51.148.0.0/16

AS13037 · Zen Internet Ltd

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Summary

Country	United Kingdom
Domain	zen.co.uk
ASN	AS13037
Registry	RIPE
ID	UK-ZEN

WHOIS Details

inetnum:        51.148.0.0 - 51.148.255.255
netname:        UK-ZEN
descr:          Zen Internet Limited
country:        GB
org:            ORG-ZIL1-RIPE
admin-c:        ZIRA1-RIPE
tech-c:         ZIRA1-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         ZEN-MNT
created:        2015-09-23T13:02:13Z
last-modified:  2024-07-22T12:46:17Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        AR18024-RIPE
abuse-org:      ORG-ZIL1-RIPE

organisation:   ORG-ZIL1-RIPE
org-name:       Zen Internet Ltd
country:        GB
org-type:       LIR
address:        Sandbrook Park, Sandbrook Way
address:        OL11 1RY
address:        Rochdale
address:        UNITED KINGDOM
phone:          +44 1706 902000
fax-no:         +44 1706 902005
e-mail:         [email protected]
admin-c:        RT1337-RIPE
admin-c:        ZIRA1-RIPE
admin-c:        BC8726-RIPE
abuse-c:        AR18024-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        ZEN-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         ZEN-MNT
created:        2004-04-17T12:24:23Z
last-modified:  2022-07-28T12:34:09Z
source:         RIPE

role:           Zen Internet RIPE Admin
address:        Zen Internet
address:        Sandbrook Park
address:        Sandbrook Way
address:        Rochdale
address:        OL11 1RY
address:        United Kingdom
phone:          +44 1706 902 000
fax-no:         +44 1706 902 005
e-mail:         [email protected]
admin-c:        RT1337-RIPE
tech-c:         BC8726-RIPE
nic-hdl:        ZIRA1-RIPE
mnt-by:         ZEN-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2023-08-02T10:21:33Z
source:         RIPE

route:          51.148.0.0/16
descr:          Zen Internet Ltd
origin:         AS13037
mnt-by:         ZEN-MNT
created:        2015-11-10T13:25:26Z
last-modified:  2016-10-06T10:48:59Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 51.0.0.0/8

Range	ASN	Company	Num of IPs
51.6.0.0/15	AS6871		131,072
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
51.139.0.0/16	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 1,393 domain names hosted across 276 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
51.148.48.62	rfweb.org	263
51.148.113.1	dspmidlands.co.uk	125
51.148.48.50	cwfpc.co.uk	112
51.148.48.6	princeandking.com	70
51.148.48.51	vetmark.eu	69
51.148.4.100	metalproductservices.com	63
51.148.156.127	081.co.uk	47
51.148.48.154	darcdirectory.com	40
51.148.48.75	summerswimmingpools.com	34
51.148.113.34	nabwood.co.uk	28
51.148.4.11	bolivia-adventure.com	23
51.148.48.79	pbpharmacreative.co.uk	23
51.148.159.117	novagraphics.uk	15
51.148.50.27	cg-sc.co	14
51.148.50.21	awayfromhomepos.co.uk	13
51.148.132.135	elecvault.co.uk	11
51.148.128.253	medicalfetish.co.uk	11
51.148.162.180	m2defence.com	10
51.148.48.64	clickswatches.uk	10
51.148.48.99	schoolcrossingpatrol.org.uk	9

