81.187.128.0/24

AS41489 · Watchfront Limited

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Summary

Country	United Kingdom
Domain	aa.net.uk
ASN	AS41489
Parent Range	81.187.0.0/16
Registry	RIPE
ID	RDT

WHOIS Details

inetnum:        81.187.128.0 - 81.187.128.255
country:        GB
netname:        RDT
descr:          None specified
admin-c:        AAUK
tech-c:         AAUK
mnt-by:         AA
status:         ASSIGNED PA
created:        2006-05-16T16:36:31Z
last-modified:  2012-07-25T15:28:55Z
source:         RIPE
abuse-email:    abuseripe@aa.net.uk
abuse-c:        AAIS1-RIPE
abuse-org:      ORG-AAL2-RIPE

person:         Unspecified contact details
address:        c/o Andrews & Arnold Ltd
address:        BRACKNELL
address:        UNITED KINGDOM
phone:          +445555400000
nic-hdl:        AAUK
remarks:        End user wished to remain anonymous - contact details are for ISP
mnt-by:         AA
created:        2011-11-25T12:57:39Z
last-modified:  2015-05-26T14:36:01Z
source:         RIPE

route:          81.187.128.0/24
descr:          RDT
origin:         AS41489
mnt-by:         AA
created:        2007-08-31T15:16:53Z
last-modified:  2015-05-26T14:36:05Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 81.187.128.0/24

Range	ASN	Company	Num of IPs
81.187.0.0/16	AS20712	Andrews & Arnold Ltd	65,536
81.187.0.0/16	AS41489	Andrews & Arnold Ltd	65,536

Nearby Ranges

BGP prefixes that overlap with 81.187.0.0/16

Range	ASN	Company	Num of IPs
81.187.0.0/16	AS20712	Andrews & Arnold Ltd	65,536
81.187.0.0/16	AS41489	Andrews & Arnold Ltd	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
81.187.128.1	AS41489 Watchfront Limited	`3.35ms` 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
86.95.179.200	AS1136 KPN B.V.	`2.55ms` from Amsterdam, NL
87.196.154.248	AS2860 NOS COMUNICACOES, S.A.	`15.44ms` from Braga, PT
84.195.26.200	AS6848 Telenet BV	`7.94ms` from Brussels, BE
200.81.159.200	AS27851 COOPERATIVA ELECTRICA Y DE SERVICIOS PUBLICOS LUJANENSE LIMITADA	`2.05ms` from Buenos Aires, AR
80.228.89.248	AS9145 EWE TEL GmbH	`2.68ms` from Hamburg, DE
156.230.52.232	AS395793 Arisk Communications inc.	`1.89ms` from Jakarta, ID
223.231.213.8	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`6.84ms` from Kolkata, IN
68.229.15.248	AS22773 Cox Communications Inc.	`9.52ms` from Los Angeles, US
218.64.254.104	AS4134 CHINANET-BACKBONE	`5.03ms` from Nanchang, CN
87.163.87.88	AS3320 Deutsche Telekom AG	`5.25ms` from Nuernberg, DE
83.8.75.104	AS5617 Orange Polska Spolka Akcyjna	`1.94ms` from Poznan, PL
5.165.246.24	AS57378 JSC ER-Telecom Holding	`17.33ms` from Samara, RU
140.178.183.24	AS668 United States Department of Defense (DoD)	`3.78ms` from San Jose, US
112.173.221.24	AS4766 Korea Telecom	`4.67ms` from Seoul, KR
20.104.48.168	AS8075 Microsoft Corporation	`0.18ms` from Toronto, CA
105.105.209.56	AS36947 Telecom Algeria	`11.36ms` from Tunis, TN
182.117.83.248	AS4837 CHINA UNICOM China169 Backbone	`3.41ms` from Zhengzhou, CN
181.14.191.24	AS7303 Telecom Argentina S.A.	`1.57ms` from Buenos Aires, AR
20.54.114.72	AS8075 Microsoft Corporation	`0.19ms` from Dublin, IE
68.40.79.168	AS7922 Comcast Cable Communications, LLC	`7.39ms` from Flint, US
13.226.68.168	AS16509 Amazon.com, Inc.	`0.31ms` from Hong Kong, HK
61.22.158.104	AS9824 JCOM Co., Ltd.	`18.80ms` from Osaka, JP
204.124.171.216	AS53714 London Drugs Limited	`4.48ms` from Seattle, US
125.115.93.72	AS4134 CHINANET-BACKBONE	`9.82ms` from Shanghai, CN
27.84.10.104	AS2516 KDDI CORPORATION	`2.48ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f3 81.187.128.250

traceroute to 81.187.128.250 (81.187.128.250): 64 hops max, 52 byte packets

3 [AS1299] 213.248.88.101 0.567 ms

4 [AS39326] 217.196.232.130 0.561 ms

5 [AS41489] 81.187.105.226 0.668 ms

6 *

7 [AS41489] 81.187.128.250 3.926 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On November 14th 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.

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