Internet Service Providers  What is an ISP? + List ▷ 2020

Today, We will educate you with everything related to ISPs. But first we want to tell you that this, we offers an Internet service, giving us a good connection and wide coverage, where the connection is established through a modem.

Even though, not in all cases connections are established in the same way. These types of companies are mostly hired by companies, both large and small. Widely recommended due to its effectiveness and efficiency in the creation of networks and communication between the different points.

There are different types of ISP, which you can find later in this post. You will also see what are the differences in each of the ways to obtain an Internet connection.

What is an ISP and what are these types of companies for?

The ISP comes from acronym for Internet Service Provider (Internet Service Provider), is a company that offers internet access, for a monthly fee, in order to obtain it. It is necessary that we request a software package from the supplier, at that time a username with password is assigned and an access phone number.

INTERNET access in rural areas

Through a modem, although sometimes by the ISP, where we can enter the Internet and navigate through what we know as WWW (World Wide Web), the USENET, we send and receive a confirmation email and contract.

One of the characteristics of the ISP’s, is that it not only works with individuals, but also serve large companies, guaranteeing an excellent direct connection to the entity’s networks to the Internet, where they remain connected from one point to another by means of network access points or known in English as Network Access Points (NAPs).

What are the different types of connections used by Internet service providers?

We can find different technologies in ISPs that allow us to connect to their networks. As usual, The modalities that we are allowed to connect to the Internet are classified as follows:

  • A telephone access (Dial-Up)
  • It has access by ADSL (Asymmetric Digital Subscriber Line, Asymmetric Digital Subscriber Line)
  • Cable Modem Access (CATV: Community Antenna Television)
  • Provides access by Mobile Phone Network
    • UMTS (Universal Mobile Telecommunications System)
    • HSDPA (High Speed ​​Downlink Packet Access)
  • Wireless Access (850; 900; 1800 and 1900 MHz; 2.4 GHz and 5.0 GHz)
    • Wireless Personal Area Network (WPAN), wireless personal area network

    • Wireless Local Area Network (WLAN), wireless local area network

    • Wireless Metropolitan Area Network (WMAN), wireless metropolitan area network

      • WiMAX (Worldwide Interoperability for Microwave Access)
      • LMDS (Local Multipoint Distribution Service)
    • Wireless Wide Area Network (WWAN), wireless wide area network

      • UMTS
      • GPRS
      • EDGE
      • CDMA2000
      • GSM
      • CDPD
      • Mobitex
      • HSPA
      • 3G
      • 4G
      • 5G
    • Satellite access is available (DVB-S: Digital Video Broadcast – Satellital)
    • Access by Fiber Optic (FTTH: Fiber to the Home)
    • Also access by Electric Line (BPL: Broadband Power Line)

Connections for residential users

You will also find the typical connections for residential users:

  • Narrow band
    • Connection by switched line or dial-up
    • Integrated Services Digital Network (ISDN)
    • Modem
  • Broadband
  • Digital Subscriber Line (DSL), typically asymmetric or ADSL type
  • Mobile bandwidth
  • Wireless broadband (Wi-Fi)
  • Cable modem
  • Fiber To The Home (FTTH)

Connections for medium or large companies

Typical connections for medium or large companies are:

  • DSL
  • Ethernet, Metro Ethernet, or Gigabit Ethernet
  • Frame relay
  • ISDN
  • ATM
  • Satellite internet
  • Synchronous Optical Network yes (SONET)

ADSL vs FTTH vs Mobile Internet Which is better and faster?

In this section we will show you advantages and disadvantages that is in the ADSL, FTTH and mobile Internet connection, so you can see what are their differences and it is up to you which ones are better.

Advantages of ADSL

ADSL is considered as one of the preferred options For many of the users, when choosing a digital line to install Internet at home. Although this has been countered somewhat, due to the great competition that every day has.

Users when choosing, evaluate the price and speed of Internet connection, because they are the most important functions. The good thing is that ADSL can guarantee us a good opportunity regarding cost (ADSL is the cheapest in the market), so its rates are very tentative.

Finally we have the advantage, wide coverage, and this is due to its structure, and telephone line. Providing enormous coverage, we can request from anywhere in Spain the internet connection.