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

19,428 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
51.148.155.148	AS13037 Zen Internet Ltd	`2.13ms` from London, GB
51.148.179.253	AS13037 Zen Internet Ltd	`1.01ms` from London, GB
51.148.119.166	AS13037 Zen Internet Ltd	`0.95ms` from London, GB
51.148.103.162	AS13037 Zen Internet Ltd	`0.99ms` from London, GB
51.148.181.219	AS13037 Zen Internet Ltd	`2.30ms` from Manchester, GB
51.148.60.73	AS13037 Zen Internet Ltd	`0.72ms` from Manchester, GB
51.148.152.215	AS13037 Zen Internet Ltd	`1.39ms` from Manchester, GB
51.148.190.92	AS13037 Zen Internet Ltd	`2.00ms` from Manchester, GB
51.148.45.254	AS13037 Zen Internet Ltd	`0.93ms` from London, GB
51.148.104.100	AS13037 Zen Internet Ltd	`0.28ms` from Manchester, GB
51.148.71.173	AS13037 Zen Internet Ltd	`0.97ms` from Manchester, GB
51.148.114.137	AS13037 Zen Internet Ltd	`1.18ms` from London, GB
51.148.143.126	AS13037 Zen Internet Ltd	`2.24ms` from London, GB
51.148.56.54	AS13037 Zen Internet Ltd	`0.98ms` from Manchester, GB
51.148.187.166	AS13037 Zen Internet Ltd	`2.04ms` from Manchester, GB
51.148.39.86	AS13037 Zen Internet Ltd	`0.65ms` from Manchester, GB
51.148.101.142	AS13037 Zen Internet Ltd	`0.91ms` from Manchester, GB
51.148.251.242	AS13037 Zen Internet Ltd	`1.43ms` from Manchester, GB
51.148.37.190	AS13037 Zen Internet Ltd	`0.66ms` from Manchester, GB
51.148.50.41	AS13037 Zen Internet Ltd	`0.51ms` from London, GB
51.148.73.110	AS13037 Zen Internet Ltd	`0.47ms` from London, GB
51.148.137.78	AS13037 Zen Internet Ltd	`1.37ms` from London, GB
51.148.9.158	AS13037 Zen Internet Ltd	`1.66ms` from London, GB
51.148.174.185	AS13037 Zen Internet Ltd	`1.91ms` from London, GB
51.148.183.201	AS13037 Zen Internet Ltd	`1.15ms` from Manchester, 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
100.22.132.176	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
35.85.250.240	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
212.55.129.64	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`4.26ms` from Braga, PT
181.1.139.144	AS7303 Telecom Argentina S.A.	`15.06ms` from Buenos Aires, AR
144.6.175.240	AS4764 Aussie Broadband	`1.17ms` from Canberra, AU
24.92.97.32	AS11427 Charter Communications Inc	`0.94ms` from Dallas, US
73.162.92.208	AS7922 Comcast Cable Communications, LLC	`5.54ms` from Fremont, US
2.221.37.0	AS5607 Sky UK Limited	`2.69ms` from London, GB
92.24.236.208	AS13285 TalkTalk Communications Limited	`1.29ms` from Manchester, GB
148.75.172.160	AS6128 Cablevision Systems Corp.	`3.56ms` from Newark, US
185.231.170.64	AS60456 REVTELECOM GROUP SAS	`1.35ms` from Paris, FR
112.227.9.192	AS4837 CHINA UNICOM China169 Backbone	`5.26ms` from Qingdao, CN
192.184.208.16	AS46375 Sonic Telecom LLC	`0.52ms` from San Jose, US
121.149.36.144	AS4766 Korea Telecom	`6.88ms` from Seoul, KR
180.154.62.64	AS4812 China Telecom (Group)	`4.72ms` from Shanghai, CN
60.134.205.96	AS17676 SoftBank Corp.	`3.01ms` from Tokyo, JP
153.176.230.96	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.88ms` from Tokyo, JP
35.160.113.112	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
104.73.10.208	AS16625 Akamai Technologies, Inc.	`0.56ms` from Boston, US
85.216.188.96	AS6830 Liberty Global Europe Holding B.V.	`8.22ms` from Bratislava, SK
102.41.95.32	AS8452 TE-AS	`4.06ms` from Cairo, EG
66.159.198.192	AS394089 Google LLC	`0.20ms` from Chang-hua, TW
76.182.122.160	AS11426 Charter Communications Inc	`5.75ms` from Charlotte, US
75.212.244.64	AS6167 Verizon Business	`19.35ms` from Dallas, US
80.153.207.80	AS3320 Deutsche Telekom AG	`8.64ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -m5 51.148.18.60

traceroute to 51.148.18.60 (51.148.18.60): 5 hops max, 52 byte packets

1 [AS26548] 23.159.160.1 0.233 ms

2 [AS26548] 169.197.81.64 0.386 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in New York City, US

On December 6th 2025

What are IP address ranges?

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