La cláusula de permanencia no bloquea la portabilidad móvil.

In Spain, cláusula de permanencia is a very common telecom/contract term. It refers to a minimum-stay or minimum-term clause in a contract.

For example, if you sign up for a phone plan with a discount or a subsidised device, the company may require you to stay for a certain number of months. That requirement is the cláusula de permanencia.

So this phrase is more specific than just contract clause. It usually suggests a clause that ties the customer to the service for a period of time.

Because both nouns are feminine singular:

• la cláusula
• la portabilidad

In Spanish, the article must agree with the noun in gender and number.

Here the sentence has:

• La cláusula de permanencia = the minimum-term clause
• la portabilidad móvil = mobile number portability

Because de + noun is often used in Spanish to classify or describe the type of thing.

So cláusula de permanencia means something like:

• a permanence clause
• a minimum-term clause
• a clause about staying in the contract

There is no article because permanencia is being used in a general, classifying way, not to refer to one specific permanence.

Compare:

• una cláusula de permanencia = a minimum-term clause
• la cláusula de la permanencia = sounds like a specific clause of some specific permanence, which is not the normal expression here

Because the subject is singular:

• La cláusula = singular
• de permanencia only describes cláusula

So the whole subject is La cláusula de permanencia, and its main noun is singular. That is why the verb is:

• bloquea = it blocks / does not block

Not bloquean, which would be plural.

Bloquea is the 3rd person singular present indicative of bloquear.

• bloquear = to block
• bloquea = he/she/it blocks

In this sentence it means it does not block.

Spanish often uses the present tense for:

• general facts
• rules
• official statements
• policy explanations

So this sounds very natural in a legal, customer-service, or informational context.

That is the normal way to negate a statement in Spanish:

• bloquea = blocks
• no bloquea = does not block

So the basic pattern is:

• Subject + no + verb + object

Here:

• La cláusula de permanencia
  • no
    • bloquea
      • la portabilidad móvil

Here móvil is an adjective modifying portabilidad.

So:

• portabilidad móvil = mobile portability, meaning mobile number portability

In Spain, móvil can also be a noun meaning mobile phone:

• Mi móvil = my mobile phone

But in this sentence it is not a noun. It is describing what kind of portability we are talking about.

Because that would mean something quite different.

• la portabilidad móvil = mobile number portability, a telecom service term
• la portabilidad del móvil = the portability of the mobile phone

The second version sounds like you are talking about whether the physical phone is portable, which is not the intended meaning.

In Spain, portabilidad móvil is a fixed industry expression. It refers to changing operator while keeping your number.

Yes, in many contexts you could say:

• La cláusula de permanencia no impide la portabilidad móvil.

That would also be natural.

The difference is mostly nuance:

• bloquear = to block, stop, obstruct
• impedir = to prevent

In legal or customer-service language, both can work. Bloquea may sound a bit more like it does not stop the process, while impide is more directly it does not prevent it.

No, it is very standard and neutral:

• Subject: La cláusula de permanencia
• Verb: no bloquea
• Object: la portabilidad móvil

This is the most natural order for a clear statement.

Spanish word order can be changed for emphasis, but this version is the most straightforward, especially in formal or informative language.

Yes, it sounds neutral to formal. It fits well in:

• contracts
• telecom FAQs
• legal explanations
• customer support pages
• official notices

A casual speaker would usually not say the whole sentence unless discussing a contract or phone-company rules.

The accent marks show the stressed syllable:

• cláusula → stress on cláu
• móvil → stress on mó

They are required by Spanish spelling rules.

They also help distinguish the correct pronunciation:

• cláusula ≈ KLAU-su-la
• móvil ≈ MO-vil

Without the accent marks, the reader might expect the stress in a different place.

Bloquea is pronounced roughly blo-KE-a.

A few useful points:

• qu before e or i sounds like a hard k
• the u in que is normally silent
• so bloquea is not blo-kwe-a
• it is more like blo-ke-a

Also, the ending -ea is pronounced in separate vowel sounds, not as one English-style sound.

Yes. In the right context, Spanish speakers often just say la portabilidad if it is already clear they are talking about phone numbers or telecom service.

But adding móvil makes it more specific. It helps distinguish it from other kinds of portability, such as fixed-line portability.

So:

• la portabilidad = portability
• la portabilidad móvil = mobile number portability specifically