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AS134351 – Leaseweb Japan K.K.

Field	Value
Country	Japan
Website	leaseweb.com
Hosted domains	692
IPv4 addresses	20,736
IPv6 addresses	79,229,371,440,083,952,629,200,000,000
ASN type	Hosting
Registry	apnic
Allocated	6 years ago on Mar 13, 2020
Updated	6 years ago on Oct 14, 2020

Netblock	Company	Num of IPs
23.81.40.0/21	Leaseweb Japan K.K.	2,048
23.106.224.0/21	Leaseweb Japan K.K.	2,048
23.26.44.0/22	Ace Data Centers, Inc.	1,024
142.91.108.0/22	Leaseweb Japan K.K.	1,024
173.234.64.0/22	Leaseweb Japan K.K.	1,024
108.165.180.0/23	Ace Data Centers, Inc.	512
142.91.104.0/23	Leaseweb Japan K.K.	512
142.91.106.0/23	Leaseweb Japan K.K.	512
188.116.6.0/23	Extra Consult SRL	512
195.40.70.0/23	Code200 UAB	512
195.40.120.0/23	Code200 UAB	512
195.40.122.0/23	Code200 UAB	512
195.40.160.0/23	Code200 UAB	512
5.188.222.0/24	OPENWAY LIMITED	256
23.26.53.0/24	Ace Data Centers, Inc.	256
23.26.61.0/24	Ace Data Centers, Inc.	256
23.27.14.0/24	Ace Data Centers II, L.L.C.	256
23.27.23.0/24	Ace Data Centers II, L.L.C.	256
23.27.127.0/24	Ace Data Centers II, L.L.C.	256
23.27.243.0/24	Ace Data Centers II, L.L.C.	256
45.147.60.0/24	Aventice LLC	256
46.202.253.0/24	Private Customer	256
46.202.255.0/24	Private Customer	256
46.203.23.0/24	Private Customer	256
46.203.28.0/24	Private Customer	256
46.203.45.0/24	Private Customer	256
46.203.52.0/24	Private Customer	256
50.114.3.0/24	Ace Data Centers, Inc.	256
50.114.92.0/24	Ace Data Centers, Inc.	256
64.79.242.0/24	Altus Communications Inc.	256
108.165.81.0/24	Ace Data Centers, Inc.	256
108.165.82.0/24	Ace Data Centers, Inc.	256
108.165.83.0/24	Ace Data Centers, Inc.	256
108.165.87.0/24	Ace Data Centers, Inc.	256
142.111.34.0/24	Ace Data Centers II, L.L.C.	256
142.111.67.0/24	Ace Data Centers II, L.L.C.	256
142.111.141.0/24	Ace Data Centers II, L.L.C.	256
142.111.155.0/24	Ace Data Centers II, L.L.C.	256
142.111.208.0/24	Ace Data Centers II, L.L.C.	256
166.88.149.0/24	Ace Data Centers II, L.L.C.	256
194.127.177.0/24	Extra Consult SRL	256
194.127.181.0/24	Extra Consult SRL	256
194.127.183.0/24	Extra Consult SRL	256
194.127.194.0/24	Extra Consult SRL	256
195.40.5.0/24	Code200 UAB	256
195.40.12.0/24	Code200 UAB	256
195.172.150.0/24	Code200 UAB	256
195.172.211.0/24	Code200 UAB	256
195.206.110.0/24	Braveway LLC	256
204.217.210.0/24	Aventice LLC	256

Netblock	Company
2401:d560::/32	Leaseweb Japan K.K.
2001:df3:2680::/48	Leaseweb Japan K.K.

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WHOIS Details

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                                                ASHandle:       AS134351
                                                OrgID:          AS134351
                                                ASName:         AS134351
                                                ASNumber:       AS134351
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 692 domain names hosted across 465 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
142.91.104.31	██████████	14
142.91.108.217	█████████	13
142.91.109.0	█████████	8
142.91.104.10	██████████	7
195.40.70.5	██████████	5
142.91.106.214	██████████	5
142.91.106.196	██████████	4
23.81.43.17	██████████	4
23.106.231.10	██████████	4
195.40.70.7	██████████	4

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Peers

There are 5 peers for this ASN.

Peers	Name
AS16265	LeaseWeb Network B.V.
AS174	Cogent Communications, LLC
AS2914	NTT America, Inc.
AS4637	Telstra Global
AS6453	TATA COMMUNICATIONS (AMERICA) INC

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ASN API & Database

Upstreams

There are 5 upstreams for this ASN.

upstreams	Name
AS16265	LeaseWeb Network B.V.
AS174	Cogent Communications, LLC
AS2914	NTT America, Inc.
AS4637	Telstra Global
AS6453	TATA COMMUNICATIONS (AMERICA) INC

