O2 Ireland Customer Service Phone Number

Phone Number of O2 Ireland is 35361203501 .
O2 is an Ireland based telecommunication company. O2 was founded in 1985 by John Carrington. O2 Telecommunications corporation having its headquarter in Quay, Dublin, Ireland. The company deals in all kinds of communication services which also includes broadband internet. The company was founded by Esat Telecom Group. The telecom company is owned by Telefónica which is a financial services provider in the United Kingdom.
Valuable Contact Number of O2 Ireland for All General Inquiries
Phone: 35361203501
It is the second-largest mobile telecommunications provider in the United Kingdom and its headquarter is situated in Slough, UK. O2 is the second most significant telecoms supplier in Ireland, with approximately 40% business. As many as 1.6 million customers use O2 mobile network in Ireland. The organization provides WAP and GPRS solutions under the O2 Effective brand. O2 unveiled its special high speed internet delivering in Ireland utilizing HSDPA technological innovation over its 3G network. With its various telecom services and plans which gives more popularity than any other service provider in the country. All the plans and services stood far ahead of customer's satisfaction and attained notable position in Ireland telecom industry. The company for its satisfactory customer service it established many customer care centers in all across Ireland. The centers tries to solve any kind of mobile connectivity related issues and hears any kind of complaints and welcomes feedback from the customers. The company also deals in contract based mobile connections in which customers choose any handset with O2 mobile connectivity which is signed for a fixed and definite period of time. The company has been very successful in attracting attracts many customers with this service, for more support dial: 35361203501

O2 Ireland Address

The address of O2 Ireland is 28-29 Sir John Rogerson's Quay, Dublin 2, Ireland.

O2 Ireland Website

The Website of O2 Ireland is www.o2.co.ie.

O2 Ireland Customer Support Service Phone Number

The customer support phone number of O2 Ireland is 35361203501 (Click phone number to call).


The postal and official address, email address and phone number (helpline) of O2 Ireland Service Center and O2 Ireland customer service phone number is given below. The helpline of O2 Ireland customer service phone number may or may not be toll free.

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O2 Ireland Phone Number Customer Service

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O2 Ireland Customer Service Number Delineated Here With Complaints and Reviews

Customer care male
Mr. Ibitoye Olayinka John CallsJul 04, 2018

Hi. Please I need O2 Ireland number in Nigeria. How much will it cost me to get that?


Customer care male
Mr. Ed Morrissey CallsJun 13, 2016

Mr. Ed Morrissey On Phone To O2 Ireland Service
My number when I was with you was 0867770712 Ed Morrissey . I ended my contract with you and went on to pay as you go as I was moving country and just wanted to keep that phone going for awhile in case people from Ireland didn't have my new contact details. When I chose to go pay as you go I had to clear any outstanding balance which I did. I have just received a letter from a dept collecting agency acting on your behalf looking for the sum of €141. 66. This is not possible as I haven't been on bill pay with you for almost a year now. Could you please investigate this and get back to me ASAP.

Customer care female
Ms. Elizabeth Otuadinma CallsMar 17, 2016

Ms. Elizabeth Otuadinma On Phone To O2 Ireland Service
What can I do, I have block my SIM because I enter wrong pin number three time now is asking for punk code which I do not remember again. Please I need your urgent assistant because I have and other means of communication. Regards

Elizabeth Otuadinma .

Customer care male
Mr. Hasse Nielsen CallsMar 11, 2016

Dear Sir/Madam. I`m living in Denmark, but also have a mobile connected to O2 Ireland, wich I use when visiting Family in Ireland. I have now transfered the simcard to a Nokia phone, but it will not accept the puk and pin code? Is it possible you could send a new simcard to me? My account is pay and go/top up. The phone number is: 860740328.

Customer care male
Mr. Jim Gray CallsJan 08, 2016

Mr. Jim Gray On Phone To O2 Ireland Service
I have an 02 ireland Lumia 820, i want to use it in the uk, but it will not accept an 02 ireland SIM card, can you unlock it?.

Customer care female
Ms. Valerie Stevenson CallsNov 30, 2015

Ms. Valerie Stevenson On Phone To O2 Ireland Service
I have been texting with your personnel. (my number is 0863765216. Most unsatisfactory. ` I have only just added the internet to my bill. Now I can not use it says you have won a prize click (it's from mymobileservices.com. I can not get past it to any other page. All your agent says is change your password. Don't know how. Now I will have to turn off my phone until I can get to one of your shops. Valerie Why on earth do I have to tell you which gender I am?.

Customer care male
Mr. Fredrick Uche CallsApr 20, 2015

I have an Iphone four phone that was locked to O2 Ireland, but I want to use it in Nigeria, so how can I open it to other network. Please let me know.

Customer care male
Mr. Fredrick Uche CallsApr 20, 2015

Mr. Fredrick Uche On Phone To O2 Ireland Service
I have an iPhone four phone that is lock by 02 in Ireland, but I want to use the phone in Nigeria, but it cannot work with another sim.

Customer care female
Ms. Deirdre O'byrne CallsApr 09, 2015

Ms. Deirdre O'byrne On Phone To O2 Ireland Service
I am in Rathrush, Rathoe, County Carlow. The 02 reception on my mobile keeps disappearing, even though I have used it here previously. My number is (0044) 07510 891480. Why do you want to know what gender I am? .

Customer care user complaints