155.136.146.0/24

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 155.136.146.0/24

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

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
181.123.241.56	AS23201 Telecel S.A.	`9.72ms` from Asuncion, PY
209.237.150.200	AS19871 Network Solutions, LLC	`0.60ms` from Atlanta, US
213.160.23.120	AS20676 Plusnet GmbH	`1.62ms` from Berlin, DE
184.185.104.248	AS22773 Cox Communications Inc.	`2.48ms` from Boston, US
156.192.235.8	AS8452 TE-AS	`7.43ms` from Cairo, EG
3.133.198.152	AS16509 Amazon.com, Inc.	`7.78ms` from Chicago, US
130.61.207.8	AS31898 Oracle Corporation	`0.35ms` from Frankfurt am Main, DE
131.189.28.8	AS8075 Microsoft Corporation	`0.18ms` from Frankfurt am Main, DE
64.114.100.248	AS852 TELUS Communications Inc.	`2.60ms` from Kelowna, CA
2.99.141.184	AS13285 TalkTalk Communications Limited	`2.41ms` from Manchester, GB
31.45.62.88	AS2119 Telenor Norge AS	`11.70ms` from Oslo, NO
15.200.13.8	AS8987 Amazon Data Services Ireland Ltd	`4.60ms` from Portland, US
69.251.5.56	AS7922 Comcast Cable Communications, LLC	`6.01ms` from Reston, US
71.202.188.40	AS7922 Comcast Cable Communications, LLC	`7.10ms` from San Jose, US
201.119.37.104	AS8151 UNINET	`3.82ms` from Santiago de Queretaro, MX
177.9.123.232	AS27699 TELEFÔNICA BRASIL S.A	`3.85ms` from Sao Paulo, BR
177.32.95.72	AS28573 Claro NXT Telecomunicacoes Ltda	`5.67ms` from Sao Paulo, BR
61.76.108.216	AS4766 Korea Telecom	`6.32ms` from Seoul, KR
110.150.18.8	AS1221 Telstra Limited	`4.43ms` from Sydney, AU
77.119.251.104	AS25255 ==> TELE2 AUSTRIA <==	`10.48ms` from Vienna, AT
119.29.76.72	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.81ms` from Guangzhou, CN
45.164.24.8	AS268604 SILAS E F DE AQUINO ELETROELETRONICOS	`13.17ms` from Joao Pessoa, BR
137.222.160.232	AS786 Jisc Services Limited	`6.47ms` from London, GB
24.23.71.88	AS7922 Comcast Cable Communications, LLC	`14.48ms` from Los Angeles, US
76.159.195.216	AS7922 Comcast Cable Communications, LLC	`12.31ms` from Los Angeles, 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 -m6 155.136.146.109

traceroute to 155.136.146.109 (155.136.146.109): 6 hops max, 52 byte packets

2 [AS5578] 195.168.117.209 0.869 ms

3 [AS5578] 62.168.99.154 1.968 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Bratislava, SK

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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