Fwd: Country Table Lookup
Andreas Fink <[email protected]>
| Newsgroups | gmane.comp.mobile.kannel.devel |
|---|---|
| Message-ID | <[email protected]> |
On Freitag, Dezember 27, 2002, at 07:45 Uhr, George C wrote: > no they are 3 digit country codes.. quite a few.. > cyprus +357 > > ok. this number.. how do i know its china or trinidad.. > +8681234567 > ok its trinidad cause it has the 3rd digit 8 > but how u code this and the logic.. > 1st sms get sent.. > then i neeed to appoint a charge to it.. > by looking up what coutry it belongs to.. and then addint the charge to > it... > > hmmm... im still baffled.. > > :) Country codes are defined by the ITU and they are listed there. Their length do vary. Most are 2-3 digits. USA and Canada share the +1 country code. However charges are not related to countries often but to carriers inside those countries. And even worse, you can often not determine what carrier a number is. Example: Switzerland is +41 There are 5 operators which have numbers in the mobile area. 3 of them have customers with GSM phones. Those numbers are: +41 79 Swisscom +41 78 Orange +41 76 Sunrise However, number portability applies so a lot of +41 79 numbers are now moved on to Orange and Sunrise and a few in the other direction. Also +41 79 9... contains some blocks of the two other virtual GSM operators (Togewa net and our Global Networks Inc) which do GSM/Mobile special services. So there's no way of knowing exactly to which operator a mobile is belonging. This situation also applies to many other countries where number portability is fully implemented (UK, Hongkong for example). There's a way to know exactly by looking it up in SS7 because when you do a SS7 number lookup, the answer will be a IMSI number and those are going to contain MCC (mobile country code) and MNC (mobile network code) which will give you the definitive answer to whom a specific SIM card belongs. We once where thinking of offering such a lookup service over HTTP to offer it to kannel users but there was no interest so we postponed the project. Andreas Fink Global Networks Switzerland AG ------------------------------------------------------------------ Tel: +41-61-6666333 Fax: +41-61-6666334 Mobile: +41-79-2457333 Global Networks, Inc. Clarastrasse 3, 4058 Basel, Switzerland Web: http://www.global-networks.ch/ [email protected] ------------------------------------------------------------------ Member of the GSM Association Andreas Fink Global Networks Switzerland AG ------------------------------------------------------------------ Tel: +41-61-6666333 Fax: +41-61-6666334 Mobile: +41-79-2457333 Global Networks, Inc. Clarastrasse 3, 4058 Basel, Switzerland Web: http://www.global-networks.ch/ [email protected] ------------------------------------------------------------------ Member of the GSM Association