Autonomous System details

AS1103

SURF B.V.  ·  surf.nl

Netherlands

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AS1103 – SURF B.V.

Field Value
Country Netherlands
Website surf.nl
Hosted domains 8,916
IPv4 addresses 7,204,096
IPv6 addresses 633,827,717,965,753,930,006,701,015,040
ASN type Education
Registry ripe
Allocated 23 years ago on Sep 23, 2002
Updated 10 months ago on Apr 30, 2025

IP Ranges

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 SIVON 262,144
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
145.100.0.0/15 SURFsara 131,072
145.124.0.0/15 ASTRON 131,072
145.136.0.0/15 Hogeschool Rotterdam 131,072
129.125.0.0/16 Rijksuniversiteit Groningen 65,536
130.37.0.0/16 Vrije Universiteit Amsterdam 65,536
131.174.0.0/16 Radboud Universiteit 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
137.56.0.0/16 Universiteit van Tilburg 65,536
137.120.0.0/16 P.O.Box 616, 6200 MD, Maastricht, The Netherlands 65,536
137.224.0.0/16 Wageningen University & Research 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
145.5.0.0/16 Erasmus Universiteit Rotterdam 65,536
145.9.0.0/16 Deltares 65,536
145.19.0.0/16 HZ University of Applied Sciences 65,536
145.20.0.0/16 Open Universiteit Nederland 65,536
145.23.0.0/16 Koninklijk Nederlands Meteorologisch Instituut 65,536
145.24.0.0/16 Hogeschool Rotterdam 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 SURF B.V. 65,536
145.44.0.0/16 Christelijke Hogeschool Windesheim 65,536
145.51.0.0/16 Hogeschool Rotterdam 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 Hogeschool 65,536
145.90.0.0/16 SURF B.V. 65,536
145.91.0.0/16 Zuyd Hogeschool 65,536
145.95.0.0/16 SURF B.V. 65,536
145.96.0.0/16 SURFnet bv 65,536
145.98.0.0/16 Universiteit Maastricht Lab 65,536
145.102.0.0/16 Stichting De Digitale Sleutel 65,536
145.103.0.0/16 Stichting GlasLokaal 65,536
145.107.0.0/16 Universiteit Utrecht 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 Grafisch Lyceum Rotterdam 65,536
145.126.0.0/16 SURFnet bv 65,536
145.138.0.0/16 ROC Aventus 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 Koninklijk Nederlands Instituut voor Zeeonderzoek - NIOZ 32,768
145.127.0.0/17 Universiteit Maastricht (UM) 32,768
145.97.64.0/18 ROC Oost-Nederland 16,384
145.97.128.0/18 Rijksuniversiteit Groningen 16,384
145.97.192.0/18 SURF B.V. 16,384
145.116.64.0/18 ROC Mondriaan 16,384
145.116.128.0/18 Radboud Universiteit 16,384
145.137.128.0/18 Radboud Universiteit 16,384
145.116.224.0/19 ROC Oost-Nederland 8,192
145.97.0.0/20 SURF B.V. 4,096
145.97.48.0/20 ROC Oost-Nederland 4,096
145.116.192.0/20 Zeeuwse Bibliotheek 4,096
194.13.16.0/20 Inspectie van het Onderwijs 4,096
194.104.240.0/20 Zuyd Hogeschool 4,096
145.97.24.0/21 Radboud Universiteit 2,048
194.13.112.0/21 St. Antonius Ziekenhuis 2,048
145.97.16.0/22 Hogeschool Leiden 1,024
145.97.20.0/22 SURFnet SURFcloud 1,024
145.107.24.0/22 Radboud Universiteit 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 Máxima Medisch Centrum 1,024
194.26.8.0/22 Fontys Hogeschool 1,024
194.26.12.0/22 Fontys Hogeschool 1,024
192.16.188.0/23 SURFnet bv 512
192.42.114.0/23 Nederlands Kanker Instituut 512
194.104.124.0/23 Amphia Ziekenhuis 512
145.98.16.0/24 SURF B.V. 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
192.104.140.0/24 Centraal Planbureau 256
193.176.235.0/24 Koninklijke Nederlandse Akademie van Wetenschappen 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 Máxima Medisch Centrum
2001:67c:262c::/48 Dienst Uitvoering Onderwijs - DUO
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WHOIS Details

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                                                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 8,916 domain names hosted across 1,520 IP addresses on this ASN.

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IP Address Domain Domains on this IP
195.169.119.134 ██████████ 484
131.224.244.92 ██████████ 408
145.74.103.94 ██████ 290
134.221.44.39 ██████████ 260
132.229.29.70 ██████████ 232
131.211.194.230 ██████████ 213
137.120.30.67 █████████ 206
137.224.9.30 ██████████ 203
132.229.92.35 ██████████ 169
194.171.22.145 ██████████ 161

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Peers

There are 1,063 peers for this ASN.

Peers Name
AS10099 China Unicom Global
AS10122 NETSTAR (SG) PTE. LTD.
AS1031 PEER 1031 LLC
AS10310 Yahoo Holdings Inc.
AS1101 IP-EEND BV
AS11019 HAProxy Technologies, Inc.
AS1102 SMEERBOEL BV
AS1104 Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
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.
AS1152 SURF B.V.
AS11537 Internet2
AS1161 SURF B.V.
AS1162 SURF B.V.
AS11967 Hop179 LLC
AS1199 SURF B.V.
AS1200 Amsterdam Internet Exchange B.V.
AS12189 PhoenixNAP LLC
AS12297 Telecom Armenia AS
AS12322 Free SAS
AS12329 GLASFASER RUHR GmbH & Co. KG
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
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
AS12871 KPN B.V.
AS12876 SCALEWAY S.A.S.
AS12888 Amadeus GmbH
AS12897 ENTEGA Medianet GmbH
AS12902 Ekco 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
AS131219 Indosat Singapore Pte. Ltd.
AS13122 Manx Telecom Trading Ltd
AS13132 cyberways Informationsdienste GmbH
AS13150 CATO NETWORKS LTD
AS13194 Bite IP Network
AS131958 Tama Cable Network Co.,Ltd.
AS13213 THG HOSTING 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.
AS133504 PAOCLOUD CO., LTD.
AS13360 Triton Digital
AS13414 Twitter Inc.
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
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
AS14127 Iland Internet Solutions Corporation
AS14537 Continent 8 LLC
AS14593 Space Exploration Technologies Corporation
AS14630 Invesco Group Services, Inc.
AS14840 BR.Digital Telecom
AS14907 Wikimedia Foundation Inc.
AS15169 Google LLC
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ASN API & Database

Upstreams

There are 6 upstreams for this ASN.

upstreams Name
AS20562 Broadband Hosting B.V.
AS24785 Broadband Hosting B.V.
AS2914 NTT America, Inc.
AS3257 GTT Communications Inc.
AS6830 Liberty Global Europe Holding B.V.
AS6939 Hurricane Electric LLC
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ASN API & Database

Downstreams

There are 28 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.
AS1152 SURF B.V.
AS1161 SURF B.V.
AS1200 Amsterdam Internet Exchange B.V.
AS12654 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
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
AS6830 Liberty Global Europe Holding B.V.
AS6939 Hurricane Electric LLC
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ASN API & Database

