145.160.0.0/12

AS1103  ·  SURF B.V.

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

Sign up for free ›

Summary

Country Netherlands
Domain surfnet.nl
ASN AS1103
Registry ripe
Hosted IPs 1,048,576
ID SURFNET-BLOCKB156

WHOIS Details

inetnum:        145.160.0.0 - 145.160.255.255
netname:        SURFNET-BLOCKB156
org:            ORG-Sb3-RIPE
descr:          SURFnet bv
descr:          P.O. Box 19035
descr:          3501 DA Utrecht
country:        NL
admin-c:        SNS1-RIPE
tech-c:         SNS1-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
remarks:        -------------------------------------------------
remarks:        Use cert@surfnet.nl to report security incidents.
remarks:        See http://cert.surfnet.nl/ for more information.
remarks:        -------------------------------------------------
mnt-by:         SN-LIR-MNT
mnt-lower:      SN-LIR-MNT
mnt-routes:     SN-LIR-MNT
mnt-irt:        irt-SURFcert
notify:         lir@surfnet.nl
created:        2003-09-09T09:34:40Z
last-modified:  2017-06-12T12:10:26Z
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

role:           SURF Network Maintainer
address:        Kantoren Hoog Overborch (Hoog Catharijne)
address:        Moreelsepark 48, 3511 EP Utrecht
address:        Postbus 19035, 3501 DA Utrecht
phone:          +31 88 7873000
admin-c:        WB311-RIPE
tech-c:         NO17-RIPE
tech-c:         WB311-RIPE
tech-c:         MK512-RIPE
tech-c:         JO5863-RIPE
tech-c:         MM57501-RIPE
nic-hdl:        SNS1-RIPE
abuse-mailbox:  cert@surfcert.nl
mnt-by:         AS1103-MNT
created:        2002-07-09T10:06:06Z
last-modified:  2024-05-23T04:00:29Z
source:         RIPE
e-mail:         noc@surf.nl

Nearby Ranges

BGP prefixes that overlap with 145.0.0.0/8

Range ASN Company Num of IPs
145.144.0.0/12 AS1103 SURFnet bv 1,048,576
145.192.0.0/12 AS1101 SURFnet bv 1,048,576
145.208.0.0/13 AS1101 SURFnet bv 524,288
145.140.0.0/14 AS1103 SURF B.V. 262,144
145.120.0.0/14 AS1103 SURFnet bv 262,144
145.216.0.0/15 AS1101 SURFnet bv 131,072
145.48.0.0/15 AS1103 Avans Hogeschool 131,072
145.136.0.0/15 AS1103 Hogeschool Rotterdam & Omstreken 131,072
145.92.0.0/15 AS1103 Hogeschool van Amsterdam 131,072
145.124.0.0/15 AS1103 Stichting ASTRON 131,072
145.74.0.0/15 AS1103 Hogeschool van Arnhem en Nijmegen 131,072
145.38.0.0/15 AS1103 SURFsara reken cluster 131,072
145.88.0.0/15 AS1103 Leiden University Medical Centre 131,072
145.28.0.0/15 AS1103 Hogeschool van Amsterdam 131,072
145.132.0.0/15 AS1136 Microsoft Limited 131,072
145.2.0.0/15 AS1103 Hogeschool Saxion 131,072
145.100.0.0/15 AS1103 SURFsara 131,072
145.107.0.0/16 AS1103 SURF B.V. 65,536
145.81.0.0/16 AS1103 SURFnet bv 65,536
145.239.0.0/16 AS16276 OVH SAS 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
145.244.0.0/16 AS1853 Steiermaerkische Krankenanstalten GesmbH 65,536
145.129.0.0/16 AS1136 Microsoft Limited 65,536
145.36.0.0/16 AS10753 RELX PLC 65,536
145.237.0.0/16 AS34339 Centrum Informatyki Resortu Finansow 65,536
145.44.0.0/16 AS1103 Christelijke Hogeschool Windesheim 65,536
145.243.0.0/16 AS8792 Axel Springer SE 65,536
145.51.0.0/16 AS1103 Hogeschool Rotterdam & Omstreken 65,536
145.53.0.0/16 AS1136 KPN B.V. 65,536
145.126.0.0/16 AS1103 SURFnet bv 65,536
145.50.0.0/16 AS42894 Ministerie van Verkeer en Waterstaat/Rijkswaterstaat 65,536
145.26.0.0/16 AS3917 Shell Information Technology International 65,536
145.13.0.0/16 AS21286 F&IT RIM - OsirisNG, Zoetermeer 65,536
145.18.0.0/16 AS1124 Universiteit van Amsterdam 65,536
145.245.0.0/16 AS2047 Hoffmann - La Roche Ltd. 65,536
145.118.0.0/16 AS1103 SURFnet bv 65,536
145.230.0.0/16 AS12663 Vodafone Group Services GmbH 65,536
145.90.0.0/16 AS1103 SURFnet bv 65,536
145.110.0.0/16 AS1104 NIKHEF 65,536
145.99.0.0/16 AS1101 COOL-DOWN-i 65,536
145.117.0.0/16 AS1103 Academic Medical Centre 65,536
145.108.0.0/16 AS1103 Vrije Universiteit Amsterdam 65,536
145.19.0.0/16 AS1103 Hogeschool Zeeland Network 65,536
145.95.0.0/16 AS1103 SURFnet bv 65,536
145.220.0.0/16 AS1101 SURFnet bv 65,536
145.33.0.0/16 AS1103 Hanzehogeschool Groningen 65,536
145.52.0.0/16 AS1103 Haagse Hogeschool 65,536
145.23.0.0/16 AS1103 Koninklijk Nederlands Meteorologisch Instituut 65,536
145.102.0.0/16 AS1103 SURFnet bv 65,536

Hosted domains

There are no domains currently hosted on this ASN.

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

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.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs