51.64.0.0/16

AS211077 · UK Home Office (The Secretary of State for the Home Department)

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Summary

Country	United Kingdom
Domain	homeoffice.gov.uk
ASN	AS211077
Registry	RIPE
ID	UK-HO-LECN

WHOIS Details

inetnum:        51.64.0.0 - 51.64.255.255
netname:        UK-HO-LECN
country:        GB
org:            ORG-UHOT1-RIPE
admin-c:        NET26-RIPE
tech-c:         NET26-RIPE
abuse-c:        AR62973-RIPE
status:         LEGACY
mnt-by:         lir-uk-ukhome-1-MNT
created:        2021-05-28T14:17:16Z
last-modified:  2021-09-14T06:02:01Z
source:         RIPE
abuse-email:    N&INetworkOperations@homeoffice.gov.uk
abuse-c:        AR62973-RIPE
abuse-org:      ORG-UHOT1-RIPE

organisation:   ORG-UHOT1-RIPE
org-name:       UK Home Office (The Secretary of State for the Home Department)
org-type:       LIR
address:        2 Marsham Street
address:        SW1P 4DF
address:        London
address:        UNITED KINGDOM
country:        GB
phone:          +44 345 010 0125
e-mail:         N&INetworkOperations@homeoffice.gov.uk
admin-c:        NET26-RIPE
tech-c:         NET26-RIPE
abuse-c:        AR62973-RIPE
mnt-ref:        lir-uk-ukhome-1-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         lir-uk-ukhome-1-MNT
created:        2021-04-23T11:51:44Z
last-modified:  2021-07-07T11:01:59Z
source:         RIPE

role:           Network Engineering Team
address:        2 Marsham Street
address:        SW1P 4DF
address:        London
address:        UNITED KINGDOM
phone:          +44 345 010 0125
e-mail:         N&INetworkOperations@homeoffice.gov.uk
nic-hdl:        NET26-RIPE
mnt-by:         lir-uk-ukhome-1-MNT
created:        2021-04-23T11:51:43Z
last-modified:  2021-04-23T11:51:44Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 51.0.0.0/8

Range	ASN	Company	Num of IPs
51.158.0.0/15	AS12876	Scaleway	131,072
51.156.0.0/15	AS16509	A100 Row Inc	131,072
51.252.0.0/15	AS25019	Saudi Telecom Company JSC	131,072
51.196.0.0/15	AS16509	A100 ROW Inc	131,072
51.254.0.0/15	AS16276	OVH SAS	131,072
51.168.0.0/15	AS16509	A100 ROW Inc	131,072
51.244.0.0/15	AS16509	A100 ROW Inc	131,072
51.94.0.0/15	AS16509	A100 ROW Inc	131,072
51.182.0.0/15	AS5607	SKY UK Limited	131,072
51.224.0.0/15	AS16509	Amazon Data Services European Sovereign Cloud GmbH	131,072
51.176.0.0/15	AS16509	A100 ROW Inc	131,072
51.180.0.0/15	AS16509	A100 ROW Inc	131,072
51.214.0.0/15	AS16509	A100 Row Inc	131,072
51.16.0.0/15	AS16509	A100 Row Inc	131,072
51.220.0.0/15	AS16509	A100 ROW Inc	131,072
51.236.0.0/15	AS16509	A100 ROW Inc	131,072
51.248.0.0/15	AS16509	A100 ROW Inc	131,072
51.48.0.0/15	AS16509	A100 ROW Inc	131,072
51.216.0.0/15	AS16509	A100 ROW Inc	131,072
51.174.0.0/15	AS29695	Altibox AS	131,072
51.190.0.0/15	AS5607	SKY UK Limited	131,072
51.4.0.0/15	AS8075	Microsoft Deutschland MCIO GmbH	131,072
51.212.0.0/15	AS16509	A100 ROW Inc	131,072
51.6.0.0/15	AS6871		131,072
51.192.0.0/15	AS16509	A100 ROW Inc	131,072
51.186.0.0/15	AS5607	SKY UK Limited	131,072
51.208.0.0/15	AS16509	A100 ROW Inc	131,072
51.184.0.0/15	AS16509	A100 ROW Inc	131,072
51.172.0.0/15	AS16509	Amazon Data Services European Sovereign Cloud GmbH	131,072
51.34.0.0/15	AS16509	A100 Row Inc	131,072
51.188.0.0/15	AS16509	A100 ROW Inc	131,072
51.122.0.0/15	AS16509	A100 Row Inc	131,072
51.228.0.0/15	AS16509	A100 ROW Inc	131,072
51.232.0.0/15	AS16509	A100 ROW Inc	131,072
51.121.0.0/16	AS16509	A100 ROW Inc	65,536
51.134.0.0/16	AS16509	A100 ROW Inc	65,536
51.20.0.0/16	AS16509	A100 ROW Inc	65,536
51.118.0.0/16	AS16509	A100 ROW Inc	65,536
51.139.0.0/16	AS16509	A100 ROW Inc	65,536
51.21.0.0/16	AS16509	A100 ROW Inc	65,536
51.91.0.0/16	AS16276	OVH SAS	65,536
51.154.0.0/16	AS15796	Salt Mobile SA	65,536
51.89.0.0/16	AS16276	OVH SAS	65,536
51.108.0.0/16	AS16509	A100 Row Inc	65,536
51.83.0.0/16	AS16276	OVH SAS	65,536
51.150.0.0/16	AS16509	A100 Row Inc	65,536
51.77.0.0/16	AS16276	OVH SAS	65,536
51.75.0.0/16	AS16276	OVH SAS	65,536
51.68.0.0/16	AS16276	OVH SAS	65,536
51.38.0.0/16	AS16276	OVH SAS	65,536

