All IP Ranges
145.0.0.0/8
AS1103 | 145.136.0.0/15

145.136.0.0/15

AS1103 · SURF B.V.

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Summary

Country	Netherlands
Domain	hro.nl
ASN	AS1103
Registry	RIPE
ID	HRONET

WHOIS Details

inetnum:        145.137.0.0 - 145.137.127.255
netname:        HRONET
descr:          Hogeschool Rotterdam & Omstreken
country:        NL
admin-c:        JS15878-RIPE
admin-c:        WP1617-RIPE
admin-c:        FV4808-RIPE
tech-c:         JS15878-RIPE
tech-c:         WP1617-RIPE
tech-c:         FV4808-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-by:         SURF-AUTO-MNT
mnt-irt:        irt-SURFcert
created:        2018-11-08T13:45:32Z
last-modified:  2025-10-02T17:29:15Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

person:         Frans Verschoor
address:        Hogeschool Rotterdam
address:        Museumpark 40
address:        P.O. Box 25035
address:        3001 HA Rotterdam
address:        The Netherlands
phone:          +31 (0)10 7944237
fax-no:         +31 (0)10 7944360
nic-hdl:        FV4808-RIPE
mnt-by:         SN-LIR-MNT
created:        2014-03-24T17:12:33Z
last-modified:  2014-03-24T17:12:33Z
source:         RIPE

person:         Jeffry Sleddens
address:        Hogeschool Rotterdam
address:        Museumpark 40
address:        P.O. Box 25035
address:        3001 HA Rotterdam
address:        The Netherlands
phone:          +31 (0)10 2414415
fax-no:         +31 (0)10 2414360
e-mail:         j.p.g.sleddens@hro.nl
nic-hdl:        JS15878-RIPE
notify:         j.p.g.sleddens@hro.nl
notify:         lir@SURFnet.nl
created:        2002-01-05T16:54:48Z
last-modified:  2012-03-27T08:30:27Z
source:         RIPE
mnt-by:         HR-LIR-MNT

person:         Wouter Paalvast
address:        Hogeschool Rotterdam
address:        Museumpark 40
address:        P.O. Box 25035
address:        3001 HA Rotterdam
address:        The Netherlands
phone:          +31 (0)10 7941337
fax-no:         +31 (0)10 7944360
nic-hdl:        WP1617-RIPE
mnt-by:         SN-LIR-MNT
created:        2014-03-24T17:11:46Z
last-modified:  2014-03-24T17:11:46Z
source:         RIPE

route:          145.136.0.0/15
origin:         AS1103
mnt-by:         AS1103-MNT
created:        2020-04-09T13:18:05Z
last-modified:  2020-04-09T13:19:24Z
source:         RIPE
mnt-routes:     AS1103-MNT
mnt-lower:      AS1103-MNT
descr:          SURFnet CIDR Block II b-a

Overlapping Ranges

BGP prefixes that are contained by 145.136.0.0/15

Range	ASN	Company	Num of IPs
145.137.128.0/18	AS1103	Radboud Universiteit Nijmegen	16,384

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
145.26.0.0/16	AS3917	Shell Information Technology International	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
145.58.0.0/16	AS25182	Publieke Omroep Nederland	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 61 domain names hosted across 18 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
145.136.253.22	waarneming.nl	29
145.136.250.136	walvisstrandingen.nl	4
145.136.249.3	species-identification.eu	3
145.136.250.104	waarneming-dbtest.nl	3
145.136.251.57	lianas-of-guyana.org	3
145.136.251.122	waarneming-acc.nl	3
145.136.250.152	observation-test.org	3
145.136.251.27	species2000.org	2
145.136.250.169	grasshoppersofeurope.com	2
145.136.250.151	xeno-canto.org	2
145.136.242.150	natuurinformatie.nl	1
145.136.0.1	6bed4.net	1
145.136.251.3	dierenzoeker.nl	1
145.136.248.147	dutchcaribbeanspecies.org	1
145.136.249.236	boldsystems.eu	1
145.136.251.83	treebase.org	1
145.136.253.21	observation.nrw	1
145.136.249.85	nederlandsesoorten.nl	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

