Is the Sofia Edge server out of service?


I live in Sofia, Bulgaria and up until a week or two ago everything worked normally and I was served from the Cloudflare Sofia server.
No every time I make a request I get served from the Prague Edge server.

Why is that? Is the Sofia server still operational?

Best regards,

According to it is and - free bulgarian proxy site |glype proxy | Безплатно българско прокси would show Sofia as datacentre as well.

Does every site give you Prague or only some?

Follow-up, it seems as if it were a combination of ISP and plan type.

Requesting a site via (AS 59729) appears to route via Sofia whereas doing the same via (AS 13124) seems (disclaimer: speculation) to route only paid plans via Sofia and free plans via other locations.

Admittedly a bit odd, as I’d expect a difference in routing based on either the ISP or the plan type but not both. Maybe @cloonan or @cs-cf can shed some light :man_shrugging:

Sofia does work though.

Also, this. Both from the same desktop computer in my home, the first report from Chrome, the second, Firefox. The only difference apart from the browser itself is that for some reason Firefox is using IPv4.

uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.96 Safari/537.36

uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0

I didn’t realize that but you are completely correct. The plan you are using influences the edge server the traffic is served from.

For example when I open, or colo equals SOF but when I open the same address on my own website which uses a free Cloudflare plan then colo is PRG

Another thing that I noticed is that when I open the address on my phone with an IP address from then colo is FRA

This is very weird

Yeah, the AS 13124 proxy appears to be on an Mtel network as well and they seem to route free plans to FRA.

It probably comes down to how the individual ISPs route the requests. But Sofia is generally working :slight_smile:

Thanks for the help.

I asked this question here because about a week ago the free plans were routed properly to SOF but that changed all of a sudden.

I just wanted to know if Cloudflare implemented some changes to their network.

If there was no change on the ISP side, there’d be also the chance that Cloudflare changed something. Maybe open a support request at, though I guess @cloonan and/or @cs-cf might be the better contacts to shed some light here.

Sorry, cant tell either if something, and if so, what has changed.

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