IP range details

51.9.0.0/16

AS6871  ·  Plusnet

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Summary

Country United Kingdom
Domain plus.net
ASN AS6871
Registry ripe
Hosted IPs 65,536
ID FORCE9

WHOIS Details

inetnum:        51.9.0.0 - 51.9.255.255
remarks:        Please send abuse notification to [email protected]
netname:        FORCE9
descr:          PlusNet plc.
org:            ORG-BPIS1-RIPE
country:        GB
admin-c:        PNET2-RIPE
tech-c:         PNET2-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         MAINT-AS6871
mnt-by:         BTNET-INFRA-MNT
created:        2015-06-17T07:29:25Z
last-modified:  2025-05-12T17:35:27Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        AR13878-RIPE
abuse-org:      ORG-BPIS1-RIPE

organisation:   ORG-BPIS1-RIPE
org-name:       British Telecommunications PLC
country:        GB
org-type:       LIR
address:        PP1, Floor1, Orion, Adastral Park, Martlesham Heath
address:        IP5 3RE
address:        Ipswich
address:        UNITED KINGDOM
phone:          +44 (0)20 7356 5000
abuse-c:        AR13878-RIPE
mnt-ref:        BTNET-MNT
mnt-ref:        BTNET-INFRA-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         BTNET-INFRA-MNT
admin-c:        FLS15-RIPE
admin-c:        MS35380-RIPE
admin-c:        GF1231-RIPE
created:        2004-04-17T12:11:50Z
last-modified:  2025-03-24T17:20:04Z
source:         RIPE
e-mail:         [email protected]
abuse-email:    [email protected]
abuse-c:        AR13878-RIPE
abuse-org:      undefined

role:           Plusnet Hostmaster
address:        PlusNet Plc
address:        The Balance
address:        2 Pinfold Street
address:        Sheffield
address:        S1 2GU
address:        UK
phone:          +44 114 2200084
e-mail:         [email protected]
abuse-mailbox:  [email protected]
remarks:        ------------------------------------------------
remarks:        Please do NOT e-mail abuse to the contacts given
remarks:        here, e-mail them to [email protected] instead.
remarks:        All email sent to other listed addresses will
remarks:        be deleted!
remarks:        ------------------------------------------------
remarks:        Network Status and Information Page:
remarks:        http://status.plus.net
remarks:        http://support.plus.net
remarks:        ------------------------------------------------
remarks:        Support 24*7 Phone: (UK) 0845 140 0200
remarks:        ------------------------------------------------
admin-c:        JW7886-RIPE
tech-c:         DS3916-RIPE
nic-hdl:        PNET2-RIPE
notify:         [email protected]
mnt-by:         MAINT-AS6871
created:        2002-05-16T12:18:00Z
last-modified:  2018-01-17T15:40:44Z
source:         RIPE

route:          51.9.0.0/16
descr:          PlusNet plc.
origin:         AS6871
mnt-by:         MAINT-AS6871
created:        2015-12-10T11:53:03Z
last-modified:  2015-12-10T11:53:03Z
source:         RIPE

Hosted domains

There are 41 domain names hosted across 35 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
51.9.55.149 nussole.eu 4
51.9.172.150 thehunt.uk 2
51.9.1.196 ebirthday.uk 2
51.9.192.93 hyther.art 2
51.9.185.225 bkworld.uk 1
51.9.200.176 pure-computers.co.uk 1
51.9.122.225 cbict.com 1
51.9.100.66 grahamwatt.net 1
51.9.27.174 bricksey.net 1
51.9.47.79 rgriff.in 1
51.9.165.219 asmsolutions.co.uk 1
51.9.79.154 logiseccloud.com 1
51.9.33.233 pigeonland.uk 1
51.9.25.244 techsabre.co.uk 1
51.9.185.50 katiemccoy.co.uk 1
51.9.89.168 benedictwilson.co.uk 1
51.9.144.60 cfcontrol.co.uk 1
51.9.211.83 comtre.co.uk 1
51.9.165.228 policepigeon.dev 1
51.9.21.202 3wired.uk 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.
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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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