161.17.0.0/24

AS15404 · COLT Technology Services Group Limited

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Summary

Country	United Kingdom
Domain	guysandstthomas.nhs.uk
ASN	AS15404
Parent Range	161.17.0.0/16
Registry	RIPE
ID	UK-GUYS-AND-ST-THOMAS-NHS-FOUNDATION-TRUST

WHOIS Details

inetnum:        161.17.0.0 - 161.17.255.255
netname:        UK-GUYS-AND-ST-THOMAS-NHS-FOUNDATION-TRUST
descr:          Guy's and St Thomas' NHS Foundation Trust
descr:          Westminster Bridge Road
descr:          London SE1 7EH
country:        GB
org:            ORG-GAST1-RIPE
admin-c:        AS4093-RIPE
admin-c:        PD8362-RIPE
tech-c:         AS4093-RIPE
tech-c:         PD8362-RIPE
status:         LEGACY
mnt-by:         COLT-UK
mnt-lower:      COLT-UK
mnt-routes:     COLT-UK
created:        2004-01-20T10:47:28Z
last-modified:  2015-11-27T14:40:13Z
source:         RIPE

organisation:   ORG-GAST1-RIPE
org-name:       Guy's and St Thomas' NHS Foundation Trust
org-type:       Other
address:        Westminster Bridge Road, London
e-mail:         [email protected]
mnt-ref:        COLT-UK
mnt-by:         COLT-UK
created:        2015-11-27T12:22:10Z
last-modified:  2015-11-27T12:22:10Z
source:         RIPE

person:         Andrew Stirling
address:        St. Thomas Hospital
address:        Computer Services Department
address:        Lambeth Palace Road
address:        London SE1 7EH
address:        UK
address:        GB
phone:          +44 71 928 9292 2209
nic-hdl:        AS4093-RIPE
mnt-by:         RIPE-ERX-MNT
created:        2004-01-20T09:59:44Z
last-modified:  2004-01-20T09:59:44Z
source:         RIPE

person:         Paul Dimond
address:        Guy's and St Thomas' NHS Foundation Trust
address:        Westminster Bridge Road, London, SE1 7EH
phone:          +44 020 7188 7188
nic-hdl:        PD8362-RIPE
notify:         [email protected]
mnt-by:         COLT-UK
created:        2015-11-27T12:18:40Z
last-modified:  2017-10-30T23:03:27Z
source:         RIPE

route:          161.17.0.0/16
descr:          Route object for
origin:         AS15404
mnt-by:         COLT-UK
created:        2015-12-21T13:22:20Z
last-modified:  2015-12-21T13:22:20Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 161.17.0.0/24

Range	ASN	Company	Num of IPs
161.17.0.0/16	AS15404	Guy's and St Thomas' NHS Foundation Trust	65,536

Nearby Ranges

BGP prefixes that overlap with 161.17.0.0/16

Range	ASN	Company	Num of IPs
161.17.0.0/16	AS15404	Guy's and St Thomas' NHS Foundation Trust	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

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

IP Address	ASN	Details
161.17.0.155	AS15404 COLT Technology Services Group Limited	`1.05ms` 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
82.169.150.216	AS1136 KPN B.V.	`2.67ms` from Amsterdam, NL
20.51.192.104	AS8075 Microsoft Corporation	`0.44ms` from Ashburn, US
82.223.194.8	AS8560 IONOS SE	`0.49ms` from Logrono, ES
95.232.218.232	AS3269 Telecom Italia S.p.A.	`1.30ms` from Milan, IT
185.220.207.40	AS44709 O.M.C. COMPUTERS & COMMUNICATIONS LTD	`0.11ms` from Petaẖ Tiqva, IL
44.207.9.152	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
79.18.180.120	AS3269 Telecom Italia S.p.A.	`4.40ms` from Rome, IT
220.85.30.152	AS4766 Korea Telecom	`1.34ms` from Seoul, KR
61.241.6.24	AS135061 China Unicom Guangdong IP network	`1.39ms` from Shenzhen, CN
16.16.202.168	AS16509 Amazon.com, Inc.	`0.11ms` from Stockholm, SE
126.235.217.184	AS17676 SoftBank Corp.	`2.73ms` from Tokyo, JP
67.193.171.216	AS7992 Cogeco Connexion Inc.	`9.72ms` from Toronto, CA
197.5.143.72	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`0.50ms` from Tunis, TN
178.219.113.152	AS202281 C3 NET Sp. z o.o. Sp. k.	`11.14ms` from Warsaw, PL
80.209.84.104	AS44869 FIBIA P/S	`1.50ms` from Copenhagen, DK
34.254.134.120	AS16509 Amazon.com, Inc.	`0.25ms` from Dublin, IE
41.60.148.8	AS30844 Liquid Telecommunications Ltd	`16.95ms` from Johannesburg, ZA
175.138.35.184	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`5.89ms` from Kuala Lumpur, MY
45.32.172.8	AS20473 The Constant Company, LLC	`0.17ms` from Miami, US
47.192.15.8	AS5650 Frontier Communications of America, Inc.	`14.17ms` from Miami, US
187.150.180.40	AS8151 UNINET	`12.41ms` from Miami, US
46.61.24.136	AS12389 PJSC Rostelecom	`17.06ms` from Moscow, RU
173.34.36.104	AS812 Rogers Communications Canada Inc.	`17.32ms` from Ottawa, CA
101.18.29.24	AS4837 CHINA UNICOM China169 Backbone	`12.17ms` from Beijing, CN
181.32.88.136	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`8.38ms` from Bogota, CO

Traceroute

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

traceroute -a -n -q1 -f3 161.17.0.252

traceroute to 161.17.0.252 (161.17.0.252): 64 hops max, 52 byte packets

3 [AS36236] 185.40.232.33 0.277 ms

4 *

5 [] 212.74.86.54 0.993 ms

6 [AS15404] 161.17.0.252 2.346 ms

Measurement taken from

IPinfo ProbeNet in London, GB

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.

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