157.203.56.0/23

AS21369 · Atos IT Services UK Ltd

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Summary

Country	United Kingdom
Domain	atos.net
ASN	AS21369
Registry	RIPE
ID	UK-ATOSUK-20070407

WHOIS Details

inetnum:        157.203.0.0 - 157.203.255.255
netname:        UK-ATOSUK-20070407
country:        GB
org:            ORG-AISU1-RIPE
admin-c:        ATOS5-RIPE
tech-c:         ATOS5-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SEMA-UK-AS-MNT
mnt-lower:      SEMA-UK-AS-MNT
mnt-routes:     SEMA-UK-AS-MNT
created:        2015-06-19T12:07:34Z
last-modified:  2023-01-04T11:09:51Z
source:         RIPE
abuse-email:    uk.abuse@atos.net
abuse-c:        AA30342-RIPE
abuse-org:      ORG-AISU1-RIPE

organisation:   ORG-AISU1-RIPE
org-name:       Atos IT Services UK Ltd
country:        GB
org-type:       LIR
address:        Second Floor, Mid City Place, 71 High Holborn,
address:        WC1V 6EA
address:        London
address:        UNITED KINGDOM
phone:          +448007833040
fax-no:         +441616018842
e-mail:         uk.abuse@atos.net
reg-nr:         1245534
admin-c:        ATOS5-RIPE
tech-c:         ATOS5-RIPE
abuse-c:        AA30342-RIPE
mnt-by:         SEMA-UK-AS-MNT
mnt-ref:        SEMA-UK-AS-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
created:        2013-05-30T09:12:57Z
last-modified:  2026-04-29T05:34:04Z
source:         RIPE
abuse-email:    uk.abuse@atos.net
abuse-c:        AA30342-RIPE
abuse-org:      undefined

role:           ATOS Admin
address:        3300 Solihull Parkway
address:        Birmingham Business Park
address:        B37 7YQ
e-mail:         UK.Abuse@atos.net
abuse-mailbox:  UK.Abuse@atos.net
nic-hdl:        ATOS5-RIPE
mnt-by:         SEMA-UK-AS-MNT
created:        2013-10-05T00:51:50Z
last-modified:  2013-10-05T03:40:17Z
source:         RIPE

route:          157.203.0.0/16
descr:          ATOS Origin IT
origin:         AS21369
mnt-by:         SEMA-UK-AS-MNT
created:        2005-02-04T15:58:50Z
last-modified:  2005-08-08T07:53:20Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 157.203.0.0/16

No nearby ranges found.

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

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

IP Address	ASN	Details
157.203.56.73	AS21369 Atos IT Services UK Ltd	`9.93ms` from London, GB
157.203.57.52	AS21369 Atos IT Services UK Ltd	`10.78ms` 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
81.240.70.23	AS5432 Proximus NV	`0.97ms` from Brussels, BE
106.70.229.39	AS4804 Microplex PTY LTD	`9.59ms` from Melbourne, AU
184.104.224.247	AS6939 Hurricane Electric LLC	`0.11ms` from Milan, IT
109.194.2.39	AS57044 JSC ER-Telecom Holding	`8.63ms` from Moscow, RU
210.169.117.183	AS2516 KDDI CORPORATION	`2.58ms` from Osaka, JP
15.228.80.151	AS16509 Amazon.com, Inc.	`1.98ms` from Osasco, BR
174.26.6.23	AS209 CenturyLink Communications, LLC	`2.01ms` from Phoenix, US
81.201.54.23	AS8251 FreeTel, s.r.o.	`1.31ms` from Prague, CZ
54.147.68.215	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
42.146.233.103	AS9824 JCOM Co., Ltd.	`16.16ms` from Tokyo, JP
173.34.17.135	AS812 Rogers Communications Canada Inc.	`3.41ms` from Toronto, CA
99.224.143.23	AS812 Rogers Communications Canada Inc.	`3.52ms` from Toronto, CA
107.136.140.231	AS7018 AT&T Enterprises, LLC	`8.60ms` from Atlanta, US
183.196.216.199	AS24547 Hebei Mobile Communication Company Limited	`10.13ms` from Beijing, CN
56.136.15.247	AS8987 Amazon Data Services Ireland Ltd	`0.36ms` from Boardman, US
66.31.129.183	AS7922 Comcast Cable Communications, LLC	`9.63ms` from Boston, US
221.8.8.7	AS4837 CHINA UNICOM China169 Backbone	`0.75ms` from Changchun, CN
69.132.9.119	AS11426 Charter Communications Inc	`4.28ms` from Charlotte, US
74.70.193.167	AS11351 Charter Communications Inc	`16.04ms` from Chicago, US
221.206.218.119	AS4837 CHINA UNICOM China169 Backbone	`5.17ms` from Harbin, CN
62.37.34.151	AS12479 Orange Espagne SA	`0.99ms` from Madrid, ES
49.149.205.151	AS9299 Philippine Long Distance Telephone Company	`16.63ms` from Manila, PH
190.28.136.215	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`19.63ms` from Medellin, CO
92.125.59.103	AS12389 PJSC Rostelecom	`5.20ms` from Novosibirsk, RU
128.22.139.55	AS17511 OPTAGE Inc.	`1.38ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f2 157.203.56.18

traceroute to 157.203.56.18 (157.203.56.18): 64 hops max, 52 byte packets

2 [] 91.200.241.140 0.529 ms

3 [AS1299] 80.239.160.116 0.633 ms

4 [AS1299] 62.115.122.188 0.836 ms

5 [AS1299] 62.115.127.7 2.169 ms

6 [AS1299] 62.115.188.233 1.989 ms

7 *

8 *

9 *

10 *

11 *

12 *

13 *

14 *

15 [AS21369] 157.203.56.18 10.466 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On April 24th 2026

What are IP address ranges?

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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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