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 : [email protected]
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
133.237.0.0/16	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
133.142.0.0/16	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 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

1,427 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
133.236.251.61	AS2497 Internet Initiative Japan Inc.	`30.48ms` from Osaka, JP
133.236.221.3	AS2497 Internet Initiative Japan Inc.	`21.31ms` from Tokyo, JP
133.236.237.45	AS2497 Internet Initiative Japan Inc.	`33.32ms` from Osaka, JP
133.236.206.142	AS2497 Internet Initiative Japan Inc.	`27.64ms` from Tokyo, JP
133.236.197.85	AS2497 Internet Initiative Japan Inc.	`28.49ms` from Tokyo, JP
133.236.192.133	AS2497 Internet Initiative Japan Inc.	`27.33ms` from Tokyo, JP
133.236.231.179	AS2497 Internet Initiative Japan Inc.	`32.89ms` from Osaka, JP
133.236.252.23	AS2497 Internet Initiative Japan Inc.	`27.92ms` from Osaka, JP
133.236.248.141	AS2497 Internet Initiative Japan Inc.	`26.49ms` from Osaka, JP
133.236.200.141	AS2497 Internet Initiative Japan Inc.	`22.36ms` from Tokyo, JP
133.236.238.35	AS2497 Internet Initiative Japan Inc.	`33.96ms` from Tokyo, JP
133.236.245.122	AS2497 Internet Initiative Japan Inc.	`27.08ms` from Osaka, JP
133.236.216.254	AS2497 Internet Initiative Japan Inc.	`22.32ms` from Tokyo, JP
133.236.243.184	AS2497 Internet Initiative Japan Inc.	`29.46ms` from Osaka, JP
133.236.211.15	AS2497 Internet Initiative Japan Inc.	`27.67ms` from Tokyo, JP
133.236.229.253	AS2497 Internet Initiative Japan Inc.	`24.80ms` from Osaka, JP
133.236.228.4	AS2497 Internet Initiative Japan Inc.	`24.32ms` from Osaka, JP
133.236.220.151	AS2497 Internet Initiative Japan Inc.	`29.55ms` from Tokyo, JP
133.236.241.80	AS2497 Internet Initiative Japan Inc.	`24.48ms` from Osaka, JP
133.236.250.70	AS2497 Internet Initiative Japan Inc.	`25.57ms` from Osaka, JP
133.236.225.159	AS2497 Internet Initiative Japan Inc.	`25.97ms` from Osaka, JP
133.236.209.34	AS2497 Internet Initiative Japan Inc.	`20.96ms` from Tokyo, JP
133.236.44.249	AS2497 Internet Initiative Japan Inc.	`0.92ms` from Tokyo, JP
133.236.45.1	AS2497 Internet Initiative Japan Inc.	`0.37ms` from Osaka, JP
133.236.208.14	AS2497 Internet Initiative Japan Inc.	`26.92ms` 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
81.207.217.240	AS1136 KPN B.V.	`2.60ms` from Amsterdam, NL
96.8.114.32	AS36352 HostPapa	`0.40ms` from Dallas, US
48.216.16.0	AS8075 Microsoft Corporation	`0.79ms` from Dallas, US
185.220.247.128	AS12637 SEEWEB s.r.l.	`2.12ms` from Lugano, CH
79.14.112.0	AS3269 Telecom Italia S.p.A.	`4.13ms` from Milan, IT
125.106.107.32	AS4134 CHINANET-BACKBONE	`8.78ms` from Nanchang, CN
2.62.228.208	AS12389 PJSC Rostelecom	`7.56ms` from Novosibirsk, RU
23.42.225.160	AS16625 Akamai Technologies, Inc.	`0.06ms` from Perth, AU
13.83.167.192	AS8075 Microsoft Corporation	`0.61ms` from San Jose, US
115.136.130.224	AS17858 LG POWERCOMM	`3.00ms` from Seoul, KR
115.160.41.144	AS9694 Seokyung Cable Television Co.. Ltd.	`6.92ms` from Seoul, KR
51.79.198.192	AS16276 OVH SAS	`0.20ms` from Singapore, SG
173.79.197.96	AS701 Verizon Business	`1.93ms` from Ashburn, US
121.27.248.144	AS4837 CHINA UNICOM China169 Backbone	`8.53ms` from Beijing, CN
44.230.255.176	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
86.123.96.160	AS8708 DIGI ROMANIA S.A.	`0.92ms` from Bucharest, RO
181.3.209.32	AS7303 Telecom Argentina S.A.	`10.56ms` from Buenos Aires, AR
105.156.253.176	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`8.25ms` from Casablanca, MA
176.53.167.64	AS397373 H4Y Technologies LLC	`0.11ms` from Charlotte, US
69.231.232.128	AS7018 AT&T Enterprises, LLC	`2.82ms` from Chicago, US
79.171.76.64	AS44212 Adelphi Net1 Ltd	`3.08ms` from Dublin, IE
187.49.178.16	AS264562 PBR SERVICOS DE TELECOMUNICACOES LTDA	`0.33ms` from Fortaleza, BR
222.169.73.16	AS4134 CHINANET-BACKBONE	`9.99ms` from Harbin, CN
115.76.178.96	AS7552 Viettel Group	`1.07ms` from Ho Chi Minh City, VN
125.165.198.112	AS7713 PT Telekomunikasi Indonesia	`9.12ms` from Jakarta, ID

Traceroute

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

traceroute -a -n -q1 -f3 133.236.203.83

traceroute to 133.236.203.83 (133.236.203.83): 64 hops max, 52 byte packets

3 [AS3356] 171.75.9.125 38.919 ms

4 [AS2497] 210.130.133.58 38.979 ms

5 [AS2497] 58.138.83.182 180.458 ms

6 [AS2497] 58.138.88.105 304.801 ms

7 [AS2497] 133.142.196.50 304.407 ms

8 *

9 [AS2497] 133.236.203.83 394.151 ms

Measurement taken from

IPinfo ProbeNet in Helsinki, FI

On January 30th 2026

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