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FAQs

• What’s the difference between Long Codes and Short Codes?

  The main difference between these two sender types is how they’re intended to be used. Long Codes were designed to support P2P (Person to Person) messages – with a relatively low throughput of messages. Short Codes (SC) were designed to support A2P (Application to Person) bulk, higher throughput messaging – this a preapproved route, which eliminates filtering.
  
  Over time, demand for and use of messaging channels has changed. A2P messages are being sent on Long Codes, and some Short Code based campaigns support P2P like experiences with the application only hosting the consent and communication experience. The carriers have stepped in to get better control of the traffic on their networks in effort to increase security and deliverability.

• Do I need a Long Number or Short Code?

  For most countries, you will only need a Long Number or a Short Code if you wish to engage in two-way interactions with your customers. If you do not wish to engage in a two-way dialogue then in most countries you can simply set the Sender ID (Originator) to something alphanumeric using your brand name e.g. ‘Sinch’.
  
  In some countries however, notably the USA and Canada, a Short Code or Toll-Free Number is required regardless of whether you want to engage in a two-way dialogue, as alphanumeric SenderID’s are not supported. For more information about which countries require a Short Code or Long Number please contact your Account Manager.

• What is a 10DLC?

  10DLC is the acronym assigned to the carrier sanctioned long code traffic. It stands for 10 Digit Long Code, often referred to as a Long Number.