AS1103

SURF B.V.

AS 1103 SURFNET-NL

Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.

6,233,600 IP addresses
ASN1103
NameSURFNET-NL
OrganizationSURF B.V.
CountryNetherlands  
RegistryARIN
IPv4 addresses6,233,600
IPv6 /64 networks248
Prefixes100
Other ASN allocated to SURF B.V.
ASN Name IP addresses
1101 IP-EEND-AS 1,838,592
1128 TUDELFT-NL 196,608
1161 AS-TUE 69,632
1199 SPEELTUIN-AS 65,536
1133 UTWENTE-AS 65,536
1147 MCL-AS 32,768
1145 Kennisnet-AS 4,096
1102 SMEERBOEL-AS 768
1149 SURFNET-AS 512
1146 OS3-AS 256
1132 METEOGROUP-AS 256
1125 UNSPECIFIED 0
1150 SURFNET-AS 0
1152 SIVON-AS 0
1142 WKAPNET 0
IPv4 Prefixes for AS1103 - showing the first 20 of 97 networks
Network Location Addresses
129.125.0.0/16 Surf B.V.   Groningen (Oranjewijk) 65,536
130.112.0.0/16 Ecn   Amsterdam 65,536
130.115.0.0/16 Surf B.V.   Amsterdam 65,536
130.37.0.0/16 Vrije Universiteit Amsterdam   Amsterdam 65,536
131.174.0.0/16 Nunet   Nijmegen (Nijmegen-Centrum) 65,536
131.211.0.0/16 Uunet   Amsterdam 65,536
131.224.0.0/16 Surf B.V.   Bilthoven 65,536
132.229.0.0/16 Rul   Amsterdam 65,536
134.221.0.0/16 Surf B.V.   The Hague (Belgisch Park) 65,536
136.231.0.0/16 Delfthydro1   Amsterdam 65,536
137.120.0.0/16 Surf B.V.   Amsterdam 65,536
137.224.0.0/16 Wau   Wageningen 65,536
137.56.0.0/16 Kubnet-B   Amsterdam 65,536
139.63.0.0/16 Surf B.V.   The Hague (Belgisch Park) 65,536
141.252.0.0/16 Surf B.V.   Leeuwarden 65,536
143.121.0.0/16 netname: AZUTRECHT   Amersfoort (Centrum) 65,536
145.0.0.0/16 Early registrations SURFnet bv   Utrecht (Binnenstad) 65,536
145.1.0.0/17 Ipt Nioz   Amsterdam 32,768
145.100.0.0/15 Surfnet-Uno   Amsterdam (Amsterdam-Zuidoost) 131,072
145.102.0.0/16 Internlnet   Hoofddorp 65,536
IPv6 Prefixes for AS1103 - showing the first 2 of 3 networks
Network Location /64 Prefixes
2001:610::/29 SURFnet   Utrecht (Binnenstad) 235
2001:67c:262c::/48 Duo   Groningen (Hoogkerk) 216