
01
How much does an SMS short code cost?
The registry price is the simple part. A code costs $500 or $1,000 a month to lease, and the bill for actually sending texts through it arrives separately.
Section 1 of 3
The groundwork, for people who receive short code texts and people who send them.
5 answers, 2016
The starting point is what an SMS short code is: a number of five or six digits that carries texts for a business or organization, and how it differs from an ordinary ten-digit number. SMS keywords explains the words people text to a code to join or leave a program, including reserved ones such as STOP and HELP.
Two pages are mainly for senders. One sets out what leasing a short code cost in 2016, for a random number and for a chosen one. The other describes the Short Code Registry, which assigns the numbers and keeps track of who holds them.
The last is for the receiving end: why a phone may never get short code messages, and what can be checked with a carrier. Every page here is dated 2016 and describes that year.

01
The registry price is the simple part. A code costs $500 or $1,000 a month to lease, and the bill for actually sending texts through it arrives separately.

02
Every five- and six-digit texting number in the United States comes out of one database. The wireless industry owns it, and since January a new contractor has kept it running.

03
Every short code program listens for words. Some of them sign a phone up, some fetch a single answer, and a handful are reserved by the industry for the subscriber's protection.

04
The five- and six-digit numbers behind bank alerts, delivery updates and text donations are leased, approved by every carrier, and built for volume that an ordinary phone line is not.

05
When a verification code or alert never shows up, the fault sits in one of three places: the phone, the phone account, or the program sending the texts. A few minutes of testing tells them apart.