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.
6,270,464 IP addresses
Network
| ASN | 1103 |
|---|---|
| Name | SURFNET-NL SURFnet, The Netherlands |
| Organization | SURFnet bv |
| Country | Netherlands |
| Registry | RIPE NCC |
Details
| IPv4 addresses | 6,270,464 |
|---|---|
| IPv6 /64 networks | 248 |
| Prefixes | 97 |
Other ASN allocated to SURFnet bv
| ASN | Name | IP addresses |
|---|---|---|
| 1101 | IP-EEND-AS IP-EEND BV | 1,838,592 |
| 1128 | TUDELFT-NL DTO TUDELFT, The Netherlands - AS | 196,608 |
| 1161 | AS-TUE Technische Universiteit Eindhoven (TU/e) | 70,656 |
| 1199 | ABUSEHUB-AS SURFnet | 65,536 |
| 1133 | UTWENTE-AS University Twente | 65,536 |
| 1125 | SURFnet Test Network | 65,536 |
| 1147 | MCL-AS Medisch Centrum Leeuwarden | 32,768 |
| 1145 | KENNISNET-AS Kennisnet | 4,096 |
| 1142 | WKAPNET Springer Science and Business Media B.V. | 3,072 |
| 1132 | METEOCONSULT-AS Meteo Consult BV | 768 |
| 1102 | SMEERBOEL-AS SMEERBOEL BV | 768 |
| 1149 | SURFNET-AS SURFnet BV | 512 |
| 1146 | OS3-AS OS3 | 256 |
| 1150 | SURFNET-AS | 0 |
Prefixes for AS1103
IPv4 addresses - showing the first 20 of 94 networks
| Network | Location | Addresses | |
|---|---|---|---|
| 129.125.0.0/16 | SURFnet bv |  Groningen (Oranjewijk) |
65,536 |
| 130.112.0.0/16 | Ecn | Amsterdam (Amsterdam-Zuidoost) |
65,536 |
| 130.115.0.0/16 | SURFnet bv | Amsterdam (Amsterdam-Zuidoost) |
65,536 |
| 130.37.0.0/16 | Vrije Universiteit Amsterdam | Amsterdam-Zuidoost (Zuidoost) |
65,536 |
| 131.174.0.0/16 | Nunet | Nijmegen (Nijmegen-Centrum) |
65,536 |
| 131.211.0.0/16 | Uunet | Amsterdam-Zuidoost (Zuidoost) |
65,536 |
| 131.224.0.0/16 | SURFnet bv | Bilthoven |
65,536 |
| 132.229.0.0/16 | Rul | Amsterdam-Zuidoost (Zuidoost) |
65,536 |
| 134.221.0.0/16 | SURFnet bv | The Hague (Belgisch Park) |
65,536 |
| 136.231.0.0/16 | Delfthydro1 | Amsterdam (Amsterdam-Zuidoost) |
65,536 |
| 137.120.0.0/16 | SURFnet bv | Amsterdam (Amsterdam-Zuidoost) |
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 | SURFnet bv | The Hague (Belgisch Park) |
65,536 |
| 141.252.0.0/16 | SURFnet bv | Leeuwarden |
65,536 |
| 143.121.0.0/16 | netname: AZUTRECHT | Amersfoort (Centrum) |
65,536 |
| 145.0.0.0/16 | Early registrations SURFnet bv | Utrecht |
65,536 |
| 145.1.0.0/17 | Ipt Nioz | Amsterdam-Zuidoost (Zuidoost) |
32,768 |
| 145.1.96.0/21 | Ipt Nioz | Amsterdam (Amsterdam-Zuidoost) |
2,048 |
| 145.100.0.0/15 | Surfnet-Uno | Amsterdam (Amsterdam-Zuidoost) |
131,072 |
IPv6 addresses - showing the first 2 of 3 networks
| Network | Location | /64 Prefixes | |
|---|---|---|---|
| 2001:610::/29 | SURFnet | Utrecht |
235 |
| 2001:67c:262c::/48 | Duo | Groningen (Hoogkerk) |
216 |
