you can also lookup many(most) ASN's using dig. %dig <yourASN>.rdi.int txt If you want to update/correct the entry, I can put in a pointer for you to keep your own data, like so: ;; QUERY SECTION: ;; 267.rdi.int, type = TXT, class = IN ;; ANSWER SECTION: 267.rdi.int. 1d11h59m27s IN TXT "CICNET2-AS;[CIC-NS-ARIN]" ;; AUTHORITY SECTION: 267.rdi.int. 1d11h59m27s IN NS puck.nether.net. 267.rdi.int. 1d11h59m27s IN NS thorn.blackrose.org. 267.rdi.int. 1d11h59m27s IN NS dns.voyager.net. ;; ADDITIONAL SECTION: dns.voyager.net. 11h19m25s IN A 209.153.128.4 ... % dig @dns.voyager.net. 267.rdi.int. any ; <<>> DiG 8.1 <<>> @dns.voyager.net. 267.rdi.int. any ; (1 server found) ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 14, AUTHORITY: 3, ADDITIONAL: 3 ;; QUERY SECTION: ;; 267.rdi.int, type = ANY, class = IN ;; ANSWER SECTION: 267.rdi.int. 1D IN SOA puck.nether.net. jared.nether.net. ( 199809071 ; serial 8H ; refresh 4H ; retry 4W ; expiry 1D ) ; minimum 267.rdi.int. 1D IN NS puck.nether.net. 267.rdi.int. 1D IN NS dns.voyager.net. 267.rdi.int. 1D IN NS thorn.blackrose.org. 267.rdi.int. 1D IN TXT "RPS 0000 person:Jared Mauch" 267.rdi.int. 1D IN TXT "RPS 0001 descr: NetherNet Networks" 267.rdi.int. 1D IN TXT "RPS 0002 aut-num: AS267" 267.rdi.int. 1D IN TXT "RPS 0003 as-in: from AS1225 80 accept ANY" 267.rdi.int. 1D IN TXT "RPS 0004 as-in: from AS234 80 accept ANY" 267.rdi.int. 1D IN TXT "RPS 0005 route: 204.42.252.0/22" 267.rdi.int. 1D IN TXT "RPS 0006 route: 3FFE:900:5::0/48" 267.rdi.int. 1D IN TXT "RPS 0007 admin-c: JM568" 267.rdi.int. 1D IN TXT "RPS 0008 tech-c: JM568" 267.rdi.int. 1D IN TXT "RPS 0009 source: DNS" ...