AS number details

AS1103

SURF B.V.  ·  surf.nl

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AS1103 – SURF B.V.

Field Value
Country Netherlands
Website surf.nl
Hosted domains 8,957
Number of IPv4 7,204,096
Number of IPv6 633,827,717,965,753,930,006,701,015,040
ASN type Education
Registry ripe
Allocated 23 years ago on Sep 23, 2002
Updated 4 months ago on Apr 30, 2025
Netblock Company Num of IPs
145.144.0.0/12 SURFnet bv 1,048,576
145.160.0.0/12 SURFnet bv 1,048,576
145.120.0.0/14 SURFnet bv 262,144
145.140.0.0/14 SURF B.V. 262,144
145.100.0.0/15 SURFsara 131,072
145.124.0.0/15 Stichting ASTRON 131,072
145.136.0.0/15 Hogeschool Rotterdam & Omstreken 131,072
145.2.0.0/15 Hogeschool Saxion 131,072
145.28.0.0/15 Hogeschool van Amsterdam 131,072
145.38.0.0/15 SURFsara reken cluster 131,072
145.48.0.0/15 Avans Hogeschool 131,072
145.74.0.0/15 Hogeschool van Arnhem en Nijmegen 131,072
145.88.0.0/15 Leiden University Medical Centre 131,072
145.92.0.0/15 Hogeschool van Amsterdam 131,072
129.125.0.0/16 Groningen 65,536
130.37.0.0/16 Vrije Universiteit Amsterdam 65,536
131.174.0.0/16 Radboud Universiteit Nijmegen 65,536
131.211.0.0/16 Heidelberglaan 8 65,536
131.224.0.0/16 Rijksinstituut voor Volksgezondheid en Milieuhygiene 65,536
132.229.0.0/16 P.O. box 9500 65,536
134.221.0.0/16 Dutch organization for applied scientific research 65,536
136.231.0.0/16 Stichting Deltares 65,536
137.120.0.0/16 P.O.Box 616, 6200 MD, Maastricht, The Netherlands 65,536
137.224.0.0/16 Wageningen Universiteit 65,536
137.56.0.0/16 Universiteit van Tilburg 65,536
139.63.0.0/16 Dutch organization for applied scientific research 65,536
141.252.0.0/16 65,536
143.121.0.0/16 Universitair Medisch Centrum Utrecht 65,536
145.0.0.0/16 SURFnet bv 65,536
145.102.0.0/16 SURFnet bv 65,536
145.103.0.0/16 Stichting GlasLokaal 65,536
145.107.0.0/16 SURF B.V. 65,536
145.108.0.0/16 Vrije Universiteit Amsterdam 65,536
145.117.0.0/16 Academic Medical Centre 65,536
145.118.0.0/16 SURFnet bv 65,536
145.126.0.0/16 SURFnet bv 65,536
145.138.0.0/16 ROC Aventus 65,536
145.19.0.0/16 Hogeschool Zeeland Network 65,536
145.20.0.0/16 Open Universiteit 65,536
145.23.0.0/16 Koninklijk Nederlands Meteorologisch Instituut 65,536
145.24.0.0/16 Hogeschool Rotterdam & Omstreken 65,536
145.33.0.0/16 Hanzehogeschool Groningen 65,536
145.37.0.0/16 Hanzehogeschool Groningen 65,536
145.41.0.0/16 SURFnet4 backbone 65,536
145.44.0.0/16 Christelijke Hogeschool Windesheim 65,536
145.5.0.0/16 Erasmus University Rotterdam 65,536
145.51.0.0/16 Hogeschool Rotterdam & Omstreken 65,536
145.52.0.0/16 Haagse Hogeschool 65,536
145.76.0.0/16 Hogeschool Saxion 65,536
145.81.0.0/16 SURFnet bv 65,536
145.85.0.0/16 Fontys Hogescholen 65,536
145.90.0.0/16 SURFnet bv 65,536
145.9.0.0/16 Deltares 65,536
145.91.0.0/16 Hogeschool Zuyd 65,536
145.95.0.0/16 SURFnet bv 65,536
145.96.0.0/16 SURFnet bv 65,536
145.98.0.0/16 Universiteit Maastricht Lab 65,536
156.83.0.0/16 Erasmus MC 65,536
192.87.0.0/16 SURF B.V. 65,536
194.171.0.0/16 SURF B.V. 65,536
195.169.0.0/16 SURF B.V. 65,536
145.1.0.0/17 Stichting NIOZ, Koninklijk Nederlands Instituut voor Onderzoek der Zee 32,768
145.127.0.0/17 Universiteit Maastricht (UM) 32,768
145.116.128.0/18 Radboud University Nijmegen 16,384
145.116.64.0/18 ROC Mondriaan 16,384
145.137.128.0/18 Radboud Universiteit Nijmegen 16,384
145.97.128.0/18 Rijks Universiteit Groningen 16,384
145.97.192.0/18 SURF B.V. 16,384
145.97.64.0/18 ROC Oost-Nederland 16,384
145.116.224.0/19 ROC Oost-Nederland 8,192
145.116.192.0/20 Zeeuwse Bibliotheek 4,096
145.97.0.0/20 SURF B.V. 4,096
145.97.48.0/20 ROC Oost-Nederland 4,096
194.104.240.0/20 Maastricht 4,096
194.13.16.0/20 Inspectie van het Onderwijs 4,096
145.97.24.0/21 Radboud University Nijmegen 2,048
194.13.112.0/21 Stichting Sint Antonius Ziekenhuis 2,048
145.107.24.0/22 Radboud University Nijmegen 1,024
145.97.16.0/22 Hogeschool Leiden 1,024
145.97.20.0/22 SURFnet SURFcloud 1,024
192.42.120.0/22 SURFnet 1,024
192.42.124.0/22 De Zaale 20 1,024
193.177.176.0/22 Veldhoven 1,024
194.26.12.0/22 Eindhoven 1,024
194.26.8.0/22 Eindhoven 1,024
192.16.188.0/23 SURFnet bv 512
192.42.114.0/23 Plesmanlaan 121 512
194.104.124.0/23 Breda 512
192.104.140.0/24 Centraal Planbureau 256
192.31.231.0/24 Vrije Universiteit 256
192.33.36.0/24 Vrije Universiteit 256
192.42.113.0/24 SURFnet bv 256
192.43.212.0/24 Dutch organization for applied scientific research 256
193.176.235.0/24 Amsterdam 256
194.53.88.0/24 Tilburg 256
194.53.89.0/24 Tilburg 256
194.53.92.0/24 Tilburg 256
194.53.94.0/24 Tilburg 256
194.53.95.0/24 Tilburg 256

