Autonomous System Number List

An autonomous system (AS) is a collection of connected Internet Protocol (IP) routing prefixes under the control of one or more network operators on behalf of a single administrative entity or domain, that presents a common and clearly defined routing policy to the Internet. Each AS is assigned a unique autonomous system number (ASN), for use in Border Gateway Protocol (BGP) routing.

AS numbers are assigned to Local Internet Registries (LIRs) and end user organizations by their respective Regional Internet Registries (RIRs), which in turn receive blocks of ASNs for reassignment from the Internet Assigned Numbers Authority (IANA). The IANA also maintains a registry of ASNs which are reserved for private use (and should therefore not be announced to the global Internet). The allocated AS numbers are defined as 16-bit and 32-bit integers. The length range of 16-bit is between 0 and 65535, and the length range of 32-bit is between 0 and 4294967294. At present, the 16-bit integers which allowed for a maximum of 65,536 assignments is mostly used.

AS Number AS Organization Country Code
AS869 GONET-ASN-17 CA (Canada)
AS870 GONET-ASN-17 CA (Canada)
AS871 GONET-ASN-17 CA (Canada)
AS872 GONET-ASN-17 CA (Canada)
AS873 GONET-ASN-17 CA (Canada)
AS874 GONET-ASN-17 CA (Canada)
AS875 GONET-ASN-17 CA (Canada)
AS876 GONET-ASN-17 CA (Canada)
AS877 GONET-ASN-17 CA (Canada)
AS878 GONET-ASN-17 CA (Canada)
AS879 GONET-ASN-17 CA (Canada)
AS880 GONET-ASN-17 CA (Canada)
AS881 GONET-ASN-17 CA (Canada)
AS882 GONET-ASN-17 CA (Canada)
AS883 GONET-ASN-17 CA (Canada)
AS884 GONET-ASN-17 CA (Canada)
AS885 GONET-ASN-17 CA (Canada)
AS1101 SURF B.V. NL (Netherlands)
AS1102 SURF B.V. NL (Netherlands)
AS1103 SURF B.V. NL (Netherlands)
AS1104 Stichting Nederlandse Wetenschappelijk Onderzoek Instituten NL (Netherlands)
AS1109 Universitaet Salzburg AT (Austria)
AS1110 University of Innsbruck AT (Austria)
AS1111 Universitaet Klagenfurt AT (Austria)
AS1112 Montanuniversitaet Leoben AT (Austria)
AS1113 Technische Universitaet Graz AT (Austria)
AS1114 Universitaet Graz AT (Austria)
AS1115 Austrian Academy of Sciences AT (Austria)
AS1117 Universitaet fur Bodenkultur, Wien EU
AS1124 Universiteit van Amsterdam EU
AS1126 VANCIS Vancis Advanced ICT Services EU
AS1128 SURF B.V. NL (Netherlands)
AS1132 SURF B.V. NL (Netherlands)
AS1133 SURF B.V. NL (Netherlands)
AS1136 KPN B.V. NL (Netherlands)
AS1140 Stichting Internet Domeinregistratie Nederland NL (Netherlands)
AS1145 SURF B.V. NL (Netherlands)
AS1146 SURF B.V. NL (Netherlands)
AS1147 SURF B.V. NL (Netherlands)
AS1149 SURF B.V. NL (Netherlands)
AS1152 SURF B.V. NL (Netherlands)
AS1161 SURF B.V. NL (Netherlands)
AS1197 Network Ability Limited IE (Ireland)
AS1200 Amsterdam Internet Exchange B.V. NL (Netherlands)
AS1201 ASN-ODU-AS-AS US (United States)
AS1204 SUNYNET-ASN-AS US (United States)
AS1205 University Linz AT (Austria)
AS1206 PSCNET-HS-AS US (United States)
AS1207 PSCNET-HS-TEST-AS US (United States)