81.17.64.0/20

AS21470 · South West Communications Group Ltd

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Summary

Country	United Kingdom
Domain	southwestcommunications.co.uk
ASN	AS21470
Registry	RIPE
ID	UK-SWTNETWORKS-20020108

WHOIS Details

inetnum:        81.17.64.0 - 81.17.79.255
org:            ORG-SNL4-RIPE
netname:        UK-SWTNETWORKS-20020108
country:        GB
admin-c:        JH444-RIPE
tech-c:         JH444-RIPE
tech-c:         LG7001-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SWCDC-MNT
mnt-routes:     SWCDC-MNT
notify:         [email protected]
created:        2002-01-08T15:41:34Z
last-modified:  2020-11-13T08:55:51Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        AA26847-RIPE
abuse-org:      ORG-SNL4-RIPE

organisation:   ORG-SNL4-RIPE
org-name:       South West Communications Group Ltd
country:        GB
org-type:       LIR
address:        Communications House Moor Lane/Sowton/Exeter
address:        EX2 7JF
address:        Devon
address:        UNITED KINGDOM
phone:          +441392369369
fax-no:         +441392360011
mnt-ref:        SWCDC-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SWCDC-MNT
admin-c:        JH444-RIPE
admin-c:        LG7001-RIPE
e-mail:         [email protected]
abuse-c:        AA26847-RIPE
created:        2004-04-17T12:22:02Z
last-modified:  2020-12-16T12:34:15Z
source:         RIPE

person:         John Holdstock
address:        South West Communications Group Ltd
address:        Communications House
address:        Moor Lane, Sowton
address:        Exeter, Devon, England.
phone:          +0044 1392 369369
fax-no:         +0044 1392 360011
nic-hdl:        JH444-RIPE
e-mail:         [email protected]
notify:         [email protected]
created:        2001-11-26T17:42:50Z
last-modified:  2016-04-06T00:51:21Z
mnt-by:         RIPE-NCC-LOCKED-MNT
source:         RIPE

person:         Lindsey Green
address:        South West Communications Group LTD
address:        Communications House
address:        Moor Lane
address:        Exeter
phone:          +0044 1392 369369
nic-hdl:        LG7001-RIPE
mnt-by:         SWCDC-MNT
created:        2013-11-25T14:27:20Z
last-modified:  2013-11-25T14:27:20Z
source:         RIPE

route:          81.17.64.0/20
descr:          South West Communications Group Ltd
origin:         AS21470
mnt-by:         SWCDC-MNT
created:        2002-01-22T17:09:19Z
last-modified:  2009-10-26T10:42:32Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 81.17.0.0/16

Range	ASN	Company	Num of IPs
81.17.208.0/20	AS35833	mpex GmbH	4,096
81.17.240.0/20	AS39122	Blacknight Internet Solutions Limited	4,096
81.17.176.0/20	AS20845	DIGI - INVITEL pool	4,096
81.17.0.0/20	AS21353	JSC ER-Telecom Holding	4,096
81.17.80.0/20	AS28787	Baku Telephone Communication LLC	4,096
81.17.0.0/20	AS24588	JSC ER-Telecom Holding	4,096
81.17.16.0/20	AS51852	Private Layer INC	4,096
81.17.160.0/21	AS834	Internet Utilities Europe and Asia Limited	2,048
81.17.56.0/21	AS205544	Leaseweb UK Limited	2,048
81.17.192.0/21	AS29422	Telia Cygate Oy	2,048
81.17.168.0/21	AS834	Internet Utilities Europe and Asia Limited	2,048
81.17.200.0/21	AS15830	Equinix (Finland) Oy	2,048
81.17.224.0/22	AS25467	Akton network Slovenia	1,024
81.17.100.0/22	AS51167	Contabo GmbH	1,024
81.17.96.0/22	AS51167	Contabo GmbH	1,024
81.17.228.0/23	AS25467	Akton d.o.o.	512
81.17.232.0/23	AS25467	Akton Network Macedonia	512
81.17.236.0/23	AS25467	Akton network Bosnia and Herzegovina	512
81.17.154.0/24	AS9123	JSC TIMEWEB	256
81.17.123.0/24	AS207137	Packethub S.A.	256
81.17.122.0/24	AS212238	Packethub S.A.	256
81.17.128.0/24	AS21437	ISP TNS	256
81.17.136.0/24	AS21437	ipv4 assignment for shared hosting platform	256
81.17.140.0/24	AS21500	ipv4 assignment for VPS	256
81.17.159.0/24	AS215540	GLOBAL CONNECTIVITY SOLUTIONS LLP	256
81.17.234.0/24	AS25467	Akton Podgorica Montenegro	256
81.17.240.0/24	AS39122	Blacknight Network Infrastructure	256
81.17.141.0/24	AS60918	KHADI core net	256
81.17.120.0/24	AS7979	S.S NETSHOP INTERNET SERVICES LTD	256
81.17.158.0/24	AS8342	Limited Liability Company DZHISIIKS	256
81.17.121.0/24	AS136787	Packethub S.A.	256

