1. All IP Ranges
  2. 133.0.0.0/8
  3. 133.20.0.0/16
  4. AS2907  | 133.20.0.0/16

133.20.0.0/16

AS2907  ·  Research Organization of Information and Systems, National Institute of Informatics

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Summary

Country Japan
Domain nic.ad.jp
ASN AS2907
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
133.237.0.0/16 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 are 7 domain names hosted across 7 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
133.20.119.105 abe-econ.org 1
133.20.16.174 dendai.ac.jp 1
133.20.58.51 dendaijin.com 1
133.20.156.171 mitsuboshibank.com 1
133.20.16.173 dendai.ed.jp 1
133.20.58.171 monocrocus.com 1
133.20.188.144 higlab.net 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

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

IP Address ASN Details
133.20.182.138 AS2907 Research Organization of Information and Systems, National Institute of Informatics 1.91ms from Tokyo, JP
133.20.191.254 AS2907 Research Organization of Information and Systems, National Institute of Informatics 2.40ms from Tokyo, JP
133.20.137.254 AS2907 Research Organization of Information and Systems, National Institute of Informatics 2.48ms from Tokyo, JP
133.20.16.66 AS2907 Research Organization of Information and Systems, National Institute of Informatics 1.93ms from Tokyo, JP
133.20.96.138 AS2907 Research Organization of Information and Systems, National Institute of Informatics 1.98ms from Tokyo, JP
133.20.117.211 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.27ms from Tokyo, JP
133.20.52.66 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.39ms from Tokyo, JP
133.20.56.199 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.28ms from Tokyo, JP
133.20.82.254 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.73ms from Tokyo, JP
133.20.81.254 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.67ms from Tokyo, JP
133.20.85.254 AS2907 Research Organization of Information and Systems, National Institute of Informatics 2.21ms from Tokyo, JP
133.20.83.126 AS2907 Research Organization of Information and Systems, National Institute of Informatics 5.00ms from Tokyo, JP
133.20.156.254 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.60ms from Tokyo, JP
133.20.59.32 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.54ms from Tokyo, JP
133.20.51.252 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.32ms from Tokyo, JP
133.20.195.130 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.83ms from Tokyo, JP
133.20.45.251 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.41ms from Tokyo, JP
133.20.130.211 AS2907 Research Organization of Information and Systems, National Institute of Informatics 2.32ms from Tokyo, JP
133.20.46.193 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.33ms from Tokyo, JP
133.20.110.221 AS2907 Research Organization of Information and Systems, National Institute of Informatics 2.47ms from Tokyo, JP
133.20.225.225 AS2907 Research Organization of Information and Systems, National Institute of Informatics 2.80ms from Tokyo, JP
133.20.57.13 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.59ms from Tokyo, JP
133.20.254.11 AS2907 Research Organization of Information and Systems, National Institute of Informatics 2.06ms from Tokyo, JP
133.20.17.161 AS2907 Research Organization of Information and Systems, National Institute of Informatics 1.69ms from Tokyo, JP
133.20.188.117 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.32ms 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
77.161.170.16 AS1136 KPN B.V. 1.19ms from Amsterdam, NL
117.251.182.64 AS9829 National Internet Backbone 10.94ms from Bengaluru, IN
123.145.117.224 AS4837 CHINA UNICOM China169 Backbone 2.54ms from Chongqing, CN
60.16.113.0 AS4837 CHINA UNICOM China169 Backbone 13.82ms from Dalian, CN
123.191.177.208 AS4837 CHINA UNICOM China169 Backbone 14.73ms from Liaoyang, CN
95.147.4.128 AS2856 British Telecommunications PLC 5.47ms from London, GB
50.158.175.176 AS22773 Cox Communications Inc. 9.55ms from Los Angeles, US
87.30.182.0 AS3269 Telecom Italia S.p.A. 8.53ms from Milan, IT
180.196.25.128 AS18126 Chubu Telecommunications Company, Inc. 4.51ms from Osaka, JP
14.12.168.0 AS2516 KDDI CORPORATION 14.26ms from Osaka, JP
76.147.71.80 AS7922 Comcast Cable Communications, LLC 14.33ms from Seattle, US
119.17.108.0 AS23563 SK Broadband Co Ltd 2.79ms from Seoul, KR
36.236.94.128 AS3462 Data Communication Business Group 4.65ms from Taichung, TW
122.220.164.208 AS17506 ARTERIA Networks Corporation 0.43ms from Tokyo, JP
133.201.31.64 AS2518 BIGLOBE Inc. 3.86ms from Tokyo, JP
109.231.59.0 AS34525 KOBA Sp. z o.o. 2.55ms from Warsaw, PL
77.160.191.176 AS1136 KPN B.V. 2.47ms from Amsterdam, NL
68.43.163.0 AS7922 Comcast Cable Communications, LLC 8.55ms from Flint, US
183.240.83.48 AS9808 China Mobile Communications Group Co., Ltd. 11.46ms from Guangzhou, CN
51.118.35.240 AS16509 Amazon.com, Inc. 1.06ms from Milan, IT
50.116.68.80 AS31898 Oracle Corporation 0.14ms from Phoenix, US
151.53.146.64 AS1267 WIND TRE S.P.A. 6.32ms from Rome, IT
219.249.123.208 AS9318 SK Broadband Co Ltd 7.35ms from Seoul, KR
170.133.185.96 AS13445 Cisco Webex LLC 0.31ms from Sydney, AU
61.163.148.32 AS4837 CHINA UNICOM China169 Backbone 1.84ms 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 -f4 -m8 133.20.220.81
traceroute to 133.20.220.81 (133.20.220.81): 8 hops max, 52 byte packets
4 [] 101.203.89.206 0.976 ms
5 [AS2907] 150.99.9.124 2.164 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Tokyo, JP
On

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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.

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