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Mubarak Takes Internet in Egypt offline
Thursday Jan 27th, 2011 10:19 PM
January 28th, 2011 | Filed Under: BGP instability

Different media are reporting that Internet and other forms of electronic communications are being disrupted in Egypt. Presumably after a government order in response to the protests. Looking at BGP data we can confirm that according to our analysis 88% of the ‘Egyptian Internet’ has fallen of the Internet. In this post I’ll share some observations I made with regards to the reachability of Egyptian networks and providers.

What’s different in this case as compared to other ‘similar’ cases is that all of the major ISP’s seem to be almost completely offline. Whereas in other cases, social media sites such as facebook and twitter were typically blocked. In this case the government seems to be taking a shotgun approach by ordering ISP’s to stop routing all networks.

Networks affected
When looking at the data it’s clear that many Egyptian networks have fallen off the Internet. Let’s start by looking at a quick summary. Yesterday there were 2903 Egyptian networks, originated from 52 ISP’s. Transit was provided via 45 unique isp’s.
Today at 2am UTC, the numbers look quite different, there were only 327 Egyptian networks left on the Internet. These were originated 26 by ISP’s.
So 88% of the Egyptian networks is unreachable!

Num of prefixes Num of origin Asn
27-Jan 2903 52
28-Jan 327 26
Disappeared 2576 26

Below you’ll find a table with the top 10 providers in Egypt. It shows how many Egyptian networks were announced earlier this week and how many are reachable today.

As you can see in the table below, right now most autonomous systems (ISP’s) are no longer announcing any, or at the very least, significantly less prefixes.

Prefixes today Prefixes earlier this week origin AS Provider name
20 775 8452 TE-AS TE-AS
0 774 24863 LINKdotNET-AS
113 676 36992 ETISALAT-MISR
0 217 24835 RAYA Telecom – Egypt
0 102 5536 Internet-Egypt
85 83 20928 Noor Data Networks
0 41 36935 Vodafone-EG
23 36 15475 Nile Online
14 28 8524 eg-auc
0 25 6127 IDSC

Interestingly the only provider that doesn’t seem to be impacted by this is AS20928 (Noor Data Networks).

Below is the list of providers that are still announcing networks (based on routeviews data):

Network Name Number of routes
AS36992 Etisalat-Misr 104
AS20928 Noor Data Networks 83
AS24835 RAYA Telecom – Egypt 38
AS15475 Nile Online 23
AS2561 Egyptian Universities Network (EUN) 14
AS8452 TE-AS TE-AS 12

When did this start?

By looking at some Egyptian websites and looking at when they became unreachable we are able to determine when the problem started.

At this point is offline. This network, was withdrawn at January 27th at 22:28 UTC . Another example is an Egyptian news paper. This network, became unreachable at the exact same time, January 27th at 22:28 UTC.

§Egypt Leaves the Internet
by renesys Thursday Jan 27th, 2011 10:21 PM
By James Cowie on January 27, 2011 7:56 PM

Confirming what a few have reported this evening: in an action unprecedented in Internet history, the Egyptian government appears to have ordered service providers to shut down all international connections to the Internet. Critical European-Asian fiber-optic routes through Egypt appear to be unaffected for now. But every Egyptian provider, every business, bank, Internet cafe, website, school, embassy, and government office that relied on the big four Egyptian ISPs for their Internet connectivity is now cut off from the rest of the world. Link Egypt, Vodafone/Raya, Telecom Egypt, Etisalat Misr, and all their customers and partners are, for the moment, off the air.

At 22:34 UTC (00:34am local time), Renesys observed the virtually simultaneous withdrawal of all routes to Egyptian networks in the Internet's global routing table. Approximately 3,500 individual BGP routes were withdrawn, leaving no valid paths by which the rest of the world could continue to exchange Internet traffic with Egypt's service providers. Virtually all of Egypt's Internet addresses are now unreachable, worldwide.

This is a completely different situation from the modest Internet manipulation that took place in Tunisia, where specific routes were blocked, or Iran, where the Internet stayed up in a rate-limited form designed to make Internet connectivity painfully slow. The Egyptian government's actions tonight have essentially wiped their country from the global map.

What happens when you disconnect a modern economy and 80,000,000 people from the Internet? What will happen tomorrow, on the streets and in the credit markets? This has never happened before, and the unknowns are piling up. We will continue to dig into the event, and will update this story as we learn more. As Friday dawns in Cairo under this unprecedented communications blackout, keep the Egyptian people in your thoughts.

Update (3:06 UTC)

One of the very few exceptions to this block has been Noor Group (AS20928), which still has 83 out of 83 live routes to its Egyptian customers, with inbound transit from Telecom Italia as usual. Why was Noor Group apparently unaffected by the countrywide takedown order? Unknown at this point, but we observe that the Egyptian Stock Exchange ( is still alive at a Noor address.

Its DNS A records indicate that it's normally reachable at 4 different IP addresses, only one of which belongs to Noor. Internet transit path diversity is a sign of good planning by the Stock Exchange IT staff, and it appears to have paid off in this case. Did the Egyptian government leave Noor standing so that the markets could open next week?
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Ham RadioNisslFriday Jan 28th, 2011 12:17 AM