155.136.58.0/24

AS21301 · Natwest Markets PLC

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Summary

Country	United Kingdom
Domain	natwest.com
ASN	AS21301
Parent Range	155.136.0.0/16
Registry	RIPE
ID	UK-NATWEST-155-136-0-0-16

WHOIS Details

inetnum:        155.136.0.0 - 155.136.255.255
netname:        UK-NATWEST-155-136-0-0-16
descr:          NatWest
country:        GB
admin-c:        CL5041-RIPE
tech-c:         RTST1-RIPE
status:         LEGACY
mnt-by:         RBSG-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2026-04-10T15:23:02Z
source:         RIPE

role:           Technical Role
address:        250 Bishopsgate
address:        London
address:        EC2M 3UR
e-mail:         ripe-tech@rbs.com
abuse-mailbox:  ripe-abuse@rbs.com
nic-hdl:        RTST1-RIPE
mnt-by:         RBSG-MNT
created:        2018-03-23T12:27:34Z
last-modified:  2026-04-10T15:08:40Z
source:         RIPE

person:         Sean Jarvis
address:        250 Bishopsgate
address:        London
address:        EC2M 3UR
phone:          +44 7972 792793
e-mail:         sean.jarvis@natwest.com
nic-hdl:        CL5041-RIPE
mnt-by:         RBSG-MNT
created:        2012-08-13T13:30:01Z
last-modified:  2026-04-10T14:49:33Z
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 155.136.58.0/24

Range	ASN	Company	Num of IPs
155.136.0.0/16	AS21054	NatWest	65,536
155.136.0.0/16	AS21301	NatWest	65,536
155.136.0.0/16	AS61231	NatWest	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	NatWest	65,536
155.136.0.0/16	AS21301	NatWest	65,536
155.136.0.0/16	AS61231	NatWest	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

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

IP Address	ASN	Details
155.136.58.8	AS21301 Natwest Markets PLC	`12.30ms` 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
71.50.105.232	AS19901 Brightspeed	`12.44ms` from Ashburn, US
157.96.85.120	AS3423 AT&T Enterprises, LLC	`11.82ms` from Durham, US
79.163.171.40	AS5617 Orange Polska Spolka Akcyjna	`10.05ms` from Gdansk, PL
58.236.43.216	AS9318 SK Broadband Co Ltd	`2.10ms` from Incheon, KR
98.109.61.40	AS701 Verizon Business	`1.37ms` from New York City, US
13.208.238.24	AS16509 Amazon.com, Inc.	`0.56ms` from Osaka, JP
109.189.52.88	AS2119 Telenor Norge AS	`5.91ms` from Oslo, NO
119.165.172.72	AS4837 CHINA UNICOM China169 Backbone	`1.97ms` from Qingdao, CN
46.182.26.104	AS49505 JSC Selectel	`1.06ms` from Saint Petersburg, RU
166.113.89.40	AS53449 OEC Fiber	`4.62ms` from Tulsa, US
185.120.144.104	AS9009 M247 Europe SRL	`0.21ms` from Bucharest, RO
189.172.235.72	AS8151 UNINET	`12.18ms` from Cancún, MX
196.127.73.152	AS36925 MEDITELECOM	`3.05ms` from Casablanca, MA
118.94.95.56	AS9583 Sify Limited	`1.14ms` from Chennai, IN
182.18.169.24	AS18229 CtrlS	`0.63ms` from Hyderabad, IN
78.176.113.136	AS9121 Turk Telekomunikasyon Anonim Sirketi	`1.99ms` from Istanbul, TR
76.13.22.232	AS47583 Hostinger International Limited	`1.60ms` from Jakarta, ID
172.80.47.184	AS22552 eSited Solutions	`0.11ms` from Los Angeles, US
87.195.113.8	AS12414 Solcon Internetdiensten B.V.	`9.83ms` from Meppel, NL
150.9.93.216	AS4685 Asahi Net	`2.20ms` from Osaka, JP
97.145.170.56	AS6167 Verizon Business	`16.68ms` from Philadelphia, US
123.169.90.56	AS4134 CHINANET-BACKBONE	`7.65ms` from Qingdao, CN
112.160.126.40	AS4766 Korea Telecom	`0.70ms` from Seoul, KR
47.88.234.24	AS45102 Alibaba (US) Technology Co., Ltd.	`0.50ms` from Singapore, SG
34.40.154.40	AS396982 Google LLC	`0.12ms` from Sydney, AU

Traceroute

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

traceroute -a -n -q1 -f2 155.136.58.9

traceroute to 155.136.58.9 (155.136.58.9): 64 hops max, 52 byte packets

2 [AS20940] 23.4.85.2 1.333 ms

3 [AS20940] 23.4.85.3 0.718 ms

4 [AS32787] 104.86.67.107 0.568 ms

5 [AS32787] 209.200.159.116 12.963 ms

6 *

7 *

8 *

9 [AS21301] 155.136.58.9 12.499 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On April 13th 2026

What are IP address ranges?

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