Terms and definitions in messaging

Multichannel messaging service is based on a variety of telecommunication and Internet technologies. In the description of services, we often use abbreviations that may not always be known to you. Here we have compiled a glossary of terms and definitions used in the industry.

Sender ID

The originator of an SMS is the label describing who or where an SMS is sent from. The most common originator is a mobile number (MSISDN), as this is what is displayed when an SMS is sent from a mobile handset.

The SMS originator field is also called:

  • OA
  • Originating Address
  • Sender ID
  • Label
  • Source Address
  • Source
  • Tag
  • From Address

Different types of originator are described in the following table:

Type NameExampleRestrictionsTONNPI
International Numeric+447973000000Max. 16 digits11
National Numeric07973000000Max. 16 digits00
AlphanumericMessaggio123Max. 11 characters50
Shortcode80500Same as National Numeric2, 5 or 00