133.33.0.0/16

AS23615 · University of Shizuoka

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Summary

Country	Japan
Domain	nic.ad.jp
ASN	AS23615
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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
133.33.246.34	takepi.net	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
133.33.17.157	AS23615 University of Shizuoka	`4.28ms` from Tokyo, JP
133.33.90.20	AS23615 University of Shizuoka	`4.32ms` from Tokyo, JP
133.33.2.30	AS23615 University of Shizuoka	`4.32ms` from Tokyo, JP
133.33.89.1	AS23615 University of Shizuoka	`4.40ms` from Tokyo, JP
133.33.5.92	AS23615 University of Shizuoka	`4.30ms` from Tokyo, JP
133.33.73.244	AS23615 University of Shizuoka	`4.34ms` from Tokyo, JP
133.33.148.8	AS23615 University of Shizuoka	`4.20ms` from Tokyo, JP
133.33.1.31	AS23615 University of Shizuoka	`4.43ms` from Tokyo, JP
133.33.157.9	AS23615 University of Shizuoka	`4.25ms` from Tokyo, JP
133.33.25.105	AS23615 University of Shizuoka	`4.26ms` from Tokyo, JP
133.33.85.43	AS23615 University of Shizuoka	`4.30ms` from Tokyo, JP
133.33.33.39	AS23615 University of Shizuoka	`4.25ms` 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
128.143.66.240	AS225 University of Virginia	`3.12ms` from Ashburn, US
8.147.3.144	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.54ms` from Beijing, CN
120.233.64.240	AS9808 China Mobile Communications Group Co., Ltd.	`3.33ms` from Guangzhou, CN
113.170.140.64	AS45899 VNPT Corp	`5.36ms` from Ho Chi Minh City, VN
176.133.141.32	AS5410 Bouygues Telecom SA	`6.97ms` from Marseille, FR
80.72.220.240	AS62382 LLC KDV Grupp	`1.18ms` from Moscow, RU
172.253.197.240	AS15169 Google LLC	`0.55ms` from Mumbai, IN
81.67.183.176	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`14.61ms` from Paris, FR
18.176.149.64	AS16509 Amazon.com, Inc.	`0.13ms` from Tokyo, JP
114.185.22.16	AS4713 NTT DOCOMO BUSINESS,Inc.	`17.81ms` from Tokyo, JP
209.193.22.208	AS7782 Alaska Communications Systems Group, Inc.	`11.05ms` from Anchorage, US
94.68.69.16	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`9.08ms` from Athens, GR
2.200.198.112	AS3209 Vodafone GmbH	`5.48ms` from Duesseldorf, DE
87.78.89.48	AS8422 NetCologne Gesellschaft fur Telekommunikation mbH	`3.95ms` from Duesseldorf, DE
138.245.1.48	AS12816 Leibniz-Rechenzentrum	`9.51ms` from Frankfurt am Main, DE
223.235.165.64	AS24560 Bharti Airtel Ltd., Telemedia Services	`4.02ms` from Kolkata, IN
68.63.167.224	AS7922 Comcast Cable Communications, LLC	`13.48ms` from Murfreesboro, US
162.245.184.16	AS19318 Interserver, Inc	`0.90ms` from New York City, US
177.188.17.80	AS27699 TELEFÔNICA BRASIL S.A	`3.93ms` from Osasco, BR
217.181.213.16	AS8399 SEWAN SAS	`0.68ms` from Paris, FR
112.144.66.160	AS17858 LG POWERCOMM	`3.13ms` from Seoul, KR
61.79.58.64	AS4766 Korea Telecom	`6.35ms` from Seoul, KR
103.225.53.16	AS203020 HostRoyale Technologies Pvt Ltd	`0.19ms` from Sydney, AU
99.234.49.80	AS812 Rogers Communications Canada Inc.	`4.58ms` from Toronto, CA
61.53.190.208	AS4837 CHINA UNICOM China169 Backbone	`5.90ms` from Zhengzhou, CN

Traceroute

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

traceroute -a -n -q1 -f3 -m6 133.33.119.20

traceroute to 133.33.119.20 (133.33.119.20): 6 hops max, 52 byte packets

3 [AS749] 11.110.75.181 0.365 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Guangzhou, CN

On December 14th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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