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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
23.81.44.85	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
194.127.177.69	AS134351 Leaseweb Japan K.K.	`0.27ms` from Tokyo, JP
23.81.45.212	AS134351 Leaseweb Japan K.K.	`0.25ms` from Tokyo, JP
23.81.47.189	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
173.234.65.124	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
23.106.225.1	AS134351 Leaseweb Japan K.K.	`0.25ms` from Tokyo, JP
188.116.6.202	AS134351 Leaseweb Japan K.K.	`0.27ms` from Tokyo, JP
23.106.226.9	AS134351 Leaseweb Japan K.K.	`0.25ms` from Tokyo, JP
2001:df3:2680:a002:3::a	AS134351 Leaseweb Japan K.K.	`0.27ms` from Tokyo, JP
142.91.104.254	AS134351 Leaseweb Japan K.K.	`0.30ms` from Tokyo, JP
23.106.231.124	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
23.106.230.60	AS134351 Leaseweb Japan K.K.	`0.27ms` from Tokyo, JP
23.106.228.186	AS134351 Leaseweb Japan K.K.	`0.24ms` from Tokyo, JP
194.127.181.47	AS134351 Leaseweb Japan K.K.	`0.28ms` from Tokyo, JP
194.127.194.24	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
194.127.183.51	AS134351 Leaseweb Japan K.K.	`0.27ms` from Tokyo, JP
23.81.46.203	AS134351 Leaseweb Japan K.K.	`0.25ms` from Tokyo, JP
142.91.106.252	AS134351 Leaseweb Japan K.K.	`0.30ms` from Tokyo, JP
142.91.105.253	AS134351 Leaseweb Japan K.K.	`0.29ms` from Tokyo, JP
5.188.222.0	AS134351 Leaseweb Japan K.K.	`0.31ms` from Tokyo, JP
23.81.40.14	AS134351 Leaseweb Japan K.K.	`0.27ms` from Tokyo, JP
23.106.224.253	AS134351 Leaseweb Japan K.K.	`0.27ms` from Tokyo, JP
23.106.227.226	AS134351 Leaseweb Japan K.K.	`0.24ms` from Tokyo, JP
173.234.66.2	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
142.91.108.81	AS134351 Leaseweb Japan K.K.	`0.33ms` 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
172.203.192.239	AS8075 Microsoft Corporation	`1.12ms` from Ashburn, US
62.217.100.47	AS5408 National Infrastructures for Research and Technology S.A.	`1.07ms` from Athens, GR
68.37.73.143	AS7922 Comcast Cable Communications, LLC	`7.99ms` from Flint, US
87.227.38.159	AS1257 Tele2 Sverige AB	`1.00ms` from Goeteborg, SE
117.123.191.255	AS17849 SK Broadband Co Ltd	`2.05ms` from Incheon, KR
219.250.156.111	AS9318 SK Broadband Co Ltd	`7.02ms` from Incheon, KR
90.212.122.47	AS5607 Sky UK Limited	`1.78ms` from London, GB
104.120.76.111	AS16625 Akamai Technologies, Inc.	`0.14ms` from Mumbai, IN
51.84.44.47	AS16509 Amazon.com, Inc.	`0.98ms` from Petaẖ Tiqva, IL
154.67.125.175	AS21351 Canal + Telecom SAS	`2.81ms` from Saint-Denis, RE
20.211.46.159	AS8075 Microsoft Corporation	`0.70ms` from Sydney, AU
182.65.199.255	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.19ms` from Ahmedabad, IN
118.92.131.15	AS9500 One New Zealand Group Limited	`1.56ms` from Christchurch, NZ
47.187.234.63	AS5650 Frontier Communications of America, Inc.	`2.54ms` from Dallas, US
173.209.191.63	AS18624 Greenlight	`2.54ms` from Durham, US
90.212.239.95	AS5607 Sky UK Limited	`5.32ms` from Erith, GB
174.170.147.15	AS7922 Comcast Cable Communications, LLC	`7.51ms` from Houston, US
118.46.227.95	AS4766 Korea Telecom	`1.45ms` from Incheon, KR
1.237.137.31	AS9318 SK Broadband Co Ltd	`7.37ms` from Incheon, KR
182.186.83.95	AS17557 Pakistan Telecommunication Company Limited	`19.88ms` from Islamabad, PK
159.117.75.95	AS18046 DongFong Technology Co. Ltd.	`7.94ms` from Taipei, TW
76.68.115.47	AS577 Bell Canada	`5.55ms` from Toronto, CA
185.101.157.63	AS207143 hosttech GmbH	`1.27ms` from Zuerich, CH
95.57.12.207	AS9198 JSC Kazakhtelecom	`19.41ms` from Astana, KZ
3.129.33.111	AS16509 Amazon.com, Inc.	`0.12ms` from Columbus, US

Traceroute

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

traceroute -a -n -q1 -f3 194.127.194.58

traceroute to 194.127.194.58 (194.127.194.58): 64 hops max, 52 byte packets

3 [AS38158] 121.100.7.178 31.992 ms

4 *

5 *

6 *

7 [AS6453] 120.29.217.12 100.047 ms

8 [AS6453] 180.87.180.45 102.581 ms

9 *

10 [AS134351] 194.127.194.58 100.462 ms

Measurement taken from

IPinfo ProbeNet in Denpasar, ID

On May 4th 2026

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS134351 at robtex.

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