155.136.203.0/24

AS21054 · Natwest Markets PLC

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Summary

Country	United Kingdom
Domain	rbs.co.uk
ASN	AS21054
Parent Range	155.136.0.0/16
Registry	RIPE
ID	ROY-SCOT-NET

WHOIS Details

inetnum:        155.136.0.0 - 155.136.255.255
netname:        ROY-SCOT-NET
descr:          Royal Bank of Scotland
country:        GB
admin-c:        CL5041-RIPE
tech-c:         Rd5168-RIPE
status:         LEGACY
mnt-by:         RBSG-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2019-12-04T13:11:18Z
source:         RIPE

person:         Sean Jarvis
address:        42 Islington High Street
address:        London
address:        N1 8XL
phone:          +44 20 7063 1687
e-mail:         [email protected]
nic-hdl:        CL5041-RIPE
mnt-by:         RBSG-MNT
created:        2012-08-13T13:30:01Z
last-modified:  2016-09-19T12:39:19Z
source:         RIPE

person:         RBS dnsmaster
address:        42 Islington High Street
address:        London
address:        N1 8XL
phone:          +44 20 7615 9759
e-mail:         [email protected]
nic-hdl:        Rd5168-RIPE
mnt-by:         RBSG-MNT
created:        2012-08-13T13:33:33Z
last-modified:  2018-05-18T13:05:01Z
source:         RIPE

route:          155.136.0.0/16
descr:          Royal Bank of Scotland
origin:         AS21054
mnt-by:         RBSG-MNT
mnt-routes:     AS5564-MNT
mnt-routes:     RBSG-MNT
mnt-routes:     MNT-PROLE
created:        2009-04-07T12:30:12Z
last-modified:  2016-09-19T12:56:41Z
source:         RIPE

route:          155.136.0.0/16
descr:          Royal Bank of Scotland
origin:         AS32787
mnt-by:         MNT-PROLE
mnt-by:         RBSG-MNT
notify:         [email protected]
created:        2009-06-30T15:10:46Z
last-modified:  2011-03-25T10:05:43Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 155.136.203.0/24

Range	ASN	Company	Num of IPs
155.136.0.0/16	AS21054	Royal Bank of Scotland	65,536
155.136.0.0/16	AS21301	Royal Bank of Scotland	65,536
155.136.0.0/16	AS61231	Royal Bank of Scotland	65,536

Nearby Ranges

BGP prefixes that overlap with 155.136.0.0/16

Range	ASN	Company	Num of IPs
155.136.0.0/16	AS21054	Royal Bank of Scotland	65,536
155.136.0.0/16	AS21301	Royal Bank of Scotland	65,536
155.136.0.0/16	AS61231	Royal Bank of Scotland	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
155.136.203.198	AS21054 Natwest Markets PLC	`10.41ms` from Erith, 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
101.75.36.136	AS4837 CHINA UNICOM China169 Backbone	`9.01ms` from Beijing, CN
223.190.204.136	AS24560 Bharti Airtel Ltd., Telemedia Services	`14.55ms` from Chennai, IN
109.230.209.40	AS25369 Hydra Communications Ltd	`0.52ms` from London, GB
86.172.119.136	AS2856 British Telecommunications PLC	`5.83ms` from London, GB
80.40.18.40	AS13285 TalkTalk Communications Limited	`5.60ms` from Manchester, GB
94.89.48.72	AS3269 Telecom Italia S.p.A.	`3.09ms` from Milan, IT
87.156.124.216	AS3320 Deutsche Telekom AG	`4.47ms` from Nuernberg, DE
79.198.106.40	AS3320 Deutsche Telekom AG	`4.68ms` from Nuernberg, DE
13.36.157.72	AS16509 Amazon.com, Inc.	`0.17ms` from Paris, FR
198.57.230.168	AS46606 Unified Layer	`2.14ms` from Salt Lake City, US
179.52.171.56	AS6400 Compañía Dominicana de Teléfonos S. A.	`2.44ms` from Santo Domingo, DO
112.167.2.152	AS4766 Korea Telecom	`3.84ms` from Seoul, KR
188.169.4.152	AS35805 JSC "Silknet"	`2.15ms` from Tbilisi, GE
24.218.91.40	AS7922 Comcast Cable Communications, LLC	`6.71ms` from Boston, US
190.50.21.152	AS22927 Telefonica de Argentina	`10.08ms` from Buenos Aires, AR
182.229.243.104	AS17858 LG POWERCOMM	`1.55ms` from Seoul, KR
170.64.204.120	AS14061 DigitalOcean, LLC	`0.26ms` from Sydney, AU
188.253.24.8	AS42532 SIA VEESP	`0.42ms` from Amsterdam, NL
40.88.29.136	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
223.19.191.120	AS9304 HGC Global Communications Limited	`1.45ms` from Hong Kong, HK
90.198.147.168	AS5607 Sky UK Limited	`5.84ms` from London, GB
67.21.170.120	AS13649 Flexential Colorado Corp.	`7.75ms` from Los Angeles, US
2.3.165.88	AS3215 Orange S.A.	`11.02ms` from Marseille, FR
15.236.33.184	AS16509 Amazon.com, Inc.	`0.15ms` from Paris, FR
187.228.163.40	AS8151 UNINET	`5.18ms` from Santiago de Queretaro, MX

Traceroute

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

traceroute -a -n -q1 -f2 155.136.203.138

traceroute to 155.136.203.138 (155.136.203.138): 64 hops max, 52 byte packets

2 [] 5.57.81.220 1.815 ms

3 [AS32787] 104.86.67.105 1.561 ms

4 [AS32787] 72.52.21.208 11.153 ms

5 *

6 *

7 *

8 [AS21054] 155.136.203.138 11.738 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On December 15th 2025

What are IP address ranges?

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