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
51.64.137.76	ctmo.cn	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

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

IP Address	ASN	Details
51.64.32.253	AS2856 British Telecommunications PLC	`4.15ms` 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
104.123.42.192	AS16625 Akamai Technologies, Inc.	`0.15ms` from Amsterdam, NL
54.224.205.128	AS14618 Amazon.com, Inc.	`0.55ms` from Ashburn, US
64.27.199.96	AS27553 Telnet Worldwide, Inc.	`0.59ms` from Detroit, US
82.117.245.192	AS16276 OVH SAS	`0.21ms` from Frankfurt am Main, DE
149.224.27.176	AS15943 wilhelm.tel GmbH	`0.42ms` from Hamburg, DE
73.228.130.80	AS7922 Comcast Cable Communications, LLC	`3.29ms` from Minneapolis, US
121.229.5.176	AS4134 CHINANET-BACKBONE	`4.75ms` from Nanjing, CN
126.110.94.96	AS17676 SoftBank Corp.	`7.93ms` from Osaka, JP
23.44.245.64	AS16625 Akamai Technologies, Inc.	`0.10ms` from Seattle, US
58.123.245.160	AS9318 SK Broadband Co Ltd	`1.09ms` from Seoul, KR
202.235.131.208	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`1.62ms` from Tokyo, JP
80.208.131.32	AS15600 Quickline AG	`2.82ms` from Zuerich, CH
80.60.89.112	AS1136 KPN B.V.	`3.09ms` from Amsterdam, NL
71.67.191.192	AS10796 Charter Communications Inc	`15.33ms` from Cleveland, US
3.29.39.160	AS16509 Amazon.com, Inc.	`1.25ms` from Dubai, AE
68.32.134.192	AS7922 Comcast Cable Communications, LLC	`7.44ms` from Flint, US
81.210.176.224	AS3209 Vodafone GmbH	`2.64ms` from Frankfurt am Main, DE
14.37.103.112	AS4766 Korea Telecom	`0.73ms` from Incheon, KR
144.91.76.0	AS51167 Contabo GmbH	`0.26ms` from Lauterbourg, FR
78.146.82.240	AS13285 TalkTalk Communications Limited	`4.33ms` from London, GB
119.228.83.176	AS17511 OPTAGE Inc.	`1.92ms` from Osaka, JP
37.224.59.176	AS25019 Saudi Telecom Company JSC	`0.83ms` from Riyadh, SA
84.98.14.80	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`11.43ms` from Saint-Denis, FR
122.224.46.144	AS58461 CT-HangZhou-IDC	`5.33ms` from Shanghai, CN
121.209.164.192	AS1221 Telstra Limited	`3.42ms` from Sydney, AU

Traceroute

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

traceroute -a -n -q1 -m4 51.64.200.254

traceroute to 51.64.200.254 (51.64.200.254): 4 hops max, 52 byte packets

1 [AS202105] 87.237.225.3 0.174 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Jeddah, SA

On March 13th 2026

What are IP address ranges?

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