The numbers for mobiles are standardized in Ireland, and because of this fact, it becomes pretty easy to understand the structure that the number would contain. Mobile phone number standard length in Ireland:
The number is 10 digits long and included the mobile prefix as well as the local number.
Format of the Mobile Number
The normal format of the mobile number is:
08x xxxx xxxx
Where:
The first two digits "08" indicate that this is a mobile Ireland Phone Number Data number. The next digit after "08" is assigned to different mobile operators, and in combination, they determine the mobile network. For example:
087 - Vodafone
086 - Three
089 - Eir
The remaining seven digits form the local part of the number, which can take several lengths, but always have been included in the 10-digit total.
Mobile Number Prefixes
The first "08" prefix is reserved for mobile numbers, and each mobile network has specific prefixes within that range. Here are some of the most common ones in Ireland:
These prefixes help identify the service provider of the number; however, this is dispelled by the fact that mobile number portability allows users to change carriers without changing their phone number. Thus, even as the prefix could indicate the original carrier, it may not actually reflect the current provider.
International Format
To call Irish mobile numbers from outside Ireland, the international format should be used, which includes the country code +353. In this case, it drops the leading "0" of the mobile prefix; the format shall look as stated below:
With the MNP in Ireland, people can retain their phone numbers while changing their mobile operators. That is to say, although commonly attached to a particular operator, the prefixes do not necessarily show which network the mobile number is using at this time.
Conclusion
The fully subscribed length of a mobile phone number is usually 10 digits: it generally includes the "08" prefix plus a seven-figure local number. There are prefixes reserved for mobile phones, but in practice, number portability means users can change operators and keep their original number.