133.1.0.0/16

AS4730 · Osaka University

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Summary

Country	Japan
Domain	nic.ad.jp
ASN	AS4730
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:         [email protected]
abuse-mailbox:  [email protected]
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
nic-hdl:        AJ382-AP
remarks:        Generated from irt object IRT-JPNIC-JP
remarks:        [email protected] was validated on 2024-11-27
abuse-mailbox:  [email protected]
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:         [email protected]
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
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.114.0.0/16	AS2527	Sony Network Communications Inc.	65,536
133.236.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.142.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.175.0.0/16	AS2519	ARTERIA Networks Corporation	65,536
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	65,536
133.167.0.0/16	AS9371	SAKURA Internet Inc.	65,536
133.112.0.0/16	AS2522	Japan Network Information Center	65,536
133.218.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.110.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	65,536
133.155.128.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.130.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.155.0.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.186.128.0/17	AS45974	NHN Cloud Japan Corporation	32,768
133.232.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.165.192.0/18	AS17534	NSK Co.,Ltd.	16,384
133.32.0.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.247.0.0/18	AS131918	SHONAN CABLE NETWORK	16,384
133.165.128.0/18	AS2527	Sony Network Communications Inc.	16,384
133.149.192.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.186.64.0/18	AS131915	Hamamatsu Cable Television .Inc	16,384
133.238.64.0/18	AS131958	TAMA CABLE NETWORK CO., LTD.	16,384
133.149.128.0/18	AS4677	Marubeni OKI Network Solutions Inc.	16,384
133.232.64.0/19	AS2514	INTERLINK Co.,LTD	8,192
133.226.96.0/19	AS9997	CTY Co.,Ltd.	8,192
133.32.224.0/19	AS2519	ARTERIA Networks Corporation	8,192
133.238.32.0/19	AS2497	IIJ Internet	8,192
133.226.64.0/19	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	8,192
133.232.0.0/19	AS7682	DMG MORI Digital Co., LTD.	8,192
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
133.232.96.0/20	AS2514	INTERLINK Co.,LTD	4,096
133.226.0.0/20	AS131934	ICC Corporation	4,096
133.238.16.0/20	AS2497	IIJ Internet	4,096
133.32.128.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.226.144.0/20	AS24279	SENDAI CATV CO.,LTD.	4,096
133.117.64.0/20	AS58791	GMO Internet Group, Inc.	4,096
133.226.16.0/20	AS23624	Chukai Television Co,.Ltd.	4,096
133.226.160.0/20	AS17958	Kasaoka Cable Vision LIMITED	4,096
133.117.80.0/20	AS18094	Tokyo Cable Network.,Inc.	4,096
133.88.48.0/20	AS23778	IMIZU CABLE NETWORK CO.,LTD.	4,096
133.88.32.0/20	AS18281	Chitahanto Cable Network Corp.	4,096
133.232.112.0/20	AS2514	INTERLINK Co.,LTD	4,096

Hosted domains

There are 15 domain names hosted across 13 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
133.1.138.1	osaka-u.ac.jp	3
133.1.244.42	mljournalism.com	1
133.1.138.210	yamasakiseiji.com	1
133.1.163.75	ou1.jp	1
133.1.158.160	pdbj.org	1
133.1.138.244	hanna-nw.org	1
133.1.138.171	cnt-osaka.com	1
133.1.139.33	kanemoto.tech	1
133.1.144.181	boar.osaka	1
133.1.198.212	hinoki-project.org	1
133.1.49.9	ifrec-sign-winterschool.org	1
133.1.186.7	awaji-forum.com	1
133.1.175.75	jinka50.jp	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

