23.81.40.0/21

AS134351 · Leaseweb Japan K.K.

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Summary

Country	Japan
Domain	leaseweb.com
ASN	AS134351
Registry	APNIC
ID	LEASEWEB-JP

WHOIS Details

inetnum:        23.81.40.0 - 23.81.47.255
netname:        LEASEWEB-JP
descr:          Leaseweb Japan K.K.
country:        JP
org:            ORG-LJK1-AP
admin-c:        LJKA1-AP
tech-c:         LJKA1-AP
abuse-c:        AL1601-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-LEASEWEB-JP
mnt-routes:     MAINT-LEASEWEB-JP
mnt-irt:        IRT-LEASEWEB-JP
last-modified:  2022-06-27T06:10:54Z
source:         APNIC

irt:            IRT-LEASEWEB-JP
address:        201 Chambre de Nishi Azabu,, 4-14-14, Nishiazabu, Minato Ku Tokyo-To 106-0031
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        LJKA1-AP
tech-c:         LJKA1-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2026-01-20
mnt-by:         MAINT-LEASEWEB-JP
last-modified:  2026-01-20T13:58:28Z
source:         APNIC

organisation:   ORG-LJK1-AP
org-name:       Leaseweb Japan K.K.
org-type:       LIR
country:        JP
address:        201 Chambre de Nishi Azabu,
address:        4-14-14, Nishiazabu
phone:          +31(0)20-3165168
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:07Z
source:         APNIC

role:           ABUSE LEASEWEBJP
country:        ZZ
address:        201 Chambre de Nishi Azabu,, 4-14-14, Nishiazabu, Minato Ku Tokyo-To 106-0031
phone:          +000000000
e-mail:         [email protected]
admin-c:        LJKA1-AP
tech-c:         LJKA1-AP
nic-hdl:        AL1601-AP
remarks:        Generated from irt object IRT-LEASEWEB-JP
remarks:        [email protected] was validated on 2026-01-20
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-20T13:58:56Z
source:         APNIC

role:           Leaseweb Japan KK administrator
address:        201 Chambre de Nishi Azabu,, 4-14-14, Nishiazabu, Minato Ku Tokyo-To 106-0031
country:        JP
phone:          +31(0)20-3165168
e-mail:         [email protected]
admin-c:        LJKA1-AP
tech-c:         LJKA1-AP
nic-hdl:        LJKA1-AP
mnt-by:         MAINT-LEASEWEB-JP
last-modified:  2020-03-13T00:37:25Z
source:         APNIC

route:          23.81.40.0/21
origin:         AS134351
descr:          Leaseweb Japan K.K. 201 Chambre de Nishi Azabu, 4-14-14, Nishiazabu
mnt-by:         MAINT-LEASEWEB-JP
last-modified:  2024-01-11T08:51:39Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 23.81.0.0/16

Range	ASN	Company	Num of IPs
23.81.224.0/19	AS19148	LeaseWeb USA, Inc. Pheonix	8,192
23.81.48.0/20	AS19148	LeaseWeb USA, Inc. Pheonix	4,096
23.81.128.0/21	AS19148	LeaseWeb USA, Inc. Pheonix	2,048
23.81.144.0/21	AS19148	LeaseWeb USA, Inc. Pheonix	2,048
23.81.16.0/21	AS19148	LeaseWeb USA, Inc. Pheonix	2,048
23.81.192.0/21	AS19148	LeaseWeb USA, Inc. Pheonix	2,048
23.81.120.0/21	AS19148	LeaseWeb USA, Inc. Pheonix	2,048
23.81.88.0/21	AS19148	LeaseWeb USA, Inc. Pheonix	2,048
23.81.32.0/21	AS205544	Leaseweb UK Limited	2,048
23.81.152.0/21	AS27411	LeaseWeb USA, Inc. Chicago	2,048
23.81.24.0/21	AS27411	LeaseWeb USA, Inc. Chicago	2,048
23.81.72.0/21	AS394380	Leaseweb USA, Inc.	2,048
23.81.184.0/21	AS395954	LeaseWeb USA, Inc. Los Angeles	2,048
23.81.0.0/21	AS396190	LeaseWeb USA, Inc. Seattle	2,048
23.81.136.0/21	AS396190	LeaseWeb USA, Inc. Seattle	2,048
23.81.208.0/21	AS396190	LeaseWeb USA, Inc. Seattle	2,048
23.81.64.0/21	AS396362	LeaseWeb USA, Inc. New York	2,048
23.81.104.0/21	AS7203	Leaseweb USA, Inc.	2,048
23.81.176.0/21	AS7203	Leaseweb USA, Inc.	2,048
23.81.220.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.8.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.100.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.84.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.216.0/22	AS19148	LeaseWeb USA, Inc. Pheonix	1,024
23.81.204.0/22	AS19148	LeaseWeb USA, Inc. Pheonix	1,024
23.81.172.0/22	AS19148	LeaseWeb USA, Inc. Pheonix	1,024
23.81.80.0/22	AS19148	LeaseWeb USA, Inc. Pheonix	1,024
23.81.112.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.116.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.12.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.160.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.164.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.168.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.96.0/22	AS7203	Leaseweb USA, Inc.	1,024
23.81.200.0/22	AS7203	Leaseweb USA, Inc.	1,024

