155.136.128.0/17

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 155.136.128.0/17

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 5 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
155.136.202.25	bankofapis.com	1

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

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

IP Address	ASN	Details
155.136.203.161	AS21054 Natwest Markets PLC	`10.69ms` from London, GB
155.136.153.68	AS21054 Natwest Markets PLC	`13.02ms` from London, GB
155.136.202.13	AS21054 Natwest Markets PLC	`10.64ms` from London, GB
155.136.151.69	AS21301 Natwest Markets PLC	`12.60ms` from London, GB
155.136.152.16	AS21054 Natwest Markets PLC	`13.47ms` from London, GB
155.136.224.56	AS61231 Neos Networks Limited	`13.60ms` from London, GB
155.136.197.66	AS21054 Natwest Markets PLC	`10.87ms` from London, GB
155.136.200.10	AS21301 Natwest Markets PLC	`12.52ms` from London, GB
155.136.201.216	AS21301 Natwest Markets PLC	`12.69ms` from London, GB
155.136.225.207	AS61231 Neos Networks Limited	`13.52ms` from London, GB
155.136.154.42	AS21054 Natwest Markets PLC	`13.04ms` 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
181.126.236.113	AS23201 Telecel S.A.	`7.63ms` from Asuncion, PY
24.178.178.1	AS20115 Charter Communications LLC	`8.11ms` from Atlanta, US
68.98.199.1	AS22773 Cox Communications Inc.	`3.46ms` from Atlanta, US
96.230.149.1	AS701 Verizon Business	`1.93ms` from Boston, US
189.3.92.177	AS4230 CLARO S.A.	`3.19ms` from Brasilia, BR
2.58.111.225	AS39686 Eurofiber Nederland BV	`3.32ms` from Brussels, BE
89.37.184.1	AS58078 Mairon Galati SA	`4.79ms` from Bucharest, RO
92.82.181.1	AS8953 Orange Romania S.A.	`0.53ms` from Bucharest, RO
190.192.118.1	AS7303 Telecom Argentina S.A.	`1.20ms` from Buenos Aires, AR
196.215.76.129	AS3741 Dimension Data	`2.75ms` from Cape Town, ZA
64.201.76.145	AS26449 Geneva On-Line, Inc.	`3.37ms` from Chicago, US
173.27.220.1	AS30036 Mediacom Communications Corp	`7.37ms` from Chicago, US
107.0.242.97	AS7922 Comcast Cable Communications, LLC	`2.53ms` from Chicago, US
219.153.65.209	AS134420 Chongqing Telecom	`1.11ms` from Chongqing, CN
62.199.59.1	AS3308 Telia Company AB	`1.02ms` from Copenhagen, DK
181.167.92.1	AS7303 Telecom Argentina S.A.	`1.13ms` from Cordoba, AR
35.222.88.81	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
34.170.225.97	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
65.205.79.17	AS701 Verizon Business	`3.21ms` from Dallas, US
204.134.157.81	AS209 CenturyLink Communications, LLC	`0.35ms` from Denver, US
67.190.34.145	AS7922 Comcast Cable Communications, LLC	`5.59ms` from Denver, US
187.64.119.1	AS28573 Claro NXT Telecomunicacoes Ltda	`9.22ms` from Fortaleza, BR
63.155.5.193	AS209 CenturyLink Communications, LLC	`18.23ms` from Hillsboro, US
113.173.4.1	AS45899 VNPT Corp	`1.30ms` from Ho Chi Minh City, VN
95.10.130.1	AS47331 TTNet A.S.	`6.88ms` from Istanbul, TR

Traceroute

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

traceroute -a -n -q1 -f4 -m8 155.136.252.205

traceroute to 155.136.252.205 (155.136.252.205): 8 hops max, 52 byte packets

4 [AS32787] 23.32.69.83 1.121 ms

5 [AS32787] 72.52.20.72 118.159 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Dallas, US

On November 22nd 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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