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:    [email protected]
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:         [email protected]
nic-hdl:        JS15878-RIPE
notify:         [email protected]
notify:         [email protected]
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
145.51.0.0/16	AS1103	Hogeschool Rotterdam & Omstreken	65,536
145.220.0.0/16	AS1101	SURF B.V.	65,536
145.251.0.0/16	AS5411	Systembolaget AB	65,536
145.58.0.0/16	AS25182	Publieke Omroep Nederland	65,536
145.108.0.0/16	AS1103	Vrije Universiteit Amsterdam	65,536
145.234.0.0/16	AS206567	Tamedia AG	65,536
145.238.0.0/16	AS2200	Observatoire de Paris	65,536
145.233.0.0/16	AS3549	LUMEN TECHNOLOGIES UK LIMITED	65,536
145.10.0.0/16	AS48037	SSC-ICT Haaglanden	65,536
145.221.0.0/16	AS15625	ING Bank NV	65,536
145.126.0.0/16	AS1103	SURFnet bv	65,536
145.81.0.0/16	AS1103	SURFnet bv	65,536
145.232.0.0/16	AS15675	Etat de Vaud, CCT	65,536
145.237.0.0/16	AS34339	Centrum Informatyki Resortu Finansow	65,536
145.86.0.0/16	AS15830	Medisch Spectrum Twente	65,536
145.13.0.0/16	AS21286	F&IT RIM - OsirisNG, Zoetermeer	65,536
145.222.0.0/16	AS21286	KPN B.V.	65,536
145.243.0.0/16	AS200757	Axel Springer SE	65,536
145.4.0.0/16	AS1136	PGGM N.V.	65,536
145.68.0.0/16	AS1136	ISC-NL	65,536
145.26.0.0/16	AS3917	Shell Information Technology International	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
145.4.0.0/16	AS702	PGGM N.V.	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
145.18.0.0/16	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
145.218.0.0/16	AS49362	DSV A/S	65,536
145.245.0.0/16	AS2047	Hoffmann - La Roche Ltd.	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	icedig.eu	4
145.136.249.3	species-identification.org	3
145.136.251.122	waarnemingen-acc.be	3
145.136.250.152	observation-test.org	3
145.136.251.57	nationaalherbarium.nl	3
145.136.250.104	observation-dbtest.org	3
145.136.250.169	grasshoppersofeurope.com	2
145.136.250.151	xeno-canto.org	2
145.136.251.27	sp2000.org	2
145.136.251.83	treebase.org	1
145.136.242.150	natuurinformatie.nl	1
145.136.248.147	dutchcaribbeanspecies.org	1
145.136.249.236	boldsystems.eu	1
145.136.251.3	dierenzoeker.nl	1
145.136.0.1	6bed4.net	1
145.136.249.85	nederlandsesoorten.nl	1
145.136.253.21	observation.nrw	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

