Despite BlackBerry's commitment back in August to keep network access for BBOS devices running beyond the end of 2019, carriers are free to shut down the services as they fit and according to emails being sent out, UK carrier EE has decided to do just that on October 31, 2019.
Hi, BlackBerry Internet Services (BIS) will be switched off on 31 October 2019.
If you use a BlackBerry device pre-BlackBerry 10 (ie. Curve, Bold, Torch, Storm, Porsche), it will no longer have access to the following applications: BlackBerry Email, BlackBerry Messenger, BlackBerry World, Facebook, and Web Browsing.
You'll still be able to use your phone to make and receive calls, send and receive texts, and may be able to use data through a WiFi connection or your data plan allowance.
We reached out to EE customer support which confirmed the email as well. Although the news certainly shouldn't be shocking, and I'm sure more carriers will be doing the same soon, it does seem a bit of a shame since BlackBerry themselves are keeping the services available.