Telegram User ID vs. Phone Number: Which is the True Core of Automated Marketing?

For beginners, phone numbers are the only way to reach users. But for seasoned Telegram automation marketing experts, the Telegram User ID is the truly valuable long-term data asset.

What is a Telegram User ID?

A User ID is a unique numeric identifier assigned by the platform to each user. Unlike phone numbers, User IDs are permanent and never change after account creation.

In-Depth Comparison Between User ID and Phone Number

Dimension	Phone Number	User ID	Marketing Impact
Uniqueness	Unique but changeable	Absolutely unique and unchangeable	ID is better for long-term user tracking
Privacy	Users can hide their phone numbers	Cannot be hidden (API accessible)	ID can bypass privacy settings for identification
Stability	Becomes invalid when the phone number is deactivated	Valid as long as the account exists	ID is the foundation for building a database
Outreach Method	Requires initiating a request via phone number	Can be directly targeted via API	ID greatly improves automation script efficiency

Why Focus on User ID in the Customer Acquisition Process?

In practical operations, after filtering active numbers through KK-DATA, the first step should be converting these phone numbers into corresponding Telegram User IDs.

Reasons:

1. Prevent data obsolescence -> Even if a user changes their phone number, as long as the ID remains unchanged, you can still reach them.
2. Improve script speed -> API calls based on ID are much faster than requests based on phone numbers and are less likely to be flagged as abnormal by the platform.
3. Precise profiling -> Through IDs, you can record user interaction history and implement segmented marketing.

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