Netblock Company
2001:610::/29 SURF B.V.
2001:67c:1200::/48 Maxima Medisch Centrum
2001:67c:262c::/48 Dienst Uitvoering Onderwijs
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IP Ranges API

WHOIS Details


                                                ASHandle:       AS1103
                                                OrgID:          AS1103
                                                ASName:         AS1103
                                                ASNumber:       AS1103
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are 8,957 domain names hosted across 1,522 IP addresses on this ASN.

IP Address Domain Domains on this IP
195.169.119.134 ██████████ 480
131.224.244.92 ██████████ 410
134.221.44.39 █████████ 335
145.74.103.94 ██████ 290
137.224.9.30 ██████ 245
132.229.29.70 ██████████ 228
131.211.194.230 ██████████ 218
137.120.30.67 █████████ 192
194.171.22.145 ███████ 172
132.229.92.35 ██████████ 169

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity

Peers

There are 1,129 peers for this ASN.

Peers Name
AS10099 China Unicom Global
AS10122 NETSTAR (SG) PTE. LTD.
AS1031 PEER 1031 LLC
AS10310 Oath Holdings Inc.
AS1101 IP-EEND BV
AS11019 HAProxy Technologies, Inc.
AS1102 SMEERBOEL BV
AS1104 Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
AS11179 Aryaka Networks, Inc.
AS112 DNS-OARC
AS1124 Universiteit van Amsterdam
AS1126 Vancis Advanced ICT Services
AS1128 SURF B.V.
AS1133 University Twente
AS11358 Tennant Software
AS1136 KPN B.V.
AS1140 Stichting Internet Domeinregistratie Nederland
AS1145 SURF B.V.
AS1147 SURF B.V.
AS1149 SURF B.V.
AS1152 SURF B.V.
AS11537 Internet2
AS1161 SURF B.V.
AS11967 Hop179 LLC
AS1200 Amsterdam Internet Exchange B.V.
AS12189 PhoenixNAP LLC
AS12297 Telecom Armenia AS
AS12306 Plus.line AG
AS12322 Free SAS
AS12329 GLASFASER RUHR GmbH & Co. KG
AS12350 VTX Services SA
AS12355 HeLi NET Telekommunikation GmbH & Co.
AS12399 q.beyond AG
AS12400 Partner Communications Ltd.
AS1241 Forthnet
AS12414 Solcon Internetdiensten B.V.
AS12440 Hughes Network Systems GmbH
AS1248 HERE Global BV
AS12552 GlobalConnect AB
AS12578 SIA Tet
AS12615 Global Communication Net Plc
AS12637 SEEWEB s.r.l.
AS12654 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS1267 WIND TRE S.P.A.
AS12693 e.discom Telekommunikation GmbH
AS12695 LLC Digital Network
AS12703 Pulsant (Scotland) Ltd
AS12713 OTEGlobe
AS12731 IPHH Internet Port Hamburg GmbH
AS12741 Netia SA
AS12759 Stephan Fuss trading as SoftCom Datensysteme
AS12779 IT.Gate S.p.A.
AS12859 BIT BV
AS12876 SCALEWAY S.A.S.
AS12888 Amadeus Data Processing GmbH
AS12897 ENTEGA Medianet GmbH
AS12902 Luna.nl B.V.
AS12969 Vodafone Iceland
AS12993 Sabiedriba ar ierobezotu atbildibu DELSKA Latvia
AS13000 Leon Sp. z o.o.
AS13002 ISIX Communications LLP
