http://www.txtimpact.com/shared-shortcode.asp Dedicated short codes are expensive; it cost you $1000-$1500 per month to own it. If you are running a campaign on a shared short code, you can get started in as low as $49 a month and start collecting mobile numbers in a minute and broadcast messages. Provisioning a dedicated Short Code takes substantial time, technical expertise, and an ongoing financial commitment. Txtimpact's Shared Short Code System removes many of these barriers to entry in text message marketing field by allowing customers to run applications and services on txtimpact pre-provisioned Short Codes at a fraction of the cost of setting up a dedicated Short Code and intercarrier connection. Txtimpact messaging platform employs an intelligent keyword-routing system and secure HTTP API that allows customers to both send and receive SMS messages with the speed and reliability of direct intercarrier connections. Advanced features include the ability to automatically handle opt-in/out requirements, create sub-keyword routing, and establish "sticky sessions" with wireless subscribers What is keyword? Keywords allow your customers to interact with your services, to receive on demand information, e.g business locations, todays specials, on demand coupons, or join mailing list, etc. A Keyword is a short word identifies your campaigns. For example: 'Text Club to 27126 to receive weekly specials.'; 'Club' is a keyword in this case. Shared short codes are wonderful for the small business with the small budget or for the enterprise that wants to run POC. These businesses can get into the market quickly, and for not a lot of money. However, if you a well-known brand in your space, you definitely want to consider a dedicated code. •Check Keyword availability •Ready-2-use mobile marketing applications •SMS Gateway APIs: Allow to send and receive message from your web server •Pricing •What Next: Signup online and start implementing mobile messaging & mobile marketing solutions