155.136.0.0/16

AS21054 · Natwest Markets PLC

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Summary

Country	United Kingdom
Domain	rbs.co.uk
ASN	AS21054
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

Nearby Ranges

BGP prefixes that overlap with 155.0.0.0/8

Range	ASN	Company	Num of IPs
155.153.0.0/16	AS367	Headquarters, USAISC	65,536
155.215.0.0/16	AS367	Headquarters, USAISC	65,536
155.151.0.0/16	AS367	Headquarters, USAISC	65,536
155.65.0.0/16	AS36291	Sanofi	65,536
155.150.0.0/16	AS367	Headquarters, USAISC	65,536
155.149.0.0/16	AS367	Headquarters, USAISC	65,536
155.47.0.0/16	AS32125	Wheaton College	65,536
155.147.0.0/16	AS367	Headquarters, USAISC	65,536
155.229.0.0/16	AS3257	GTT Americas, LLC	65,536
155.227.0.0/16	AS2119	Nortura SA	65,536
155.201.0.0/16	AS20426	PriceWaterhouseCoopers, LLP	65,536
155.163.0.0/16	AS20057	AT&T Enterprises, LLC	65,536
155.170.0.0/16	AS20057	AT&T Enterprises, LLC	65,536
155.240.0.0/16	AS2018	Agricultural Research Council	65,536
155.228.0.0/16	AS25021	Etat de Fribourg	65,536
155.188.0.0/16	AS20437	Nationwide Mutual Insurance Company	65,536
155.130.0.0/16	AS22911	SWITCH, LTD	65,536
155.193.0.0/16	AS16509	Amazon.com, Inc.	65,536
155.134.0.0/16	AS16509	Amazon.com, Inc.	65,536
155.38.0.0/16	AS16509	Amazon Technologies Inc.	65,536
155.209.0.0/16	AS2119	AKER SOLUTIONS AS	65,536
155.33.0.0/16	AS156	Northeastern University	65,536
155.53.0.0/16	AS158	Munin Systems Inc.	65,536
155.104.0.0/16	AS1906	Northrop Grumman Corp.	65,536
155.144.0.0/16	AS17756	Australian Postal Corporation	65,536
155.92.0.0/16	AS11500	Milwaukee School of Engineering	65,536
155.166.0.0/16	AS20057	AT&T Enterprises, LLC	65,536
155.232.0.0/16	AS2018	TENET (The UNINET Project)	65,536
155.238.0.0/16	AS2018	Cape Technikon	65,536
155.60.0.0/16	AS10235	NATIONAL AUSTRALIA BANK LIMITED	65,536
155.253.0.0/16	AS137	Area della Ricerca di Milano	65,536
155.6.0.0/16	AS1637	Headquarters, USAISC	65,536
155.187.0.0/16	AS140637	Department of Climate Change Energy the Environment and Water	65,536
155.31.0.0/16	AS11809	Embry-Riddle Aeronautical University	65,536
155.5.0.0/16	AS1637	Headquarters, USAISC	65,536
155.155.0.0/16	AS1585	Headquarters, USAISC	65,536
155.135.0.0/16	AS2152	California State University, Dominguez Hills	65,536
155.143.0.0/16	AS135887	Telstra Limited	65,536
155.155.0.0/16	AS1556	Headquarters, USAISC	65,536
155.230.0.0/16	AS10052	Kyungpook National University	65,536
155.155.0.0/16	AS1554	Headquarters, USAISC	65,536
155.250.0.0/16	AS13167	Merck KGaA	65,536
155.197.0.0/16	AS16509	Amazon.com, Inc.	65,536
155.40.0.0/16	AS16509	Amazon.com, Inc.	65,536
155.151.0.0/16	AS1540	Headquarters, USAISC	65,536
155.109.0.0/16	AS10273	Florida Power & Light Company	65,536
155.24.0.0/16	AS1556	Headquarters, USAISC	65,536
155.185.0.0/16	AS137	Universita' degli Studi di Modena e Reggio Emilia	65,536
155.216.0.0/16	AS367	Headquarters, USAISC	65,536

Hosted domains

There are 56 domain names hosted across 24 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
155.136.80.236	streamlinedirect.co.uk	17
155.136.22.27	rbsdigital.com	2
155.136.72.43	tescoonline.co.uk	1
155.136.80.213	natwestnow.com	1
155.136.22.57	ulsterbankanytimebanking.ie	1
155.136.72.98	rbsgroupmortgageintermediaries-gmctest.co.uk	1
155.136.22.40	ulsterbankanytimebanking.co.uk	1
155.136.22.4	nwolb.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