AS13030 Init7 (Switzerland) Ltd.
AS13101 TNG Stadtnetz GmbH
AS13122 Manx Telecom Trading Ltd
AS13132 cyberways Informationsdienste GmbH
AS13150 CATO NETWORKS LTD
AS13172 Electroenergien Sistemen Operator EAD
AS13194 Bite IP Network
AS131958 Tama Cable Network Co.,Ltd.
AS13213 UK-2 Limited
AS132203 Tencent Building, Kejizhongyi Avenue
AS132337 Axclusive
AS13237 euNetworks GmbH
AS13249 PRIVATE JOINT STOCK COMPANY "DATAGROUP"
AS13285 TalkTalk Communications Limited
AS132876 Symphony Communication (Thailand) PCL.
AS13289 Krick Management GmbH trading as iWelt GmbH + Co. KG
AS13335 Cloudflare, Inc.
AS13360 Triton Digital
AS133613 MTel telecommunication company ltd.
AS134078 NETPLUZ HOLDINGS PRIVATE LIMITED
AS13445 Cisco Webex LLC
AS135391 AOFEI DATA INTERNATIONAL COMPANY LIMITED
AS136106 PT. Mega Akses Persada
AS136907 HUAWEI CLOUDS
AS137182 BLUE WIRELESS PTE LTD
AS137367 PT iForte Solusi Infotek
AS137409 GSL Networks Pty LTD
AS137490 Navice Consulting
AS138322 Afghan Wireless Communication Company
AS138915 Kaopu Cloud HK Limited
AS139341 ACE
AS139628 Mega Truenet Communication Co., Ltd.
AS13984 SD Data Center
AS139901 Apple Communication Ltd.
AS14061 DigitalOcean, LLC
AS140731 TOHU Public Internet
AS14127 Iland Internet Solutions Corporation
AS14537 Continent 8 LLC
AS14593 Space Exploration Technologies Corporation
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Upstreams

There are 7 upstreams for this ASN.

upstreams Name
AS20562 Broadband Hosting B.V.
AS24785 Broadband Hosting B.V.
AS2603 NORDUnet
AS2914 NTT America, Inc.
AS3257 GTT Communications Inc.
AS6830 Liberty Global B.V.
AS6939 Hurricane Electric LLC
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Downstreams

There are 27 downstreams for this ASN.

Downstreams Name
AS1101 IP-EEND BV
AS1102 SMEERBOEL BV
AS1104 Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
AS112 DNS-OARC
AS1124 Universiteit van Amsterdam
AS1128 SURF B.V.
AS1133 University Twente
AS1140 Stichting Internet Domeinregistratie Nederland
AS1145 SURF B.V.
AS1147 SURF B.V.
AS1149 SURF B.V.
AS1152 SURF B.V.
AS1161 SURF B.V.
AS1200 Amsterdam Internet Exchange B.V.
AS1837 The North Atlantic Treaty Organization
AS1888 Stichting Centrum voor Wiskunde en Informatica
AS203769 Cooperatie KIEN u.a.
AS206130 Stichting Carmel College
AS215088 SIDN Labs lab network
AS25152 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS25182 NPO Nederlandse Publieke Omroep
AS288 European Space Agency (ESA)
AS2914 NTT America, Inc.
AS3257 GTT Communications Inc.
AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS42165 European Commission - Directorate General - Joint Research Centre
AS6939 Hurricane Electric LLC
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Pingable IPs

