DTN Outage History

69 incidents recorded over the last 365 days, 46 of them resolved. Durations are measured from when PulsAPI first saw the problem to when it cleared, which is usually longer than the vendor's own figure.

Live DTN status100.00% uptime history

Every Recorded DTN Incident

DTN incidents, newest first, with date, duration and status.
DateIncidentDurationStatus
Nov 2, 2026Icing GRIB File, 30 Hour Forecast Delayed - 2 Nov 1200ZThe 30 hour forecast file has arrived and been sent. Issue resolved.12 minResolved
Oct 30, 2026GRIB Files 0.5 and 1.0 Degree Files from 30 OCT 0600Z Missing/LateAll GRIB files from 30 OCT 0600Z have arrived and been sent. This is resolved.1h 4mResolved
Oct 3, 2026Aghost & Portal Service OutageThis incident has been resolved.724h 3mResolved
Sep 30, 2026International NOTAM InterruptionAnother A605*.00A file has posted at 2113Z. Further interruption is not expected.19 minResolved
Sep 29, 2026FAA NOTAM Maintenance - US Domestic NOTAMsThe scheduled maintenance has been completed.4h 0mScheduled
Aug 26, 2026Quarterly Updates and PatchingThe scheduled maintenance has been completed.1h 0mScheduled
Aug 25, 2026Quarterly Updates and PatchingThe scheduled maintenance has been completed.1h 0mScheduled
Aug 19, 2026METAR and TAF File IssueThis is now resolved. METAR and TAF files are updating and being sent as expected.53 minResolved
Aug 15, 202615 AUG 1200Z Icing GRIB Files - 12 Hour Forecast files DelayedThe 12 hour forecast has arrived. Files being sent now. Issue resolved.24 minResolved
Aug 14, 202614 AUG 1200Z Icing GRIB Files - Forecast Hour 36 DelayedThe 36 hour forecast files have arrived and being now. Issue is resolved.23 minResolved
Aug 13, 202613 AUG 0600Z Icing GRIB Files - Forecast Hour 15 is DelayedThe 15 hour forecast just arrived and DTN is sending it now. This is resolved.16 minResolved
Aug 12, 202612 AUG 1200Z Icing GRIB Files - Forecast Hours 6 and 12 are running lateForecast hours 6 and 12 just arrived and DTN is sending them at this time. This issue is resolved.21 minResolved
Aug 11, 202611 AUG 0600Z - 0.25 Degree Icing GRIB Files - Forecast Hours 15 and 36 MissingForecast hours 15 and 36 have just arrived. Files are being sent out now. This is resolved.31 minResolved
Aug 10, 202610 AUG 1200Z - 0.25 Degree Icing GRIB Files - Forecast Hour 06 MissingWe just received the file from the data provider. File is being sent now. Issue is resolved.11 minResolved
Aug 10, 202610 AUG 0600Z - 0.25 Degree Icing GRIB Files - Forecast Hour 09 MissingThe missing file just arrived and is being sent. This is resolved.9 minResolved
Jul 26, 202612z 0.25 Degree Icing Data12z 0.25 degree icing files were pulled from our backup source. All files are current.1h 8mResolved
Jul 16, 2026GOES East OutageWe have seen GOES-E Satellite Images return. NOAA issues resolved.3h 11mResolved
Jul 15, 2026Network issue impacting file deliveryOur operations team confirmed successful connections and we are considering the issue resolved.1h 14mResolved
Jul 9, 2026Upstream Internet IssueWe have successfully rerouted traffic around the upstream internet provider issue, and services have been restored. We are seeing normal operation across impacted systems and will continue to monitor closely to ensure…47 minResolved
Jul 8, 2026International NOTAM InterruptionData is flowing with another file at 2122Z. All missed data has been backfilled.33 minResolved
Jun 30, 2026DTN Network OutageDTN has fully resolved the network outage affecting portions of our product portfolio. The root cause was identified and corrective actions were implemented. All impacted services have been restored and are operating…5h 49mResolved
Jun 20, 2026Missing Global Flight Hazard DataLatest date had populated.7h 43mResolved
Jun 18, 2026Global Flight HazardsAll data has populated and been sent out.25 minResolved
Jun 17, 2026DTN Maintenance - Enhanced Flight Hazards Shapefile and GeoJSON FilesThe scheduled maintenance has been completed.6h 0mScheduled
Jun 17, 2026FAA NOTAM Maintenance - US Domestic NOTAMsThe scheduled maintenance has been completed.4h 0mScheduled
Jun 14, 2026GRIB Files 0.25 degree Icing Files DelayedThe 14 JUN 1800 UTC 0.25 degree WAFS GRIB Files have come in and are being sent. The 1800 UTC files are complete.4h 37mResolved
Jun 3, 2026TABS Service UpdateWe are pleased to confirm that the issue affecting TABS Reports has been fully resolved. All invalid data that was populating within the system has been identified and successfully removed. TABS Reports is now…50h 50mResolved
Jun 2, 2026EAD Maintenance - International NOTAMsThe scheduled maintenance has been completed.1h 30mScheduled
May 27, 2026Enhanced Flight Hazards IssueData has been flowing over the past few hours for the North American Hazards. The 18Z Global Hazards were on-time as well and we expect no delay with the 00z Global Hazards.9h 4mResolved
May 27, 2026Global Enhanced Flight Hazards DelayedThis is now resolved. The 27 May 0600Z Global Enhanced Flight Hazards has completed. For the North America Enhanced Flight Hazards, the latest available is for 27 May 1400Z.3h 19mResolved
May 26, 2026EAD Maintenance - International NOTAMsThe scheduled maintenance has been completed.1h 30mScheduled
