155.136.202.0/23

AS21301 · Natwest Markets PLC

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Summary

Country	United Kingdom
Domain	rbs.co.uk
ASN	AS21301
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 155.136.202.0/23

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 4 domain names hosted across 3 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

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

IP Address	ASN	Details
155.136.202.80	AS21054 Natwest Markets PLC	`10.33ms` from London, GB
155.136.203.139	AS21054 Natwest Markets PLC	`10.33ms` 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
181.6.53.231	AS7303 Telecom Argentina S.A.	`12.57ms` from Buenos Aires, AR
174.109.16.7	AS11426 Charter Communications Inc	`7.32ms` from Charlotte, US
3.255.155.103	AS16509 Amazon.com, Inc.	`0.45ms` from Dublin, IE
222.161.155.183	AS4837 CHINA UNICOM China169 Backbone	`13.92ms` from Liaoyang, CN
199.232.206.39	AS54113 Fastly, Inc.	`0.08ms` from Milan, IT
218.251.80.7	AS17511 OPTAGE Inc.	`1.31ms` from Osaka, JP
193.168.157.183	AS211309 Obos Nett AS	`2.08ms` from Oslo, NO
88.178.166.199	AS12322 Free SAS	`7.66ms` from Paris, FR
104.2.45.55	AS7018 AT&T Enterprises, LLC	`9.52ms` from Redding, US
107.21.57.151	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
95.78.61.167	AS42116 JSC "ER-Telecom Holding"	`11.67ms` from Samara, RU
50.98.155.103	AS852 TELUS Communications Inc.	`4.28ms` from Seattle, US
112.185.42.7	AS4766 Korea Telecom	`6.16ms` from Seoul, KR
61.77.182.71	AS4766 Korea Telecom	`1.58ms` from Seoul, KR
181.122.123.135	AS23201 Telecel S.A.	`11.99ms` from Asuncion, PY
95.157.32.247	AS35244 Tele Columbus AG	`8.63ms` from Berlin, DE
181.5.231.199	AS7303 Telecom Argentina S.A.	`13.72ms` from Buenos Aires, AR
75.210.192.199	AS6167 Verizon Business	`14.06ms` from Chicago, US
186.108.207.55	AS7303 Telecom Argentina S.A.	`5.87ms` from Cordoba, AR
84.118.92.167	AS3209 Vodafone GmbH	`7.38ms` from Duesseldorf, DE
37.106.153.135	AS25019 Saudi Telecom Company JSC	`2.96ms` from Jeddah, SA
95.168.185.183	AS205544 Leaseweb UK Limited	`0.47ms` from London, GB
90.73.232.151	AS3215 Orange S.A.	`19.20ms` from Paris, FR
201.152.43.215	AS8151 UNINET	`18.58ms` from Santiago de Queretaro, MX
179.208.38.231	AS28573 Claro NXT Telecomunicacoes Ltda	`4.68ms` from Sao Paulo, BR

Traceroute

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

traceroute -a -n -q1 -f3 -m8 155.136.203.68

traceroute to 155.136.203.68 (155.136.203.68): 8 hops max, 52 byte packets

3 [AS1299] 195.12.254.167 0.731 ms

4 [AS32787] 104.86.67.185 0.605 ms

5 [AS32787] 209.200.182.36 16.124 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in London, GB

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.

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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