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
145.10.0.0/16	AS48037	SSC-ICT Haaglanden	65,536
145.4.0.0/16	AS702	PGGM N.V.	65,536
145.218.0.0/16	AS49362	DSV A/S	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
145.18.0.0/16	AS1124	Universiteit van Amsterdam	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	biodiversityanalysis.nl	4
145.136.249.3	species-identification.eu	3
145.136.250.104	waarneming-dbtest.nl	3
145.136.250.152	observation-test.org	3
145.136.251.57	nationaalherbarium.nl	3
145.136.251.122	waarneming-acc.nl	3
145.136.251.27	species2000.org	2
145.136.250.151	xeno-canto.org	2
145.136.250.169	ortheur.org	2
145.136.242.150	natuurinformatie.nl	1
145.136.248.147	dutchcaribbeanspecies.org	1
145.136.251.83	treebase.org	1
145.136.0.1	6bed4.net	1
145.136.249.236	boldsystems.eu	1
145.136.251.3	dierenzoeker.nl	1
145.136.249.85	nederlandsesoorten.nl	1
145.136.253.21	observation.nrw	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

1,854 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
145.137.103.80	AS1103 SURF B.V.	`5.15ms` from Amsterdam, NL
145.137.120.1	AS1103 SURF B.V.	`2.69ms` from Amsterdam, NL
145.136.253.22	AS1103 SURF B.V.	`0.61ms` from Amsterdam, NL
145.136.155.54	AS1103 SURF B.V.	`4.09ms` from Amsterdam, NL
145.137.108.1	AS1103 SURF B.V.	`2.73ms` from Amsterdam, NL
145.137.126.195	AS1103 SURF B.V.	`4.33ms` from Amsterdam, NL
145.136.56.191	AS1103 SURF B.V.	`0.48ms` from Amsterdam, NL
145.137.14.200	AS1103 SURF B.V.	`9.15ms` from The Hague, NL
145.137.125.8	AS1103 SURF B.V.	`5.18ms` from Amsterdam, NL
145.136.249.187	AS1103 SURF B.V.	`0.79ms` from Amsterdam, NL
145.136.146.199	AS1103 SURF B.V.	`3.31ms` from Amsterdam, NL
145.136.63.56	AS1103 SURF B.V.	`0.49ms` from Amsterdam, NL
145.136.153.100	AS1103 SURF B.V.	`3.38ms` from Amsterdam, NL
145.137.65.112	AS1103 SURF B.V.	`4.11ms` from Amsterdam, NL
145.136.156.0	AS1103 SURF B.V.	`4.21ms` from Amsterdam, NL
145.137.59.237	AS1103 SURF B.V.	`4.90ms` from Amsterdam, NL
145.136.144.3	AS1103 SURF B.V.	`1.91ms` from Amsterdam, NL
145.137.64.1	AS1103 SURF B.V.	`2.78ms` from Amsterdam, NL
145.137.32.1	AS1103 SURF B.V.	`2.67ms` from Amsterdam, NL
145.136.152.1	AS1103 SURF B.V.	`1.94ms` from Amsterdam, NL
145.136.138.118	AS1103 SURF B.V.	`2.99ms` from Amsterdam, NL
145.136.252.4	AS1103 SURF B.V.	`0.69ms` from Amsterdam, NL
145.137.124.160	AS1103 SURF B.V.	`8.86ms` from Amsterdam, NL
145.137.112.1	AS1103 SURF B.V.	`2.62ms` from Amsterdam, NL
145.136.141.10	AS1103 SURF B.V.	`4.24ms` 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
2.84.155.95	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`13.35ms` from Athens, GR
76.237.151.127	AS7018 AT&T Enterprises, LLC	`9.81ms` from Atlanta, US
108.237.186.255	AS7018 AT&T Enterprises, LLC	`3.71ms` from Atlanta, US
76.127.186.127	AS7922 Comcast Cable Communications, LLC	`9.50ms` from Boston, US
23.43.215.175	AS16625 Akamai Technologies, Inc.	`0.19ms` from Chicago, US
184.154.34.239	AS32475 Internap Holding LLC	`0.86ms` from Chicago, US
47.195.236.143	AS5650 Frontier Communications of America, Inc.	`7.47ms` from Miami, US
122.226.69.79	AS4134 CHINANET-BACKBONE	`6.35ms` from Nanchang, CN
223.83.197.143	AS56045 China Mobile communications corporation	`6.15ms` from Nanchang, CN
180.138.63.255	AS4134 CHINANET-BACKBONE	`7.62ms` from Nanning, CN
54.210.66.111	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
213.108.173.47	AS49718 Nizhnevolzhskie Telecommunication Networks Real LLC	`16.43ms` from Samara, RU
52.104.32.63	AS8075 Microsoft Corporation	`0.27ms` from San Antonio, US
108.65.78.95	AS7018 AT&T Enterprises, LLC	`18.36ms` from Santa Clara, US
126.72.161.207	AS17676 SoftBank Corp.	`7.97ms` from Tokyo, JP
125.42.252.207	AS4837 CHINA UNICOM China169 Backbone	`6.94ms` from Zhengzhou, CN
139.199.134.239	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.54ms` from Beijing, CN
44.244.120.223	AS16509 Amazon.com, Inc.	`0.52ms` from Boardman, US
18.18.155.15	AS3 Massachusetts Institute of Technology	`1.28ms` from Boston, US
96.29.62.79	AS10796 Charter Communications Inc	`18.32ms` from Columbus, US
34.10.150.127	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
49.69.53.95	AS4134 CHINANET-BACKBONE	`7.25ms` from Huai'an, CN
110.226.55.255	AS24560 Bharti Airtel Ltd., Telemedia Services	`4.21ms` from Kolkata, IN
46.174.250.31	AS56326 9-ka.ru Ltd.	`1.49ms` from Krasnoyarsk, RU
95.73.154.159	AS12389 PJSC Rostelecom	`3.47ms` from Moscow, RU

Traceroute

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

traceroute -a -n -q1 -m9 145.137.130.151

traceroute to 145.137.130.151 (145.137.130.151): 9 hops max, 52 byte packets

1 [AS15169] 66.249.95.10 81.132 ms

2 *

3 [AS1103] 145.145.181.11 86.311 ms

4 [AS1103] 145.145.176.51 85.704 ms

5 [AS1103] 145.145.8.81 85.067 ms

6 [AS1103] 145.145.8.82 86.49 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Montreal, CA

On November 14th 2025

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