AS number details


SURF B.V.  ·

AS1101 – SURF B.V.

Country Netherlands
Hosted domains 3,816
Number of IPs 1,969,664
ASN type Education
Allocated 20 years ago on Aug 21, 2002

IP Address Ranges

Netblock Company Num of IPs Onweer Service Provider 512 SURFnet bv 65,536 SURFnet bv 1,048,576 SURFnet bv 524,288 SURFnet bv 131,072 SURFnet bv 65,536 COOL-DOWN-ii 65,536 Darkness Reigns (Holding) B.V. 256 IP-EEND-192-12-54 256 IP-EEND-192-150-94 256 SURFnet bv 256 SURFnet 1,024 SURFnet bv 1,024 American Registry for Internet Numbers 65,536
Netblock Company
2001:67c:12d8::/48 In use by public IRC server for the Eris Free Network
2001:67c:6ec::/48 SURF B.V.
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WHOIS Details

as-block:       AS1101 - AS1200
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:09Z
last-modified:  2018-11-22T15:27:09Z
source:         RIPE

aut-num:        AS1101
as-name:        IP-EEND-AS
descr:          IP-EEND BV
org:            ORG-Sb3-RIPE
remarks:        For security/abuse issues:
remarks:        contact <>
import:         from AS1103 accept ANY
import:         from AS1102 accept AS1102
import:         from AS1146 accept AS1146
import:         from AS42 accept AS42
import:         from AS1764 accept AS-NEXTLAYER
import:         from AS3223 accept AS3223
import:         from AS8551 accept AS-BEZEQINT
import:         from AS6724 accept AS-STRATORZ
import:         from AS6939 accept AS6939
import:         from AS8283 accept AS-COLOCLUE
import:         from AS8708 accept AS-RDSNET
import:         from AS12713 accept AS-OTEGLOBE
import:         from AS15772 accept AS-WNET
import:         from AS20562 accept AS-OPENPEERING
import:         from AS20940 accept AS-AKAMAI
import:         from AS23106 accept AS23106
import:         from AS24875 accept AS24875
import:         from AS24940 accept AS-HETZNER
import:         from AS25151 accept AS-CYSO
import:         from AS25369 accept AS-BANDWIDTH
import:         from AS29017 accept AS-GYRON
import:         from AS34868 accept AS-ANYCAST
import:         from AS34968 accept AS-IUNXI
import:         from AS35745 accept AS-PROVECTOR
import:         from AS41692 accept AS-OPENCARRIER
import:         from AS41887 accept AS-PROLOCATION
import:         from AS41913 accept AS-COMPUTERLINE
import:         from AS42473 accept AS-ANEXIA
import:         from AS43350 accept AS-NFORCE
import:         from AS47869 accept AS47869
import:         from AS51752 accept AS-WTBTS
import:         from AS56647 accept AS56647
import:         from AS197595 accept AS197595
import:         from AS200023 accept AS-QONNECTED
import:         from AS206264 accept AS-KODDOS
export:         to AS1103 announce AS1101
export:         to AS1102 announce AS1101 AS1146 AS1199 AS-NOTSURFNET-PEERS
export:         to AS1146 announce AS-NOTSURFNET
export:         to AS42 announce AS-NOTSURFNET
export:         to AS1764 announce AS-NOTSURFNET
export:         to AS3223 announce AS-NOTSURFNET
export:         to AS8551 announce AS-NOTSURFNET
export:         to AS6724 announce AS-NOTSURFNET
export:         to AS6939 announce AS-NOTSURFNET
export:         to AS8283 announce AS-NOTSURFNET
export:         to AS8708 announce AS-NOTSURFNET
export:         to AS12713 announce AS-NOTSURFNET
export:         to AS15772 announce AS-NOTSURFNET
export:         to AS20562 announce AS-NOTSURFNET
export:         to AS20940 announce AS-NOTSURFNET
export:         to AS23106 announce AS-NOTSURFNET
export:         to AS24875 announce AS-NOTSURFNET
export:         to AS24940 announce AS-NOTSURFNET
export:         to AS25151 announce AS-NOTSURFNET
export:         to AS25369 announce AS-NOTSURFNET
export:         to AS29017 announce AS-NOTSURFNET
export:         to AS34868 announce AS-NOTSURFNET
export:         to AS34968 announce AS-NOTSURFNET
export:         to AS35745 announce AS-NOTSURFNET
export:         to AS41692 announce AS-NOTSURFNET
export:         to AS41887 announce AS-NOTSURFNET
export:         to AS41913 announce AS-NOTSURFNET
export:         to AS42473 announce AS-NOTSURFNET
export:         to AS43350 announce AS-NOTSURFNET
export:         to AS47869 announce AS-NOTSURFNET
export:         to AS51752 announce AS-NOTSURFNET
export:         to AS56647 announce AS-NOTSURFNET
export:         to AS197595 announce AS-NOTSURFNET
export:         to AS200023 announce AS-NOTSURFNET
export:         to AS206264 announce AS-NOTSURFNET
admin-c:        NSN19-RIPE
tech-c:         NSN19-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         AS1101-MNT
created:        2002-08-21T16:06:20Z
last-modified:  2018-08-10T11:41:50Z
source:         RIPE
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

