133.236.0.0/16

AS2497 · Internet Initiative Japan Inc.

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Summary

Country	Japan
Domain	iij.ad.jp
ASN	AS2497
Registry	JPNIC
ID	IIJ-CIDR-BLK-JP

WHOIS Details

inetnum:        133.236.0.0 - 133.236.255.255
netname:        IIJ-CIDR-BLK-JP
descr:          Internet Initiative Japan Inc.
remarks:        Email address for spam or abuse complaints : abuse-contact@iij.ad.jp
country:        JP
admin-c:        JP00010080
tech-c:         JP00010080
last-modified:  2014-08-01T02:13:21Z
remarks:        This information has been partially mirrored by APNIC from
remarks:        JPNIC. To obtain more specific information, please use the
remarks:        JPNIC WHOIS Gateway at
remarks:        http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks:        whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks:        defaults to Japanese output, use the /e switch for English
remarks:        output)
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 133.0.0.0/8

Range	ASN	Company	Num of IPs
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	65,536
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.114.0.0/16	AS2527	Sony Network Communications Inc.	65,536
133.112.0.0/16	AS2522	Japan Network Information Center	65,536
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.237.0.0/16	AS23820	Rakuten Group, Inc.	65,536
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.142.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.110.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	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
133.175.0.0/16	AS2519	ARTERIA Networks Corporation	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.155.128.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	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
133.130.128.0/17	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
133.232.0.0/19	AS7682	DMG MORI Digital 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
133.226.96.0/19	AS9997	CTY Co.,Ltd.	8,192
133.226.64.0/19	AS7524	ITEC Hankyu Hanshin 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
133.149.80.0/20	AS9354	Himawari Network Inc.	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

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
133.236.3.157	0x00.info	1
133.236.48.2	anritsu.co.jp	1

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

2,260 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
133.236.152.64	AS2497 Internet Initiative Japan Inc.	`30.73ms` from Osaka, JP
133.236.185.162	AS2497 Internet Initiative Japan Inc.	`25.81ms` from Osaka, JP
133.236.234.199	AS2497 Internet Initiative Japan Inc.	`23.24ms` from Osaka, JP
133.236.192.65	AS2497 Internet Initiative Japan Inc.	`18.42ms` from Tokyo, JP
133.236.212.78	AS2497 Internet Initiative Japan Inc.	`33.09ms` from Tokyo, JP
133.236.137.77	AS2497 Internet Initiative Japan Inc.	`23.80ms` from Osaka, JP
133.236.246.215	AS2497 Internet Initiative Japan Inc.	`19.29ms` from Osaka, JP
133.236.45.1	AS2497 Internet Initiative Japan Inc.	`0.35ms` from Osaka, JP
133.236.245.80	AS2497 Internet Initiative Japan Inc.	`22.96ms` from Osaka, JP
133.236.237.115	AS2497 Internet Initiative Japan Inc.	`24.45ms` from Osaka, JP
133.236.211.69	AS2497 Internet Initiative Japan Inc.	`18.98ms` from Tokyo, JP
133.236.186.211	AS2497 Internet Initiative Japan Inc.	`23.89ms` from Osaka, JP
133.236.168.202	AS2497 Internet Initiative Japan Inc.	`31.84ms` from Osaka, JP
133.236.253.107	AS2497 Internet Initiative Japan Inc.	`25.95ms` from Osaka, JP
133.236.228.246	AS2497 Internet Initiative Japan Inc.	`29.72ms` from Osaka, JP
133.236.149.52	AS2497 Internet Initiative Japan Inc.	`26.06ms` from Osaka, JP
133.236.243.30	AS2497 Internet Initiative Japan Inc.	`19.85ms` from Osaka, JP
133.236.158.146	AS2497 Internet Initiative Japan Inc.	`23.77ms` from Osaka, JP
133.236.203.153	AS2497 Internet Initiative Japan Inc.	`28.96ms` from Tokyo, JP
133.236.209.156	AS2497 Internet Initiative Japan Inc.	`23.46ms` from Tokyo, JP
133.236.167.106	AS2497 Internet Initiative Japan Inc.	`19.64ms` from Osaka, JP
133.236.240.203	AS2497 Internet Initiative Japan Inc.	`23.70ms` from Osaka, JP
133.236.175.25	AS2497 Internet Initiative Japan Inc.	`25.19ms` from Osaka, JP
133.236.147.51	AS2497 Internet Initiative Japan Inc.	`25.03ms` from Osaka, JP
133.236.213.64	AS2497 Internet Initiative Japan Inc.	`26.39ms` 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
87.239.59.240	AS29148 SURANY.NET s.r.o.	`2.77ms` from Bratislava, SK
97.84.239.80	AS20115 Charter Communications LLC	`15.78ms` from Chicago, US
113.18.121.208	AS9808 China Mobile Communications Group Co., Ltd.	`4.26ms` from Fuzhou, CN
107.126.221.16	AS20057 AT&T Enterprises, LLC	`11.50ms` from Houston, US
60.143.84.128	AS17676 SoftBank Corp.	`3.86ms` from Osaka, JP
35.171.144.160	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
49.174.153.224	AS17858 LG POWERCOMM	`2.47ms` from Seoul, KR
115.136.248.16	AS17858 LG POWERCOMM	`5.05ms` from Seoul, KR
104.196.237.48	AS396982 Google LLC	`0.14ms` from The Dalles, US
188.157.236.64	AS5483 Magyar Telekom Plc.	`5.16ms` from Budapest, HU
39.170.170.176	AS56041 China Mobile communications corporation	`5.20ms` from Hangzhou, CN
86.149.237.128	AS2856 British Telecommunications PLC	`1.70ms` from London, GB
87.24.139.0	AS3269 Telecom Italia S.p.A.	`5.49ms` from Milan, IT
60.143.123.144	AS17676 SoftBank Corp.	`4.04ms` from Osaka, JP
97.74.104.0	AS44273 Host Europe GmbH	`0.14ms` from San Jose, US
107.142.109.112	AS7018 AT&T Enterprises, LLC	`3.54ms` from San Jose, US
69.130.190.16	AS4181 TDS TELECOM	`10.25ms` from Seattle, US
20.194.109.32	AS8075 Microsoft Corporation	`0.58ms` from Seoul, KR
70.50.173.32	AS577 Bell Canada	`3.46ms` from Toronto, CA
196.184.208.32	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`15.88ms` from Tunis, TN
5.143.72.80	AS12389 PJSC Rostelecom	`1.05ms` from Vladivostok, RU
18.244.99.224	AS16509 Amazon.com, Inc.	`0.07ms` from Warsaw, PL
94.67.222.192	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`9.30ms` from Athens, GR
138.74.198.80	AS15108 Allo Communications LLC	`1.17ms` from Denver, US
34.250.222.64	AS16509 Amazon.com, Inc.	`0.16ms` from Dublin, IE

Traceroute

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

traceroute -a -n -q1 -f4 -m9 133.236.63.99

traceroute to 133.236.63.99 (133.236.63.99): 9 hops max, 52 byte packets

4 [AS2497] 210.130.133.58 82.686 ms

5 [AS2497] 58.138.83.190 138.244 ms

6 [AS2497] 58.138.88.121 234.289 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Edinburgh, GB

On November 14th 2025

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