1. All IP Ranges
  2. 145.0.0.0/8
  3. AS1103  | 145.120.0.0/14

145.120.0.0/14

AS1103  ·  SURF B.V.

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Summary

Country Netherlands
Domain surfnet.nl
ASN AS1103
Registry RIPE
ID SURFNET-BLOCKB117

WHOIS Details

inetnum:        145.121.0.0 - 145.121.255.255
netname:        SURFNET-BLOCKB117
descr:          SURFnet bv
descr:          P.O. Box 19035
descr:          3501 DA Utrecht
country:        NL
admin-c:        SNS1-RIPE
tech-c:         SNS1-RIPE
status:         LEGACY
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:        2003-09-09T09:34:05Z
last-modified:  2019-12-04T13:13:06Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

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
nic-hdl:        SNS1-RIPE
abuse-mailbox:  cert@surfcert.nl
mnt-by:         AS1103-MNT
created:        2002-07-09T10:06:06Z
last-modified:  2025-10-01T09:23:01Z
source:         RIPE
e-mail:         noc@surf.nl

route:          145.120.0.0/14
origin:         AS1103
descr:          145.120.0.0/14 aggregate
mnt-by:         AS1103-MNT
notify:         lir@surfnet.nl
created:        2012-04-03T13:39:19Z
last-modified:  2019-03-21T09:01:44Z
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
145.58.0.0/16 AS25182 Publieke Omroep Nederland 65,536
145.218.0.0/16 AS49362 DSV A/S 65,536
145.31.0.0/16 AS42894 Ministerie van Verkeer en Waterstaat/Rijkswaterstaat 65,536
145.247.0.0/16 AS41701 Porkkalankatu 3 65,536
145.50.0.0/16 AS42894 Ministerie van Verkeer en Waterstaat/Rijkswaterstaat 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

Hosted domains

There are 37 domain names hosted across 11 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
145.121.56.161 werkenbijhetvumc.nl 24
145.120.13.114 arubaanseatletiekbond.org 3
145.120.3.135 ledigerf.net 2
145.123.120.164 enlace.fun 1
145.120.13.134 simplus.nu 1
145.120.255.103 sluijter.net 1
145.121.56.193 lhca.nl 1
145.121.56.154 ms-supportaal-acceptatie.nl 1
145.121.56.150 digitaalalzheimercentrum.nl 1
145.121.56.155 ms-supportaal.nl 1
145.121.10.163 capitalpartner.nl 1

Hosted domains API

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Pingable IPs

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

IP Address ASN Details
145.120.66.30 AS1103 SURF B.V. 0.81ms from Amsterdam, NL
145.120.79.156 AS1103 SURF B.V. 0.48ms from Amsterdam, NL
145.120.255.20 AS1103 SURF B.V. 2.29ms from Amsterdam, NL
145.120.0.254 AS1103 SURF B.V. 1.17ms from Amsterdam, NL
145.121.60.2 AS1103 SURF B.V. 1.48ms from Amsterdam, NL
145.120.72.110 AS1103 SURF B.V. 1.59ms from Amsterdam, NL
145.120.78.43 AS1103 SURF B.V. 0.51ms from Amsterdam, NL
145.120.71.86 AS1103 SURF B.V. 0.46ms from Amsterdam, NL
145.120.2.11 AS1103 SURF B.V. 1.47ms from Amsterdam, NL
145.120.3.137 AS1103 SURF B.V. 1.19ms from Amsterdam, NL
145.120.89.138 AS1103 SURF B.V. 0.45ms from Amsterdam, NL
145.121.55.73 AS1103 SURF B.V. 0.79ms from Amsterdam, NL
145.120.77.130 AS1103 SURF B.V. 0.55ms 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
91.126.64.78 AS35699 Adamo Telecom Iberia S.A. 1.20ms from Barcelona, ES
100.21.128.30 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
196.37.44.222 AS3741 Dimension Data 1.19ms from Cape Town, ZA
173.94.202.190 AS11426 Charter Communications Inc 11.58ms from Charlotte, US
166.78.81.254 AS19994 Rackspace Hosting 1.30ms from Chicago, US
72.1.21.190 AS7268 Athenet Internet Services 11.05ms from Chicago, US
119.84.66.30 AS134420 Chongqing Telecom 1.18ms from Chongqing, CN
76.155.211.142 AS7922 Comcast Cable Communications, LLC 5.29ms from Denver, US
103.136.251.254 AS138915 Kaopu Cloud HK Limited 0.24ms from Hong Kong, HK
58.153.19.254 AS4760 HKT Limited 1.10ms from Hong Kong, HK
144.168.123.14 AS22552 eSited Solutions 0.31ms from Los Angeles, US
20.152.58.14 AS8075 Microsoft Corporation 0.73ms from Modiin Ilit, IL
218.100.15.126 AS24229 IX-layers, Inc. 5.79ms from Osaka, JP
40.123.160.126 AS8075 Microsoft Corporation 0.31ms from Quincy, US
54.221.224.190 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
218.159.223.254 AS4766 Korea Telecom 1.25ms from Seoul, KR
121.181.21.126 AS4766 Korea Telecom 5.15ms from Seoul, KR
121.6.133.254 AS9506 Singtel Fibre Broadband 1.25ms from Singapore, SG
125.197.226.206 AS2518 BIGLOBE Inc. 2.49ms from Tokyo, JP
197.9.114.94 AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom) 17.56ms from Tunis, TN
130.255.42.142 AS39812 Closed Joint Stock Company Radiotelephone 2.42ms from Yekaterinburg, RU
24.126.195.14 AS7922 Comcast Cable Communications, LLC 3.87ms from Atlanta, US
147.83.157.222 AS13041 Consorci de Serveis Universitaris de Catalunya 1.67ms from Barcelona, ES
190.210.66.158 AS16814 NSS S.A. 0.20ms from Buenos Aires, AR
75.158.213.238 AS852 TELUS Communications Inc. 6.06ms from Calgary, CA

Traceroute

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

$
traceroute -a -n -q1 -m8 145.122.27.95
traceroute to 145.122.27.95 (145.122.27.95): 8 hops max, 52 byte packets
1 [AS15169] 66.249.95.10 86.377 ms
2 *
4 [AS1103] 145.145.176.41 96.443 ms
5 [AS1103] 145.145.8.81 95.637 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Columbus, US
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.

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