Under no circumstances should the sequence “911” be used, or any other sequence which might cause confusion with the national emergency services number, 911, such as *911, #911, etc. Dialling procedures The dialling procedures for calls to special service codes are as follows: Special service codes 3 digits Established special service codes The established special service codes are as follows: Code assigned Special service Special service provider 010- 019 Available 020 Operator call assistance service Telecommunication service providers 021-029 Available 030 Exact time Telecommunication service providers 031 Alarm clock Telecommunication service providers 032-039 Available 040 Information on national telephone numbers Telecommunication service providers 041-049 Available 050 Complaint reception and processing Telecommunication service providers 051 Generation of PINs Telecommunication service providers 052-069 Available 070 Community information Government entities 071 Electricity services Government entities 072 Public service reports and complaints Government entities 073 Drinking water and sewage system Government entities 074 Traffic information Government entities 075 Guidance and support for personal safety Government entities 076 Available 077 Federal entity and election bodies Government entities 078 Tourist information Government entities 079 Available 080-087 Available 088 Federal public security services Government entities 089 Whistle-blowing service Government entities 090 International long-distance service via operator Telecommunication service providers 091-099 Available
The amended Long-Distance Rules that entered into force on 14 April 2006 established the “national calling party pays” mode for national and international calls. • National calls: licence-holders in the fixed or mobile service have to adapt their networks so that their users obtain access to the long-distance service in respect of calls to users in the local mobile service under the “national calling party pays” mode by dialling the following sequence: 045 + national number Licence-holders having obtained authorization from the defunct Commission or the Institute to offer their users the optional ten-digit dialling procedure for calls to subscriber numbers, local calls to destinations using the “calling party pays” mode, and long-distance national calls have to offer the ten-digit optional dialling procedure for long-distance calls to destinations using the “national calling party pays” mode, i.e. their users shall not have to dial the prefix “045”. • International calls: operators of international ports have to adapt their networks with a view to enabling calls originating abroad and having as their destination users in the local mobile service in Mexico using the “national calling party pays” mode to be made by dialling the following sequence: + 52 + 1 + national number Structure of non-geographic numbers Non-geographic numbers are structured as follows: Non-geographic service key User number A0N d e f g h i j Where: A <> 0 and N = 0, 1, ..., 9 The nine non-geographic service keys starting with the same digit A are reserved for expanding the service. The exception to the generic key A 0 N is 888, an extension of the key 800, for reverse charging in Mexico. National non-geographic services are allocated the following keys: Non-geographic service key Description 200 Mobile or fixed satellite telephone service with payment at the point of origin (geostationary systems) 201 Mobile or fixed satellite telephone service with payment at the point of origin (low-altitude systems) 300 Services with charges shared between the points of origin and destination 500 Personal numbers with call transfer 700 (*) Access numbers for each operator’s virtual private network and other value-added services 800 Non-geographic numbers with reverse charging 888 Non-geographic numbers with reverse charging 900 Non-geographic numbers with surcharge for the service provided (*) The non-geographic numbers corresponding to this service shall be independently administered by each operator. Groups of codes for special services