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Analog telephone and ADSL blackout

In 2017, 68 plants have already been closed, but by 2020 they will not be closed


Spain is the country with the most fiber optic kilometers in the European Union, and in the second quarter of 2016 there were already 27 million fiber optic lines (FTTH) contracted in Spain. The unstoppable process of fiber optic deployment is associated with the closure of ADSL plants in our country so that operators do not assume the cost of maintaining the two infrastructures . The initial plans of the operators a few years ago was to offer fiber optic in all Spanish municipalities with populations of more than 1,000 inhabitants for the year 2020.

Already 20 plants have been closed

The process of closing plants began in 2014, and has continued to increase gradually in 2015 and 2016. As the CNMC has gathered, there are already 20 plants that have closed in Spain until January 2017 , and this Another 48 will be closed this year, making a total of 68 ADSL plants closed at the end of 2017. This increase is in line with the increase in fiber users, which in the case of Movistar are already more than those with ADSL.

The closure of ADSL plants is the responsibility of Telefónica, and it is the CNMC that ensures that this does not adversely affect alternative operators. In order to approve the closure of a plant, it is necessary that 25% of the customers already have fiber and be notified one year and a half in advance, or five and a half years if there are other operators. The power plants do not have to close as such, but simply the copper connection is eliminated and only the FTTH infrastructure is maintained, and it can also be converted into a central office to manage mobile telephony antennas.

In Spain there are currently 6,500 central buildings . The CNMC communicates the closing data of these to the operators, and from now on these data will also be public so that users can know in which areas these plants will be closed, and can be passed to optical fiber in the event that your operator has not communicated it to you or they have not decided to stay with ADSL. This data is compiled in this link .

The closure of 88 plants is already confirmed and planned

As we can see, the provinces where more centrals have been closed and will be closed (or transformed) are the Balearic Islands, Barcelona, La Coruña, León, Madrid, Murcia, Soria, Tarragona, Valladolid and Zaragoza, among others. In 2018 there will be a total of 73 plants that are currently confirmed to be closed, extending to 88 in the year 2022 , although new ones will be added to the planning as the deployment progresses.


Seeing that there are planned closures for the year 2022 (dates that coincide with the five and a half years with which Movistar has to notify if there are other operators) in a large city in Spain such as Seville makes us see that the initial plans to close all ADSL plants in populations of more than 1,000 will be delayed for a few years. For the moment, the current planning means that by 2020 two thirds of the plants (just over 4,300) are only fiber , and the other 2,200 continue to support copper.

End of preselection prefixes

As of July 17, 2017, Telefónica de España will discontinue the line pre-selection service and the acceptance of dialing prefixes to make calls through other different operators.

This will affect all those switchboards with analog RTB or ISDN lines (Basic and Primary Accesses), which are pre-selected with an alternative voice operator other than Telefónica / Movistar and also for those cases in which prefixes of other operators are dialed.

It is understood that there will be the possibility of carrying the telephone numbers, however, since the accesses are still from Telefónica / Movistar, it will not provide these service lines such as call-jumping groups, etc .; consequently, portability (except for a single line and without associated services), will not be a valid option for those users that have PBXs with several RTB lines or with 1 or more ISDN accesses.

You can consult more information published in the Official State Gazette at the following link:

Information in the BOE
From Micgrup Telecomunicacions, we advise all those companies that still use analog telephone lines and / or ISDN to contact us to request more information and advice about alternative solutions in this situation.

Contact us by clicking here if you want us to advise you without obligation

Source: adslzone.net