117.20.72.0/22

AS23639 · NTT Bizlink, Inc.

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Summary

Country	Japan
Domain	ntt.com
ASN	AS23639
Parent Range	117.20.72.0/21
Registry	APNIC
ID	NTT-BIZLINK

WHOIS Details

inetnum:        117.20.72.0 - 117.20.79.255
netname:        ntt-bizlink
descr:          Internet Data Center
descr:          NTT Bizlink, Inc.
descr:          Tokyo, Japan
country:        JP
org:            ORG-NBI2-AP
admin-c:        KO185-AP
tech-c:         KO185-AP
abuse-c:        AN768-AP
status:         ASSIGNED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JP-BIZLINK
mnt-routes:     MAINT-JP-BIZLINK
mnt-irt:        IRT-NTT-BIZLINK-JP
last-modified:  2024-06-19T01:43:17Z
source:         APNIC

irt:            IRT-NTT-BIZLINK-JP
address:        Sumitomo Korakuen Bldg. 1-4-1
address:        Koishikawa
address:        Bunkyo-ku, Tokyo Japan
address:        112-0002
e-mail:         biz-net_admin@ntt.com
abuse-mailbox:  biz-net_admin@ntt.com
admin-c:        KO185-AP
tech-c:         KO185-AP
auth:           # Filtered
remarks:        biz-net_admin@ntt.com was validated on 2025-12-24
mnt-by:         MAINT-JP-BIZLINK
last-modified:  2025-12-24T00:19:48Z
source:         APNIC

organisation:   ORG-NBI2-AP
org-name:       NTT BizLink, Inc.
org-type:       LIR
country:        JP
address:        Sumitomo Korakuen Bldg.
address:        1-4-1
address:        Koishikawa Bunkyo-ku
phone:          +81-3-6381-2680
fax-no:         +81-3-5803-4401
e-mail:         biz-net_admin@ntt.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-05-09T12:56:11Z
source:         APNIC

role:           ABUSE NTTBIZLINKJP
country:        ZZ
address:        Sumitomo Korakuen Bldg. 1-4-1
address:        Koishikawa
address:        Bunkyo-ku, Tokyo Japan
address:        112-0002
phone:          +000000000
e-mail:         biz-net_admin@ntt.com
admin-c:        KO185-AP
tech-c:         KO185-AP
nic-hdl:        AN768-AP
remarks:        Generated from irt object IRT-NTT-BIZLINK-JP
remarks:        biz-net_admin@ntt.com was validated on 2025-12-24
abuse-mailbox:  biz-net_admin@ntt.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-24T00:20:20Z
source:         APNIC

person:         Kazuyoshi Oohashi
address:        Sumitomo Korakuen Bldg. 1-4-1 Bunkyo-ku, Tokyo Japan
country:        JP
phone:          +81-3-6381-2680
e-mail:         biz-net_admin@ntt.com
nic-hdl:        KO185-AP
mnt-by:         MAINT-JP-BIZLINK
last-modified:  2024-05-24T06:21:54Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 117.20.72.0/22

