63.135.72.0/21

AS51809 · BRSK Limited

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Summary

Country	United Kingdom
Domain	brsk.co.uk
ASN	AS51809
Registry	RIPE
ID	UK-BRSK-20031121

WHOIS Details

inetnum:        63.135.72.0 - 63.135.79.255
netname:        UK-BRSK-20031121
descr:          Broadband customers
country:        GB
org:            ORG-BL479-RIPE
admin-c:        BRSK-RIPE
tech-c:         BRSK-RIPE
remarks:        Geofeed https://geofeed.brsk.co.uk/geofeed.csv
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         BRSK-MNT
created:        2021-04-08T14:35:00Z
last-modified:  2024-11-28T11:21:09Z
source:         RIPE
abuse-email:    abuse@brsk.co.uk
abuse-c:        AR62253-RIPE
abuse-org:      ORG-BL479-RIPE

organisation:   ORG-BL479-RIPE
org-name:       BRSK Limited
org-type:       LIR
address:        Unit H The Courtyard Tewkesbury Business Park
address:        GL20 8GD
address:        Tewkesbury
address:        UNITED KINGDOM
country:        GB
phone:          +44 20 3868 6825
e-mail:         info@brsk.co.uk
admin-c:        BRSK-RIPE
admin-c:        JODY-RIPE
tech-c:         BRSK-RIPE
tech-c:         JODY-RIPE
abuse-c:        AR62253-RIPE
mnt-ref:        BRSK-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         BRSK-MNT
created:        2021-01-13T09:04:48Z
last-modified:  2026-01-20T15:01:10Z
source:         RIPE
abuse-email:    abuse@brsk.co.uk
abuse-c:        AR62253-RIPE
abuse-org:      undefined

role:           BRSK NOC
address:        Unit H The Courtyard, Tewkesbury Business Park, Tewkesbury, GL20 8GD, United Kingdom
e-mail:         noc@brsk.co.uk
phone:          +442039255292
nic-hdl:        BRSK-RIPE
mnt-by:         BRSK-MNT
created:        2021-04-12T08:30:29Z
last-modified:  2026-01-20T14:52:26Z
source:         RIPE

route:          63.135.72.0/21
origin:         AS51809
mnt-by:         BRSK-MNT
created:        2021-04-09T07:58:58Z
last-modified:  2021-04-12T09:31:22Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 63.135.0.0/16

Range	ASN	Company	Num of IPs
63.135.0.0/19	AS11260	Persona Communications Inc.	8,192
63.135.192.0/19	AS7385	Allstream Business US, LLC	8,192
63.135.96.0/19	AS14992	Newtek Technology Solutions, Inc	8,192
63.135.128.0/19	AS3663	NetNet	8,192
63.135.224.0/20	AS22549	KUDUCOM	4,096
63.135.32.0/20	AS10430	Saint Martin's University	4,096
63.135.48.0/20	AS13370	Ziply Fiber	4,096
63.135.176.0/20	AS19331	Twin Lakes Telephone Cooperative Corporation	4,096
63.135.240.0/20	AS10396	Verizon Wireless Puerto Rico, Inc.	4,096
63.135.172.0/22	AS398876	All Tribal Networks LLC	1,024
63.135.70.0/23	AS400141	Pattersonville Telephone Co	512
63.135.66.0/23	AS11090	Matanuska Telecom Association, Incorporated	512
63.135.166.0/24	AS395336	MacStadium, Inc.	256
63.135.161.0/24	AS206092	AS206092 Internet Utilities Europe and Asia Limited	256
63.135.171.0/24	AS398346	Micro Logic	256
63.135.64.0/24	AS19151	BroadbandONE, LLC	256
63.135.170.0/24	AS395336	MacStadium, Inc.	256
63.135.65.0/24	AS23342	ONTRAPORT, INC.	256
63.135.162.0/24	AS27176	Private Customer	256
63.135.69.0/24	AS11090	Matanuska Telecom Association, Incorporated	256

