All IP Ranges
145.0.0.0/8
AS1103 | 145.38.0.0/15

145.38.0.0/15

AS1103 · SURF B.V.

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Summary

Country	Netherlands
Domain	surfsara.nl
ASN	AS1103
Registry	RIPE
ID	SURFSARA-CLUSTER-NETWORK

WHOIS Details

inetnum:        145.38.0.0 - 145.38.255.255
netname:        SURFsara-Cluster-network
descr:          SURFsara reken cluster
descr:          Science Park Watergraafsmeer (WTCW)
descr:          Amsterdam
country:        NL
admin-c:        SURF1-RIPE
tech-c:         SURF1-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-by:         SURF-AUTO-MNT
mnt-irt:        irt-SURFcert
created:        2003-09-09T09:33:43Z
last-modified:  2025-10-02T17:29:19Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

role:           SURFsara NOC
address:        Science Park 140
address:        1098 XG Amsterdam
address:        The Netherlands
phone:          +31 20 8001300
e-mail:         noc@surfsara.nl
admin-c:        FD4243-RIPE
tech-c:         FD4243-RIPE
nic-hdl:        SURF1-RIPE
abuse-mailbox:  abuse@surfsara.nl
notify:         noc@surfsara.nl
mnt-by:         AS1162-MNT
created:        2013-04-18T15:26:58Z
last-modified:  2013-10-21T12:42:13Z
source:         RIPE

route:          145.38.0.0/15
descr:          UMCG + reserved
origin:         AS1103
notify:         lir@surfnet.nl
mnt-by:         AS1103-MNT
created:        2004-08-26T12:57:00Z
last-modified:  2019-03-21T09:01:45Z
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
145.82.0.0/16	AS25019	Saudi Telecom Company JSC	65,536
145.95.0.0/16	AS1103	SURF B.V.	65,536
145.13.0.0/16	AS21286	F&IT RIM - OsirisNG, Zoetermeer	65,536
145.243.0.0/16	AS200757	Axel Springer SE	65,536
145.238.0.0/16	AS2200	Observatoire de Paris	65,536
145.220.0.0/16	AS1101	SURF B.V.	65,536
145.236.0.0/16	AS1902	Budapest	65,536
145.55.0.0/16	AS16509	A100 ROW Inc	65,536
145.244.0.0/16	AS210543	Steiermaerkische Krankenanstalten GesmbH	65,536
145.86.0.0/16	AS15830	Medisch Spectrum Twente	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
145.232.0.0/16	AS15675	Etat de Vaud, CCT	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
145.234.0.0/16	AS206567	Tamedia AG	65,536
145.0.0.0/16	AS1103	SURFnet bv	65,536
145.94.0.0/16	AS1128	Delft University of Technology Network	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
145.245.0.0/16	AS2047	Hoffmann - La Roche Ltd.	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
145.18.0.0/16	AS1124	Universiteit van Amsterdam	65,536
145.41.0.0/16	AS1103	SURF B.V.	65,536
145.110.0.0/16	AS1104	NIKHEF	65,536
145.44.0.0/16	AS1103	Christelijke Hogeschool Windesheim	65,536
145.53.0.0/16	AS1136	KPN B.V.	65,536
145.5.0.0/16	AS1103	Erasmus Universiteit Rotterdam	65,536
145.117.0.0/16	AS1103	Academic Medical Centre	65,536
145.51.0.0/16	AS1103	Hogeschool Rotterdam & Omstreken	65,536
145.222.0.0/16	AS21286	KPN B.V.	65,536

Hosted domains

There are 29 domain names hosted across 27 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
145.38.218.42	datasetregister.nl	3
145.38.196.238	ikonderzoekmee.nl	2
145.38.186.187	ggcrowd.app	1
145.38.189.247	dnabarcoder.gq	1
145.38.186.2	archsysimg.online	1
145.38.189.60	fysiekezelfredzaamheid.nl	1
145.38.191.242	opencausal.org	1
145.38.191.156	retrofiteuropegroup.com	1
145.38.189.206	dnabarcoder.org	1
145.38.192.69	sequtrecht.nl	1
145.38.193.181	my-enquete.nl	1
145.38.197.78	gap3consortium.org	1
145.38.185.8	ed2c.nl	1
145.38.184.100	mkb-demonstrator.site	1
145.38.187.233	umo-facility.nl	1
145.38.184.32	stoopstestdomein.online	1
145.38.196.64	f-a-m-e.org	1
145.38.207.15	cos-ocs.eu	1
145.38.195.163	mycoai.org	1
145.38.201.110	eduwallet.nl	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

