155.136.200.0/23

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:         sean.jarvis@rbs.com
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:         domains@rbs.co.uk
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:         hostmaster@prolexic.com
created:        2009-06-30T15:10:46Z
last-modified:  2011-03-25T10:05:43Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 155.136.200.0/23

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 5 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

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Pingable IPs

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

IP Address	ASN	Details
155.136.201.250	AS21301 Natwest Markets PLC	`12.64ms` from London, GB
155.136.200.13	AS21301 Natwest Markets PLC	`12.60ms` 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
85.72.2.135	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`0.67ms` from Athens, GR
34.76.25.119	AS396982 Google LLC	`0.13ms` from Brussels, BE
171.49.185.39	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.45ms` from Delhi, IN
129.56.6.183	AS327952 NATCOM Development and Investment Limited	`0.34ms` from Frankfurt am Main, DE
39.137.127.231	AS9808 China Mobile Communications Group Co., Ltd.	`2.53ms` from Guiyang, CN
217.233.182.247	AS3320 Deutsche Telekom AG	`1.70ms` from Hamburg, DE
59.148.185.167	AS9269 Hong Kong Broadband Network Ltd.	`0.50ms` from Hong Kong, HK
71.197.76.215	AS7922 Comcast Cable Communications, LLC	`10.66ms` from Los Angeles, US
205.215.246.103	AS32829 Port Networks, Inc.	`8.90ms` from New Orleans, US
179.228.151.71	AS26599 TELEFÔNICA BRASIL S.A	`7.36ms` from Sao Paulo, BR
73.59.35.247	AS7922 Comcast Cable Communications, LLC	`4.04ms` from Seattle, US
1.192.9.167	AS4134 CHINANET-BACKBONE	`11.80ms` from Taiyuan, CN
213.90.67.199	AS8437 Hutchison Drei Austria GmbH	`1.98ms` from Vienna, AT
45.30.163.71	AS7018 AT&T Enterprises, LLC	`9.87ms` from Atlanta, US
16.162.1.55	AS16509 Amazon.com, Inc.	`0.15ms` from Hong Kong, HK
95.255.60.39	AS3269 Telecom Italia S.p.A.	`5.58ms` from Milan, IT
54.148.170.87	AS16509 Amazon.com, Inc.	`4.57ms` from Portland, US
47.103.247.7	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.76ms` from Shanghai, CN
85.250.176.183	AS1680 Cellcom Fixed Line Communication L.P	`3.00ms` from Tel Aviv, IL
87.166.22.199	AS3320 Deutsche Telekom AG	`4.17ms` from Frankfurt am Main, DE
1.31.14.183	AS4837 CHINA UNICOM China169 Backbone	`8.11ms` from Hohhot, CN
146.201.102.215	AS2553 Florida State University	`10.44ms` from Jacksonville, US
174.49.22.119	AS7922 Comcast Cable Communications, LLC	`6.09ms` from Murfreesboro, US
126.82.232.39	AS17676 SoftBank Corp.	`7.76ms` from Osaka, JP
54.71.233.231	AS16509 Amazon.com, Inc.	`4.55ms` from Portland, US

Traceroute

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

traceroute -a -n -q1 -f2 -m10 155.136.201.226

traceroute to 155.136.201.226 (155.136.201.226): 10 hops max, 52 byte packets

2 [AS35847] 216.227.254.249 1.353 ms

3 *

4 *

5 *

6 [AS32787] 23.32.69.97 8.699 ms

7 [AS32787] 209.200.159.116 121.145 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Houston, US

On September 4th 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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