Hosted domains

There are 475 domain names hosted across 66 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
81.17.75.201	walletsmarts.co.uk	59
81.17.79.76	intentor.co.uk	49
81.17.72.180	vrun.co.uk	37
81.17.72.181	psychicnow.uk	36
81.17.69.118	real-sheepskin.com	29
81.17.73.7	icobuholidaylettings.com	28
81.17.72.179	andicase.com	27
81.17.70.61	oneminmortgagecheck.com	26
81.17.78.173	silentprint.com	23
81.17.66.190	exelaw.co.uk	22
81.17.73.3	funky-products.com	21
81.17.79.75	vision4vets.co.uk	19
81.17.67.12	swisp.biz	13
81.17.70.73	digestive-health.co.uk	9
81.17.75.193	nockdeightonauctions.co.uk	5
81.17.72.75	exeterestatesltd.co.uk	5
81.17.70.74	hiltonherbsblog.fr	4
81.17.72.74	royalnavalshop.com	3
81.17.69.113	scillyflowers.com	3
81.17.77.178	hscmail.co.uk	3

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

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

IP Address	ASN	Details
81.17.75.226	AS21470 South West Communications Group Ltd	`3.81ms` from London, GB
81.17.66.217	AS21470 South West Communications Group Ltd	`3.79ms` from London, GB
81.17.74.158	AS21470 South West Communications Group Ltd	`3.87ms` from London, GB
81.17.71.236	AS21470 South West Communications Group Ltd	`4.18ms` from London, GB
81.17.68.4	AS21470 South West Communications Group Ltd	`4.24ms` from London, GB
81.17.79.202	AS21470 South West Communications Group Ltd	`3.81ms` from London, GB
81.17.77.96	AS21470 South West Communications Group Ltd	`3.81ms` from London, GB
81.17.72.178	AS21470 South West Communications Group Ltd	`3.89ms` from London, GB
81.17.65.134	AS21470 South West Communications Group Ltd	`3.98ms` from London, GB
81.17.76.68	AS21470 South West Communications Group Ltd	`3.85ms` from London, GB
81.17.70.73	AS21470 South West Communications Group Ltd	`4.13ms` from London, GB
81.17.73.158	AS21470 South West Communications Group Ltd	`3.86ms` from London, GB
81.17.78.168	AS21470 South West Communications Group Ltd	`3.82ms` 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
68.64.39.36	AS13649 Flexential Colorado Corp.	`0.76ms` from Atlanta, US
77.11.72.52	AS6805 Telefonica Germany GmbH & Co.OHG	`2.97ms` from Berlin, DE
97.245.73.52	AS6167 Verizon Business	`9.92ms` from Dallas, US
195.96.142.84	AS201341 trafficforce, UAB	`0.52ms` from Frankfurt am Main, DE
93.222.136.116	AS3320 Deutsche Telekom AG	`8.44ms` from Frankfurt am Main, DE
194.144.226.68	AS12969 Vodafone Iceland	`1.26ms` from Hafnarfjoerdur, IS
175.164.173.20	AS4837 CHINA UNICOM China169 Backbone	`8.53ms` from Liaoyang, CN
153.244.78.212	AS4713 NTT DOCOMO BUSINESS,Inc.	`4.57ms` from Osaka, JP
73.196.168.180	AS7922 Comcast Cable Communications, LLC	`7.43ms` from Secaucus, US
210.207.170.180	AS3786 LG DACOM Corporation	`1.26ms` from Seoul, KR
114.202.55.36	AS9318 SK Broadband Co Ltd	`3.45ms` from Seoul, KR
61.24.203.4	AS9824 JCOM Co., Ltd.	`11.49ms` from Tokyo, JP
73.87.25.212	AS7922 Comcast Cable Communications, LLC	`6.81ms` from Ashburn, US
66.219.24.228	AS15085 Immedion, LLC	`0.16ms` from Asheville, US
45.21.54.212	AS7018 AT&T Enterprises, LLC	`11.12ms` from Atlanta, US
192.144.204.132	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.73ms` from Beijing, CN
34.218.11.4	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
52.61.164.100	AS8987 Amazon Data Services Ireland Ltd	`0.34ms` from Boardman, US
181.110.156.20	AS7303 Telecom Argentina S.A.	`18.76ms` from Buenos Aires, AR
42.86.140.4	AS4837 CHINA UNICOM China169 Backbone	`15.60ms` from Dalian, CN
84.16.79.68	AS29222 Infomaniak Network SA	`0.77ms` from Geneve, CH
94.241.48.244	AS12389 PJSC Rostelecom	`6.96ms` from Moscow, RU
178.75.20.244	AS57044 JSC ER-Telecom Holding	`8.62ms` from Moscow, RU
58.85.62.52	AS9617 JCOM Co., Ltd.	`11.49ms` from Osaka, JP
38.14.91.4	AS54600 PEG TECH INC	`0.23ms` from San Jose, US

Traceroute

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

traceroute -a -n -q1 -f4 81.17.78.168

traceroute to 81.17.78.168 (81.17.78.168): 64 hops max, 52 byte packets

4 [AS36236] 104.225.2.192 1.293 ms

5 *

6 *

7 [AS3356] 217.163.113.30 98.632 ms

8 [AS21470] 81.17.66.241 96.599 ms

9 [AS21470] 81.17.78.168 95.943 ms

Measurement taken from

IPinfo ProbeNet in Durham, US

On December 28th 2025

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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