IP range details

145.97.128.0/18

AS1103 · SURF B.V.

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Summary

Country	Netherlands
Domain	rug.nl
ASN	AS1103
Registry	ripe
Hosted IPs	16,384
ID	RUGNET

WHOIS Details

inetnum:        145.97.128.0 - 145.97.191.255
netname:        RUGNET
descr:          Rijks Universiteit Groningen
descr:          Groningen
country:        NL
admin-c:        RNS24-RIPE
tech-c:         RNS24-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-irt:        irt-SURFcert
created:        2012-01-06T14:25:49Z
last-modified:  2019-12-04T13:47:24Z
source:         RIPE
abuse-email:    cert@surfcert.nl
abuse-c:        SNS1-RIPE
abuse-org:      ORG-Sb3-RIPE

role:           RUGnet Network Services
address:        Centrum voor Informatie Technologie
address:        Rijksuniversiteit Groningen
address:        Nettelbosje 1
address:        NL-9747 AJ Groningen
address:        P.O.Box 11044
address:        NL-9700 CA Groningen
address:        The Netherlands
phone:          +31 30 363 92 00
fax-no:         +31 30 363 34 06
admin-c:        HV1625-RIPE
tech-c:         HV1625-RIPE
tech-c:         AM36535-RIPE
abuse-mailbox:  abuse@rug.nl
e-mail:         hostmaster@nic.rug.nl
nic-hdl:        RNS24-RIPE
mnt-by:         SN-LIR-MNT
created:        2015-02-02T12:19:47Z
last-modified:  2015-02-02T12:19:47Z
source:         RIPE

route:          145.97.128.0/18
descr:          RUG
origin:         AS1103
notify:         netmaster@surf.nl
mnt-by:         AS1103-MNT
created:        2012-01-23T11:27:47Z
last-modified:  2021-01-22T15:04:13Z
source:         RIPE

Hosted domains

There are no domains currently hosted on this ASN.

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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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