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

2 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 3.67ms from Tokyo, JP
133.53.249.33 AS4729 Japan Atomic Energy Agency 3.92ms 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
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18.222.179.25 AS16509 Amazon.com, Inc. 0.16ms from Columbus, US
213.113.242.201 AS8434 Telenor Sverige AB 1.54ms from Copenhagen, DK
104.189.148.73 AS7018 AT&T Enterprises, LLC 3.61ms from Dallas, US
67.227.56.249 AS54103 MOD Mission Critical, LLC 0.17ms from Denver, US
156.234.209.105 AS138415 Yancy Limited 0.67ms from Hong Kong, HK
176.236.71.41 AS34984 Superonline Iletisim Hizmetleri A.S. 2.50ms from Istanbul, TR
178.125.227.169 AS6697 Republican Unitary Telecommunication Enterprise Beltelecom 2.59ms from Minsk, BY
208.252.73.41 AS701 Verizon Business 0.77ms from New York City, US
200.115.175.89 AS11556 Cable & Wireless Panama 0.84ms from Panama, PA
200.46.183.25 AS18809 Cable Onda 0.99ms from Panama, PA
104.145.6.9 AS6461 Zayo Bandwidth 3.69ms from Seattle, US
104.226.246.153 AS5650 Frontier Communications of America, Inc. 0.41ms from Secaucus, US
220.26.51.217 AS17676 SoftBank Corp. 3.67ms from Tokyo, JP
96.38.84.121 AS20115 Charter Communications LLC 16.76ms from Atlanta, US
121.99.248.41 AS9790 Two Degrees Networks Limited 1.49ms from Christchurch, NZ
39.184.135.121 AS56041 China Mobile communications corporation 7.59ms from Hangzhou, CN
27.111.177.89 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 0.72ms from Hong Kong, HK
180.66.197.41 AS9318 SK Broadband Co Ltd 5.67ms from Incheon, KR
102.128.78.121 AS328088 NetOne Cellular (Private) Limited 15.23ms from Johannesburg, ZA
188.247.41.233 AS39442 JSC RDE Unico 19.08ms from Moscow, RU
157.119.168.25 AS134290 Arrow Touch Wireless Internet Private Limited 9.58ms from Mumbai, IN
60.210.75.9 AS4837 CHINA UNICOM China169 Backbone 4.61ms from Qingdao, CN

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 133.53.71.146
traceroute to 133.53.71.146 (133.53.71.146): 6 hops max, 52 byte packets
2 [AS174] 149.6.131.153 7.059 ms
3 [AS174] 154.25.10.45 10.413 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Barcelona, ES
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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