Ο πάροχος κινητής τηλεφωνίας προσφέρει καρτοκινητή τηλεφωνία.

Because πάροχος is a masculine singular noun, so it takes the masculine singular definite article ο in the nominative case.

• ο πάροχος = the provider
• If it were feminine, you would expect η
• If it were neuter, you would expect το

Here, ο πάροχος is the subject of the sentence, so nominative is the normal case.

Πάροχος means provider. In everyday modern Greek, it is often used for a company or service provider, especially in fields like:

• πάροχος internet = internet provider
• πάροχος ηλεκτρικής ενέργειας = electricity provider
• πάροχος κινητής τηλεφωνίας = mobile phone provider / mobile network provider

So in this sentence, it refers to a company that provides mobile phone services.

Because they form a genitive phrase after πάροχος.

Greek often expresses provider of X by using:

• πάροχος + genitive

So:

• κινητή τηλεφωνία = mobile telephony / mobile phone service
• κινητής τηλεφωνίας = of mobile telephony

Both words change because the adjective and noun must agree:

• κινητή → κινητής
• τηλεφωνία → τηλεφωνίας

So πάροχος κινητής τηλεφωνίας literally means provider of mobile telephony.

Because Greek often uses the genitive case where English uses of.

English:

• provider of mobile telephony

Greek:

• πάροχος κινητής τηλεφωνίας

There is no separate word meaning of in this phrase. The genitive endings do that job.

This is a very common pattern in Greek, and it is one of the big differences from English.

The base form is:

• κινητή τηλεφωνία

This is the dictionary-style nominative form, meaning mobile telephony or mobile phone service.

In the sentence, it becomes:

• κινητής τηλεφωνίας

because it depends on πάροχος and therefore goes into the genitive.

So you can think of it like this:

• κινητή τηλεφωνία = mobile telephony
• πάροχος κινητής τηλεφωνίας = provider of mobile telephony

Grammatically, καρτοκινητή τηλεφωνία is the direct object of προσφέρει.

The structure is:

• Ο πάροχος κινητής τηλεφωνίας = the mobile provider
• προσφέρει = offers
• καρτοκινητή τηλεφωνία = prepaid mobile service / prepaid mobile telephony

So the provider is offering that service.

Also, note that τηλεφωνία is a feminine noun, and καρτοκινητή agrees with it.

Because for many feminine nouns in -ία, the nominative and accusative singular look the same.

So:

• nominative: η τηλεφωνία
• accusative: την τηλεφωνία

The noun changes only through the article, not through a different noun ending.

The same is true here for the adjective:

• nominative: καρτοκινητή τηλεφωνία
• accusative: καρτοκινητή τηλεφωνία

Since there is no article before it in this sentence, the phrase looks exactly like the nominative form, even though it is functioning as the object.

Because Greek, like English, does not always need a definite article before a noun.

Here, the sentence is talking about the type of service being offered, not necessarily the specific prepaid mobile service. So the noun phrase is used more generally.

Compare:

• προσφέρει καρτοκινητή τηλεφωνία = offers prepaid mobile service
• προσφέρει την καρτοκινητή τηλεφωνία = offers the prepaid mobile service

The version without the article sounds more general and natural in this kind of statement.

Καρτοκινητή refers to prepaid mobile service.

It comes from the idea of a mobile phone service connected with a card or prepaid top-up system. In practice, καρτοκινητή τηλεφωνία means prepaid mobile telephony or pay-as-you-go mobile service.

This contrasts with contract-based service, which might be described differently, for example:

• συμβόλαιο = contract
• κινητό με συμβόλαιο = mobile plan with a contract

So καρτοκινητή is a very useful real-world vocabulary item.

Προσφέρει is the 3rd person singular present tense of προσφέρω.

So:

• προσφέρω = I offer
• προσφέρεις = you offer
• προσφέρει = he/she/it offers

Since the subject is Ο πάροχος (the provider), which is singular, the verb must also be singular:

• Ο πάροχος ... προσφέρει = The provider offers

The word order is quite normal and straightforward.

• Ο πάροχος κινητής τηλεφωνίας = subject
• προσφέρει = verb
• καρτοκινητή τηλεφωνία = object

So it follows a familiar subject–verb–object pattern.

Greek word order is often more flexible than English, but this sentence uses a very standard order. That makes it easier for learners to recognize the structure.

Yes, often you could, depending on context.

• εταιρεία κινητής τηλεφωνίας = mobile phone company
• πάροχος κινητής τηλεφωνίας = mobile service provider / mobile network provider

They are close, but not always identical in nuance:

• εταιρεία emphasizes the company
• πάροχος emphasizes the role as a provider of services

In many practical situations, both are possible, but πάροχος is especially common in business, telecom, and service-provider language.

A rough pronunciation guide is:

O PÁ-ro-hos ki-ni-TÍS ti-le-fo-NÍ-as pros-FÉ-ri kar-to-ki-ni-TÍ ti-le-fo-NÍ-a.

A few helpful notes:

• χ in πάροχος is like the ch in German Bach or Scottish loch
• γγ, γκ, γχ can be tricky in Greek, but this sentence does not contain those
• The stressed syllables are important:
  • πάροχος
  • κινητής
  • τηλεφωνίας
  • προσφέρει
  • καρτοκινητή

Paying attention to the written accents will help you sound much more natural.

A very useful pattern here is:

• [noun] + genitive to mean [noun] of ...

For example:

• πάροχος κινητής τηλεφωνίας = provider of mobile telephony
• κέντρο υγείας = health center
• υπουργός παιδείας = minister of education

Another useful pattern is:

• subject + verb + service/product

So this sentence is good practice for:

1. recognizing the genitive
2. seeing adjective-noun agreement
3. understanding a common business/telecom style of Greek expression