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 a month 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 3.70ms 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
151.253.95.185 AS5384 Emirates Internet 3.64ms from Al Fujairah City, AE
82.168.50.169 AS1136 KPN B.V. 3.52ms from Amsterdam, NL
73.33.176.217 AS7922 Comcast Cable Communications, LLC 8.21ms from Ashburn, US
50.233.15.201 AS7922 Comcast Cable Communications, LLC 1.20ms from Atlanta, US
46.214.109.185 AS48161 NEXTGEN COMMUNICATIONS SRL 5.40ms from Bucharest, RO
52.14.7.201 AS16509 Amazon.com, Inc. 0.17ms from Columbus, US
120.87.145.57 AS17816 China Unicom IP network China169 Guangdong province 5.11ms from Guangzhou, CN
122.230.43.89 AS4134 CHINANET-BACKBONE 7.55ms from Hangzhou, CN
47.121.139.137 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.46ms from Heyuan, CN
77.68.10.89 AS8560 IONOS SE 0.65ms from London, GB
12.91.173.73 AS7018 AT&T Enterprises, LLC 1.34ms from Los Angeles, US
112.211.150.41 AS9299 Philippine Long Distance Telephone Company 1.58ms from Manila, PH
202.147.130.25 AS9443 Vocus Retail 0.38ms from Melbourne, AU
178.154.225.137 AS200350 Yandex.Cloud LLC 2.70ms from Moscow, RU
194.186.20.9 AS3216 PJSC Vimpelcom 1.73ms from Moscow, RU
83.12.153.201 AS5617 Orange Polska Spolka Akcyjna 3.14ms from Poznan, PL
93.46.191.89 AS12874 Fastweb SpA 5.62ms from Rome, IT
67.79.210.153 AS11427 Charter Communications Inc 18.84ms from Schertz, US
125.179.46.9 AS17858 LG POWERCOMM 1.89ms from Seoul, KR
151.192.242.249 AS9506 Singtel Fibre Broadband 1.73ms from Singapore, SG
125.229.58.137 AS3462 Data Communication Business Group 0.72ms from Taipei, TW
94.137.187.121 AS16010 Magticom Ltd. 0.49ms from Tbilisi, GE
221.114.230.9 AS17506 ARTERIA Networks Corporation 1.20ms from Tokyo, JP
202.239.54.169 AS4694 IDC Frontier Inc. 0.83ms from Tokyo, JP
153.185.220.201 AS4713 NTT DOCOMO BUSINESS,Inc. 7.96ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 -m4 133.53.84.251
traceroute to 133.53.84.251 (133.53.84.251): 4 hops max, 52 byte packets
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
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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