145.91.0.0/16

AS1103 · SURF B.V.

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Netherlands
Domain	surfcert.nl
ASN	AS1103
Registry	RIPE
ID	HOBOL

WHOIS Details

inetnum:        145.91.0.0 - 145.91.255.255
netname:        HOBOL
descr:          Hogeschool Zuyd
country:        NL
admin-c:        WB154-RIPE
tech-c:         WB154-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-by:         SURF-AUTO-MNT
mnt-irt:        irt-SURFcert
notify:         lir@surfnet.nl
created:        2002-01-22T15:45:47Z
last-modified:  2025-10-02T17:29:13Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

person:         Wim Boerhof
address:        Hogeschool Zuyd
address:        P.O. Box 550
address:        NL - 6400 AN Heerlen
address:        The Netherlands
nic-hdl:        WB154-RIPE
notify:         lir@surfnet.nl
mnt-by:         SN-LIR-MNT
phone:          +31 45 4006070
fax-no:         +31 45 4006039
created:        2002-01-22T15:30:00Z
last-modified:  2019-03-21T09:01:53Z
source:         RIPE

route:          145.91.0.0/16
descr:          HOBOL
origin:         AS1103
notify:         lir@surfnet.nl
mnt-by:         AS1103-MNT
created:        2002-02-27T13:45:31Z
last-modified:  2019-03-21T09:01:46Z
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
145.32.0.0/16	AS34108	Gemeente Delft	65,536
145.31.0.0/16	AS42894	Ministerie van Verkeer en Waterstaat/Rijkswaterstaat	65,536
145.58.0.0/16	AS25182	Publieke Omroep Nederland	65,536
145.35.0.0/16	AS42517	Schiphol Telematics BV	65,536
145.238.0.0/16	AS2200	Observatoire de Paris	65,536
145.4.0.0/16	AS702	PGGM N.V.	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
145.228.0.0/16	AS33873	Arvato Systems GmbH	65,536
145.233.0.0/16	AS3549	LUMEN TECHNOLOGIES UK LIMITED	65,536
145.222.0.0/16	AS21286	KPN B.V.	65,536
145.237.0.0/16	AS34339	Centrum Informatyki Resortu Finansow	65,536
145.245.0.0/16	AS2047	Hoffmann - La Roche Ltd.	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
145.82.0.0/16	AS25019	Saudi Telecom Company JSC	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
145.244.0.0/16	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
145.220.0.0/16	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
145.234.0.0/16	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
145.95.0.0/16	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

Hosted domains

There are 14 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
145.91.10.100	zuydhogeschool.nl	6
145.91.10.42	zuydnet.nl	3
145.91.10.10	thuisbijzuyd.nl	3
145.91.10.5	zuydprofessional.com	2

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

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

IP Address	ASN	Details
145.91.241.71	AS1103 SURF B.V.	`4.52ms` from Amsterdam, NL
145.91.240.160	AS1103 SURF B.V.	`4.49ms` from Amsterdam, NL
145.91.10.23	AS1103 SURF B.V.	`4.49ms` from Amsterdam, NL
145.91.242.242	AS1103 SURF B.V.	`4.50ms` from Amsterdam, NL
145.91.11.2	AS1103 SURF B.V.	`4.55ms` from Amsterdam, NL
145.91.244.197	AS1103 SURF B.V.	`4.50ms` 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
94.71.229.128	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.22ms` from Athens, GR
120.155.141.16	AS1221 Telstra Limited	`2.84ms` from Brisbane, AU
20.41.190.176	AS8075 Microsoft Corporation	`0.58ms` from Chicago, US
34.141.55.112	AS396982 Google LLC	`0.10ms` from Frankfurt am Main, DE
47.98.189.48	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.90ms` from Hangzhou, CN
80.43.57.192	AS13285 TalkTalk Communications Limited	`4.07ms` from London, GB
172.93.16.16	AS1403 EBOX	`0.57ms` from Montreal, CA
23.40.10.144	AS16625 Akamai Technologies, Inc.	`0.40ms` from Paris, FR
118.176.173.0	AS10036 DLIVE	`1.73ms` from Seoul, KR
121.209.156.16	AS1221 Telstra Limited	`3.84ms` from Sydney, AU
91.212.155.144	AS49141 Intrum Sp. z o.o.	`8.20ms` from Warsaw, PL
36.65.197.64	AS7713 PT Telekomunikasi Indonesia	`10.92ms` from Yogyakarta, ID
221.15.87.64	AS4837 CHINA UNICOM China169 Backbone	`4.62ms` from Zhengzhou, CN
84.86.226.16	AS1136 KPN B.V.	`2.19ms` from Amsterdam, NL
73.132.166.96	AS7922 Comcast Cable Communications, LLC	`5.25ms` from Ashburn, US
86.127.220.144	AS8708 DIGI ROMANIA S.A.	`0.86ms` from Bucharest, RO
82.58.67.160	AS3269 Telecom Italia S.p.A.	`1.93ms` from Milan, IT
176.214.21.16	AS56420 JSC "ER-Telecom Holding"	`4.04ms` from Moscow, RU
79.10.174.144	AS3269 Telecom Italia S.p.A.	`7.38ms` from Naples, IT
125.151.47.144	AS4766 Korea Telecom	`2.12ms` from Seoul, KR
211.217.141.128	AS4766 Korea Telecom	`1.30ms` from Seoul, KR
34.222.217.224	AS16509 Amazon.com, Inc.	`0.29ms` from Boardman, US
42.123.102.0	AS58519 Cloud Computing Corporation	`6.76ms` from Chongqing, CN
79.254.171.128	AS3320 Deutsche Telekom AG	`5.57ms` from Frankfurt am Main, DE
192.136.241.48	AS11427 Charter Communications Inc	`14.99ms` from Houston, US

Traceroute

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

traceroute -a -n -q1 -f2 -m11 145.91.29.208

traceroute to 145.91.29.208 (145.91.29.208): 11 hops max, 52 byte packets

2 [AS3257] 207.162.203.121 2.79 ms

3 [AS3257] 213.200.127.253 11.349 ms

4 *

5 [AS3257] 195.72.72.106 102.621 ms

6 [AS3257] 195.72.72.107 185.875 ms

7 [AS1103] 145.145.181.181 142.284 ms

8 [AS1103] 145.145.176.46 150.161 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Detroit, US

On December 14th 2025

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales