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David Chen
Research Analyst
Articles by David Chen
July 29, 2026
Who Uses +971? UAE Emirates and Phone Prefixes
A practical guide to +971 phone prefixes for UAE mobile numbers and major emirate landline areas.
Read moreJuly 11, 2026
How to Format Any Phone Number in E.164 for Free
Turn local phone numbers into E.164 format by adding the country code, removing domestic-only prefixes, and keeping the number within global length rules.
Read moreJune 26, 2026
How Country Calling Code Directories Prevent Dialing Errors
Country calling code directories reduce wrong-country calls by separating country codes, trunk prefixes, area codes, and local numbers.
Read moreMay 27, 2026
The Small Context Notes That Make Saved URLs Searchable
Learn the three sentence patterns that turn vague bookmarks into searchable, reusable resources for research, projects, and team handoffs.
Read moreJune 2, 2024
Advanced URL Extraction Techniques for Researchers
Discover advanced techniques for extracting URLs from research papers, documents, and web pages to enhance your research workflow.
Read more