2,468 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
133.1.65.170	AS4730 Osaka University	`0.91ms` from Osaka, JP
133.1.3.144	AS4730 Osaka University	`1.67ms` from Osaka, JP
133.1.34.120	AS4730 Osaka University	`1.62ms` from Osaka, JP
133.1.66.179	AS4730 Osaka University	`1.14ms` from Osaka, JP
133.1.48.103	AS4730 Osaka University	`1.66ms` from Osaka, JP
133.1.0.12	AS4730 Osaka University	`1.11ms` from Osaka, JP
133.1.5.213	AS4730 Osaka University	`1.67ms` from Osaka, JP
133.1.55.112	AS4730 Osaka University	`1.81ms` from Osaka, JP
133.1.35.80	AS4730 Osaka University	`2.05ms` from Osaka, JP
133.1.60.119	AS4730 Osaka University	`2.03ms` from Osaka, JP
133.1.59.146	AS4730 Osaka University	`1.75ms` from Osaka, JP
133.1.28.186	AS4730 Osaka University	`1.71ms` from Osaka, JP
133.1.68.13	AS4730 Osaka University	`1.49ms` from Osaka, JP
133.1.54.32	AS4730 Osaka University	`1.94ms` from Osaka, JP
133.1.2.22	AS4730 Osaka University	`1.88ms` from Osaka, JP
133.1.1.5	AS4730 Osaka University	`1.55ms` from Osaka, JP
133.1.18.14	AS4730 Osaka University	`1.95ms` from Osaka, JP
133.1.43.11	AS4730 Osaka University	`1.73ms` from Osaka, JP
133.1.4.127	AS4730 Osaka University	`1.64ms` from Osaka, JP
133.1.10.162	AS4730 Osaka University	`1.14ms` from Osaka, JP
133.1.30.51	AS4730 Osaka University	`1.85ms` from Osaka, JP
133.1.62.3	AS4730 Osaka University	`2.05ms` from Osaka, JP
133.1.52.2	AS4730 Osaka University	`1.81ms` from Osaka, JP
133.1.23.41	AS4730 Osaka University	`1.66ms` from Osaka, JP
133.1.51.172	AS4730 Osaka University	`1.64ms` 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
2.50.54.224	AS5384 Emirates Internet	`4.25ms` from Al Fujairah City, AE
98.244.106.192	AS7922 Comcast Cable Communications, LLC	`10.15ms` from Ashburn, US
52.190.32.16	AS8075 Microsoft Corporation	`0.60ms` from Ashburn, US
70.72.45.48	AS6327 Shaw Communications	`9.12ms` from Calgary, CA
122.236.228.64	AS4134 CHINANET-BACKBONE	`6.50ms` from Hangzhou, CN
13.41.134.192	AS16509 Amazon.com, Inc.	`0.21ms` from London, GB
5.81.81.48	AS2856 British Telecommunications PLC	`4.38ms` from London, GB
109.9.73.224	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`12.55ms` from Lyon, FR
95.245.208.192	AS3269 Telecom Italia S.p.A.	`2.01ms` from Milan, IT
104.196.116.64	AS396982 Google LLC	`0.14ms` from Moncks Corner, US
109.189.48.144	AS2119 Telenor Norge AS	`6.00ms` from Oslo, NO
37.112.32.64	AS57378 JSC ER-Telecom Holding	`17.23ms` from Samara, RU
191.189.80.240	AS28573 Claro NXT Telecomunicacoes Ltda	`9.28ms` from Sao Jose do Rio Preto, BR
110.12.58.240	AS9318 SK Broadband Co Ltd	`1.69ms` from Seoul, KR
213.240.37.160	AS8771 YUnet International d.o.o.	`2.32ms` from Belgrade, RS
34.31.188.192	AS396982 Google LLC	`0.10ms` from Council Bluffs, US
159.75.127.224	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.13ms` from Guangzhou, CN
170.168.111.96	AS44559 IT HOSTLINE LTD	`0.34ms` from Istanbul, TR
34.26.218.192	AS396982 Google LLC	`0.15ms` from Moncks Corner, US
176.193.104.192	AS12714 PJSC MegaFon	`2.41ms` from Moscow, RU
58.183.248.176	AS18144 Enecom,Inc.	`7.99ms` from Osaka, JP
34.237.148.16	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
100.27.172.176	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
1.98.138.208	AS4766 Korea Telecom	`1.74ms` from Seoul, KR
222.109.194.240	AS4766 Korea Telecom	`1.36ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f5 133.1.0.12

traceroute to 133.1.0.12 (133.1.0.12): 64 hops max, 52 byte packets

5 [] 218.100.9.89 0.25 ms

6 [] 218.100.9.134 0.433 ms

7 [AS2907] 150.99.18.90 0.491 ms

8 [AS4730] 133.1.0.12 1.174 ms

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On December 20th 2025

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