how to get ad manager without creating adsense?

If you want to use Google Ad Manager without creating an AdSense account, it is possible. Ad Manager and AdSense are two different platforms. Ad Manager is mainly used to manage ad inventory and ad delivery, while AdSense is an ad network that allows publishers to earn revenue by displaying ads.

If you want to use Google Ad Manager without creating an AdSense account, that's fine. Ad Manager is an independent ad management platform that manages ad inventory and ad delivery, while AdSense is an ad network that makes money by displaying ads.

One option is to contact Google Support and explain the regional SMS issue — sometimes they can offer an alternative verification method. Some users also report success by switching to a different mobile carrier or SIM from another region, but only if it’s officially supported by Google. Avoid any methods that bypass Google’s verification requirements, since those can lead to account issues.