Long codes are normal 10-digit phone numbers that can be used to send and receive text messages. They’re the cheapest option for a dedicated number and can be set up in just a couple of minutes, making them a popular choice if you’re on a budget or in a hurry to get started. The biggest advantage of long codes is that they support both domestic and international communications. They’re perfect for global businesses or companies who aspire to be one. However, if the success of your SMS program depends on customers initiating contact with you, you should consider a short code instead.


He is the co-founder of Neil Patel Digital. The Wall Street Journal calls him a top influencer on the web, Forbes says he is one of the top 10 marketers, and Entrepreneur Magazine says he created one of the 100 most brilliant companies. Neil is a New York Times bestselling author and was recognized as a top 100 entrepreneur under the age of 30 by President Obama and a top 100 entrepreneur under the age of 35 by the United Nations.

Short codes offer very similar features to a dedicated virtual number, but are short mobile numbers that are usually 5-6 digits. Their length and availability depend on each country. These are usually more expensive and are commonly used by enterprises and governmental organisations. For mass messaging, short codes are preferred over a dedicated virtual number because of their higher throughput, and are great for time-sensitive campaigns and emergencies.[11]

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Grey Routing is a term given to messages that are sent to carriers (often offshore) that have low cost interconnect agreements with other carriers. Instead of sending the messages directly to the intended carrier, some bulk SMS providers send it to an offshore carrier, which will relay the message to the intended carrier. At the cost of consistency and reliability, this roundabout way is cheaper, and these routes can disappear without notice and are slower. Many carriers don’t like this type of routing, and will often block them with filters set up in their SMSCs.


The FCC implemented the Telephone Consumer Protection Act of 1991 (the “TCPA”) adopted rules, including prohibiting the initiation of telephone calls (other than a call made for emergency purposes or made with the prior express consent of the called party) using automatic telephone dialing systems or an artificial or prerecorded voice to telephone numbers assigned to a paging service, cellular telephone service, specialized mobile radio service, or other radio common carrier service, or any service for which the called party is charged for the call.
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