I’ve just had an email from the automated billing service for the telephone service provider that provides the UK and US numbers for SMS spotting. Whilst putting some more cash into the meter I grabbed a few statistics.
In the last six months there have been 4096 inbound SMS numbers from SOTA activators. I haven’t looked at the data for a good while and was astonished to see around 750 SMS spots a month nowadays. What started as a bit of fun has grown somewhat huge over the years. 4 years ago the figure for the same period (but only 1 number) was 1452 inbound SMS.
4096 inbound messages cost 4096 * $0.0075 = $30.72 and rental of 2 numbers for 6 months adds another $12 making a grand total $42.72. Or an estimated running cost of $86 / year. (All figures US dollars).