Last updated: November 9, 2026
Is Docomo down? User reports indicate possible problems with Docomo
Docomo is a popular choice for people who want reliable service. Check the live outage reports below to see if Docomo is having problems right now.
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Docomo problems reported in the last 24 hours
Most reported problems
All quiet. No issues reported in the last 24 hours.
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Most reported locations
Where Docomo reports are coming from in the last 24 hours.
No problem locations to show yet. Docomo looks fine right now. Locations appear here as soon as users submit reports.
Latest Docomo user reports
No reports yet — be the first to report a problem above.
Docomo outage history
The biggest Docomo outages on record, plus our latest check.
- 2 January 2025. About 11 hours. Users could not open the portal, streaming, payment and webmail services after a cyberattack flooded the network.
- 14 October 2021. About 29 hours. Millions of mobile users across Japan lost voice calls and data service while engineers restored the network.
✓ Our latest check (7 November 2026, 5:01 PM PKT): docomo.ne.jp answered normally in 889 ms.
Good news. Docomo has no reported problems right now. If it is not working for you, report it above and your report will appear here.
Docomo uptime and reports
Live report counts and the day by day record for the last 30 days.
User reports received in each period.
Last 30 days, day by day: 11 October 2026 to 9 November 2026
Green: up. Red: outage. Amber: some checks failed. Grey: no record yet.
The daily record builds from today as our checks run. Grey days have no saved record yet. A red day marks a confirmed outage.
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Leave your email and we will tell you when Docomo is having problems. One email per outage, no spam.
Docomo on social media
An early signal from outside our site, watched in rotation.
Posts on Bluesky saying Docomo is down. Checked 7 November 2026, 11:31 PM PKT.
Quiet right now. Nobody on Bluesky is saying Docomo is down.
Guides that can fix it
Step by step fixes for the problems people report most.
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Is Docomo Down Right Now?
Docomo’s mobile network is running right now. If your phone shows no signal, check whether the trouble is local to your area or part of a wider Docomo outage on the chart above.
NTT Docomo is Japan’s largest mobile carrier, with tens of millions of subscribers. It runs the country’s 4G and 5G networks plus the d Point payment and mail services. This page shows its live Docomo status.
Is Docomo Down for Me or Everyone?
Check the live chart above. Mobile outages hit whole regions at once. If the chart is quiet but your phone has no bars, restart it and check your SIM before assuming a network failure.
Why Did Docomo’s Earthquake Alert Fail?
In October 2026, Docomo failed to send emergency earthquake alerts across eastern Japan. Its Area Mail system broke down after a system fault, so phones in seven regions got no warning. The company said repairs would take several days.
The missed alert turned out to be a false alarm, but the failure worried many users. KDDI and SoftBank delivered their alerts normally that day. Docomo warned that more alerts could fail until its system was fixed.
If you rely on these warnings, keep a second alert app on your phone. Do not depend on one carrier’s system alone.
Why Is My Docomo Signal Gone?
Sudden signal loss often comes from your phone, not the network. Toggle airplane mode on and off to force a fresh connection. If that fails, restart the phone fully.
Why Is Docomo Data So Slow?
Crowded areas slow everyone down. Stations and event venues pack thousands of phones onto few towers. Moving a short distance or waiting for the crowd to thin helps.
Has Docomo Had Major Outages Before?
Yes. A cyberattack in early 2025 knocked out webmail, video, and payment services for hours. An equipment failure once cut hundreds of thousands of lines across 13 prefectures. The network is big, but no network is immune to failure.
Common Docomo Problems and Fixes
No signal
Toggle airplane mode. Restart the phone if bars do not return.
Data very slow
Move away from crowds. Switch between 4G and 5G in settings.
Cannot make calls
Check the outage chart for a voice outage. Reseat your SIM card.
d Point app not working
Update the app. Log out and back into your d account.
No emergency alerts
Keep alert settings on and install a backup warning app.
Having a problem with Docomo?
Comments are public and help others understand the issue.
Frequently Asked Questions
How do I clear a locked Docomo network PIN?
Entering the wrong network PIN several times locks it for security. The lock usually clears on its own after midnight. If it stays locked, visit a docomo shop with photo ID to set the PIN again.
Why do I have no Docomo signal?
Toggle airplane mode and restart your phone. Reseat the SIM if bars stay gone.
What happened with Docomo’s earthquake alert?
In October 2026 a system fault stopped Area Mail alerts across eastern Japan. Repairs took several days.
Why is Docomo data slow?
Crowded places overload nearby towers. Move a little or wait for the crowd to thin.
Is Docomo the biggest carrier in Japan?
Yes. NTT Docomo has the most mobile subscribers in Japan, ahead of KDDI and SoftBank.
Does Docomo work outside Japan?
Yes, with international roaming plans. Check rates before you travel, since they can be high.