1. All IP Ranges
  2. 145.0.0.0/8
  3. 145.33.0.0/16
  4. AS1103  | 145.33.0.0/16

145.33.0.0/16

AS1103  ·  SURF B.V.

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Summary

Country Netherlands
Domain hanze.nl
ASN AS1103
Registry RIPE
ID HANZE-NET

WHOIS Details

inetnum:        145.33.0.0 - 145.33.255.255
netname:        hanze-net
org:            ORG-Sb3-RIPE
descr:          Hanzehogeschool Groningen
descr:          Zernikeplein 1
descr:          9747 AS Groningen
country:        NL
admin-c:        HRC21-RIPE
tech-c:         HRC21-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-by:         SURF-AUTO-MNT
mnt-by:         SURF-AUTO-MNT
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-irt:        irt-SURFcert
notify:         lir@surfnet.nl
created:        1970-01-01T00:00:00Z
last-modified:  2025-10-02T17:29:10Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

organisation:   ORG-Sb3-RIPE
org-name:       SURF B.V.
country:        NL
org-type:       LIR
address:        P.O. Box 19035
address:        3501 DA
address:        Utrecht
address:        NETHERLANDS
phone:          +31887873000
e-mail:         lir@surf.nl
admin-c:        HT3384-RIPE
admin-c:        MK512-RIPE
admin-c:        SNS1-RIPE
admin-c:        WB311-RIPE
admin-c:        NO17-RIPE
admin-c:        RS957-RIPE
admin-c:        JO5863-RIPE
admin-c:        MM57501-RIPE
abuse-c:        SNS1-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SN-LIR-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SN-LIR-MNT
created:        2004-04-17T11:43:29Z
last-modified:  2023-02-21T13:35:38Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      undefined

role:           Hanze Ripe Contact
address:        Hanzehogeschool Groningen
address:        P.O. Box 3037
address:        NL - 9701 DA Groningen
address:        the Netherlands
e-mail:         dnsbeheer@org.hanze.nl
nic-hdl:        HRC21-RIPE
mnt-by:         SN-LIR-MNT
created:        2019-07-30T11:27:55Z
last-modified:  2019-07-30T11:27:55Z
source:         RIPE

route:          145.33.0.0/16
descr:          RHG
origin:         AS1103
notify:         lir@surfnet.nl
mnt-by:         AS1103-MNT
created:        2002-02-27T13:37:05Z
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
145.32.0.0/16 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
145.91.0.0/16 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

Hosted domains

There are 4 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
145.33.222.3 bioinf.nl 2
145.33.222.129 ilst.nl 1
145.33.225.194 talkotalk.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
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Pingable IPs

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

IP Address ASN Details
145.33.251.196 AS1103 SURF B.V. 3.60ms from Amsterdam, NL
145.33.250.25 AS1103 SURF B.V. 3.48ms from Amsterdam, NL
145.33.222.3 AS1103 SURF B.V. 8.65ms from Oudeschip, 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
112.141.79.32 AS9443 Vocus Retail 2.17ms from Brisbane, AU
109.138.150.112 AS5432 Proximus NV 3.06ms from Brussels, BE
197.95.6.16 AS20011 Dimension Data 2.71ms from Cape Town, ZA
197.145.213.224 AS36884 Wana Corporate 5.25ms from Casablanca, MA
117.196.116.0 AS9829 National Internet Backbone 9.13ms from Chennai, IN
129.79.159.112 AS87 Indiana University 5.24ms from Chicago, US
166.195.6.112 AS20057 AT&T Enterprises, LLC 6.07ms from Dallas, US
91.47.8.128 AS3320 Deutsche Telekom AG 3.88ms from Frankfurt am Main, DE
105.168.44.32 AS37119 UNITEL SA 0.78ms from Luanda, AO
62.227.253.192 AS3320 Deutsche Telekom AG 5.37ms from Nuernberg, DE
123.48.22.96 AS18126 Chubu Telecommunications Company, Inc. 9.46ms from Osaka, JP
114.179.99.112 AS4713 NTT DOCOMO BUSINESS,Inc. 6.47ms from Osaka, JP
189.190.169.96 AS8151 UNINET 6.27ms from Santiago de Queretaro, MX
177.33.35.144 AS28573 Claro NXT Telecomunicacoes Ltda 6.64ms from Sao Paulo, BR
173.201.70.0 AS44273 Host Europe GmbH 0.19ms from Seattle, US
34.47.91.192 AS396982 Google LLC 0.10ms from Seoul, KR
129.226.144.160 AS132203 Tencent Building, Kejizhongyi Avenue 0.31ms from Singapore, SG
210.66.188.160 AS4780 Digital United Inc. 3.75ms from Taipei, TW
147.30.8.144 AS9198 JSC Kazakhtelecom 2.27ms from Almaty, KZ
142.204.253.240 AS393238 ImOn Communications, LLC 7.00ms from Chicago, US
70.134.203.112 AS7018 AT&T Enterprises, LLC 2.37ms from Chicago, US
78.72.107.192 AS3301 Telia Company AB 4.75ms from Goeteborg, SE
129.173.118.224 AS8111 Dalhousie University 0.31ms from Halifax, CA
113.162.182.192 AS45899 VNPT Corp 1.45ms from Ho Chi Minh City, VN
185.127.160.32 AS203119 Servicios Tecnologicos TIM SL 1.17ms from Lisbon, PT

Traceroute

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

$
traceroute -a -n -q1 -f5 -m11 145.33.95.122
traceroute to 145.33.95.122 (145.33.95.122): 11 hops max, 52 byte packets
7 [AS1103] 145.145.182.27 47.389 ms
8 [AS1103] 145.145.2.201 47.287 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Malaga, ES
On

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.

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