Pingable IPs

2,558 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
141.252.185.1 AS1103 SURF B.V. 4.38ms from Amsterdam, NL
145.90.229.129 AS1103 SURF B.V. 0.53ms from Amsterdam, NL
145.29.148.193 AS1103 SURF B.V. 4.37ms from Amsterdam, NL
145.126.85.81 AS1103 SURF B.V. 5.91ms from Amsterdam, NL
192.87.204.130 AS1103 SURF B.V. 1.22ms from Amsterdam, NL
145.20.128.12 AS1103 SURF B.V. 5.57ms from Amsterdam, NL
130.37.15.129 AS1103 SURF B.V. 1.01ms from Amsterdam, NL
2001:67c:262c:880::abcd AS1103 SURF B.V. 3.46ms from Amsterdam, NL
137.56.175.238 AS1103 SURF B.V. 3.33ms from Amsterdam, NL
145.107.114.37 AS1103 SURF B.V. 2.95ms from Amsterdam, NL
145.38.186.119 AS1103 SURF B.V. 0.56ms from Amsterdam, NL
131.211.75.128 AS1103 SURF B.V. 1.30ms from Amsterdam, NL
145.100.105.112 AS1103 SURF B.V. 0.59ms from Amsterdam, NL
194.171.92.1 AS1103 SURF B.V. 3.00ms from Amsterdam, NL
137.224.155.254 AS1103 SURF B.V. 4.92ms from Amsterdam, NL
145.89.38.3 AS1103 SURF B.V. 2.31ms from Amsterdam, NL
145.102.6.127 AS1103 SURF B.V. 3.49ms from Amsterdam, NL
145.19.5.242 AS1103 SURF B.V. 4.85ms from Amsterdam, NL
145.144.245.0 AS1103 SURF B.V. 2.97ms from Amsterdam, NL
141.252.80.1 AS1103 SURF B.V. 4.47ms from Amsterdam, NL
145.108.39.129 AS1103 SURF B.V. 1.25ms from Amsterdam, NL
131.174.12.41 AS1103 SURF B.V. 3.58ms from Amsterdam, NL
145.136.144.2 AS1103 SURF B.V. 1.83ms from Amsterdam, NL
145.136.151.167 AS1103 SURF B.V. 3.44ms from Amsterdam, NL
131.211.45.73 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
20.39.42.127 AS8075 Microsoft Corporation 0.40ms from Ashburn, US
108.244.238.63 AS7018 AT&T Enterprises, LLC 12.97ms from Atlanta, US
117.232.9.175 AS9829 National Internet Backbone 11.95ms from Bengaluru, IN
84.197.56.31 AS6848 Telenet BV 7.96ms from Brussels, BE
72.2.79.255 AS399512 Suite224 Internet 6.42ms from Buffalo, US
173.173.175.207 AS11427 Charter Communications Inc 16.41ms from Dallas, US
188.94.250.111 AS15817 Mittwald CM Service GmbH und Co. KG 3.21ms from Hamburg, DE
113.60.130.255 AS17849 SK Broadband Co Ltd 2.23ms from Incheon, KR
88.233.180.127 AS9121 Turk Telekomunikasyon Anonim Sirketi 5.47ms from Istanbul, TR
47.143.196.127 AS5650 Frontier Communications of America, Inc. 9.07ms from Los Angeles, US
84.33.86.255 AS35612 EOLO S.p.A. 4.86ms from Milan, IT
60.145.177.111 AS17676 SoftBank Corp. 3.55ms from Osaka, JP
67.222.33.191 AS31898 Oracle Corporation 0.16ms from Phoenix, US
3.84.95.111 AS14618 Amazon.com, Inc. 0.42ms from Reston, US
175.233.32.223 AS4766 Korea Telecom 2.08ms from Seoul, KR
68.187.254.159 AS20115 Charter Communications LLC 8.72ms from St. Louis, US
106.214.83.255 AS24560 Bharti Airtel Ltd., Telemedia Services 6.03ms from Delhi, IN
86.147.104.111 AS2856 British Telecommunications PLC 2.33ms from Erith, GB
90.214.144.95 AS5607 Sky UK Limited 2.79ms from Erith, GB
47.97.214.175 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.51ms from Hangzhou, CN
46.46.95.191 AS48045 TOV "Flagman Telecom" 8.34ms from Kyiv, UA
67.76.65.255 AS11398 CenturyLink Communications, LLC 2.29ms from Las Vegas, US
88.68.115.207 AS3209 Vodafone GmbH 3.46ms from Munich, DE
67.82.131.143 AS6128 Cablevision Systems Corp. 7.78ms from New York City, US
176.45.46.191 AS25019 Saudi Telecom Company JSC 1.75ms from Riyadh, SA

Traceroute

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

$
traceroute -a -n -q1 -m5 145.174.133.179
traceroute to 145.174.133.179 (145.174.133.179): 5 hops max, 52 byte packets
1 [AS140627] 103.112.0.1 0.194 ms
2 [AS140627] 103.151.64.29 108.908 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Agana Heights Village, GU
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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