81.90.136.0/23

AS48901 · DSNET Ltd

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Summary

Country	United Kingdom
Domain	office.co.uk
ASN	AS48901
Parent Range	81.90.128.0/20
Registry	RIPE
ID	DSNET-UK-CSP136

WHOIS Details

inetnum:        81.90.136.0 - 81.90.136.255
netname:        DSNET-UK-CSP136
descr:          Office
country:        GB
admin-c:        DSNH1-RIPE
tech-c:         DSNH1-RIPE
status:         ASSIGNED PA
mnt-by:         DSNH-MNT
created:        2016-02-15T03:57:24Z
last-modified:  2020-09-05T15:04:43Z
source:         RIPE
abuse-email:    ripe-abuse@dsnethosting.com
abuse-c:        DSNH1-RIPE
abuse-org:      ORG-DHL1-RIPE

role:           DSNet Hostmaster Team
address:        DSNet Limited
address:        Office 340, 5 High Street
address:        Maidenhead
address:        Berkshire
address:        SL6 1JN.
address:        United Kingdom
phone:          +44 (0) 20 7183 2040
e-mail:         hostmaster@dsnethosting.com
admin-c:        SS1724-RIPE
tech-c:         SS1724-RIPE
nic-hdl:        DSNH1-RIPE
notify:         ripe-notify@dsnethosting.com
abuse-mailbox:  ripe-abuse@dsnethosting.com
mnt-by:         DSNH-MNT
created:        2002-06-25T15:14:44Z
last-modified:  2020-09-05T15:11:23Z
source:         RIPE

route:          81.90.136.0/24
descr:          DSNET-CSP-81.90.136.0-24
origin:         AS48901
notify:         ripe-notify@dsnethosting.com
mnt-by:         DSNH-MNT
mnt-by:         STEVE-MNT
created:        2016-02-17T14:16:02Z
last-modified:  2021-01-01T22:27:53Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 81.90.136.0/23

Range	ASN	Company	Num of IPs
81.90.128.0/20	AS25048	DSNET Ltd	4,096

BGP prefixes that are contained by 81.90.136.0/23

Range	ASN	Company	Num of IPs
81.90.136.0/24	AS48901	Office	256
81.90.137.0/24	AS48901	Office	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
81.90.136.1	AS48901 DSNET Ltd	`4.47ms` 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
103.115.186.71	AS7018 AT&T Enterprises, LLC	`0.28ms` from Boston, US
81.183.156.55	AS5483 Magyar Telekom Plc.	`6.73ms` from Budapest, HU
156.193.169.167	AS8452 TE-AS	`4.13ms` from Cairo, EG
93.216.2.199	AS3320 Deutsche Telekom AG	`4.50ms` from Hamburg, DE
212.221.134.23	AS207995 Lightning Fibre Ltd	`3.64ms` from London, GB
67.85.170.23	AS6128 Cablevision Systems Corp.	`2.80ms` from New York City, US
24.251.97.23	AS22773 Cox Communications Inc.	`5.50ms` from Phoenix, US
52.32.137.119	AS16509 Amazon.com, Inc.	`4.55ms` from Portland, US
108.172.179.231	AS852 TELUS Communications Inc.	`5.08ms` from Seattle, US
112.162.205.71	AS4766 Korea Telecom	`6.17ms` from Seoul, KR
1.170.114.55	AS3462 Data Communication Business Group	`1.71ms` from Taichung, TW
217.172.115.71	AS58224 Iran Telecommunication Company PJS	`18.38ms` from Yerevan, AM
107.180.230.103	AS26347 New Dream Network, LLC	`0.31ms` from Ashburn, US
75.48.41.151	AS7018 AT&T Enterprises, LLC	`1.41ms` from Atlanta, US
37.59.132.167	AS16276 OVH SAS	`0.08ms` from Gravelines, FR
220.201.145.199	AS4837 CHINA UNICOM China169 Backbone	`9.57ms` from Liaoyang, CN
94.60.223.23	AS12353 Vodafone Portugal	`6.61ms` from Lisbon, PT
2.97.102.39	AS13285 TalkTalk Communications Limited	`6.15ms` from London, GB
23.222.127.103	AS16625 Akamai Technologies, Inc.	`0.27ms` from New York City, US
217.72.12.39	AS212772 AdGuard Software Limited	`0.12ms` from Porto Alegre, BR
222.118.48.87	AS4766 Korea Telecom	`4.48ms` from Seoul, KR
58.110.156.151	AS4804 Microplex PTY LTD	`4.28ms` from Sydney, AU
116.220.10.39	AS9824 JCOM Co., Ltd.	`9.96ms` from Tokyo, JP
58.52.43.167	AS4134 CHINANET-BACKBONE	`8.37ms` from Wuhan, CN
54.71.175.55	AS16509 Amazon.com, Inc.	`0.24ms` from Boardman, 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 81.90.136.1

traceroute to 81.90.136.1 (81.90.136.1): 64 hops max, 52 byte packets

4 [AS20712] 192.150.92.24 0.233 ms

5 [AS20712] 192.150.92.42 0.299 ms

6 [AS48901] 81.90.136.1 6.252 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On September 4th 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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