Coverage is another of the characteristics that many of the users evaluate, since not all have wide coverage. For example, fiber optics and 4G connection they have not arrived yet in some points of the Spanish geography.

Disadvantages of ADSL

We know that the aforementioned it’s very tentative, but unfortunately we have to mention that an excellent Internet connection speed cannot be appreciated for all parts of Spain, so we can say from this angle that It’s not the best option, because it only offers us 50Mbps, something that is insufficient for society, which is used to a 300Mbps connection up to 1GBps.

With a speed as offered by ADSL, activities such as watching cannot be carried out high quality videos, online RPG games, or any other similar. And it does not hurt to emphasize that there are factors that affect speed, so they can be experienced worsening in speed.

FTTH Advantages

As we know, fiber optics is a thread of glass or a molten material that transmits amounts of information at light pulse speeds so we will know from the first moment that speed is not something we should be concerned about.

Things that make a lot of difference fiber optics from other connections, is that it is prepared to support multiple connections, so if we connect many computers to the same network, no slowdown will be seen, nor network collapse.

Resistant to electromagnetic interference. Thanks to the fact that the fibers are not made of any metal, it can show resistance to any electromagnetic attack, which guarantees us a seamless connection.

Advantages of mobile Internet

Like the fiber optic connection, we can connect multiple devices to the same network, no matter if they are just computers, tablets, mobile phones or all of these together.

It’s called like that “Mobile Internet” for reasons such as that you do not need the help of a computer to be able to establish an internet connection.

You do not need to do any installation in terms of cables, routers or others. Besides that it is totally simple to configure, and use it even more.

Thanks to the fact that it is a mobile Internet connection, we can be connected to the network and be on the move at the same time, without having to present network drops, or carry cables with you.

Disadvantages of mobile internet

It does not show the same coverage on all sites in Spain, so we must consult in advance the connection according to our address or office.

Data transfer is much slower than fiber optic connection, making it a headache for the impatient. Another detail is that the modem can present overheating from continuous use.

As we saw, they all have different advantages that can tempt us to hire the services, however it is also necessary to understand what are the disadvantages, because not all parts of Spain have the same speeds.

If you think that your Internet connection is very slow, or is not fast enough for you, we invite you to do the Speed ​​test, so you can compare and see if it delivers what it promised.

List of the best Internet service providers in Spain

Next, we present the list of the most used and well-known Internet service providers in Spain, Although if you are outside of this territory you may know many of these brands because they are also internationally recognized:



The most recognized of all even internationally, “Movistar”. It offers a wide coverage, it can be said that much wider than all, since it reaches much more users than other operators.

Offer to your users a symmetrical 300 Mbps fiber, providing a totally reliable network, but the detail is that it may be a lot more expensive than other options. While Movistar charge € 60 or € 40, others charge less.



Vodafone it is an excellent option, which gives us a speed greater than 300 Mbps, which seems standard among its main Internet operators, also has a symmetric connection, offering the same upload speed as data download speed.

Although like Movistar its price can be considered a little high, but still worth paying. Offers an excellent internet connection for only 46.05 euros per month, including packages that integrate Internet with mobile and TV.



Jazztel is one of the operators with the largest weekly offers, so it makes a tough competition for other Internet providers. Works via ADSL so its function is very comfortable for most of its users.



Even though it is not well known as Movistar, is present in more than 10 million Spanish households, and its affiliates continue to grow every day. Its coverage is through fiber optics, and it is one of the fastest, offering a symmetric speed of 300 Mbps, both for uploading and downloading data. All for only 45 euros per month, including mobile Internet service and TV, as in the previous provider.



It is one of the largest operators, which we can see in this list, offering us a speed of 500 Mbps in downloading data and for uploading them a 300 Mbps transmission.



From this list is one of the internet providers more economical. Providing a service of 100 Mbps fiber optic (same upload and download speed), plus phone service for only 32 euros per month.

Although its speed is not the most attractive, as for saving yes, so there are users who turn to Yoigo.

If you have any questions, leave them in the comments, we will answer you as soon as possible, and it will surely be of great help to more members of the community. Thank you! 😉

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