Read more

Pingable IPs

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

IP Address	ASN	Details
155.136.153.68	AS21054 Natwest Markets PLC	`12.97ms` from London, GB
155.136.60.37	AS21054 Natwest Markets PLC	`10.73ms` from Erith, GB
155.136.58.8	AS21301 Natwest Markets PLC	`12.62ms` from London, GB
155.136.201.142	AS21301 Natwest Markets PLC	`12.71ms` from London, GB
155.136.225.130	AS61231 Neos Networks Limited	`13.57ms` from London, GB
155.136.203.225	AS21054 Natwest Markets PLC	`10.37ms` from Erith, GB
155.136.56.40	AS21301 Natwest Markets PLC	`12.86ms` from London, GB
155.136.202.25	AS21054 Natwest Markets PLC	`10.34ms` from Erith, GB
155.136.224.1	AS61231 Neos Networks Limited	`13.65ms` from London, GB
155.136.200.65	AS21301 Natwest Markets PLC	`13.03ms` from London, GB
155.136.152.14	AS21054 Natwest Markets PLC	`13.34ms` from London, GB
155.136.23.243	AS21054 Natwest Markets PLC	`13.51ms` from London, GB
155.136.62.8	AS21054 Natwest Markets PLC	`10.69ms` from London, GB
155.136.197.71	AS21054 Natwest Markets PLC	`10.77ms` from London, GB
155.136.151.71	AS21301 Natwest Markets PLC	`13.13ms` from London, GB
155.136.17.40	AS21054 Natwest Markets PLC	`13.68ms` from London, GB
155.136.154.154	AS21054 Natwest Markets PLC	`13.02ms` from London, GB
155.136.22.132	AS21054 Natwest Markets PLC	`13.18ms` 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
20.86.160.16	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL
69.143.163.112	AS7922 Comcast Cable Communications, LLC	`6.57ms` from Ashburn, US
91.33.203.80	AS3320 Deutsche Telekom AG	`4.79ms` from Duesseldorf, DE
84.177.177.64	AS3320 Deutsche Telekom AG	`8.54ms` from Frankfurt am Main, DE
124.225.121.32	AS4134 CHINANET-BACKBONE	`0.59ms` from Haikou, CN
65.35.150.192	AS33363 Charter Communications, Inc	`9.29ms` from Miami, US
76.70.60.96	AS577 Bell Canada	`4.22ms` from Montreal, CA
13.126.195.128	AS16509 Amazon.com, Inc.	`0.13ms` from Mumbai, IN
174.44.125.224	AS6128 Cablevision Systems Corp.	`8.86ms` from New York City, US
133.206.4.224	AS2518 BIGLOBE Inc.	`2.25ms` from Osaka, JP
112.181.160.224	AS4766 Korea Telecom	`2.07ms` from Seoul, KR
111.235.76.0	AS139076 EnjoyVC Japan Corporation	`0.90ms` from Tokyo, JP
113.133.155.16	AS4134 CHINANET-BACKBONE	`5.45ms` from Xi'an, CN
195.189.109.64	AS41082 Company Uraltranskom Ltd.	`0.53ms` from Yekaterinburg, RU
185.163.94.0	AS15600 Quickline AG	`11.77ms` from Zuerich, CH
40.113.145.64	AS8075 Microsoft Corporation	`0.24ms` from Amsterdam, NL
64.40.70.208	AS19901 Brightspeed	`8.20ms` from Ashburn, US
207.49.103.48	AS19901 Brightspeed	`6.68ms` from Ashburn, US
99.57.83.208	AS7018 AT&T Enterprises, LLC	`16.65ms` from Atlanta, US
1.63.60.48	AS4837 CHINA UNICOM China169 Backbone	`14.47ms` from Changchun, CN
116.199.10.112	AS17622 China Unicom Guangzhou network	`2.64ms` from Guangzhou, CN
42.63.193.144	AS4837 CHINA UNICOM China169 Backbone	`12.73ms` from Hohhot, CN
120.224.21.32	AS24444 Shandong Mobile Communication Company Limited	`3.06ms` from Jinan, CN
116.177.251.208	AS4837 CHINA UNICOM China169 Backbone	`5.15ms` from Lanzhou, CN
89.142.11.240	AS5603 Telekom Slovenije, d.d.	`1.28ms` from Ljubljana, SI

Traceroute

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

traceroute -a -n -q1 -m4 155.136.96.222

traceroute to 155.136.96.222 (155.136.96.222): 4 hops max, 52 byte packets

1 [AS149573] 151.243.98.1 308.612 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Hyderabad, IN

On December 6th 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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