51.6.0.0/15

AS6871 · Plusnet

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Summary

Country	unknown
Domain	plus.net
ASN	AS6871
Registry	RIPE
ID	UK-FORCE9

WHOIS Details

inetnum:        51.6.0.0 - 51.7.255.255
netname:        UK-FORCE9
country:        GB
descr:          PlusNet plc.
org:            ORG-BPIS1-RIPE
country:        GB
admin-c:        PLUS1-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:  2025-05-12T17:34:43Z
source:         RIPE
remarks:        Please send abuse notification to abuse@plus.net
abuse-email:    abuse@bt.com
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:         ipaddman@bt.com
abuse-email:    abuse@bt.com
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:         hostmaster@plus.net
abuse-mailbox:  abuse@plus.net
remarks:        ------------------------------------------------
remarks:        Please do NOT e-mail abuse to the contacts given
remarks:        here, e-mail them to ABUSE@PLUS.NET 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:         ripe-admin@plus.net
mnt-by:         MAINT-AS6871
created:        2002-05-16T12:18:00Z
last-modified:  2018-01-17T15:40:44Z
source:         RIPE

person:         PlusNet Ripe Admin
address:        Plusnet plc.
address:        The Balance
address:        2 Pinfold Street
address:        Sheffield
address:        S1 2GU
address:        GB
phone:          +44 114 22 00084
e-mail:         ripe-admin@plus.net
nic-hdl:        PLUS1-RIPE
mnt-by:         MAINT-AS6871
notify:         ripe-admin@plus.net
created:        1970-01-01T00:00:00Z
last-modified:  2012-05-02T13:03:37Z
source:         RIPE

route:          51.6.0.0/15
origin:         AS6871
descr:          PlusNet plc.
mnt-by:         MAINT-AS6871
created:        2016-04-11T12:23:56Z
last-modified:  2016-04-11T12:23:56Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 51.0.0.0/8

Range	ASN	Company	Num of IPs
51.176.0.0/15	AS16509	A100 ROW Inc	131,072
51.94.0.0/15	AS16509	A100 ROW Inc	131,072
51.158.0.0/15	AS12876	Scaleway	131,072
51.214.0.0/15	AS16509	A100 Row Inc	131,072
51.244.0.0/15	AS16509	A100 ROW Inc	131,072
51.236.0.0/15	AS16509	A100 ROW Inc	131,072
51.48.0.0/15	AS16509	A100 ROW Inc	131,072
51.182.0.0/15	AS5607	SKY UK Limited	131,072
51.16.0.0/15	AS16509	A100 Row Inc	131,072
51.216.0.0/15	AS16509	A100 ROW Inc	131,072
51.192.0.0/15	AS16509	A100 ROW Inc	131,072
51.172.0.0/15	AS16509	A100 ROW Inc	131,072
51.254.0.0/15	AS16276	OVH SAS	131,072
51.212.0.0/15	AS16509	A100 ROW Inc	131,072
51.232.0.0/15	AS16509	A100 ROW Inc	131,072
51.248.0.0/15	AS16509	A100 ROW Inc	131,072
51.34.0.0/15	AS16509	A100 Row Inc	131,072
51.220.0.0/15	AS16509	A100 ROW Inc	131,072
51.174.0.0/15	AS29695	Altibox AS	131,072
51.186.0.0/15	AS5607	SKY UK Limited	131,072
51.4.0.0/15	AS8075	Microsoft Deutschland MCIO GmbH	131,072
51.196.0.0/15	AS16509	A100 ROW Inc	131,072
51.190.0.0/15	AS5607	SKY UK Limited	131,072
51.184.0.0/15	AS16509	A100 ROW Inc	131,072
51.252.0.0/15	AS25019	Saudi Telecom Company JSC	131,072
51.208.0.0/15	AS16509	A100 ROW Inc	131,072
51.188.0.0/15	AS16509	A100 ROW Inc	131,072
51.156.0.0/15	AS16509	A100 Row Inc	131,072
51.122.0.0/15	AS16509	A100 Row Inc	131,072
51.168.0.0/15	AS16509	A100 ROW Inc	131,072
51.180.0.0/15	AS16509	A100 ROW Inc	131,072
51.224.0.0/15	AS16509	Amazon Data Services European Sovereign Cloud GmbH	131,072
51.228.0.0/15	AS16509	A100 ROW Inc	131,072
51.20.0.0/16	AS16509	A100 ROW Inc	65,536
51.125.0.0/16	AS16509	A100 ROW Inc	65,536
51.155.0.0/16	AS13037	Zen Internet Limited	65,536
51.160.0.0/16	AS16509	A100 ROW Inc	65,536
51.129.0.0/16	AS16509	A100 ROW Inc	65,536
51.148.0.0/16	AS13037	Zen Internet Limited	65,536
51.139.0.0/16	AS16509	A100 ROW Inc	65,536
51.150.0.0/16	AS16509	A100 Row Inc	65,536
51.112.0.0/16	AS16509	A100 ROW Inc	65,536
51.110.0.0/16	AS16509	A100 Row Inc	65,536
51.21.0.0/16	AS16509	A100 ROW Inc	65,536
51.108.0.0/16	AS16509	A100 Row Inc	65,536
51.91.0.0/16	AS16276	OVH SAS	65,536
51.121.0.0/16	AS16509	A100 ROW Inc	65,536
51.118.0.0/16	AS16509	A100 ROW Inc	65,536
51.89.0.0/16	AS16276	OVH SAS	65,536

