# http://www.iana.org/assignments/as-numbers # actually I listed here also the unallocated space reserved for each RIR 131077 131086 whois.nic.ad.jp 131092 131101 whois.nic.or.kr 131152 131161 whois.nic.ad.jp 131791 131890 whois.nic.or.kr 131893 131992 whois.nic.ad.jp 2.0 2.65535 apnic 3.0 3.65535 ripe 4.0 4.65535 lacnic 5.0 5.65535 afrinic 6.0 6.65535 arin # private ASN block 4200000000 4294967294 ripe