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
51.172.0.0/15	AS16509	Amazon Data Services European Sovereign Cloud GmbH	131,072
51.94.0.0/15	AS16509	A100 ROW Inc	131,072
51.196.0.0/15	AS16509	A100 ROW Inc	131,072
51.192.0.0/15	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
51.186.0.0/15	AS5607	SKY UK Limited	131,072
51.4.0.0/15	AS8075	Microsoft Deutschland MCIO GmbH	131,072
51.214.0.0/15	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
51.168.0.0/15	AS16509	A100 ROW Inc	131,072
51.224.0.0/15	AS16509	Amazon Data Services European Sovereign Cloud GmbH	131,072
51.232.0.0/15	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
51.182.0.0/15	AS5607	SKY UK Limited	131,072
51.216.0.0/15	AS16509	A100 ROW Inc	131,072
51.6.0.0/15	AS6871		131,072
51.190.0.0/15	AS5607	SKY UK Limited	131,072
51.180.0.0/15	AS16509	A100 ROW Inc	131,072
51.184.0.0/15	AS16509	A100 ROW Inc	131,072
51.174.0.0/15	AS29695	Altibox AS	131,072
51.156.0.0/15	AS16509	A100 Row Inc	131,072
51.122.0.0/15	AS16509	A100 Row Inc	131,072
51.188.0.0/15	AS16509	A100 ROW Inc	131,072
51.254.0.0/15	AS16276	OVH SAS	131,072
51.176.0.0/15	AS16509	A100 ROW Inc	131,072
51.212.0.0/15	AS16509	A100 ROW Inc	131,072
51.16.0.0/15	AS16509	A100 Row Inc	131,072
51.228.0.0/15	AS16509	A100 ROW Inc	131,072
51.139.0.0/16	AS16509	A100 ROW Inc	65,536
51.150.0.0/16	AS16509	A100 Row Inc	65,536
51.20.0.0/16	AS16509	A100 ROW Inc	65,536
51.155.0.0/16	AS13037	Zen Internet Limited	65,536
51.125.0.0/16	AS16509	A100 ROW Inc	65,536
51.148.0.0/16	AS13037	Zen Internet Limited	65,536
51.131.0.0/16	AS16509	A100 ROW Inc	65,536
51.134.0.0/16	AS16509	A100 ROW Inc	65,536
51.110.0.0/16	AS16509	A100 Row Inc	65,536
51.108.0.0/16	AS16509	A100 Row Inc	65,536
51.160.0.0/16	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
51.89.0.0/16	AS16276	OVH SAS	65,536
51.112.0.0/16	AS16509	A100 ROW Inc	65,536
51.83.0.0/16	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
51.64.32.1	AS2856 British Telecommunications PLC	`4.35ms` 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
73.61.69.208	AS7922 Comcast Cable Communications, LLC	`5.84ms` from Boston, US
76.190.242.128	AS10796 Charter Communications Inc	`13.05ms` from Columbus, US
64.27.199.96	AS27553 Telnet Worldwide, Inc.	`0.53ms` from Detroit, US
138.124.78.96	AS210644 AEZA INTERNATIONAL LTD	`0.47ms` from Frankfurt am Main, DE
83.196.188.224	AS3215 Orange S.A.	`9.59ms` from Frankfurt am Main, DE
5.67.99.0	AS5607 Sky UK Limited	`3.51ms` from London, GB
151.182.59.64	AS12430 VODAFONE ESPANA S.A.U.	`14.50ms` from Madrid, ES
47.201.236.32	AS5650 Frontier Communications of America, Inc.	`5.45ms` from Miami, US
73.91.85.32	AS7922 Comcast Cable Communications, LLC	`6.20ms` from Miami, US
118.106.15.192	AS18126 Chubu Telecommunications Company, Inc.	`5.84ms` from Osaka, JP
48.192.207.64	AS8075 Microsoft Corporation	`0.25ms` from San Antonio, US
129.134.115.208	AS32934 Facebook, Inc.	`0.17ms` from San Jose, US
183.106.19.128	AS4766 Korea Telecom	`4.86ms` from Seoul, KR
84.55.123.224	AS33885 Telenor Sverige AB	`0.57ms` from Stockholm, SE
211.135.165.160	AS2518 BIGLOBE Inc.	`11.03ms` from Tokyo, JP
184.145.124.128	AS577 Bell Canada	`1.88ms` from Toronto, CA
81.204.189.112	AS1136 KPN B.V.	`2.27ms` from Amsterdam, NL
24.250.137.80	AS22773 Cox Communications Inc.	`12.16ms` from Atlanta, US
16.147.168.80	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
23.8.8.32	AS16625 Akamai Technologies, Inc.	`0.93ms` from Chicago, US
23.192.247.224	AS16625 Akamai Technologies, Inc.	`0.34ms` from Duesseldorf, DE
45.235.26.0	AS267381 SLIM FIBRA DO BRASIL	`7.28ms` from Fortaleza, BR
6.15.218.192	AS668 United States Department of Defense (DoD)	`1.78ms` from Los Angeles, US
74.89.22.16	AS6128 Cablevision Systems Corp.	`6.25ms` from New York City, US
60.92.117.112	AS17676 SoftBank Corp.	`3.80ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f4 -m8 51.64.18.153

traceroute to 51.64.18.153 (51.64.18.153): 8 hops max, 52 byte packets

4 [AS3356] 195.50.117.30 147.49 ms

5 [AS5400] 166.49.209.195 147.257 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Bogota, CO

On January 19th 2026

What are IP address ranges?

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