Autonomous System details

AS4729

Japan Atomic Energy Agency  ·  jaea.go.jp

Japan
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AS4729 – Japan Atomic Energy Agency

Field Value
Country Japan
Website jaea.go.jp
Hosted domains 2
IPv4 addresses 131,072
IPv6 addresses 0
ASN type Business
Registry jpnic
Updated 3 months ago on Dec 19, 2025

IP Ranges

Netblock Company Num of IPs
133.53.0.0/16 Japan Network Information Center 65,536
133.188.0.0/16 Japan Network Information Center 65,536

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS4729
                                                OrgID:          AS4729
                                                ASName:         AS4729
                                                ASNumber:       AS4729
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 2 domain names hosted across 2 IP addresses on this ASN.

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IP Address Domain Domains on this IP
133.188.68.94 ██████████ 1
133.188.113.250 ██████████ 1

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Peers

There is 1 peer for this ASN.

Peers Name
AS2907 Research Organization of Information and Systems, National Institute of Informatics
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS2907 Research Organization of Information and Systems, National Institute of Informatics
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
133.53.249.33 AS4729 Japan Atomic Energy Agency 3.85ms from Tokyo, JP
133.53.250.251 AS4729 Japan Atomic Energy Agency 3.68ms 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
167.115.11.201 AS17386 W.W.GRAINGER 3.03ms from Chicago, US
52.210.105.57 AS16509 Amazon.com, Inc. 0.18ms from Dublin, IE
132.199.158.105 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 4.74ms from Garching, DE
103.131.102.153 AS153038 Business Zone Limited 2.37ms from Kolkata, IN
79.173.144.73 AS5631 Telcom Networks Limited 0.64ms from London, GB
147.255.204.73 AS395954 Leaseweb USA, Inc. 0.28ms from Los Angeles, US
12.8.93.41 AS7018 AT&T Enterprises, LLC 1.17ms from Minneapolis, US
3.96.201.169 AS16509 Amazon.com, Inc. 0.15ms from Montreal, CA
96.125.195.73 AS40864 Targo Communications Inc. 1.09ms from Montreal, CA
68.205.231.25 AS33363 Charter Communications, Inc 8.76ms from Orlando, US
121.85.199.89 AS17511 OPTAGE Inc. 2.11ms from Osaka, JP
95.68.127.249 AS12578 SIA Tet 2.66ms from Riga, LV
211.192.153.73 AS4766 Korea Telecom 7.65ms from Seoul, KR
47.102.237.233 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.10ms from Shanghai, CN
46.145.0.73 AS1136 KPN B.V. 2.19ms from Amsterdam, NL
50.21.147.41 AS27338 GoNetSpeed 4.65ms from Atlanta, US
221.198.54.41 AS4837 CHINA UNICOM China169 Backbone 5.21ms from Beijing, CN
120.3.164.217 AS4837 CHINA UNICOM China169 Backbone 9.97ms from Beijing, CN
16.147.99.137 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
70.62.63.249 AS33363 Charter Communications, Inc 12.65ms from Chicago, US
4.39.38.233 AS3356 Level 3 Parent, LLC 1.20ms from Cincinnati, US
54.195.177.233 AS16509 Amazon.com, Inc. 0.27ms from Dublin, IE
183.255.127.9 AS9808 China Mobile Communications Group Co., Ltd. 13.28ms from Guangzhou, CN
103.133.20.73 AS136868 PT. Terasys Virtual 1.33ms from Jakarta, ID
217.194.214.89 AS20860 IOMART CLOUD SERVICES LIMITED 6.17ms from London, GB

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 133.53.117.151
traceroute to 133.53.117.151 (133.53.117.151): 6 hops max, 52 byte packets
2 [AS917] 199.119.65.2 0.191 ms
3 [AS969] 199.119.64.236 0.151 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Ashburn, US
On

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 AS4729 at robtex.

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