ClouDNS (AS203391)
ClouDNS (AS203391) is managed anycast DNS from a small Bulgarian company — Cloud DNS Ltd of Sofia, founded in 2010, certified to ISO 27001 and an accredited domain registrar since 2024 — serving over a million domains and, by its own figure, more than eight billion queries a day. Its entire routed footprint is twelve prefixes: eight IPv4 blocks and four IPv6 blocks. That is precisely the shape of an anycast DNS operator and nothing at all like the shape of a carrier.
That matters for how this page should be read. The buildings listed here are places a ClouDNS anycast node runs, generally on capacity rented from whoever operates the site, rather than places where a tenant can cross-connect to ClouDNS or buy anything from it — there is no transport product, no transit and no port to order. The interconnection that does exist is public peering at a handful of fabrics weighted towards Bulgaria and emerging markets, aimed squarely at operators running large recursive resolvers who want a shorter path to these authoritative nodes. For everyone else the service is reachable over any transit, from any building.
ClouDNS (AS203391) is on-net at 157 colocation facilities in the ColoMap directory.
Top metros where ClouDNS (AS203391) is reachable: Washington, DC, US, Frankfurt, DE, Santa Clara, CA, US, London, GB, Dallas, TX, US.
Use the directory below to find a facility on-net with ClouDNS (AS203391), or request a quote tailored to your connectivity requirements.
Facilities on-net with ClouDNS (AS203391)
View all 157 on the map →-
365 Data Centers – Los Angeles 3
900 N. Alameda St, Los Angeles, CA, 90012, USMetro: Los Angeles, CA, US -
Equinix LA1
600 West 7th Street, Los Angeles, CA, 90017, USMetro: Los Angeles, CA, US -
CoreSite One Wilshire (LA1)
624 South Grand Avenue, Los Angeles, CA, 90017, USMetro: Los Angeles, CA, US -
DataBank LAX1 – Los Angeles One Wilshire
624 South Grand Avenue, Los Angeles, CA, 90017, USMetro: Los Angeles, CA, US -
CoreSite Los Angeles (LA2)
900 North Alameda, Los Angeles, CA, 90012, USMetro: Los Angeles, CA, US -
Hurricane Electric Fremont 2
48233 Warm Springs Blvd, Fremont, CA, 94539, USMetro: Santa Clara, CA, US -
Infonet DC
Laevastiku 3R, Tallinn, 10313, EEMetro: Tallinn, EE -
Equinix TR1
151 Front St. W., Toronto, ON, M5J 2N1, CAMetro: Toronto, ON, CA -
Equinix TR2
45 Parliament Street, Toronto, ON, M5A 0G7, CAMetro: Toronto, ON, CA -
250 Front Street West
250 Front St W, Toronto, ON, M5V 3G5, CAMetro: Toronto, ON, CA
Request colocation on ClouDNS (AS203391)
Tell us the metro, space and power you need. We'll route it to operators with ClouDNS (AS203391) on-net and come back with options.