Messaging Resources
Area Code Resources
Find resources related to area codes and their usage in different regions.
Discover Area Code 406: Coverage, cities, carriers, history, and regulations of Montana's sole area code.
Discover everything about Area Code 505, covering Albuquerque, NM. Learn about its geographic reach, dialing patterns, and more.
Explore Area Code 609 covering Atlantic City, NJ. Learn about geographic coverage, cities, and dialing regulations.
Phone Number Standards
Learn about international phone number formats, area codes, and validation.
Bhutan phone numbers (+975): complete format guide with area codes and validation rules. Includes mobile/landline patterns, examples, and regex snippets.
Bonaire, Sint Eustatius, and Saba phone numbers (+599): complete format guide with area codes and validation rules. Includes mobile/landline patterns, examples, and regex snippets.
Saint Vincent and the Grenadines phone numbers (+1-784): complete format guide with area codes and validation rules. Includes mobile/landline patterns, examples, and regex snippets.
Messaging Resources
Telecommunications Standards, SMS API Compliance, and more.
Estimate your SMS costs in Nigeria from top providers like Twilio, Plivo, Sinch, and Infobip. Compare rates and choose the best SMS API service.
Estimate your SMS costs in Korea Republic of from top providers like Twilio, Plivo, Sinch, and Infobip. Compare rates, features, and choose the best SMS API service for your needs.
Estimate your SMS costs in Saudi Arabia from top providers like Twilio, Plivo, Sinch, and Infobip. Compare rates, features, and choose the best SMS API service for your needs.
SMS Compliance Resources
Explore resources and standards for SMS compliance and regulations.
Explore SMS guidelines in Nepal: compliance, message length, and best practices.
Guide to 10DLC SMS registration with steps for TCR brand verification, campaign vetting, use-cases, MNO class assignment, and carrier compliance.
Discover Samoa's SMS guidelines: best practices, compliance, and technical details for effective messaging strategies.
Messaging Channels
Explore different messaging channels and strategies to maximize reach.
Apple's iOS 18 rolls out RCS support to iPhone, revolutionizing text messaging with high-quality media sharing, read receipts, and enhanced cross-platform features. Learn how to activate RCS on your iPhone and what it means for your messaging experience.
Legal Resources
Access legal guidelines and resources for telecommunications and messaging.
Commercial License Agreement - Sent, Inc.
Online Terms of Service - Sent, Inc.
Supplemental Terms of Service - Sent, Inc.
Messaging Tools and Utilities
Discover tools to optimize your messaging workflows and improve deliverability.
Discover detailed phone number insights with our API, including carrier, fraud status, and portability. Optimize your data lookup process today.
Messaging Resources
Telecommunications Standards, SMS API Compliance, and more.
SMS Compliance and Regulations by country.