1. All IP Ranges
  2. 145.0.0.0/8
  3. AS1103  | 145.144.0.0/12

145.144.0.0/12

AS1103  ·  SURF B.V.

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

Summary

Country Netherlands
Domain surfnet.nl
ASN AS1103
Registry RIPE
ID SURFNET-BLOCKB140

WHOIS Details

inetnum:        145.144.0.0 - 145.144.255.255
netname:        SURFNET-BLOCKB140
org:            ORG-Sb3-RIPE
descr:          SURFnet bv
descr:          P.O. Box 19035
descr:          3501 DA Utrecht
country:        NL
admin-c:        SNS1-RIPE
tech-c:         SNS1-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
remarks:        -------------------------------------------------
remarks:        Use cert@surfnet.nl to report security incidents.
remarks:        See http://cert.surfnet.nl/ for more information.
remarks:        -------------------------------------------------
mnt-by:         SN-LIR-MNT
mnt-lower:      SN-LIR-MNT
mnt-routes:     SN-LIR-MNT
mnt-irt:        irt-SURFcert
notify:         lir@surfnet.nl
created:        2003-09-09T09:34:24Z
last-modified:  2017-06-12T12:10:24Z
source:         RIPE
abuse-email:    cert@surfcert.nl
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
e-mail:         lir@surf.nl
admin-c:        HT3384-RIPE
admin-c:        MK512-RIPE
admin-c:        SNS1-RIPE
admin-c:        WB311-RIPE
admin-c:        NO17-RIPE
admin-c:        RS957-RIPE
admin-c:        JO5863-RIPE
admin-c:        MM57501-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:  2023-02-21T13:35:38Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      undefined

role:           SURF Network Maintainer
address:        Kantoren Hoog Overborch (Hoog Catharijne)
address:        Moreelsepark 48, 3511 EP Utrecht
address:        Postbus 19035, 3501 DA Utrecht
phone:          +31 88 7873000
admin-c:        WB311-RIPE
tech-c:         NO17-RIPE
tech-c:         WB311-RIPE
tech-c:         MK512-RIPE
tech-c:         JO5863-RIPE
tech-c:         MM57501-RIPE
tech-c:         BW4086-RIPE
tech-c:         EV4604-RIPE
nic-hdl:        SNS1-RIPE
abuse-mailbox:  cert@surfcert.nl
mnt-by:         AS1103-MNT
created:        2002-07-09T10:06:06Z
last-modified:  2025-11-05T14:44:07Z
source:         RIPE
e-mail:         noc@surf.nl

route:          145.144.0.0/12
descr:          SURFnet CIDR Block II c
origin:         AS1103
mnt-by:         AS1103-MNT
mnt-lower:      AS1103-MNT
mnt-routes:     AS1103-MNT
created:        2018-07-05T14:42:26Z
last-modified:  2018-07-05T14:42:26Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 145.0.0.0/8

