"The networks that are not reachable include, substantially, all of the prefixes reserved for SyriaTel's 3G mobile data networks, and smaller downstream ISPs (Internet Service Providers) including Sawa, INET, and Runnet," he said.
Cowie said the network prefixes that remain reachable include those belonging to the Syrian government, "although many government websites are slow to respond or down."
"The Oil Ministry is up, for example, and Syrian Telecom's official page, but the Ministry of Education is down, as is the Damascus city government page, and the Syrian Customs website," he said.
A website maintained by Google, meanwhile, that monitors traffic to its popular services around the world showed traffic levels in Syria well below normal.
Cowie said the Internet in Syria basically depends on one domestic provider, state-owned SyriaTel, but "we don't know yet how the outage was coordinated, or what specific regions or cities may be affected more than others."
In Syria, residents said the Internet was down in Damascus and the coastal city of Latakia on Friday.
According to the London-based Syrian Observatory for Human Rights, Syrian security forces shot dead at least 34 demonstrators in the city of Hama on Friday as they dispersed an anti-regime rally of more than 50,000 people.
During anti-government protests in Egypt in January, the Egyptian authorities cut off access to the Internet in a move which Renesys described at the time as unprecedented. Service was restored several days later.
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Cowie said the network prefixes that remain reachable include those belonging to the Syrian government, "although many government websites are slow to respond or down."
"The Oil Ministry is up, for example, and Syrian Telecom's official page, but the Ministry of Education is down, as is the Damascus city government page, and the Syrian Customs website," he said.
A website maintained by Google, meanwhile, that monitors traffic to its popular services around the world showed traffic levels in Syria well below normal.
Cowie said the Internet in Syria basically depends on one domestic provider, state-owned SyriaTel, but "we don't know yet how the outage was coordinated, or what specific regions or cities may be affected more than others."
In Syria, residents said the Internet was down in Damascus and the coastal city of Latakia on Friday.
According to the London-based Syrian Observatory for Human Rights, Syrian security forces shot dead at least 34 demonstrators in the city of Hama on Friday as they dispersed an anti-regime rally of more than 50,000 people.
During anti-government protests in Egypt in January, the Egyptian authorities cut off access to the Internet in a move which Renesys described at the time as unprecedented. Service was restored several days later.
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