133.3.0.0/16

AS2504 · Kyoto University

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Summary

Country	Japan
Domain	nic.ad.jp
ASN	AS2504
Registry	APNIC
ID	JPNIC-NET-JP-ERX

WHOIS Details

inetnum:        133.0.0.0 - 133.255.255.255
netname:        JPNIC-NET-JP-ERX
descr:          Japan Network Information Center
country:        JP
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
abuse-c:        AJ382-AP
remarks:        133/8 block is an ERX range which transfered from
remarks:        ARIN to APNIC on 2009-10-30
remarks:        The original allocation date was 1997-03-01
remarks:        Please search  whois.nic.ad.jp for more information
remarks:        about this range
remarks:        % whois -h whois.nic.ad.jp ***.***.***.***/e
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
last-modified:  2022-11-01T04:33:10Z
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, japan
e-mail:         hostmaster@nic.ad.jp
abuse-mailbox:  hostmaster@nic.ad.jp
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
remarks:        hostmaster@nic.ad.jp was validated on 2024-11-27
mnt-by:         MAINT-JPNIC
last-modified:  2025-09-04T01:00:00Z
source:         APNIC

role:           ABUSE JPNICJP
country:        ZZ
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, japan
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         hostmaster@nic.ad.jp
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
nic-hdl:        AJ382-AP
remarks:        Generated from irt object IRT-JPNIC-JP
remarks:        hostmaster@nic.ad.jp was validated on 2024-11-27
abuse-mailbox:  hostmaster@nic.ad.jp
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-23T00:15:35Z
source:         APNIC

role:           Japan Network Information Center
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         hostmaster@nic.ad.jp
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
last-modified:  2022-01-05T03:04:02Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 133.0.0.0/8

Range	ASN	Company	Num of IPs
133.237.0.0/16	AS23820	Rakuten Group, Inc.	65,536
133.114.0.0/16	AS2527	Sony Network Communications Inc.	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.175.0.0/16	AS2519	ARTERIA Networks Corporation	65,536
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.112.0.0/16	AS2522	Japan Network Information Center	65,536
133.110.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.218.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.167.0.0/16	AS9371	SAKURA Internet Inc.	65,536
133.142.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	65,536
133.236.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.155.0.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.155.128.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.186.128.0/17	AS45974	NHN JAPAN Corp.	32,768
133.232.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.130.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.32.0.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.149.192.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.247.0.0/18	AS131918	SHONAN CABLE NETWORK	16,384
133.149.128.0/18	AS4677	Marubeni OKI Network Solutions Inc.	16,384
133.186.64.0/18	AS131915	Hamamatsu Cable Television .Inc	16,384
133.165.192.0/18	AS17534	NSK Co.,Ltd.	16,384
133.238.64.0/18	AS131958	TAMA CABLE NETWORK CO., LTD.	16,384
133.165.128.0/18	AS2527	Sony Network Communications Inc.	16,384
133.226.64.0/19	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	8,192
133.238.32.0/19	AS2497	IIJ Internet	8,192
133.232.64.0/19	AS2514	INTERLINK Co.,LTD	8,192
133.32.224.0/19	AS2519	ARTERIA Networks Corporation	8,192
133.232.0.0/19	AS7682	DMG MORI Digital Co., LTD.	8,192
133.226.96.0/19	AS9997	CTY Co.,Ltd.	8,192
133.226.144.0/20	AS24279	SENDAI CATV CO.,LTD.	4,096
133.186.0.0/20	AS10010	TOKAI Communications Corporation	4,096
133.32.80.0/20	AS131918	SHONAN CABLE NETWORK	4,096
133.247.144.0/20	AS131949	General Incorporated Foundation Aso Telework Center	4,096
133.238.16.0/20	AS2497	IIJ Internet	4,096
133.32.128.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.226.0.0/20	AS131934	ICC Corporation	4,096
133.32.176.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.232.112.0/20	AS2514	INTERLINK Co.,LTD	4,096
133.88.48.0/20	AS23778	IMIZU CABLE NETWORK CO.,LTD.	4,096
133.226.160.0/20	AS17958	Kasaoka Cable Vision LIMITED	4,096
133.88.32.0/20	AS18281	Chitahanto Cable Network Corp.	4,096
133.226.16.0/20	AS23624	Chukai Television Co,.Ltd.	4,096
133.32.208.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.247.240.0/20	AS131923	MCAT Ltd.	4,096

