There is full number portability between networks so it's hard to tell which network a particular number is on. If you're calling mobile to mobile, you get a short "Beep" before the call connects to warn you that the number is on another network as higher charges may apply.
Country Code: +353 GSM/3GSM Mobile prefixes: 83,84,85,86,87 - Paging: prefix: 82 Non-geographic "national rate numbers: 81 (all of the above would be followed by a 7 digit number)
To directly access a mobile voicemail box:
+353 8X 5 XXX XXXX
+353 88 XXX XXXX was the analogue ETACS service and has not been in use for several years.
[OT] Geographic numbers (normal fixed lines) are allocated in a fairly logical hierarchical area code system.
First the country's divided into 7 large areas:
Dublin - 01 Cork - 02 Eastern Area (Excluding Dublin) - 04 Southeast - 05 Southwest and Midwest: 06 Northwest - 07 West - 09
These are then subdivided into smaller area codes, the main town/city in each area being "1" e.g. Galway City = 091... a small town in the 09 area might be 097.
Local number lenghts vary.. and are either 5,6 or 7 digits long depending on population. However, that's gradually being changed and numbers are gradually becoming a uniform 7 digits long.
The phone system never made much use of step-by-step switching and was largely crossbar switched in the old days, which allowed greater flexibility in terms of number length.
From the late 1970s it rapidly moved to digital technology, which also had no problem handling varying number lengths.
... If calling from outside Ireland geographical numbers look like:
With regard to North America, it's not so simple, because cellphones are not assigned their own "area" codes as in Europe, e.g. the 212 area code serves both landlines and cellphones in Manhattan (and American area codes evolved on rather different lines than in Europe anyway, but that's another story!).
American/Canadian cellphones are assigned exchange prefixes within their own local area code, so you need to look at all six digits (area code plus 3-digit exchange prefix) to identify a cellphone number.
One of the main reasons for wanting identify cellphone numbers this side of the Atlantic is the high cost of calling them, and that problem doesn't exist in North America, where it costs the caller no more to call a cellphone than to call a landline in the same location. My apologies if I'm stating the obvious, but a lot of people over here don't realize there is a difference in the charging arrangements.
If you really need to find North American assignments, go to the "Numbering resources" section of the North American Numbering Plan administration. From there you can search any given NPA for all the exchange prefixes assigned.
#159660 - 01/12/0506:10 AMRe: International cell phone codes
Unfortunately, you cannot reliably identify which network operator is associated with which number anymore. This is because, to increase competition numbers were made fully portable between networks. So, you can change network operator and keep your number.
The number portability system here works pretty well. Anyone can change network, including pre-pay customers, and the process typically only takes between 10 and 30 mins and has proven to be extremely popular.
All you can tell is that if an Irish number starts with 83,84,85,86 or 87 that it is a Mobile.
As for the costs:
The networks are all very compeditive, so it would be impossible to say that one was cheaper than the other as it would depend very much on your pattern of usage.
Vodafone and O2 are the dominant players with more than 80% of the market divided equally between the two networks.
Meteor's small but very agressivly taking customers at the moment.
and "3" is a fully 3G network and is only in the early stages of rollout here.
[This message has been edited by djk (edited 01-12-2005).]
#159664 - 01/12/0509:09 AMRe: International cell phone codes