2,691 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
2001:610:f00:1e::102 AS1103 SURF B.V. 0.30ms from Amsterdam, NL
137.56.243.202 AS1103 SURF B.V. 3.29ms from Amsterdam, NL
130.37.38.5 AS1103 SURF B.V. 4.29ms from Amsterdam, NL
145.102.166.45 AS1103 SURF B.V. 1.82ms from Amsterdam, NL
145.108.245.1 AS1103 SURF B.V. 1.23ms from Amsterdam, NL
145.107.8.65 AS1103 SURF B.V. 0.19ms from Amsterdam, NL
145.0.3.1 AS1103 SURF B.V. 1.26ms from Amsterdam, NL
145.136.157.219 AS1103 SURF B.V. 3.42ms from Amsterdam, NL
145.136.252.4 AS1103 SURF B.V. 0.59ms from Amsterdam, NL
141.252.214.1 AS1103 SURF B.V. 4.59ms from Amsterdam, NL
129.125.95.253 AS1103 SURF B.V. 4.45ms from Amsterdam, NL
131.211.122.155 AS1103 SURF B.V. 0.99ms from Amsterdam, NL
195.169.174.110 AS1103 SURF B.V. 3.77ms from Amsterdam, NL
145.92.240.1 AS1103 SURF B.V. 0.46ms from Amsterdam, NL
145.96.11.253 AS1103 SURF B.V. 0.69ms from Amsterdam, NL
195.169.148.253 AS1103 SURF B.V. 0.92ms from Amsterdam, NL
145.38.184.81 AS1103 SURF B.V. 0.49ms from Amsterdam, NL
145.107.92.3 AS1103 SURF B.V. 1.61ms from Amsterdam, NL
195.169.162.8 AS1103 SURF B.V. 3.45ms from Amsterdam, NL
137.56.47.123 AS1103 SURF B.V. 8.64ms from Amsterdam, NL
195.169.40.1 AS1103 SURF B.V. 0.64ms from Amsterdam, NL
145.92.68.1 AS1103 SURF B.V. 0.64ms from Amsterdam, NL
137.56.39.93 AS1103 SURF B.V. 7.66ms from Amsterdam, NL
145.24.24.20 AS1103 SURF B.V. 2.30ms from Amsterdam, NL
145.108.42.1 AS1103 SURF B.V. 1.15ms from Amsterdam, NL

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
212.84.141.191 AS12414 Solcon Internetdiensten B.V. 1.87ms from Amsterdam, NL
172.5.165.31 AS7018 AT&T Enterprises, LLC 12.34ms from Atlanta, US
60.26.94.143 AS4837 CHINA UNICOM China169 Backbone 6.04ms from Beijing, CN
173.92.130.143 AS11426 Charter Communications Inc 4.67ms from Charlotte, US
219.136.187.31 AS4134 CHINANET-BACKBONE 1.79ms from Guangzhou, CN
61.142.175.15 AS4134 CHINANET-BACKBONE 3.33ms from Guangzhou, CN
47.97.214.175 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.14ms from Hangzhou, CN
41.192.9.31 AS29975 Vodacom 11.27ms from Johannesburg, ZA
109.182.105.127 AS5603 Telekom Slovenije, d.d. 3.47ms from Ljubljana, SI
185.119.224.15 AS203073 G.T. SRL 0.26ms from Milan, IT
149.71.50.63 AS203591 TECNO GENERAL S.R.L 2.53ms from Milan, IT
73.113.151.111 AS7922 Comcast Cable Communications, LLC 12.76ms from Murfreesboro, US
90.14.211.143 AS3215 Orange S.A. 13.47ms from Paris, FR
81.49.255.63 AS3215 Orange S.A. 3.68ms from Paris, FR
35.153.45.15 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
116.43.179.175 AS17858 LG POWERCOMM 2.30ms from Seoul, KR
59.10.234.95 AS4766 Korea Telecom 1.32ms from Seoul, KR
99.228.17.159 AS812 Rogers Communications Canada Inc. 4.17ms from Toronto, CA
101.29.123.255 AS4837 CHINA UNICOM China169 Backbone 10.37ms from Beijing, CN
45.166.67.255 AS267946 MJ TECNOLOGIA DA INFORMACAO LTDA 5.25ms from Brasilia, BR
79.118.225.191 AS8708 DIGI ROMANIA S.A. 2.74ms from Bucharest, RO
75.70.204.159 AS7922 Comcast Cable Communications, LLC 2.92ms from Denver, US
123.96.125.79 AS4134 CHINANET-BACKBONE 11.92ms from Hangzhou, CN
193.31.65.159 AS203649 GO INTERNET LTD 3.94ms from London, GB
184.28.71.175 AS16625 Akamai Technologies, Inc. 0.65ms from Los Angeles, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f3 -m7 145.144.108.249
traceroute to 145.144.108.249 (145.144.108.249): 7 hops max, 52 byte packets
4 [AS37282] 102.130.226.34 124.274 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Abidjan, CI
On

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 AS1103 at robtex.

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