1,839 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
145.137.121.48	AS1103 SURF B.V.	`5.28ms` from Amsterdam, NL
145.136.156.86	AS1103 SURF B.V.	`4.08ms` from Amsterdam, NL
145.136.62.53	AS1103 SURF B.V.	`0.53ms` from Amsterdam, NL
145.136.145.11	AS1103 SURF B.V.	`3.49ms` from Amsterdam, NL
145.136.134.184	AS1103 SURF B.V.	`3.46ms` from Amsterdam, NL
145.137.127.29	AS1103 SURF B.V.	`5.05ms` from Amsterdam, NL
145.137.106.250	AS1103 SURF B.V.	`9.04ms` from Amsterdam, NL
145.136.150.198	AS1103 SURF B.V.	`4.50ms` from Amsterdam, NL
145.136.148.184	AS1103 SURF B.V.	`3.67ms` from Amsterdam, NL
145.137.122.183	AS1103 SURF B.V.	`8.13ms` from Duesseldorf, DE
145.137.95.170	AS1103 SURF B.V.	`9.17ms` from Roosendaal, NL
145.137.59.31	AS1103 SURF B.V.	`9.93ms` from Roubaix, FR
145.137.15.112	AS1103 SURF B.V.	`20.98ms` from Sheffield, GB
145.136.60.29	AS1103 SURF B.V.	`0.58ms` from Amsterdam, NL
145.137.108.1	AS1103 SURF B.V.	`2.77ms` from Amsterdam, NL
145.136.147.91	AS1103 SURF B.V.	`2.97ms` from Amsterdam, NL
145.136.58.17	AS1103 SURF B.V.	`0.52ms` from Amsterdam, NL
145.136.248.77	AS1103 SURF B.V.	`0.85ms` from Amsterdam, NL
145.136.154.227	AS1103 SURF B.V.	`4.44ms` from Amsterdam, NL
145.136.250.151	AS1103 SURF B.V.	`0.77ms` from Amsterdam, NL
145.136.251.122	AS1103 SURF B.V.	`0.74ms` from Amsterdam, NL
145.136.157.217	AS1103 SURF B.V.	`3.85ms` from Amsterdam, NL
145.137.104.1	AS1103 SURF B.V.	`2.76ms` from Amsterdam, NL
145.137.64.1	AS1103 SURF B.V.	`2.81ms` from Amsterdam, NL
145.137.23.235	AS1103 SURF B.V.	`206.34ms` from Boydton, US

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
85.117.109.255	AS29555 Mobile Telecom-Service LLP	`1.52ms` from Almaty, KZ
104.60.25.207	AS7018 AT&T Enterprises, LLC	`10.35ms` from Atlanta, US
1.27.244.79	AS4837 CHINA UNICOM China169 Backbone	`18.16ms` from Changchun, CN
24.15.89.223	AS7922 Comcast Cable Communications, LLC	`5.12ms` from Chicago, US
187.201.144.239	AS8151 UNINET	`1.04ms` from Guadalajara, MX
36.77.207.191	AS7713 PT Telekomunikasi Indonesia	`1.48ms` from Jakarta, ID
42.53.245.31	AS4837 CHINA UNICOM China169 Backbone	`14.57ms` from Liaoyang, CN
195.195.88.63	AS786 Jisc Services Limited	`2.33ms` from London, GB
50.116.63.127	AS63949 Akamai Connected Cloud	`0.12ms` from Morris Plains, US
47.105.34.95	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.10ms` from Qingdao, CN
50.34.78.239	AS20055 Wholesail networks LLC	`1.61ms` from Seattle, US
121.175.106.159	AS4766 Korea Telecom	`6.29ms` from Seoul, KR
54.251.39.47	AS16509 Amazon.com, Inc.	`0.16ms` from Singapore, SG
114.41.115.191	AS3462 Data Communication Business Group	`2.36ms` from Taichung, TW
211.75.122.223	AS3462 Data Communication Business Group	`1.79ms` from Taipei, TW
107.136.172.191	AS7018 AT&T Enterprises, LLC	`17.83ms` from Chicago, US
14.254.8.15	AS45899 VNPT Corp	`2.34ms` from Da Nang, VN
85.105.213.63	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.40ms` from Istanbul, TR
97.95.52.47	AS20115 Charter Communications LLC	`18.81ms` from Minneapolis, US
80.13.156.47	AS3215 Orange S.A.	`2.49ms` from Paris, FR
72.211.162.111	AS22773 Cox Communications Inc.	`4.25ms` from Phoenix, US
201.146.41.63	AS8151 UNINET	`10.83ms` from Phoenix, US
187.232.99.143	AS8151 UNINET	`11.49ms` from Santiago de Queretaro, MX
36.39.91.255	AS17839 LG HelloVision Corp.	`1.34ms` from Seoul, KR
83.249.7.47	AS1257 Tele2 Sverige AB	`7.99ms` from Stockholm, SE

Traceroute

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

traceroute -a -n -q1 145.136.63.110

traceroute to 145.136.63.110 (145.136.63.110): 64 hops max, 52 byte packets

1 [AS56630] 77.72.16.177 0.679 ms

2 [] 193.239.117.149 1.162 ms

3 *

4 [AS1103] 145.145.34.53 1.541 ms

5 [AS1103] 145.145.34.54 24.4 ms

6 [AS1103] 145.100.2.14 4.686 ms

7 *

8 *

9 *

10 [AS1103] 145.136.63.110 8.866 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On December 6th 2025

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