Autonomous System

AS1133 SURF B.V.

ISPActiveNetherlandsRIPE

AS1133 (UTWENTE-AS) is an ISP network operated by SURF B.V. in Netherlands, registered with RIPE. It has 1 IPv4 prefix with 65,536 addresses and 1 IPv6 prefix, which makes it the 3,528th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses65,536in 1 prefix
IPv6 prefixes1≈ 1.2 × 10²⁴ addresses
Size rank#3,528of 82,200 active ASNs
Abuser scoreVery Low0.02% of its addresses flagged · method

Details

OrganizationSURF B.V.
AS nameUTWENTE-AS
Websitesurf.nl
Country Netherlands (NL)
Network typeISP
RegistryRIPE
Abuse contactcert@surfcert.nl
Registered2002-08-21
Last updated2017-06-12

IPv4 prefixes

1 prefix · 65,536 addresses
NetworkAddressesFirst – last address
130.89.0.0/1665,536130.89.0.0 – 130.89.255.255

IPv6 prefixes

1 prefix
  • 2001:67c:2564::/48

Query AS1133 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=AS1133&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS1133, with or without a key:

curl "https://api.ipapi.is/?q=130.89.0.1"

Other networks of SURF B.V.

6 of 7
AS1103 SURF B.V.7,217,408 IPv4 addressesAS1101 SURF B.V.1,773,056 IPv4 addressesAS1199 SURF B.V.590,848 IPv4 addressesAS1128 SURF B.V.196,608 IPv4 addressesAS1161 SURF B.V.69,632 IPv4 addressesAS1106 SURF B.V.65,792 IPv4 addresses

Largest networks in Netherlands

AS20940 Akamai International B.V.15,600,128 IPv4 addressesAS33915 Vodafone Libertel B.V.12,032,256 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