133.27.0.0/16

AS38635 · Keio University

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Summary

Country	Japan
Domain	nic.ad.jp
ASN	AS38635
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
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.218.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	65,536
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.167.0.0/16	AS9371	SAKURA Internet 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
133.112.0.0/16	AS2522	Japan Network Information Center	65,536
133.110.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.237.0.0/16	AS23820	Rakuten Group, Inc.	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	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
133.242.0.0/16	AS7684	SAKURA Internet Inc.	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
133.232.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.130.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.186.128.0/17	AS45974	NHN Cloud Japan Corporation	32,768
133.32.0.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.165.128.0/18	AS2527	Sony Network Communications Inc.	16,384
133.186.64.0/18	AS131915	Hamamatsu Cable Television .Inc	16,384
133.247.0.0/18	AS131918	SHONAN CABLE NETWORK	16,384
133.165.192.0/18	AS17534	NSK Co.,Ltd.	16,384
133.149.192.0/18	AS2519	ARTERIA Networks Corporation	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
133.232.0.0/19	AS7682	DMG MORI Digital Co., LTD.	8,192
133.232.64.0/19	AS2514	INTERLINK Co.,LTD	8,192
133.32.224.0/19	AS2519	ARTERIA Networks Corporation	8,192
133.238.32.0/19	AS2497	IIJ Internet	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
133.186.0.0/20	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 12 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
133.27.4.220	obx.jp	3
133.27.5.80	wkwk.tv	3
133.27.170.5	wellcomp.org	1
133.27.18.35	orf-2022.jp	1
133.27.4.121	cr2.org	1
133.27.179.227	fab3d.cc	1
133.27.114.27	inxignia.org	1
133.27.180.222	tomokyo.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

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

IP Address	ASN	Details
133.27.171.1	AS38635 Keio University	`2.88ms` from Tokyo, JP
133.27.50.9	AS38635 Keio University	`2.74ms` from Tokyo, JP
133.27.108.9	AS38635 Keio University	`2.72ms` from Tokyo, JP
133.27.52.8	AS38635 Keio University	`2.82ms` from Tokyo, JP
133.27.243.143	AS38635 Keio University	`2.63ms` from Tokyo, JP
133.27.81.3	AS38635 Keio University	`2.61ms` from Tokyo, JP
133.27.46.1	AS38635 Keio University	`2.82ms` from Tokyo, JP
133.27.32.21	AS38635 Keio University	`2.62ms` from Tokyo, JP
133.27.92.2	AS38635 Keio University	`2.65ms` from Tokyo, JP
133.27.226.89	AS38635 Keio University	`2.76ms` from Tokyo, JP
133.27.44.3	AS38635 Keio University	`2.63ms` from Tokyo, JP
133.27.18.35	AS38635 Keio University	`2.72ms` from Tokyo, JP
133.27.188.230	AS38635 Keio University	`3.70ms` from Tokyo, JP
133.27.25.1	AS38635 Keio University	`2.89ms` from Tokyo, JP
133.27.48.8	AS38635 Keio University	`2.75ms` from Tokyo, JP
133.27.106.8	AS38635 Keio University	`2.79ms` from Tokyo, JP
133.27.173.193	AS38635 Keio University	`2.92ms` from Tokyo, JP
133.27.170.65	AS38635 Keio University	`2.87ms` from Tokyo, JP
133.27.172.225	AS38635 Keio University	`2.80ms` from Tokyo, JP
133.27.93.3	AS38635 Keio University	`2.67ms` from Tokyo, JP
133.27.91.2	AS38635 Keio University	`2.79ms` from Tokyo, JP
133.27.77.3	AS38635 Keio University	`2.73ms` from Tokyo, JP
133.27.19.116	AS38635 Keio University	`2.58ms` from Tokyo, JP
133.27.3.1	AS38635 Keio University	`2.74ms` from Tokyo, JP
133.27.135.243	AS38635 Keio University	`12.54ms` 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
94.67.117.48	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`9.64ms` from Athens, GR
73.5.174.224	AS7922 Comcast Cable Communications, LLC	`8.23ms` from Minneapolis, US
73.196.67.240	AS7922 Comcast Cable Communications, LLC	`8.75ms` from Piscataway, US
134.199.236.192	AS14061 DigitalOcean, LLC	`0.30ms` from Santa Clara, US
32.223.171.0	AS46690 Southern New England Telephone Company and SNET America, Inc.	`4.24ms` from Secaucus, US
183.109.59.160	AS4766 Korea Telecom	`1.33ms` from Seoul, KR
203.246.166.16	AS9286 KINX	`0.44ms` from Seoul, KR
117.55.158.16	AS9770 LG HelloVision Corp.	`5.51ms` from Seoul, KR
2.70.28.96	AS44034 Hi3G Access AB	`11.04ms` from Stockholm, SE
13.55.42.176	AS16509 Amazon.com, Inc.	`0.10ms` from Sydney, AU
106.1.190.144	AS38841 kbro CO. Ltd.	`5.62ms` from Taipei, TW
221.71.200.224	AS17676 SoftBank Corp.	`3.60ms` from Tokyo, JP
39.155.37.240	AS9808 China Mobile Communications Group Co., Ltd.	`11.28ms` from Beijing, CN
115.99.239.128	AS17488 Hathway IP Over Cable Internet	`1.15ms` from Bengaluru, IN
45.179.131.16	AS264996 SERVLINK TELECOM LTDA - ME	`10.70ms` from Fortaleza, BR
6.15.50.80	AS668 United States Department of Defense (DoD)	`1.80ms` from Los Angeles, US
176.206.34.80	AS1267 WIND TRE S.P.A.	`7.01ms` from Milan, IT
60.208.213.240	AS4837 CHINA UNICOM China169 Backbone	`5.88ms` from Qingdao, CN
75.39.164.128	AS7018 AT&T Enterprises, LLC	`8.10ms` from Redding, US
52.72.177.80	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
186.233.67.0	AS262781 RADIOBR INTERNET LTDA	`5.17ms` from Rio de Janeiro, BR
211.115.156.64	AS4766 Korea Telecom	`6.49ms` from Seoul, KR
163.152.84.32	AS9452 Korea University	`2.86ms` from Seoul, KR
61.100.60.80	AS9848 SEJONG NETWORKS	`0.97ms` from Seoul, KR
1.168.124.208	AS3462 Data Communication Business Group	`1.32ms` from Taichung, TW

Traceroute

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

traceroute -a -n -q1 -m11 133.27.150.17

traceroute to 133.27.150.17 (133.27.150.17): 11 hops max, 52 byte packets

1 [AS132372] 103.161.133.253 0.626 ms

2 *

3 *

4 [] 210.171.224.150 85.981 ms

5 [AS2907] 150.99.11.32 85.656 ms

6 [AS2907] 150.99.192.206 87.134 ms

7 [AS38635] 131.113.1.150 88.621 ms

8 [AS38635] 131.113.1.174 89.871 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Sepang, MY

On December 14th 2025

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