By Ben Tavener, Senior Contributing Reporter
RIO DE JANEIRO, BRAZIL – On Sunday all mobile numbers in São Paulo starting with "11" should now be dialed with an additional 9 before the regular number (+55) 11-9-XXXX-XXXX. This change increases capacity to a limit of ninety million numbers, from the current 44 million, according to ANATEL (Agência Nacional de Telecomunicações, National Telecoms Agency).
Eight-digit numbers will still be accepted for some time, but by mid-August calls will be intercepted with a message reminding users of the change, and by January . . .