May 21, 2026US Domestic NOTAM MaintenanceThe scheduled maintenance has been completed.30 minScheduled
May 20, 2026Quarterly PatchingThe scheduled maintenance has been completed.1h 30mScheduled
May 19, 2026Quarterly PatchingThe scheduled maintenance has been completed.1h 0mScheduled
May 13, 2026FAA NOTAM Maintenance - US Domestic NOTAMsThe scheduled maintenance has been completed.4h 0mScheduled
May 12, 2026EAD Certificate UpdateThe scheduled maintenance has been completed.30 minScheduled
May 6, 2026International NOTAM InterruptionInternational NOTAM files continue to generate and the upstream maintenance has ended.32 minResolved
Apr 18, 2026FAA NOTAM Maintenance - US International NOTAMsThe scheduled maintenance has been completed.5h 0mScheduled
Apr 18, 2026FAA NOTAM Maintenance - US Domestic NOTAMsThe scheduled maintenance has been completed.5h 0mScheduled
Apr 14, 2026FAA NOTAM Maintenance - US Domestic NOTAMsThe scheduled maintenance has been completed.2h 0mScheduled
Apr 11, 2026Global Enhanced Flight Hazards - Missing FilesIssues with the Enhanced Flight Hazards has been resolved.35h 56mResolved
Apr 11, 2026FAA NOTAM Maintenance - US Domestic NOTAMsThe scheduled maintenance has been completed.4h 0mScheduled
Apr 10, 2026FAA NOTAM Maintenance - US Domestic NOTAMsThe scheduled maintenance has been completed.8h 0mScheduled
Apr 9, 2026US Domestic NOTAMsThis issue is resolved, DTN continues to receive US Domestic NOTAMs from the FAA.12h 32mResolved
Apr 3, 2026United States METAR Data IssueThe United States METAR distribution issue has been resolved.38 minResolved
Mar 29, 2026Global Flight Hazard12z data has come in and is complete.6h 7mResolved
Mar 25, 2026US NOTAMSThis issue is now resolved. Thank you.4h 8mResolved
Mar 25, 2026FAA NOTAM Maintenance - US Domestic NOTAMsThe scheduled maintenance has been completed.5h 0mScheduled
Mar 23, 2026US Domestic NOTAM MaintenanceThe scheduled maintenance has been completed.1h 0mScheduled
Mar 18, 2026International NOTAM DelayMaintenance has concluded and all data has backfilled.20 minResolved
Mar 12, 2026METAR and TAF Data InterruptionThe issue has been resolved, systems are stable, and all data has been backfilled.41 minResolved
Feb 18, 2026Quarterly PatchingThe scheduled maintenance has been completed.1h 0mScheduled
Feb 17, 2026FAA NOTAM Maintenance - US Domestic NOTAMsThe scheduled maintenance has been completed.4h 0mScheduled
Feb 12, 2026EAD Maintenance - International NOTAMsThe scheduled maintenance has been completed.1h 30mScheduled
Feb 11, 2026FAA NOTAM Maintenance - US Domestic NOTAMsThe scheduled maintenance has been completed.2h 0mScheduled
Feb 10, 2026International NOTAMsInternational NOTAM data is flowing and any missed data has been backfilled.57 minResolved
Jan 30, 2026US Domestic NOTAMs IssueThe issue with US domestic NOTAMs has been resolved.40 minResolved
Jan 21, 2026International NOTAM DelayAll data has been backfilled.38 minResolved
Jan 20, 2026METARs and TAFs IssueThis issue is resolved. DTN is sending METAR and TAF files as expected.48 minResolved
Jan 15, 2026International NOTAMsNormal International NOTAM distribution has resumed.27 minResolved
Jan 13, 2026Enhanced Flight Hazards 13 JAN 0600 GMT Forecast RunAll files from the 13 JAN 1200 GMT have run and been sent.5h 49mResolved
Dec 13, 2025International NOTAM files not updatingWe have addressed the root cause for international NOTAMs not sending out. We have also run a backfill script for any missed NOTAMs.7h 18mResolved
Dec 4, 2025North America Radar MosaicThis incident has been resolved.2h 45mResolved
Nov 26, 2025Domestic/US NOTAM DelaysThe FAA maintenance took a little longer than expected. Services have returned to normal.1h 37mResolved
Nov 19, 2025International NOTAMData flow has resumed and is stable. All data during the outage has been backfilled.51 minResolved
Nov 17, 2025Missing images in RoadmasterThe Fix deployment has been completed, and the issue has been resolved. Camera images are now available on Roadmaster. Thanks for your patience!2h 54mResolved
Nov 12, 2025Enhanced Flight Hazards IssueAll enhanced flight hazard data has been backfilled.9h 20mResolved
Nov 5, 2025International NOTAM DataInternational NOMAM data continues to flow and data has been backfilled.2h 45mResolved
Nov 5, 2025METAR and TAF Data DelaysWe have resolved the issue. All data from during the outage has been pushed out.31 minResolved

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How to Read This DTN Incident Log

Each row is an incident PulsAPI observed, not a summary written afterwards. The duration is wall-clock time between the first failing check and the first clean one, so it includes the window before DTN acknowledged anything. Vendor post-mortems typically measure from acknowledgement, which is why their numbers are usually shorter.

Incidents still open have no duration yet and are listed as ongoing rather than being given a running total. The archive covers the last 365 days; anything older has aged out of the window rather than never having happened.

The longest single DTN outage in this window ran 30d 4h, against a mean recovery of 14h 13m. If you depend on DTN in a customer-facing path, the longest figure is the one to design around. The mean is what happens on a normal bad day; the maximum is what happens on the worst one.