Autonomous System
AS1101 SURF B.V.
ISPActiveNetherlandsRIPE
AS1101 (IP-EEND-AS) is an ISP network operated by SURF B.V. in Netherlands, registered with RIPE. It has 14 IPv4 prefixes with 1,773,056 addresses and 3 IPv6 prefixes, which makes it the 284th largest of 82,141 active autonomous systems by IPv4 space.
IPv4 addresses1,773,056in 14 prefixes
IPv6 prefixes3≈ 7.9 × 10²⁸ addresses
Size rank#284of 82,141 active ASNs
Details
OrganizationSURF B.V.
AS nameIP-EEND-AS
Websitesurf.nl
Country Netherlands (NL)
Network typeISP
RegistryRIPE
Abuse contactcert@surfcert.nl
Registered2002-08-21
Last updated2026-09-24
IPv4 prefixes
14 prefixes · 1,773,056 addresses| Network | Addresses | First – last address |
|---|---|---|
| 145.192.0.0/12 | 1,048,576 | 145.192.0.0 – 145.207.255.255 |
| 145.208.0.0/13 | 524,288 | 145.208.0.0 – 145.215.255.255 |
| 44.137.0.0/16 | 65,536 | 44.137.0.0 – 44.137.255.255 |
| 145.99.0.0/16 | 65,536 | 145.99.0.0 – 145.99.255.255 |
| 145.220.0.0/16 | 65,536 | 145.220.0.0 – 145.220.255.255 |
| 192.42.128.0/22 | 1,024 | 192.42.128.0 – 192.42.131.255 |
| 145.102.4.0/23 | 512 | 145.102.4.0 – 145.102.5.255 |
| 192.42.118.0/23 | 512 | 192.42.118.0 – 192.42.119.255 |
| 185.17.73.0/24 | 256 | 185.17.73.0 – 185.17.73.255 |
| 185.100.59.0/24 | 256 | 185.100.59.0 – 185.100.59.255 |
| 192.12.54.0/24 | 256 | 192.12.54.0 – 192.12.54.255 |
| 192.16.200.0/24 | 256 | 192.16.200.0 – 192.16.200.255 |
| 192.42.117.0/24 | 256 | 192.42.117.0 – 192.42.117.255 |
| 192.150.94.0/24 | 256 | 192.150.94.0 – 192.150.94.255 |
145.192.0.0/12 145.208.0.0/13 44.137.0.0/16 145.99.0.0/16 145.220.0.0/16 192.42.128.0/22 145.102.4.0/23 192.42.118.0/23 185.17.73.0/24 185.100.59.0/24 192.12.54.0/24 192.16.200.0/24 192.42.117.0/24 192.150.94.0/24
IPv6 prefixes
3 prefixes- 2a04:601::/32
- 2001:67c:6ec::/48
- 2001:67c:12d8::/48
2a04:601::/32 2001:67c:6ec::/48 2001:67c:12d8::/48
Query AS1101 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS1101&key=YOUR_API_KEY"Any address in its prefixes resolves to AS1101, with or without a key:
curl "https://api.ipapi.is/?q=145.192.0.1"Other networks of SURF B.V.
AS1103 SURF B.V.7,217,408 IPv4 addressesAS1128 SURF B.V.196,608 IPv4 addressesAS1161 SURF B.V.69,632 IPv4 addressesAS1106 SURF B.V.65,792 IPv4 addressesAS1133 SURF B.V.65,536 IPv4 addressesAS1147 SURF B.V.35,328 IPv4 addresses
Largest networks in Netherlands
AS20940 Akamai International B.V.15,599,104 IPv4 addressesAS33915 Vodafone Libertel B.V.12,032,512 IPv4 addressesAS1136 KPN B.V.7,316,992 IPv4 addressesAS1103 SURF B.V.7,217,408 IPv4 addressesAS50266 Odido Netherlands B.V.2,200,320 IPv4 addressesAS6830 Liberty Global Europe Holding B.V.2,100,224 IPv4 addresses