SignalDip

Is O2 down?

O2 is up

Our latest checks reached O2 without trouble. If it is not working for you, the problem is probably on your side. Try the fixes below.

Report a problem with O2

O2 over the last 24 hours

We ran 27 checks in the last 24 hours and 0 failed. Uptime was 100% and the average response took 515 ms. Taller bars mean slower responses.

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23:00 UTCnow

O2 problems reported by visitors

No one has reported a O2 problem here in the last 24 hours. If you are having trouble, tell us what is going wrong.

23:00 UTC: 000:00 UTC: 001:00 UTC: 002:00 UTC: 003:00 UTC: 004:00 UTC: 005:00 UTC: 006:00 UTC: 007:00 UTC: 008:00 UTC: 009:00 UTC: 010:00 UTC: 011:00 UTC: 012:00 UTC: 013:00 UTC: 014:00 UTC: 015:00 UTC: 016:00 UTC: 017:00 UTC: 018:00 UTC: 019:00 UTC: 020:00 UTC: 021:00 UTC: 022:00 UTC: 0
  1. Home internet0%
  2. Mobile signal or data0%
  3. TV0%
  4. Calls or landline0%
  5. Account or app login0%
What is not working with O2?

O2 uptime, last 30 days

100% uptime across the 1 days we have on record.

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2026-09-05today

O2 not working? Try this

O2 provides mobile service.

Find out whether O2 knows about an outage at your address

  1. Open O2's official outage page (linked below) and enter your address or sign in.
  2. Look at the report chart on this page. A sudden jump in the last hour means other O2 customers are affected too.
  3. Ask a neighbour on O2, or check a second device, to see whether the problem is only yours.

No signal or no data on O2

  1. Switch airplane mode on for 10 seconds and off again. This forces the phone to register with the network from scratch.
  2. Restart the phone. If it shows "SOS" or "Emergency calls only", the SIM is not being accepted by the network.
  3. Calls work but data does not? Open Settings, turn mobile data off and on, and check the APN matches the one in O2's help pages.
  4. Try Wi-Fi calling if you have home internet. It keeps calls and texts working during a mast fault.
  5. Take the SIM out, wipe it and reseat it, or toggle the eSIM off and on in Settings.

Work out whether it is the internet or just your Wi-Fi

  1. Try a different app or website. If only one app fails, that app is down, not your provider.
  2. Test more than one device. One failing device points to that device.
  3. Turn off any VPN and try again.

O2 outage questions

Is O2 down right now?

The status at the top of this page is updated every few minutes from automated checks of O2's systems and from visitor reports. Our checks reach O2's website and sign-in servers, so a local line or mast fault in one neighbourhood shows up first in the report chart rather than in the checks.

How do I check for a O2 outage in my area?

Use O2's official outage page, which shows faults for your own address or postcode. Then compare with the reports on this page to see whether other customers are affected.

Why is my O2 internet slow but not down?

Slow data with full signal usually means a busy mast. Try again in a few minutes or move to a different spot. If it is slow everywhere all day, check your plan has not reached its data cap.

Does O2 pay compensation for outages?

Mobile networks are not part of Ofcom's automatic compensation scheme. If O2 stays down, ask for a goodwill credit, and if the complaint is not settled after eight weeks you can take it to the ombudsman scheme O2 belongs to.

How long do O2 outages usually last?

Most faults are cleared within a few hours. Damage to cables from storms or construction can take a day or more, because a crew has to repair the line by hand.