go as far as showing the brand and model of the phone on the customer web interface.

h2. Legal aspects of changing the IMEI

We would need to do some more legal research on that to know in which conditions it's legal or not.

h2. Operator blocking non approved mobile phones brands or models

h2. European union

In the European Union, the net neutrality regulation makes sure that user "can use the equipment of their choices" (TODO: find the reference) to access the network.

So wile there is some IMEI blocking in practice, as for instance the IMEI 00000000[...][1] is blocked in many networks, it's not legal to block devices based on their IMEI if that IMEI is valid and that the device is not stolen, etc.

For instance Operators aren't supposed to block older devices, devices from less known brands, devices from a specific brand, devices not tested or approved by the operator, etc.

We don't have any report of less common mobile phones like the Openmoko, or the GTA04 being blocked.

References:

fn1. This has been observed with OsmocomBB, by forgetting to add the IMEI inside the configuration file and trying to register, which didn't work. Once the proper IMEI (which is written on the back of the phone below the battery) was added to the configuration file, registering to the network worked.

h2. Brasil

In basil, there is some IMEI blocking going on too and, but the articles tend to point out that valid IMEI aren't blocked. 

This started recently (2018 and 2019)[1], and that we don't have any report of less common mobile phones like the Openmoko or the GTA04 being blocked.

Nevertheless, there is a website that can use to check if a given IMEI is blocked or not, but it only works from Brazilian IP addresses (so it's less practical if you intend to travel there): https://consultaaparelhoimpedido.com.br/public-web/welcome

There are some articles on the topic:

* https://olhardigital.com.br/noticia/anatel-comeca-a-bloquear-celulares-piratas-no-brasil/74225

* https://www.techtudo.com.br/noticias/2019/01/bloqueio-de-celular-pirata-anatel-da-primeiro-passo-em-sp-e-14-estados.ghtml

* https://olhardigital.com.br/noticia/anatel-comeca-a-bloquear-celulares-piratas-no-brasil/

If I understood correctly, the articles says that if the IMEI is in the GSMA database it should be ok, but I don't speak Portugese.

References:

fn1. https://www.anatel.gov.br/institucional/noticias-destaque/2225-bloqueio-de-celulares-irregulares-comeca-em-24-03-nas-regioes-norte-nordeste-e-sudeste