Range ASN Company Num of IPs
145.132.0.0/15 AS8075 Microsoft Limited 131,072
145.31.0.0/16 AS42894 Ministerie van Verkeer en Waterstaat/Rijkswaterstaat 65,536
145.50.0.0/16 AS42894 Ministerie van Verkeer en Waterstaat/Rijkswaterstaat 65,536
145.247.0.0/16 AS41701 Porkkalankatu 3 65,536
145.4.0.0/16 AS702 PGGM N.V. 65,536
145.13.0.0/16 AS21286 F&IT RIM - OsirisNG, Zoetermeer 65,536
145.82.0.0/16 AS25019 Saudi Telecom Company JSC 65,536
145.245.0.0/16 AS2047 Hoffmann - La Roche Ltd. 65,536
145.244.0.0/16 AS210543 Steiermaerkische Krankenanstalten GesmbH 65,536
145.222.0.0/16 AS21286 KPN B.V. 65,536
145.238.0.0/16 AS2200 Observatoire de Paris 65,536
145.232.0.0/16 AS15675 Etat de Vaud, CCT 65,536
145.236.0.0/16 AS1902 Budapest 65,536
145.55.0.0/16 AS16509 A100 ROW Inc 65,536
145.234.0.0/16 AS206567 Tamedia AG 65,536
145.243.0.0/16 AS200757 Axel Springer SE 65,536
145.126.0.0/16 AS1103 SURFnet bv 65,536
145.108.0.0/16 AS1103 Vrije Universiteit Amsterdam 65,536
145.239.0.0/16 AS16276 OVH SAS 65,536
145.220.0.0/16 AS1101 SURF B.V. 65,536
145.230.0.0/16 AS12663 Vodafone Group Services GmbH 65,536
145.17.0.0/16 AS16509 A100 ROW Inc 65,536
145.243.0.0/16 AS16509 Axel Springer SE 65,536
145.221.0.0/16 AS15625 ING Bank NV 65,536
145.4.0.0/16 AS1136 PGGM N.V. 65,536
145.68.0.0/16 AS1136 ISC-NL 65,536
145.53.0.0/16 AS1136 KPN B.V. 65,536
145.0.0.0/16 AS1103 SURFnet bv 65,536
145.86.0.0/16 AS15830 Medisch Spectrum Twente 65,536
145.52.0.0/16 AS1103 Haagse Hogeschool 65,536
145.76.0.0/16 AS1103 Hogeschool Saxion 65,536
145.81.0.0/16 AS1103 SURFnet bv 65,536
145.85.0.0/16 AS1103 Fontys Hogescholen 65,536
145.9.0.0/16 AS1103 Deltares 65,536
145.91.0.0/16 AS1103 Hogeschool Zuyd 65,536
145.95.0.0/16 AS1103 SURF B.V. 65,536
145.19.0.0/16 AS1103 Hogeschool Zeeland Network 65,536
145.20.0.0/16 AS1103 Open Universiteit 65,536
145.7.0.0/16 AS1136 KPN B.V. 65,536
145.23.0.0/16 AS1103 Koninklijk Nederlands Meteorologisch Instituut 65,536
145.251.0.0/16 AS12552 Systembolaget AB 65,536
145.24.0.0/16 AS1103 Hogeschool Rotterdam & Omstreken 65,536
145.119.0.0/16 AS1136 ISC-NL 65,536
145.33.0.0/16 AS1103 Hanzehogeschool Groningen 65,536
145.103.0.0/16 AS1103 Stichting GlasLokaal 65,536
145.37.0.0/16 AS1103 Hanzehogeschool Groningen 65,536
145.94.0.0/16 AS1128 Delft University of Technology Network 65,536
145.110.0.0/16 AS1104 NIKHEF 65,536
145.41.0.0/16 AS1103 SURF B.V. 65,536
145.44.0.0/16 AS1103 Christelijke Hogeschool Windesheim 65,536

Hosted domains

There are 8 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
145.144.245.239 wopnnzoz.online 3
145.144.245.149 pwning.nl 1
145.148.244.248 magictron.eu 1
145.144.245.6 makaay.nl 1
145.155.189.195 metaverifiedsupport.net 1
145.145.18.178 xs4some.net 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
Read more

