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:         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
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.114.0.0/16	AS2527	Sony Network Communications Inc.	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	65,536
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.218.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.142.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.167.0.0/16	AS9371	SAKURA Internet Inc.	65,536
133.236.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.110.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.175.0.0/16	AS2519	ARTERIA Networks Corporation	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	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
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.237.0.0/16	AS23820	Rakuten Group, 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 Cloud Japan Corporation	32,768
133.130.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.232.128.0/17	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 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
133.1.144.181	boar.osaka	1
133.1.138.244	hanna-nw.org	1
133.1.175.75	jinka50.jp	1
133.1.186.7	awaji-forum.com	1
133.1.158.160	pdbj.org	1
133.1.49.9	ifrec-sign-winterschool.org	1
133.1.163.75	ou1.jp	1
133.1.198.212	hinoki-project.org	1
133.1.139.33	kanemoto.tech	1
133.1.138.171	cnt-osaka.com	1
133.1.138.210	yamasakiseiji.com	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

2,448 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
133.1.58.2	AS4730 Osaka University	`1.69ms` from Osaka, JP
133.1.43.29	AS4730 Osaka University	`1.76ms` from Osaka, JP
133.1.39.121	AS4730 Osaka University	`1.97ms` from Osaka, JP
133.1.1.85	AS4730 Osaka University	`1.49ms` from Osaka, JP
133.1.73.10	AS4730 Osaka University	`1.82ms` from Osaka, JP
133.1.6.10	AS4730 Osaka University	`3.01ms` from Osaka, JP
133.1.28.1	AS4730 Osaka University	`1.78ms` from Osaka, JP
133.1.54.180	AS4730 Osaka University	`1.91ms` from Osaka, JP
133.1.16.99	AS4730 Osaka University	`1.76ms` from Osaka, JP
133.1.2.12	AS4730 Osaka University	`1.85ms` from Osaka, JP
133.1.52.2	AS4730 Osaka University	`1.93ms` from Osaka, JP
133.1.46.48	AS4730 Osaka University	`1.86ms` from Osaka, JP
133.1.56.15	AS4730 Osaka University	`1.72ms` from Osaka, JP
133.1.60.107	AS4730 Osaka University	`1.74ms` from Osaka, JP
133.1.21.9	AS4730 Osaka University	`1.64ms` from Osaka, JP
133.1.10.162	AS4730 Osaka University	`1.11ms` from Osaka, JP
133.1.68.13	AS4730 Osaka University	`1.48ms` from Osaka, JP
133.1.18.13	AS4730 Osaka University	`1.79ms` from Osaka, JP
133.1.24.41	AS4730 Osaka University	`1.85ms` from Osaka, JP
133.1.47.10	AS4730 Osaka University	`1.70ms` from Osaka, JP
133.1.29.207	AS4730 Osaka University	`1.97ms` from Osaka, JP
133.1.32.240	AS4730 Osaka University	`2.01ms` from Osaka, JP
133.1.48.79	AS4730 Osaka University	`1.50ms` from Osaka, JP
133.1.9.77	AS4730 Osaka University	`1.52ms` from Osaka, JP
133.1.63.203	AS4730 Osaka University	`1.71ms` 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
1.0.187.192	AS23969 TOT Public Company Limited	`1.34ms` from Bangkok, TH
86.123.171.0	AS8708 DIGI ROMANIA S.A.	`2.31ms` from Bucharest, RO
34.9.234.208	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
34.28.58.80	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
112.79.38.16	AS38266 Vodafone Idea Ltd	`5.80ms` from Delhi, IN
3.67.88.192	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
83.151.196.240	AS198781 Connect Managed Services (UK) Limited	`0.27ms` from Frankfurt am Main, DE
47.114.214.240	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.11ms` from Hangzhou, CN
113.225.212.0	AS4837 CHINA UNICOM China169 Backbone	`8.64ms` from Liaoyang, CN
18.130.178.144	AS16509 Amazon.com, Inc.	`0.13ms` from London, GB
92.189.19.240	AS12479 Orange Espagne SA	`15.83ms` from Madrid, ES
13.233.45.64	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
180.9.181.240	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.35ms` from Osaka, JP
181.178.249.32	AS11556 Cable & Wireless Panama	`1.80ms` from Panama, PA
184.73.169.144	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
34.197.192.192	AS14618 Amazon.com, Inc.	`0.15ms` from Reston, US
151.28.158.208	AS1267 WIND TRE S.P.A.	`4.14ms` from Rome, IT
126.11.215.128	AS17676 SoftBank Corp.	`2.93ms` from Tokyo, JP
94.68.80.48	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`14.46ms` from Athens, GR
34.218.207.96	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
45.36.200.64	AS11426 Charter Communications Inc	`11.96ms` from Charlotte, US
103.111.224.192	AS137526 Plusnet Inc	`4.63ms` from Dhaka, BD
80.221.252.32	AS1759 Telia Finland Oyj	`8.33ms` from Helsinki, FI
98.172.140.80	AS22773 Cox Communications Inc.	`5.13ms` from Kansas City, US
207.32.17.64	AS5056 Aureon Network Services	`5.33ms` from Kansas City, US

Traceroute

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

traceroute -a -n -q1 -f5 -m12 133.1.12.7

traceroute to 133.1.12.7 (133.1.12.7): 12 hops max, 52 byte packets

5 [] 210.173.184.25 0.726 ms

6 [AS2907] 150.99.18.90 1.117 ms

7 [AS4730] 133.1.0.11 1.797 ms

8 [AS4730] 133.1.0.11 1.953 ms

9 [AS4730] 133.1.10.34 2.266 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On November 14th 2025

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