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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
145.136.146.40	AS1103 SURF B.V.	`3.46ms` from Amsterdam, NL
145.136.144.1	AS1103 SURF B.V.	`1.74ms` from Amsterdam, NL
145.136.155.119	AS1103 SURF B.V.	`3.84ms` from Amsterdam, NL
145.136.130.88	AS1103 SURF B.V.	`4.03ms` from Amsterdam, NL
145.136.151.152	AS1103 SURF B.V.	`4.13ms` from Amsterdam, NL
145.136.134.184	AS1103 SURF B.V.	`3.46ms` from Amsterdam, NL
145.136.142.45	AS1103 SURF B.V.	`3.11ms` from Amsterdam, NL
145.136.251.122	AS1103 SURF B.V.	`0.74ms` from Amsterdam, NL
145.136.57.114	AS1103 SURF B.V.	`0.52ms` from Amsterdam, NL
145.137.64.1	AS1103 SURF B.V.	`2.81ms` from Amsterdam, NL
145.136.62.53	AS1103 SURF B.V.	`0.53ms` from Amsterdam, NL
145.137.0.1	AS1103 SURF B.V.	`2.85ms` from Amsterdam, NL
145.137.125.225	AS1103 SURF B.V.	`5.99ms` from Amsterdam, NL
145.137.112.1	AS1103 SURF B.V.	`2.66ms` from Amsterdam, NL
145.137.95.170	AS1103 SURF B.V.	`9.17ms` from Roosendaal, NL
145.136.60.29	AS1103 SURF B.V.	`0.58ms` from Amsterdam, NL
145.136.145.11	AS1103 SURF B.V.	`3.49ms` from Amsterdam, NL
145.137.127.29	AS1103 SURF B.V.	`5.05ms` from Amsterdam, NL
145.137.116.1	AS1103 SURF B.V.	`2.68ms` from Amsterdam, NL
145.136.250.151	AS1103 SURF B.V.	`0.77ms` from Amsterdam, NL
145.136.156.86	AS1103 SURF B.V.	`4.08ms` from Amsterdam, NL
145.136.139.220	AS1103 SURF B.V.	`4.05ms` from Amsterdam, NL
145.136.135.210	AS1103 SURF B.V.	`4.17ms` from Amsterdam, NL
145.136.245.0	AS1103 SURF B.V.	`0.60ms` from Amsterdam, NL
145.136.138.118	AS1103 SURF B.V.	`3.32ms` 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
102.188.204.207	AS24835 Vodafone Data	`10.80ms` from Cairo, EG
115.209.243.159	AS4134 CHINANET-BACKBONE	`10.32ms` from Hangzhou, CN
46.235.180.255	AS42487 Vialis SEM	`1.54ms` from Luxembourg, LU
117.82.42.255	AS4134 CHINANET-BACKBONE	`5.46ms` from Nanjing, CN
180.138.63.255	AS4134 CHINANET-BACKBONE	`7.65ms` from Nanning, CN
4.233.79.255	AS8075 Microsoft Corporation	`0.37ms` from Paris, FR
31.191.70.239	AS1267 WIND TRE S.P.A.	`3.84ms` from Rome, IT
27.235.13.111	AS4766 Korea Telecom	`1.40ms` from Seoul, KR
46.10.124.191	AS8866 Vivacom Bulgaria EAD	`0.85ms` from Sofia, BG
34.146.61.15	AS396982 Google LLC	`0.15ms` from Tokyo, JP
40.120.180.191	AS8075 Microsoft Corporation	`0.14ms` from Tokyo, JP
178.230.240.63	AS31615 Odido Netherlands B.V.	`10.37ms` from Amsterdam, NL
166.198.215.207	AS7018 AT&T Enterprises, LLC	`3.38ms` from Atlanta, US
200.50.75.31	AS14813 Columbus Telecommunications (Barbados) Limited	`2.95ms` from Bridgetown, BB
171.208.14.223	AS4134 CHINANET-BACKBONE	`7.58ms` from Chengdu, CN
37.196.28.15	AS1257 Tele2 Sverige AB	`0.46ms` from Goeteborg, SE
14.117.1.239	AS136199 CHINANET Guangdong province Yuedong MAN network	`3.31ms` from Guangzhou, CN
76.31.114.15	AS7922 Comcast Cable Communications, LLC	`7.05ms` from Houston, US
172.86.46.207	AS63394 Eastern Iowa IP, LLC	`10.13ms` from Minneapolis, US
123.198.138.207	AS2527 Sony Network Communications Inc.	`0.89ms` from Osaka, JP
201.146.41.63	AS8151 UNINET	`10.83ms` from Phoenix, US
116.39.219.207	AS17858 LG POWERCOMM	`6.06ms` from Seoul, KR
23.84.188.111	AS20115 Charter Communications LLC	`4.92ms` from St. Louis, US
84.229.216.47	AS12400 Partner Communications Ltd.	`0.92ms` from Tel Aviv, IL
64.176.168.63	AS20473 The Constant Company, LLC	`0.16ms` from Tel Aviv, IL

Traceroute

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

traceroute -a -n -q1 -f2 -m16 145.136.13.20

traceroute to 145.136.13.20 (145.136.13.20): 16 hops max, 52 byte packets

2 [AS2914] 128.241.10.130 1.661 ms

3 *

4 [AS2914] 129.250.2.75 17.817 ms

5 *

6 *

7 *

8 [AS6830] 213.46.186.102 18.027 ms

9 *

10 [AS1103] 145.145.176.5 23.494 ms

11 *

12 [AS1103] 145.145.12.13 21.472 ms

13 [AS1103] 145.145.12.14 33.238 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in Warsaw, PL

On December 6th 2025

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