Pingable IPs

923 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
145.145.30.85 AS1103 SURF B.V. 1.97ms from Amsterdam, NL
145.145.4.185 AS1103 SURF B.V. 0.50ms from Amsterdam, NL
145.145.23.14 AS1103 SURF B.V. 1.76ms from Amsterdam, NL
145.145.10.17 AS1103 SURF B.V. 0.81ms from Amsterdam, NL
145.145.19.49 AS1103 SURF B.V. 0.49ms from Amsterdam, NL
145.145.145.145 AS1103 SURF B.V. 0.49ms from Amsterdam, NL
145.145.20.38 AS1103 SURF B.V. 0.46ms from Amsterdam, NL
145.145.1.102 AS1103 SURF B.V. 0.35ms from Amsterdam, NL
145.145.28.25 AS1103 SURF B.V. 0.79ms from Amsterdam, NL
145.145.166.34 AS1103 SURF B.V. 0.43ms from Amsterdam, NL
145.145.36.4 AS1103 SURF B.V. 1.61ms from Amsterdam, NL
145.145.0.104 AS1103 SURF B.V. 0.48ms from Amsterdam, NL
145.145.35.29 AS1103 SURF B.V. 1.38ms from Amsterdam, NL
145.145.128.6 AS1103 SURF B.V. 0.43ms from Amsterdam, NL
145.145.127.42 AS1103 SURF B.V. 1.77ms from Amsterdam, NL
145.145.17.33 AS1103 SURF B.V. 0.64ms from Amsterdam, NL
145.145.2.243 AS1103 SURF B.V. 0.54ms from Amsterdam, NL
145.145.170.81 AS1103 SURF B.V. 3.23ms from Amsterdam, NL
145.145.12.11 AS1103 SURF B.V. 0.54ms from Amsterdam, NL
145.146.1.1 AS1103 SURF B.V. 0.70ms from Amsterdam, NL
145.145.31.5 AS1103 SURF B.V. 3.78ms from Amsterdam, NL
145.145.34.98 AS1103 SURF B.V. 0.56ms from Amsterdam, NL
145.145.26.109 AS1103 SURF B.V. 0.61ms from Amsterdam, NL
145.145.16.38 AS1103 SURF B.V. 0.80ms from Amsterdam, NL
145.144.2.4 AS1103 SURF B.V. 0.86ms 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
67.235.230.204 AS209 CenturyLink Communications, LLC 11.13ms from Atlanta, US
209.91.123.108 AS852 TELUS Communications Inc. 0.62ms from Calgary, CA
98.30.118.60 AS10796 Charter Communications Inc 11.08ms from Columbus, US
90.132.247.92 AS1257 Tele2 Sverige AB 3.90ms from Falkenberg, SE
109.254.3.60 AS20590 Donbass Electronic Communications Ltd. 8.56ms from Krasnodar, RU
86.11.86.28 AS5089 Virgin Media Limited 7.25ms from London, GB
72.207.187.140 AS22773 Cox Communications Inc. 9.29ms from Los Angeles, US
66.24.173.108 AS11351 Charter Communications Inc 16.84ms from New York City, US
62.210.170.44 AS12876 SCALEWAY S.A.S. 0.58ms from Paris, FR
211.64.104.12 AS4538 China Education and Research Network Center 6.79ms from Qingdao, CN
90.228.163.140 AS3301 Telia Company AB 0.61ms from Stockholm, SE
3.114.42.12 AS16509 Amazon.com, Inc. 0.19ms from Tokyo, JP
210.152.104.60 AS4694 IDC Frontier Inc. 3.61ms from Tokyo, JP
158.197.128.28 AS2607 Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET 5.62ms from Bratislava, SK
81.182.240.28 AS5483 Magyar Telekom Plc. 1.00ms from Budapest, HU
20.199.224.188 AS8075 Microsoft Corporation 0.64ms from Geneve, CH
121.54.161.220 AS132839 POWER LINE DATACENTER 0.98ms from Hong Kong, HK
155.0.254.12 AS37532 Zambia Research and Education Network (ZAMREN) 14.77ms from Lusaka, ZM
92.173.202.204 AS3215 Orange S.A. 0.83ms from Marseille, FR
71.105.155.220 AS701 Verizon Business 3.31ms from New York City, US
158.201.236.236 AS7524 ITEC HANKYU HANSHIN CO.,LTD. 0.65ms from Osaka, JP
109.81.189.172 AS5610 O2 Czech Republic, a.s. 6.32ms from Prague, CZ
34.64.54.44 AS396982 Google LLC 0.07ms from Seoul, KR
115.11.167.28 AS4766 Korea Telecom 4.56ms from Seoul, KR
125.156.187.28 AS4766 Korea Telecom 6.70ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 145.151.66.60
traceroute to 145.151.66.60 (145.151.66.60): 6 hops max, 52 byte packets
3 [] 185.1.160.38 0.731 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs