81.87.0.0/16

AS786 · Jisc Services Limited

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	United Kingdom
Domain	jisc.ac.uk
ASN	AS786
Registry	RIPE
ID	UK-JANET-20020617

WHOIS Details

inetnum:        81.87.0.0 - 81.87.255.255
netname:        UK-JANET-20020617
country:        GB
org:            ORG-UA23-RIPE
admin-c:        JN359-RIPE
tech-c:         JN359-RIPE
status:         ALLOCATED PA
notify:         [email protected]
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         JANET-HOSTMASTER
mnt-lower:      JIPS-NOSC
mnt-lower:      JANET-HOSTMASTER
mnt-routes:     JIPS-NOSC
mnt-irt:        IRT-JANET_CSIRT
created:        2002-06-25T13:20:50Z
last-modified:  2020-02-11T13:48:09Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        JCA95-RIPE
abuse-org:      ORG-UA23-RIPE

organisation:   ORG-UA23-RIPE
org-name:       Jisc Services Limited
country:        GB
org-type:       LIR
address:        Janet NOC, 15 Fetter Lane, Third floor
address:        EC4A 1BW
address:        London
address:        UNITED KINGDOM
phone:          +44 1235 822 212
fax-no:         +44 1235 822 397
e-mail:         [email protected]
admin-c:        SHAW1-RIPE
admin-c:        RHE1-RIPE
admin-c:        NA1000-RIPE
abuse-c:        JCA95-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        JANET-HOSTMASTER
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         JANET-HOSTMASTER
created:        2004-04-17T12:17:01Z
last-modified:  2025-08-04T10:13:15Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        JCA95-RIPE
abuse-org:      undefined

role:           JANET NOSC
address:        JANET(UK) Network Operations Centre
address:        Third floor
address:        15 Fetter Lane
address:        London
address:        EC4A1BW
address:        United Kingdom
phone:          +44 (0)1235 822 212
e-mail:         [email protected]
remarks:        trouble: For operational queries please
remarks:        trouble: contact [email protected] or
remarks:        trouble: phone +44 (0)1235 822 212
remarks:        trouble: Mon-Fri, 07:00 - 23:59 UK local
remarks:        trouble: or +44 (0) 300 300 3312 all other
remarks:        trouble: times.
admin-c:        RHE1-RIPE
admin-c:        SHAW1-RIPE
tech-c:         RHE1-RIPE
tech-c:         SHAW1-RIPE
nic-hdl:        JN359-RIPE
notify:         [email protected]
mnt-by:         JIPS-NOSC
created:        1970-01-01T00:00:00Z
last-modified:  2025-08-04T10:12:34Z
source:         RIPE

route:          81.87.0.0/16
descr:          JANET
descr:          JANET(UK) Network Operations Centre
descr:          Third floor
descr:          15 Fetter Lane
descr:          London EC4A 1BW
descr:          United Kingdom
origin:         AS786
notify:         [email protected]
mnt-by:         JIPS-NOSC
created:        2002-06-17T16:59:23Z
last-modified:  2019-06-11T12:44:58Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 81.0.0.0/8

Range	ASN	Company	Num of IPs
81.128.0.0/11	AS2856	British Telecommunications PLC	2,097,152
81.128.0.0/12	AS2856	BT Infrastructure Layer	1,048,576
81.96.0.0/12	AS5089	Virgin Media Limited	1,048,576
81.64.0.0/14	AS15557	Societe Francaise Du Radiotelephone - SFR SA	262,144
81.204.0.0/14	AS1136	KPN B.V.	262,144
81.212.0.0/14	AS9121	Turk Telekomunikasyon Anonim Sirketi	262,144
81.76.0.0/14	AS5378	Vodafone Limited	262,144
81.68.0.0/14	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	262,144
81.56.0.0/15	AS29447	Free SAS	131,072
81.62.0.0/15	AS3303	Swisscom (Schweiz) AG	131,072
81.182.0.0/15	AS5483	Magyar Telekom Plc.	131,072
81.178.0.0/15	AS13285	TalkTalk Communications Limited	131,072
81.166.0.0/15	AS29695	Lyse Tele AS	131,072
81.82.0.0/15	AS6848	Telenet BV	131,072
81.164.0.0/15	AS6848	Telenet BV	131,072
81.60.0.0/15	AS12430	VODAFONE ONO, S.A.	131,072
81.187.0.0/16	AS41489	Andrews & Arnold Ltd	65,536
81.191.0.0/16	AS2116	GLOBALCONNECT AS	65,536
81.185.0.0/16	AS15557	Societe Francaise Du Radiotelephone - SFR SA	65,536
81.40.0.0/16	AS3352	Telefonica de Espana SAU	65,536
81.36.0.0/16	AS3352	Telefonica de Espana SAU	65,536
81.38.0.0/16	AS3352	Telefonica de Espana SAU	65,536
81.32.0.0/16	AS3352	Telefonica de Espana SAU	65,536
81.33.0.0/16	AS3352	Telefonica de Espana SAU	65,536
81.196.0.0/16	AS8708	DIGI ROMANIA S.A.	65,536
81.37.0.0/16	AS3352	Telefonica de Espana SAU	65,536
81.198.0.0/16	AS12578	SIA Tet	65,536
81.44.0.0/16	AS3352	Telefonica de Espana SAU	65,536
81.219.0.0/16	AS12741	Netia SA	65,536
81.39.0.0/16	AS3352	Telefonica de Espana SAU	65,536
81.34.0.0/16	AS3352	Telefonica de Espana SAU	65,536
81.195.0.0/16	AS8359	MTS PJSC	65,536
81.221.0.0/16	AS1836	green.ch AG	65,536
81.220.0.0/16	AS15557	Societe Francaise Du Radiotelephone - SFR SA	65,536
81.61.0.0/16	AS6739	ONO_HFC	65,536
81.184.0.0/16	AS6739	VODAFONE ONO, S.A.	65,536
81.202.0.0/16	AS6739	VODAFONE ONO, S.A.	65,536
81.86.0.0/16	AS13285	TalkTalk Communications Limited	65,536
81.187.0.0/16	AS20712	Andrews & Arnold Ltd	65,536
81.216.0.0/16	AS1257	Tele2 Sverige AB	65,536
81.81.0.0/16	AS1267	WIND TRE S.P.A.	65,536
81.35.0.0/16	AS3352	Telefonica de Espana SAU	65,536
81.57.0.0/16	AS29447	Iliad / Free SAS	65,536
81.189.0.0/16	AS8437	Network of Hutchison Drei Austria GmbH	65,536
81.192.0.0/16	AS6713	Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	65,536
81.198.0.0/16	AS24921	SIA Tet	65,536
81.56.0.0/16	AS29447	Iliad / Free SAS	65,536
81.194.0.0/16	AS2200	Renater	65,536
81.197.0.0/16	AS719	Elisa Oyj	65,536

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
81.87.34.50	ruhere.co.uk	1
81.87.18.124	ayresome.net	1

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

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

IP Address	ASN	Details
81.87.19.97	AS786 Jisc Services Limited	`4.67ms` from London, GB
81.87.21.65	AS786 Jisc Services Limited	`4.99ms` from London, GB
81.87.22.105	AS786 Jisc Services Limited	`4.84ms` from London, GB
81.87.20.41	AS786 Jisc Services Limited	`4.13ms` from London, GB
81.87.23.65	AS786 Jisc Services Limited	`4.38ms` from London, GB
81.87.18.105	AS786 Jisc Services Limited	`4.62ms` 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
24.34.252.224	AS7922 Comcast Cable Communications, LLC	`4.34ms` from Boston, US
24.14.216.160	AS7922 Comcast Cable Communications, LLC	`5.82ms` from Chicago, US
52.58.77.112	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
75.8.119.192	AS7018 AT&T Enterprises, LLC	`1.48ms` from Houston, US
41.18.236.224	AS29975 Vodacom	`12.28ms` from Johannesburg, ZA
194.183.168.144	AS12963 "SCIENTIFIC-INDUSTRIAL FIRM "VOLZ" LIMITED LIABILITY COMPANY	`0.82ms` from Kyiv, UA
81.154.230.224	AS2856 British Telecommunications PLC	`3.64ms` from London, GB
86.8.5.0	AS5089 Virgin Media Limited	`6.37ms` from London, GB
2.155.131.96	AS12430 VODAFONE ESPANA S.A.U.	`6.85ms` from Madrid, ES
123.97.6.48	AS4134 CHINANET-BACKBONE	`5.67ms` from Ningbo, CN
114.145.3.32	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.08ms` from Osaka, JP
52.87.114.96	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
98.237.105.64	AS7922 Comcast Cable Communications, LLC	`17.75ms` from Reston, US
104.42.51.112	AS8075 Microsoft Corporation	`0.61ms` from San Jose, US
73.48.170.128	AS7922 Comcast Cable Communications, LLC	`10.80ms` from Santa Clara, US
189.47.164.144	AS27699 TELEFÔNICA BRASIL S.A	`1.47ms` from Sao Paulo, BR
175.232.74.48	AS4766 Korea Telecom	`1.75ms` from Seoul, KR
179.104.190.96	AS53006 ALGAR TELECOM S/A	`2.82ms` from Uberlandia, BR
85.193.251.80	AS34337 ELECTRONIC MECHANICAL COMPANY ELPOS SP Z O O	`9.01ms` from Warsaw, PL
88.135.171.0	AS50188 KOLNET Sp. z o.o.	`6.30ms` from Warsaw, PL
108.159.103.224	AS16509 Amazon.com, Inc.	`0.16ms` from Cairo, EG
69.216.244.0	AS7018 AT&T Enterprises, LLC	`1.21ms` from Chicago, US
87.173.119.160	AS3320 Deutsche Telekom AG	`7.22ms` from Frankfurt am Main, DE
98.198.167.96	AS7922 Comcast Cable Communications, LLC	`7.13ms` from Houston, US
178.242.124.240	AS16135 Turkcell A.S.	`17.71ms` from Istanbul, TR

Traceroute

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

traceroute -a -n -q1 -m8 81.87.48.200

traceroute to 81.87.48.200 (81.87.48.200): 8 hops max, 52 byte packets

1 [AS200651] 37.228.129.3 0.137 ms

2 *

3 [AS12552] 146.247.200.153 47.57 ms

4 [] 195.66.224.15 47.042 ms

5 [AS786] 146.97.35.169 108.249 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Helsinki, FI

On January 30th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales