From APN Changer and Data Sim Guide
 Cellular Operators
Vodafone Ireland Limited, part of the Vodafone Group, is the largest mobile phone company in Ireland in terms of active subscribers, and was previously called Eircell.
- username: dublin
- password: dublin
- APN name: live.vodafone.ie
Meteor 3G network already available to 33% of the Irish population (this includes the four cities of Dublin, Cork, limerick, Galway and other regional centres). They also offer GPRS (2.5G) and EDGE (2.75G) services.
- username: my
- password: meteor
- APN name: data.mymeteor.ie
 3 IRL
- Internet APN 3ireland.ie Connects your mobile to the Three network for web, email etc
- Browser homepage http://mobile.3ireland.ie/hb/singleurl Gives you Planet 3 and quick access to top mobile internet sites like Twitter and Facebook
- MMS APN 3ireland.ie For sending and receiving picture and video messages (MMS)
- MMSC proxy address mms.3ireland.ie For sending and receiving picture and video messages (MMS)
- MMSC proxy port 8799 For sending and receiving picture and video messages (MMS)
- MMSC http://mms.um.3ireland.ie:10021/mmsc For sending and receiving picture and video messages (MMS)
- SMSC Address +353830000800 For sending and receiving text messages
 Prepaid plans
 3 IRL
- Calls & Mobile internet******
Prepaid Top-ups are available from €5 in most supermarkets, Newsagents and Petrol stations. All of Three's price plans for new & existing Three customers include free 4G for life.
"3LikeHome" is available on the 3 network in the following countries: - For Pay Monthly customers: the UK, Italy, Austria, Denmark, Sweden and Hong Kong. - For FlexiFix customers: the UK, Italy, Austria, Denmark and Sweden. - For Pay as you go customers: the UK, Italy, Austria, Denmark and Sweden.
With this, bundle call/text/data allowances are used first, then charges will apply.
 Where to buy
 Sim Sizes
All SIM card sizes are available.
 VoIP applications
 Restaurants, hotels and other recommendation applications
 Social Networking applications
 Special Travel applications
 Wi Fi Networks
 APN settings AT&T
- Port: 80
- Proxy: proxy.mvno.H2OMobileweb.com /188.8.131.52
- APN: att.mvno
- WAP Homepage URL: http://www.H2OMweb.com
- MMSC: http://mmsc.cingular.com