organisation:   ORG-Sb3-RIPE
org-name:       SURF B.V.
country:        NL
org-type:       LIR
address:        P.O. Box 19035
address:        3501 DA
address:        Utrecht
address:        NETHERLANDS
phone:          +31887873000
admin-c:        HT3384-RIPE
admin-c:        MK512-RIPE
admin-c:        SNS1-RIPE
admin-c:        WB311-RIPE
admin-c:        NO17-RIPE
admin-c:        RS957-RIPE
abuse-c:        SNS1-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SN-LIR-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SN-LIR-MNT
created:        2004-04-17T11:43:29Z
last-modified:  2022-09-08T11:48:05Z
source:         RIPE

role:           Not SURF net
address:        notSURFnet (Wim),
address:        P.O. Box 19035,
address:        3501 DA Utrecht,
address:        the Netherlands.
phone:          +31 88 7873000
mnt-by:         NOTSURFNET-MNT
admin-c:        WB311-RIPE
tech-c:         WB311-RIPE
nic-hdl:        NSN19-RIPE
remarks:        * -----------------------------------*
remarks:        * *
remarks:        * Report abuse to: *
remarks:        * *
remarks:        * -----------------------------------*
created:        2014-09-09T10:27:38Z
last-modified:  2016-08-23T11:53:17Z
source:         RIPE
Get all this data and more in JSON format using our ASN API Read More

Hosted Domains

There are 3,816 domain names hosted across 116 IP addresses on this ASN.

IP Address Domain Domains on this IP 3,504 67 18 11 6 5 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity


There are 26 peers for this ASN.

Peers Name
AS1102 SURF B.V.
AS1103 SURF B.V.
AS1146 SURF B.V.
AS1239 Sprint
AS13237 euNetworks GmbH
AS14537 Continent 8 LLC
AS206064 Alpine North LTD
AS20932 Services Industriels de Geneve
AS3399 Obenetwork AB
AS34288 Kantonsschule Zug
AS37468 Angola Cables
AS37497 Network Platforms (PTY) LTD
AS38880 Micron21 Datacentre Pty Ltd
AS39122 Blacknight Internet Solutions Limited
AS41805 SAWAD LAND for Information Technology Ltd
AS41887 Prolocation B.V.
AS47957 Compagnie Industrielle Et Financiere D' Ingenierie Ingenico SA
AS52320 GlobeNet Cabos Submarinos Colombia, S.A.S.
AS5713 Telkom SA Ltd.
AS58511 Anycast Global Backbone
AS59947 LL IX RouteServers
AS61955 ColocationIX GmbH
AS6777 Amsterdam Internet Exchange B.V.
AS6939 Hurricane Electric LLC
Get all this data and more in JSON format using our ASN API Read More


There are 2 upstreams for this ASN.

upstreams Name
AS1103 SURF B.V.
AS1239 Sprint
Get all this data and more in JSON format using our ASN API Read More


There is 1 peer for this ASN.

Downstreams Name
AS1146 SURF B.V.
Get all this data and more in JSON format using our ASN API Read More

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS1101 at robtex.

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