2,802 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
145.38.250.103	AS1103 SURF B.V.	`0.48ms` from Amsterdam, NL
145.38.16.136	AS1103 SURF B.V.	`0.43ms` from Amsterdam, NL
145.38.251.234	AS1103 SURF B.V.	`0.48ms` from Amsterdam, NL
145.38.199.173	AS1103 SURF B.V.	`0.45ms` from Amsterdam, NL
145.38.20.46	AS1103 SURF B.V.	`0.41ms` from Amsterdam, NL
145.38.188.67	AS1103 SURF B.V.	`0.43ms` from Amsterdam, NL
145.38.190.244	AS1103 SURF B.V.	`0.45ms` from Amsterdam, NL
145.38.232.1	AS1103 SURF B.V.	`0.47ms` from Amsterdam, NL
145.38.217.160	AS1103 SURF B.V.	`0.46ms` from Amsterdam, NL
145.38.208.3	AS1103 SURF B.V.	`0.48ms` from Amsterdam, NL
145.38.198.73	AS1103 SURF B.V.	`0.46ms` from Amsterdam, NL
145.38.224.1	AS1103 SURF B.V.	`0.46ms` from Amsterdam, NL
145.38.38.61	AS1103 SURF B.V.	`0.41ms` from Amsterdam, NL
145.38.4.98	AS1103 SURF B.V.	`0.41ms` from Amsterdam, NL
145.38.197.176	AS1103 SURF B.V.	`0.46ms` from Amsterdam, NL
145.38.201.182	AS1103 SURF B.V.	`0.87ms` from Amsterdam, NL
145.38.19.72	AS1103 SURF B.V.	`0.44ms` from Amsterdam, NL
145.38.42.69	AS1103 SURF B.V.	`0.48ms` from Amsterdam, NL
145.38.195.29	AS1103 SURF B.V.	`0.45ms` from Amsterdam, NL
145.38.207.123	AS1103 SURF B.V.	`0.48ms` from Amsterdam, NL
145.38.205.234	AS1103 SURF B.V.	`0.47ms` from Amsterdam, NL
145.38.2.78	AS1103 SURF B.V.	`0.42ms` from Amsterdam, NL
145.38.184.1	AS1103 SURF B.V.	`0.44ms` from Amsterdam, NL
145.38.18.13	AS1103 SURF B.V.	`0.41ms` from Amsterdam, NL
145.38.31.3	AS1103 SURF B.V.	`0.45ms` 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
98.18.38.159	AS7029 Windstream Communications LLC	`10.21ms` from Atlanta, US
162.157.33.111	AS852 TELUS Communications Inc.	`5.00ms` from Calgary, CA
91.40.189.223	AS3320 Deutsche Telekom AG	`3.56ms` from Frankfurt am Main, DE
109.203.63.223	AS39544 VOe multimedia SA	`8.53ms` from Geneve, CH
91.37.59.111	AS3320 Deutsche Telekom AG	`3.67ms` from Hamburg, DE
66.192.29.111	AS3356 Level 3 Parent, LLC	`1.95ms` from Murfreesboro, US
180.108.155.255	AS4134 CHINANET-BACKBONE	`4.01ms` from Nanjing, CN
122.6.90.95	AS4134 CHINANET-BACKBONE	`5.37ms` from Qingdao, CN
122.201.92.63	AS38719 Dreamscape Networks Limited	`0.23ms` from Sydney, AU
218.18.249.223	AS4134 CHINANET-BACKBONE	`1.39ms` from Guangzhou, CN
199.193.165.31	AS1423 Rainbow Communications, L.L.C.	`3.88ms` from Kansas City, US
220.164.200.79	AS4134 CHINANET-BACKBONE	`5.34ms` from Kunming, CN
35.176.77.95	AS16509 Amazon.com, Inc.	`0.13ms` from London, GB
117.80.37.79	AS4134 CHINANET-BACKBONE	`4.22ms` from Nanjing, CN
82.164.66.191	AS2119 Telenor Norge AS	`5.77ms` from Oslo, NO
47.107.254.175	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.58ms` from Shenzhen, CN
95.194.28.31	AS3301 Telia Company AB	`9.46ms` from Stockholm, SE
171.121.11.95	AS4837 CHINA UNICOM China169 Backbone	`6.60ms` from Taiyuan, CN
34.130.123.191	AS396982 Google LLC	`0.10ms` from Toronto, CA
101.40.64.63	AS4847 China Networks Inter-Exchange	`3.52ms` from Beijing, CN
119.50.199.255	AS4837 CHINA UNICOM China169 Backbone	`6.15ms` from Changchun, CN
218.77.223.255	AS4134 CHINANET-BACKBONE	`2.39ms` from Haikou, CN
95.81.10.207	AS15943 wilhelm.tel GmbH	`0.47ms` from Hamburg, DE
122.152.175.79	AS4637 Telstra Global	`0.84ms` from Hong Kong, HK
106.214.183.255	AS24560 Bharti Airtel Ltd., Telemedia Services	`1.28ms` from Kolkata, IN

Traceroute

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

traceroute -a -n -q1 -f3 145.38.232.3

traceroute to 145.38.232.3 (145.38.232.3): 64 hops max, 52 byte packets

3 [] 193.239.117.149 1.197 ms

4 [AS1103] 145.145.34.49 2.037 ms

5 [AS1103] 145.145.34.50 1.586 ms

6 [AS1103] 145.100.2.19 1.096 ms

7 [AS1103] 145.100.2.25 1.426 ms

8 [AS1103] 145.38.232.3 0.493 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On December 29th 2025

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