Hosted domains

There are 404 domain names hosted across 175 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
63.135.74.14	lothersdalemill.org.uk	63
63.135.72.21	halloween.my	16
63.135.73.99	tracklin.es	14
63.135.73.175	rober.tw	12
63.135.76.195	tiktokpowertools.com	11
63.135.74.84	wincommander.co.uk	10
63.135.76.75	clocklet.uk	9
63.135.75.70	allw.at	8
63.135.72.159	hammysworld.com	6
63.135.79.85	doubledeckerchecker.org	6
63.135.72.8	amour-beauty.uk	6
63.135.79.115	andyhalford.com	5
63.135.78.134	perfectlineltd.com	5
63.135.73.174	thewalkingdeaf.cloud	4
63.135.76.49	s11.no	4
63.135.74.87	skylandemporium.xyz	4
63.135.78.93	weddingsbymark.co.uk	4
63.135.79.87	arcmotion.com	4
63.135.77.149	mobsoc.co.uk	4
63.135.76.204	silvergray.uk	4

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

1,466 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
63.135.75.103	AS51809 BRSK Limited	`5.73ms` from London, GB
63.135.74.96	AS51809 BRSK Limited	`5.67ms` from London, GB
63.135.77.23	AS51809 BRSK Limited	`5.80ms` from London, GB
63.135.72.15	AS51809 BRSK Limited	`5.64ms` from London, GB
63.135.78.121	AS51809 BRSK Limited	`5.55ms` from London, GB
63.135.76.43	AS51809 BRSK Limited	`5.63ms` from London, GB
63.135.79.87	AS51809 BRSK Limited	`5.44ms` from London, GB
63.135.73.48	AS51809 BRSK Limited	`5.52ms` 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
68.207.92.229	AS33363 Charter Communications, Inc	`19.00ms` from Atlanta, US
36.133.56.21	AS9808 China Mobile Communications Group Co., Ltd.	`0.70ms` from Beijing, CN
74.42.171.149	AS5650 Frontier Communications of America, Inc.	`9.60ms` from Chicago, US
3.250.253.5	AS16509 Amazon.com, Inc.	`0.21ms` from Dublin, IE
2.19.198.117	AS20940 Akamai International B.V.	`0.21ms` from Frankfurt am Main, DE
218.54.110.229	AS9318 SK Broadband Co Ltd	`7.01ms` from Incheon, KR
118.103.229.101	AS140900 Getlinks (SMC-Private) Limited	`12.18ms` from Karachi, PK
87.229.214.101	AS3216 PJSC "Vimpelcom"	`1.02ms` from Krasnoyarsk, RU
81.13.93.149	AS5523 CREDO TELECOM	`0.87ms` from Moscow, RU
86.217.33.85	AS3215 Orange S.A.	`7.48ms` from Paris, FR
52.5.107.117	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
142.147.85.197	AS25649 AYERA TECHNOLOGIES, INC.	`2.89ms` from San Jose, US
180.81.12.53	AS9316 DACOM-PUBNETPLUS	`2.32ms` from Seoul, KR
60.163.137.21	AS4134 CHINANET-BACKBONE	`7.50ms` from Shanghai, CN
185.170.56.5	AS212335 Simoresta UAB	`0.92ms` from Singapore, SG
173.95.219.69	AS11426 Charter Communications Inc	`0.61ms` from Ashburn, US
24.250.51.181	AS22773 Cox Communications Inc.	`9.43ms` from Boston, US
34.134.208.5	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
223.18.45.85	AS9304 HGC Global Communications Limited	`1.32ms` from Hong Kong, HK
87.224.127.53	AS16082 Spitfire Network Services Limited	`0.79ms` from London, GB
90.211.128.117	AS5607 Sky UK Limited	`5.55ms` from London, GB
76.158.106.181	AS7922 Comcast Cable Communications, LLC	`7.73ms` from Los Angeles, US
124.182.70.165	AS1221 Telstra Limited	`2.98ms` from Melbourne, AU
34.111.197.149	AS396982 Google LLC	`0.07ms` from Melbourne, AU
46.28.130.197	AS39586 NPP Saturn Telecom Ltd.	`1.67ms` from Novosibirsk, RU

Traceroute

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

traceroute -a -n -q1 -f2 63.135.78.237

traceroute to 63.135.78.237 (63.135.78.237): 64 hops max, 52 byte packets

2 [] 5.57.82.40 7.088 ms

3 [AS212655] 45.92.46.27 0.651 ms

4 *

5 *

6 [AS51809] 63.135.78.237 8.953 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On January 19th 2026

What are IP address ranges?

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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