ASN Lookup Tool

Leaseweb Japan K.K. leaseweb.com JP JP 55 Routes

AS Data

AS134351

AS134351 – Leaseweb Japan K.K.

AS Number 134351
AS Name Leaseweb Japan K.K.
Organization Leaseweb Japan K.K. (org-ljk1-ap)
Country JP
Website leaseweb.com
Number of IPv4 Routes 53
Number of IPv6 Routes 2
ASN type ISP
Registry APNIC
Date Allocated 2020-03-13

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Use ASN data for AS134351 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
142.91.104.0/23 512
46.202.255.0/24 256
108.165.83.0/24 256
23.27.243.0/24 256
194.127.177.0/24 256
23.81.40.0/21 2048
142.111.67.0/24 256
195.40.70.0/23 512
108.165.82.0/23 512
23.26.44.0/22 1024
23.27.23.0/24 256
2001:df3:2680::/48 ~1×10²⁴
204.217.210.0/24 256
195.40.160.0/23 512
46.202.253.0/24 256
142.91.108.0/22 1024
142.91.106.0/23 512
194.127.181.0/24 256
173.234.64.0/22 1024
23.26.53.0/24 256
2401:d560::/32 ~79×10²⁷
195.206.110.0/24 256
45.147.60.0/24 256
46.203.45.0/24 256
5.188.222.0/24 256
195.172.211.0/24 256
195.40.5.0/24 256
46.203.28.0/24 256
23.27.14.0/24 256
142.111.208.0/24 256
142.111.34.0/24 256
142.111.141.0/24 256
195.40.120.0/23 512
188.116.6.0/23 512
194.127.194.0/24 256
50.114.3.0/24 256
23.26.61.0/24 256
195.172.150.0/24 256
64.79.242.0/24 256
108.165.87.0/24 256
195.40.12.0/24 256
108.165.180.0/23 512
108.165.82.0/24 256
195.40.122.0/23 512
166.88.149.0/24 256
198.33.176.0/24 256
23.27.127.0/24 256
108.165.81.0/24 256
142.111.155.0/24 256
103.254.61.0/24 256
50.114.92.0/24 256
46.203.52.0/24 256
23.106.224.0/21 2048
46.203.23.0/24 256
194.127.183.0/24 256

Raw Whois Response

[ JPNIC database provides information regarding IP address and ASN. Its use   ]
[ is restricted to network administration purposes. For further information,  ]
[ use 'whois -h whois.nic.ad.jp help'. To only display English output,        ]
[ add '/e' at the end of command, e.g. 'whois -h whois.nic.ad.jp xxx/e'.      ]

No match!!

Reference: WHOIS servers of RIRs
  APNIC WHOIS(whois.apnic.net)
  ARIN WHOIS(whois.arin.net)
  RIPE WHOIS(apps.db.ripe.net)
  LACNIC WHOIS(whois.lacnic.net)
  AfriNIC WHOIS(whois.afrinic.net)

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS133632 - AS134556'

as-block:       AS133632 - AS134556
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2014-09-03T01:31:49Z
source:         APNIC

role:           APNIC Hostmaster
address:        PO Box 3646
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2026-08-26T00:40:00Z
source:         APNIC

% Information related to 'AS134351'

% Abuse contact for 'AS134351' is 'abuse@jp.leaseweb.com'

aut-num:        AS134351
as-name:        LEASEWEB-AS-AP
descr:          Leaseweb Japan K.K.
country:        JP
org:            ORG-LJK1-AP
admin-c:        LJKA1-AP
tech-c:         LJKA1-AP
abuse-c:        AL1601-AP
mnt-lower:      MAINT-LEASEWEB-JP
mnt-routes:     MAINT-LEASEWEB-JP
mnt-by:         APNIC-HM
mnt-irt:        IRT-LEASEWEB-JP
last-modified:  2020-10-14T10:04:02Z
source:         APNIC

irt:            IRT-LEASEWEB-JP
address:        201 Chambre de Nishi Azabu,, 4-14-14, Nishiazabu, Minato Ku Tokyo-To 106-0031
e-mail:         abuse@jp.leaseweb.com
abuse-mailbox:  abuse@jp.leaseweb.com
admin-c:        LJKA1-AP
tech-c:         LJKA1-AP
auth:           # Filtered
remarks:        abuse@jp.leaseweb.com was validated on 2026-07-21
mnt-by:         MAINT-LEASEWEB-JP
last-modified:  2026-07-21T13:25:04Z
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:         noc@network.leaseweb.com
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:         abuse@jp.leaseweb.com
admin-c:        LJKA1-AP
tech-c:         LJKA1-AP
nic-hdl:        AL1601-AP
remarks:        Generated from irt object IRT-LEASEWEB-JP
remarks:        abuse@jp.leaseweb.com was validated on 2026-07-21
abuse-mailbox:  abuse@jp.leaseweb.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-07-21T13:25:30Z
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:         abuse@jp.leaseweb.com
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

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)

Parsed Whois Response

Peers

AS Number Description Country
AS6453 TATA COMMUNICATIONS AMERICA INC US
AS4637 Telstra International Limited HK
AS2914 NTT America, Inc. US
AS174 Cogent Communications, LLC US
AS16265 LeaseWeb Network B.V. NL

Upstreams

AS Number Description Country
AS6453 TATA COMMUNICATIONS AMERICA INC US
AS4637 Telstra International Limited HK
AS2914 NTT America, Inc. US
AS174 Cogent Communications, LLC US
AS16265 LeaseWeb Network B.V. NL

Legacy Routes

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Frequently Asked Questions

ASN AS134351 is an Autonomous System Number used to identify a network for BGP internet routing.
AS134351 is listed under Leaseweb Japan K.K..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.