Subscribe to receive notifications of new posts:

Syrian Internet Restored


2 min read

Yesterday, Syria's Internet connectivity was cut off from the rest of the world. At 14:12 UTC, approximately 19 hours and 30 minutes after it had been shut down, connectivity was returned. Here's a BGPlay video of routes being restored within the country.

Two interesting points. First, the government has stated that the outage was the result of a cable cut. Based on what we've seen, we believe this is highly unlikely. Syria's network connects to the rest of the Internet at four distinct points that are geographically separated. For traffic to be terminated entirely, all four connection points would need to be severed simultaneously.

Moreover, the video of the outage, as well as the video of the routes being restored, show the systematic withdrawl of BGP routes across all of Syria's providers. This is not the signature we see when there is an actual cable cut.

Second, while most of the Internet was cut off in Syria, it appears there was a small portion of Syrian IP space that continued to have connectivity. Specifically, the following IP ranges behind AS29256:


Those prefixes continued to be announced to Deutche Telecom which means they would have continued to have access to the Internet.

We don't know who is behind that IP space. We're still investigating whether we saw any Internet traffic coming from that IP space. The fact that they were still available, however, further discredits the assertation that this was a cable cut.

Here is a graph showing the last 24 hours of Syrian traffic to the CloudFlare network.

Syrian Internet access restored

We protect entire corporate networks, help customers build Internet-scale applications efficiently, accelerate any website or Internet application, ward off DDoS attacks, keep hackers at bay, and can help you on your journey to Zero Trust.

Visit from any device to get started with our free app that makes your Internet faster and safer.

To learn more about our mission to help build a better Internet, start here. If you're looking for a new career direction, check out our open positions.

Follow on X

Matthew Prince|@eastdakota

Related posts

November 29, 2012 8:13 PM

How Syria Turned Off the Internet

Today, 29 November 2012, between 1026 and 1028 (UTC), all traffic from Syria to the rest of the Internet stopped. At CloudFlare, we witnessed the drop off. We've spent the morning studying the situation to understand what happened. ...