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 4 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
133.188.113.250 ██████████ 1
133.188.68.94 ██████████ 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

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

IP Address ASN Details
133.53.250.251 AS4729 Japan Atomic Energy Agency 3.64ms 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
46.145.0.73 AS1136 KPN B.V. 2.22ms from Amsterdam, NL
103.53.109.169 AS133970 Tycoon Computers Pvt. Ltd. 3.31ms from Delhi, IN
65.121.100.233 AS209 CenturyLink Communications, LLC 5.35ms from Denver, US
216.246.211.201 AS394195 Clearnetworx 6.01ms from Denver, US
103.12.175.249 AS58655 SkyTel Communications Limited 4.75ms from Dhaka, BD
88.81.122.73 AS39093 WESTNET BROADBAND MAYO LIMITED 3.66ms from Dublin, IE
87.171.196.105 AS3320 Deutsche Telekom AG 10.80ms from Frankfurt am Main, DE
220.188.220.121 AS4134 CHINANET BACKBONE 10.33ms from Hangzhou, CN
93.118.79.169 AS12479 Orange Espagne SA 0.74ms from Madrid, ES
151.83.61.9 AS1267 WIND TRE S.P.A. 7.69ms from Milan, IT
95.68.245.41 AS12389 PJSC Rostelecom 12.06ms from Samara, RU
184.68.2.25 AS6327 Shaw Communications 3.26ms from Seattle, US
79.190.206.89 AS5617 Orange Polska Spolka Akcyjna 5.96ms from Warsaw, PL
20.47.118.9 AS8069 Microsoft Corporation 0.22ms from Amsterdam, NL
14.98.4.153 AS45820 Tata Teleservices ISP AS 0.97ms from Bengaluru, IN
187.5.108.9 AS8167 V tal 3.55ms from Brasilia, BR
27.10.252.25 AS4837 CHINA UNICOM China169 Backbone 2.39ms from Chongqing, CN
182.30.59.233 AS8987 Amazon Data Services Ireland Ltd 0.75ms from Columbus, US
18.253.94.169 AS8987 Amazon Data Services Ireland Ltd 0.77ms from Columbus, US
12.206.69.57 AS7018 AT&T Enterprises, LLC 1.88ms from Houston, US
115.93.156.105 AS3786 LG DACOM Corporation 1.77ms from Incheon, KR
121.189.59.185 AS4766 Korea Telecom 0.95ms from Incheon, KR
213.144.119.73 AS25145 Teknotel Telekomunikasyon A.S. 1.55ms from Istanbul, TR
180.244.19.201 AS7713 PT Telekomunikasi Indonesia 1.73ms from Jakarta, ID
2.222.83.57 AS5607 Sky UK Limited 1.75ms 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 -m5 133.188.172.25
traceroute to 133.188.172.25 (133.188.172.25): 5 hops max, 52 byte packets
1 [AS208450] 45.136.59.1 14.129 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Aktau, KZ
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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