155.136.144.0/24

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:         [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

Overlapping Ranges

BGP prefixes that contain 155.136.144.0/24

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

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 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
79.166.36.8	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.64ms` from Athens, GR
23.96.237.168	AS8075 Microsoft Corporation	`0.48ms` from Chicago, US
72.49.146.72	AS6181 Cincinnati Bell Telephone Company LLC	`1.58ms` from Cincinnati, US
78.40.171.200	AS35110 Regione Basilicata	`6.93ms` from Frosinone, IT
49.71.123.136	AS4134 CHINANET-BACKBONE	`5.19ms` from Huai'an, CN
97.103.31.168	AS33363 Charter Communications, Inc	`4.91ms` from Orlando, US
62.16.243.88	AS2119 Telenor Norge AS	`5.57ms` from Oslo, NO
189.129.196.120	AS8151 UNINET	`8.43ms` from Santiago de Queretaro, MX
212.93.131.88	AS8708 DIGI ROMANIA S.A.	`7.13ms` from Timisoara, RO
92.70.65.232	AS1136 KPN B.V.	`2.53ms` from Amsterdam, NL
216.132.112.184	AS5065 Bunny Communications	`0.90ms` from Ashburn, US
80.135.14.40	AS3320 Deutsche Telekom AG	`7.23ms` from Berlin, DE
79.219.139.232	AS3320 Deutsche Telekom AG	`2.04ms` from Duesseldorf, DE
2.207.108.232	AS3209 Vodafone GmbH	`8.32ms` from Hamburg, DE
118.130.66.200	AS3786 LG DACOM Corporation	`7.13ms` from Incheon, KR
58.239.182.40	AS9318 SK Broadband Co Ltd	`6.31ms` from Incheon, KR
150.143.94.152	AS6871 Plusnet	`4.22ms` from London, GB
103.205.0.136	AS26658 HT	`0.30ms` from Los Angeles, US
139.103.19.168	AS611 NB-PEI Educational Computer Network	`16.04ms` from Montreal, CA
24.185.42.168	AS6128 Cablevision Systems Corp.	`6.89ms` from New York City, US
183.149.245.152	AS4134 CHINANET-BACKBONE	`5.65ms` from Ningbo, CN
80.140.101.88	AS3320 Deutsche Telekom AG	`5.22ms` from Nuernberg, DE
120.142.141.136	AS10036 DLIVE	`1.72ms` from Seoul, KR
61.228.218.72	AS3462 Data Communication Business Group	`1.46ms` from Taipei, TW
125.14.73.72	AS9824 JCOM Co., Ltd.	`10.82ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -m5 155.136.144.247

traceroute to 155.136.144.247 (155.136.144.247): 5 hops max, 52 byte packets

1 [AS199524] 93.174.164.1 0.09 ms

2 [AS199524] 5.188.132.3 0.393 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Tashkent, UZ

On January 30th 2026

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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