Костанай - Рекламный чат is a public Telegram group — anyone can join without invitation. Your phone number is never visible to other members unless you've made it public in your Telegram privacy settings. You can leave at any time with a single tap.

No. Telegram never notifies your contacts when you join or leave a group. Other members inside Костанай - Рекламный чат can see your username only if you post — your membership is not visible to anyone outside the group.

Костанай - Рекламный чат is a Telegram group for anyone interested in advertising and services. Members can expect regular discussions on jobs and goods, along with kostanay to discover.

We verify every listing is publicly accessible, has a minimum member count, and exclude groups Telegram has marked as harmful. Костанай - Рекламный чат currently has 68 members, last verified 24 May 2026. If you've joined Костанай - Рекламный чат and noticed something suspicious — a review on this page helps others stay safe.