Hosted domains

There are 79 domain names hosted across 68 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
51.6.22.229	iserve.com.hk	3
51.6.12.34	smetcalfe.info	3
51.7.65.13	wingvista.com	2
51.6.55.17	planetming.co.uk	2
51.7.148.10	cons-house.com	2
51.7.138.235	westmarch.dev	2
51.7.225.163	eth1.co.uk	2
51.6.183.98	darkproject.co.uk	2
51.7.214.219	fororke.com	2
51.7.202.79	thehunt.uk	2
51.6.160.73	egavas.co.uk	2
51.6.242.240	jsapsed.co.uk	1
51.7.134.240	aplicalc.co.uk	1
51.7.187.131	willowbrook435.co.uk	1
51.7.86.185	possu.ms	1
51.7.213.99	remixuhc.net	1
51.6.147.53	jamesyao.co.uk	1
51.6.78.102	bronstein.co.uk	1
51.7.94.115	caveprotectionagency.com	1
51.6.250.6	westmarch.dev	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

Read more

Pingable IPs

71,846 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
51.6.17.64	AS6871 Plusnet	`4.70ms` from Erith, GB
51.6.34.236	AS6871 Plusnet	`8.57ms` from London, GB
51.6.4.255	AS6871 Plusnet	`7.39ms` from London, GB
51.6.26.130	AS6871 Plusnet	`5.52ms` from Erith, GB
51.6.12.11	AS6871 Plusnet	`3.45ms` from London, GB
51.6.21.123	AS6871 Plusnet	`6.52ms` from London, GB
51.6.23.239	AS6871 Plusnet	`6.55ms` from Erith, GB
51.6.14.121	AS6871 Plusnet	`3.01ms` from London, GB
51.6.11.17	AS6871 Plusnet	`10.78ms` from Erith, GB
51.6.18.62	AS6871 Plusnet	`3.84ms` from London, GB
51.6.7.73	AS6871 Plusnet	`8.67ms` from London, GB
51.6.6.2	AS6871 Plusnet	`6.50ms` from London, GB
51.6.2.206	AS6871 Plusnet	`7.07ms` from Erith, GB
51.6.8.37	AS6871 Plusnet	`10.27ms` from Erith, GB
51.6.9.60	AS6871 Plusnet	`2.18ms` from London, GB
51.6.13.248	AS6871 Plusnet	`1.71ms` from London, GB
51.6.0.143	AS6871 Plusnet	`12.79ms` from Erith, GB
51.6.28.9	AS6871 Plusnet	`4.25ms` from Erith, GB
51.6.24.159	AS6871 Plusnet	`10.51ms` from London, GB
51.6.25.37	AS6871 Plusnet	`4.80ms` from London, GB
51.6.33.186	AS6871 Plusnet	`3.92ms` from Erith, GB
51.6.3.146	AS6871 Plusnet	`8.36ms` from London, GB
51.6.27.151	AS6871 Plusnet	`3.18ms` from London, GB
51.6.10.118	AS6871 Plusnet	`5.57ms` from London, GB
51.6.1.94	AS6871 Plusnet	`3.79ms` from London, GB

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
54.244.237.127	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
45.253.140.79	AS45062 Netease-Network	`3.71ms` from Hangzhou, CN
82.61.202.127	AS3269 Telecom Italia S.p.A.	`9.27ms` from Milan, IT
109.165.4.239	AS12389 PJSC Rostelecom	`16.97ms` from Moscow, RU
71.0.151.255	AS209 CenturyLink Communications, LLC	`0.67ms` from Orlando, US
62.39.148.63	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`1.06ms` from Paris, FR
189.142.44.47	AS8151 UNINET	`5.00ms` from Santiago de Queretaro, MX
116.123.208.15	AS9318 SK Broadband Co Ltd	`1.48ms` from Seoul, KR
129.78.111.159	AS23719 University of Sydney	`0.64ms` from Sydney, AU
118.162.11.111	AS3462 Data Communication Business Group	`0.77ms` from Taipei, TW
152.89.45.191	AS48715 Sefroyek Pardaz Engineering PJSC	`15.61ms` from Yerevan, AM
98.222.254.63	AS7922 Comcast Cable Communications, LLC	`3.85ms` from Chicago, US
3.22.147.175	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
23.33.166.95	AS16625 Akamai Technologies, Inc.	`0.55ms` from Dallas, US
169.59.254.95	AS36351 IBM Cloud	`0.95ms` from Dallas, US
77.0.21.239	AS6805 Telefonica Germany GmbH & Co.OHG	`2.32ms` from Hamburg, DE
62.30.69.111	AS5089 Virgin Media Limited	`8.95ms` from London, GB
97.238.248.239	AS6167 Verizon Business	`19.62ms` from New York City, US
73.190.127.127	AS7922 Comcast Cable Communications, LLC	`7.78ms` from Portland, US
24.199.103.31	AS14061 DigitalOcean, LLC	`0.23ms` from Santa Clara, US
72.196.221.63	AS22773 Cox Communications Inc.	`4.82ms` from Ashburn, US
111.32.168.111	AS9808 China Mobile Communications Group Co., Ltd.	`3.01ms` from Beijing, CN
193.225.11.143	AS1955 KIFU (Governmental Info Tech Development Agency)	`0.26ms` from Budapest, HU
105.196.228.143	AS24835 Vodafone Data	`4.72ms` from Cairo, EG
144.24.75.79	AS31898 Oracle Corporation	`0.17ms` from Chuncheon, KR

Traceroute

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

traceroute -a -n -q1 51.6.82.245

traceroute to 51.6.82.245 (51.6.82.245): 64 hops max, 52 byte packets

1 [AS136258] 45.154.205.1 0.425 ms

2 *

3 [] 195.66.236.10 1.37 ms

4 [AS2856] 194.72.16.69 2.072 ms

5 *

6 *

7 [AS6871] 51.6.82.245 5.592 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On December 6th 2025

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