Range	ASN	Company	Num of IPs
117.20.72.0/21	AS23639	Internet Data Center	2,048

Nearby Ranges

BGP prefixes that overlap with 117.20.0.0/16

Range	ASN	Company	Num of IPs
117.20.128.0/18	AS138345	StarHub Internet Pte Ltd	16,384
117.20.128.0/18	AS4657	StarHub Internet Pte Ltd	16,384
117.20.192.0/18	AS9981	kt HCN Co.,Ltd.	16,384
117.20.48.0/20	AS23951	PT Jembatan Citra Nusantara	4,096
117.20.0.0/20	AS45671	Servers Australia Pty Ltd	4,096
117.20.80.0/20	AS18310	SK Broadband Co Ltd	4,096
117.20.96.0/20	AS9597	KDDI Web Communications Inc.	4,096
117.20.72.0/21	AS23639	Internet Data Center	2,048
117.20.112.0/21	AS45498	Smart Axiata Co.,Ltd.	2,048
117.20.64.0/21	AS4764	Westvic Broadband Pty Ltd	2,048
117.20.120.0/21	AS9246	TeleGuam Holdings, LLC	2,048
117.20.40.0/23	AS32475	Internap Network Services (Singapore) Co. Ltd.	512
117.20.116.0/24	AS45498	Smart Axiata Co., Ltd.	256
117.20.117.0/24	AS45498	Smart Axiata Co., Ltd.	256
117.20.118.0/24	AS45498	Smart Axiata Co., Ltd.	256
117.20.119.0/24	AS45498	Smart Axiata Co., Ltd.	256
117.20.112.0/24	AS45498	Smart Axiata Co., Ltd.	256
117.20.33.0/24	AS45879	Broadband ADSL 128	256
117.20.34.0/24	AS45879	Broadband ADSL Pool 2	256
117.20.35.0/24	AS45879	Broadband ADSL Pool 3	256
117.20.38.0/24	AS45879	Broadband ADSL Pool 5 - Wallis islands	256
117.20.39.0/24	AS45879	Broadband ADSL Pool 6 - Wallis islands	256
117.20.47.0/24	AS393954	cfnservices-10	256
117.20.42.0/24	AS14148	CPA GLOBAL SUPPORT SERVICES INDIA PVT LTD	256
117.20.113.0/24	AS45498	Smart Axiata Co., Ltd.	256
117.20.115.0/24	AS45498	Smart Axiata Co., Ltd.	256
117.20.114.0/24	AS45498	Smart Axiata Co., Ltd.	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
117.20.73.13	AS23639 NTT Bizlink, Inc.	`0.99ms` from Tokyo, JP
117.20.75.78	AS23639 NTT Bizlink, Inc.	`1.36ms` 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
164.167.21.134	AS5972 United States Department of Defense (DoD)	`4.61ms` from Ashburn, US
101.5.222.118	AS4538 China Education and Research Network Center	`6.18ms` from Beijing, CN
189.174.181.22	AS8151 UNINET	`15.93ms` from Cancún, MX
104.178.29.150	AS7018 AT&T Enterprises, LLC	`10.43ms` from Columbus, US
125.125.232.54	AS4134 CHINANET-BACKBONE	`8.99ms` from Hangzhou, CN
122.157.54.118	AS4837 CHINA UNICOM China169 Backbone	`7.75ms` from Harbin, CN
84.248.134.70	AS1759 Telia Finland Oyj	`4.97ms` from Helsinki, FI
49.57.173.22	AS4766 Korea Telecom	`1.90ms` from Incheon, KR
194.124.144.214	AS211415 Karolio IT paslaugos, UAB	`0.24ms` from London, GB
47.157.20.22	AS5650 Frontier Communications of America, Inc.	`1.98ms` from Los Angeles, US
60.162.209.150	AS4134 CHINANET-BACKBONE	`5.98ms` from Ningbo, CN
77.178.204.182	AS6805 Telefonica Germany GmbH & Co.OHG	`18.25ms` from Nuernberg, DE
168.110.86.182	AS31898 Oracle Corporation	`1.77ms` from Sydney, AU
157.185.181.38	AS54994 Meteverse Limited.	`0.35ms` from Dallas, US
40.90.25.166	AS8075 Microsoft Corporation	`0.41ms` from Dublin, IE
3.74.8.86	AS16509 Amazon.com, Inc.	`0.15ms` from Frankfurt am Main, DE
109.85.24.198	AS3209 Vodafone GmbH	`1.03ms` from Hamburg, DE
5.58.24.134	AS16223 MAXNET TELECOM, LTD	`5.57ms` from Kyiv, UA
12.87.254.198	AS7018 AT&T Enterprises, LLC	`1.45ms` from Los Angeles, US
78.129.220.134	AS20860 IOMART CLOUD SERVICES LIMITED	`0.28ms` from Maidenhead, GB
79.7.96.54	AS3269 Telecom Italia S.p.A.	`5.08ms` from Milan, IT
180.108.143.70	AS140292 CHINATELECOM Jiangsu province Suzhou 5G network	`6.93ms` from Nanjing, CN
88.160.10.118	AS12322 Free SAS	`3.17ms` from Paris, FR
95.58.143.230	AS9198 JSC Kazakhtelecom	`1.21ms` from Pavlodar, KZ
108.209.105.214	AS7018 AT&T Enterprises, LLC	`4.08ms` from Santa Clara, US

Traceroute

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

traceroute -a -n -q1 -f3 -m13 117.20.74.183

traceroute to 117.20.74.183 (117.20.74.183): 13 hops max, 52 byte packets

3 [AS3257] 89.149.139.5 28.975 ms

4 [AS2497] 210.130.133.29 25.841 ms

5 [AS2497] 58.138.83.174 181.298 ms

6 *

7 [AS2497] 58.138.112.222 258.898 ms

8 [AS2497] 58.138.114.162 258.215 ms

9 [AS2497] 210.138.9.198 258.872 ms

10 [AS23639] 117.20.76.6 258.771 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Warsaw, PL

On February 16th 2026

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