iphone backdoor?

Hi. While testing I've got iphone (non-jailbroken) which regularly attempts to send following sms to number 447537410247 (uk?): REG-REQ?v=3;t=C335D183C5A2FC0E2501543EBCEB8263D55683FB63A2E8CAF98B8874D940263F;r=165209558 without asking user for anything. Is this some sort of Apple's backdoor? Or GCHQ is so bored that they are trying to spy on me? :) Have you guys seen this before? -- Max Suraev <msuraev(a)sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Director: Harald Welte