Joerg> Having only two nameservers for a tld and Joerg> both of them in a single AS makes me kind of nervous. Indeed. However, don't assume that the number of NS records for a zone is the same as the number (and physical locations) of its name servers. There's a fair amount of anycasting going on. What is curious is ICANN allowing a TLD to put all its name servers in a single AS. They made the new gTLDs use at least 2. So I would have expected ICANN to apply the same requirement for .org when it was moved from Verisign/NSI. Note, org isn't the only gtld announced by a single AS. You wouldn't be suprised to hear that that info as well. The other one has another problem: The tld[12] nameserver don't give authorative answers about nameservers for info. jaap dig @tld1.ultradns.net info ns ; <<>> DiG 9.2.2 <<>> @tld1.ultradns.net info ns ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38910 ;; flags: qr rd; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 2 ;; QUESTION SECTION: ;info. IN NS ;; ANSWER SECTION: info. 86400 IN NS tld2.ultradns.net. info. 86400 IN NS tld1.ultradns.net. ;; ADDITIONAL SECTION: tld2.ultradns.net. 86400 IN A 204.74.113.1 tld1.ultradns.net. 86400 IN A 204.74.112.1