Hosted domains

There are 9 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
133.3.251.237	kuhp.net	2
133.3.249.29	mydatabase.jp	1
133.3.249.16	kikigengo.jp	1
133.3.249.21	nagaikigenki.com	1
133.3.5.50	dynamic-exciton.jp	1
133.3.5.36	mamitsukalab.org	1
133.3.251.162	majalahqalam.kyoto.jp	1
133.3.249.24	kakioka2026.org	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
133.3.142.1	AS2504 Kyoto University	`2.27ms` from Osaka, JP
133.3.5.60	AS2504 Kyoto University	`1.46ms` from Osaka, JP
133.3.130.104	AS2504 Kyoto University	`1.79ms` from Osaka, JP
133.3.244.5	AS2504 Kyoto University	`28.00ms` from Osaka, JP
133.3.18.61	AS2504 Kyoto University	`1.79ms` from Osaka, JP
133.3.48.16	AS2504 Kyoto University	`1.86ms` from Osaka, JP
133.3.254.9	AS2504 Kyoto University	`1.55ms` from Osaka, JP
133.3.134.133	AS2504 Kyoto University	`1.89ms` from Osaka, JP
133.3.13.1	AS2504 Kyoto University	`1.77ms` from Osaka, JP
133.3.52.201	AS2504 Kyoto University	`1.45ms` from Osaka, JP
133.3.2.198	AS2504 Kyoto University	`1.77ms` from Osaka, JP
133.3.14.50	AS2504 Kyoto University	`1.87ms` from Osaka, JP
133.3.143.17	AS2504 Kyoto University	`1.95ms` from Osaka, JP
133.3.69.30	AS2504 Kyoto University	`1.98ms` from Osaka, JP
133.3.197.49	AS2504 Kyoto University	`1.48ms` from Osaka, JP
133.3.139.193	AS2504 Kyoto University	`1.86ms` from Osaka, JP
133.3.147.23	AS2504 Kyoto University	`1.87ms` from Osaka, JP
133.3.46.66	AS2504 Kyoto University	`1.87ms` from Osaka, JP
133.3.250.42	AS2504 Kyoto University	`1.47ms` from Osaka, JP
133.3.247.121	AS2504 Kyoto University	`1.46ms` from Osaka, JP
133.3.140.24	AS2504 Kyoto University	`1.92ms` from Osaka, JP
133.3.136.51	AS2504 Kyoto University	`1.93ms` from Osaka, JP
133.3.242.40	AS2504 Kyoto University	`1.47ms` from Osaka, JP
133.3.41.65	AS2504 Kyoto University	`1.90ms` from Osaka, JP
133.3.63.254	AS2504 Kyoto University	`2.42ms` from Osaka, 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
67.165.36.224	AS7922 Comcast Cable Communications, LLC	`10.01ms` from Ashburn, US
97.166.107.32	AS6167 Verizon Business	`14.13ms` from Atlanta, US
37.80.103.112	AS3320 Deutsche Telekom AG	`17.82ms` from Berlin, DE
173.25.193.176	AS30036 Mediacom Communications Corp	`11.92ms` from Chicago, US
170.103.193.16	AS13656 THE WORTHINGTON STEEL COMPANY	`3.05ms` from Columbus, US
70.113.61.48	AS11427 Charter Communications Inc	`11.60ms` from Dallas, US
2.204.49.32	AS3209 Vodafone GmbH	`6.50ms` from Frankfurt am Main, DE
81.243.182.16	AS5432 Proximus NV	`4.96ms` from Gravelines, FR
123.191.200.208	AS4837 CHINA UNICOM China169 Backbone	`13.70ms` from Liaoyang, CN
109.181.69.128	AS2856 British Telecommunications PLC	`11.49ms` from London, GB
79.90.187.176	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`2.02ms` from Lyon, FR
87.23.122.0	AS3269 Telecom Italia S.p.A.	`2.50ms` from Milan, IT
73.37.135.192	AS7922 Comcast Cable Communications, LLC	`7.13ms` from Minneapolis, US
74.78.41.64	AS11351 Charter Communications Inc	`18.57ms` from New York City, US
111.169.77.80	AS2518 BIGLOBE Inc.	`2.76ms` from Osaka, JP
107.23.66.16	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
81.198.178.160	AS12578 SIA Tet	`0.71ms` from Riga, LV
124.221.109.208	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.71ms` from Shanghai, CN
162.158.88.144	AS13335 Cloudflare, Inc.	`0.55ms` from Singapore, SG
73.207.209.128	AS7922 Comcast Cable Communications, LLC	`5.17ms` from Atlanta, US
221.222.49.80	AS4808 China Unicom Beijing Province Network	`3.56ms` from Beijing, CN
117.203.149.128	AS9829 National Internet Backbone	`11.26ms` from Delhi, IN
52.58.78.64	AS16509 Amazon.com, Inc.	`0.16ms` from Frankfurt am Main, DE
176.148.105.128	AS5410 Bouygues Telecom SA	`4.72ms` from Marseille, FR
37.22.146.192	AS12389 PJSC Rostelecom	`8.67ms` from Novosibirsk, RU

Traceroute

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

traceroute -a -n -q1 -m4 133.3.172.101

traceroute to 133.3.172.101 (133.3.172.101): 4 hops max, 52 byte packets

1 [AS136258] 109.104.154.2 0.448 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On October 30th 2025

What are IP address ranges?

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