How to obtain contacts through a US number query and generate a VCF file?

Based on the rules of different countries, the system automatically completes the country code and verifies the number length (e.g., 10 digits + country code for the United States, 10 digits + country code for India) to avoid omissions in the filtering process due to formatting errors.

In Telegram (TG) lead generation scenarios, many companies are still manually adding friends one by one and verifying the validity of each customer. Not only can they only filter out a few dozen valid leads per day, but they also often waste a lot of time adding inactive accounts or non-target users.TG screening is the core solution to this dilemma – through TG screening, businesses can batch-screen genuine and valid customers, improving efficiency by over 300% compared to manual screening.

Leveraging ITG's comprehensive screening capabilities, the TG screening function enables highly efficient operation of the entire process of "batch screening - user segmentation - precise outreach," transforming customer acquisition from "inefficient manual" to "intelligent and precise."This article will start with the pain points of manual customer acquisition and explain in detail how ITG's full-domain screening TG filter can help enterprises boost efficiency and accurately reach target users.Manually finding and verifying customers in Telegram is not only time-consuming and labor-intensive, but it can also trap businesses in three major efficiency pitfalls. These problems can only be completely solved by using Telegram for screening.

ITG's full-domain screening TG number filtering function is not simply "batch verification of numbers," but rather helps enterprises boost efficiency by 300% and improve the accuracy of outreach through three core capabilities: "batch screening, precise stratification, and automated linkage."In today's increasingly competitive market for customer acquisition on TG, the days of "manually searching for customers one by one" are over. TG's customer screening feature helps businesses boost efficiency by 300% through efficient batch screening, precise segmentation, and risk avoidance, while also improving conversion rates.

The TG filtering function of ITG's full-domain screening perfectly combines "efficiency" and "precision", becoming the "core engine" for enterprises to expand their customer base.

Say goodbye to inefficient manual operations with ITG's full-domain filtering TG filter, boost customer acquisition efficiency, accurately reach target users, and gain a competitive edge.Power-on and online screening provide real-time insights into user online status, providing accurate data support for advertising and social media operations.

The system combines profile picture and nickname filtering to efficiently target potential users, making social media operations and advertising more controllable.The cloud control platform offers customized modes to meet diverse business needs, enabling marketing teams to quickly execute multi-platform promotion tasks.

The batch removal of unused and low-activity accounts ensures clear and reliable promotion data, improving ad reach and conversion rates. The system screens highly active users based on interaction frequency, increasing community engagement and optimizing advertising effectiveness.Unified multi-platform account management enables efficient operation of accounts across Telegram, WhatsApp, LinkedIn, and Facebook.