Hosted domains

There are 12 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
23.81.44.23	195kin.com	2
23.81.43.17	titancontainers.jp	2
23.81.41.131	xrdgames.com	1
23.81.41.137	padcloud.io	1
23.81.40.66	kai.md	1
23.81.45.17	plumvillage.org	1
23.81.41.134	sjsalomoninternational.com	1
23.81.41.165	goolge-corp.com	1
23.81.41.153	jkmarshallmercantile.com	1
23.81.41.24	swollows.xyz	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

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

IP Address	ASN	Details
23.81.40.13	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
23.81.47.60	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
23.81.44.126	AS134351 Leaseweb Japan K.K.	`0.25ms` from Tokyo, JP
23.81.41.205	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
23.81.45.70	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
23.81.42.252	AS134351 Leaseweb Japan K.K.	`0.25ms` from Tokyo, JP
23.81.46.203	AS134351 Leaseweb Japan K.K.	`0.25ms` from Tokyo, JP
23.81.43.144	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP

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
75.8.231.21	AS7018 AT&T Enterprises, LLC	`2.68ms` from Atlanta, US
185.169.250.101	AS41897 Sat-Trakt D.O.O.	`11.16ms` from Belgrade, RS
212.200.29.229	AS8400 TELEKOM SRBIJA a.d.	`0.40ms` from Belgrade, RS
197.230.77.101	AS36925 MEDITELECOM	`2.83ms` from Casablanca, MA
74.135.91.5	AS10796 Charter Communications Inc	`15.57ms` from Cleveland, US
162.155.146.197	AS10796 Charter Communications Inc	`3.30ms` from Cleveland, US
179.51.158.197	AS271182 SEGNET TELECOMUNICACOES LTDA	`7.74ms` from Curitiba, BR
107.91.34.53	AS20057 AT&T Enterprises, LLC	`2.87ms` from Dallas, US
216.96.95.213	AS7029 Windstream Communications LLC	`9.23ms` from Dallas, US
103.220.13.149	AS135245 Bennett Coleman And Co Ltd	`0.96ms` from Delhi, IN
189.177.81.213	AS8151 UNINET	`1.05ms` from Guadalajara, MX
119.210.208.133	AS4766 Korea Telecom	`5.26ms` from Incheon, KR
163.181.220.101	AS24429 Zhejiang Taobao Network Co.,Ltd	`0.72ms` from Jakarta, ID
188.190.180.117	AS28773 Global Technologies of Ukraine LLC	`0.82ms` from Khmelnytskyi, UA
95.165.217.133	AS25513 PJSC Moscow city telephone network	`1.63ms` from Moscow, RU
184.72.110.149	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
195.223.89.213	AS3269 Telecom Italia S.p.A.	`1.97ms` from Rome, IT
186.6.75.53	AS6400 Compañía Dominicana de Teléfonos S. A.	`3.38ms` from Santo Domingo, DO
125.133.24.213	AS4766 Korea Telecom	`1.62ms` from Seoul, KR
122.117.142.229	AS3462 Data Communication Business Group	`3.83ms` from Taichung, TW
34.169.92.165	AS396982 Google LLC	`0.11ms` from The Dalles, US
193.59.177.21	AS8308 NAUKOWA I AKADEMICKA SIEC KOMPUTEROWA - PANSTWOWY INSTYTUT BADAWCZY	`8.15ms` from Warsaw, PL
116.209.41.69	AS4134 CHINANET-BACKBONE	`3.56ms` from Wuhan, CN
96.110.245.229	AS7922 Comcast Cable Communications, LLC	`3.28ms` from Ashburn, US
193.126.251.165	AS1897 NOS COMUNICACOES, S.A.	`2.67ms` from Braga, PT

Traceroute

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

traceroute -a -n -q1 -f3 23.81.41.131

traceroute to 23.81.41.131 (23.81.41.131): 64 hops max, 52 byte packets

3 [] 101.203.89.213 0.6 ms

4 [] 31.31.38.243 1.196 ms

5 [AS134351] 23.106.224.7 0.695 ms

6 [AS134351] 23.81.41.131 1.028 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On January 19th 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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