163.138.0.0/17

AS2511  ·  Nippon Telegraph and Telephone Corporation

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Summary

Country Japan
Domain group.ntt
ASN AS2511
Registry APNIC
ID NTTECL-JP

WHOIS Details

inetnum:        163.138.0.0 - 163.138.255.255
netname:        NTTECL-JP
descr:          Nippon Telegraph and Telephone Corporation
country:        JP
org:            ORG-NTAT1-AP
admin-c:        CIO2-AP
tech-c:         NIC10-AP
status:         ALLOCATED PORTABLE
abuse-c:        AN845-AP
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-NTTECL-JP
mnt-routes:     MAINT-JP-NTTECL-JP
mnt-irt:        IRT-NTTECL-JP
last-modified:  2023-01-25T04:58:38Z
source:         APNIC

irt:            IRT-NTTECL-JP
address:        3-9-11 Midori-cho, Musashino-shi, Tokyo, Japan
e-mail:         rd-it-helpdesk@ml.ntt.com
abuse-mailbox:  rd-it-helpdesk@ml.ntt.com
admin-c:        TF79-AP
tech-c:         TF79-AP
auth:           # Filtered
remarks:        rd-it-helpdesk@ml.ntt.com was validated on 2026-02-26
mnt-by:         MAINT-JP-NTTECL-JP
last-modified:  2026-02-26T04:02:11Z
source:         APNIC

organisation:   ORG-NTAT1-AP
org-name:       Nippon Telegraph and Telephone Corporation
org-type:       LIR
country:        JP
address:        3-9-11 Midori-cho Musashino-shi
phone:          +81-422-59-2725
fax-no:         +81-422-59-5637
e-mail:         it-pb@ml.ntt.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:59Z
source:         APNIC

role:           ABUSE NTTECLJP
country:        ZZ
address:        3-9-11 Midori-cho, Musashino-shi, Tokyo, Japan
phone:          +000000000
e-mail:         rd-it-helpdesk@ml.ntt.com
admin-c:        TF79-AP
tech-c:         TF79-AP
nic-hdl:        AN845-AP
remarks:        Generated from irt object IRT-NTTECL-JP
remarks:        rd-it-helpdesk@ml.ntt.com was validated on 2026-02-26
abuse-mailbox:  rd-it-helpdesk@ml.ntt.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-26T04:02:33Z
source:         APNIC

role:           CIO Office
address:        3-9-11 Midori-cho, Musashino-shi, Tokyo, 180-8585 Japan
country:        JP
phone:          +81-422-59-2725
fax-no:         +81-422-59-5600
e-mail:         it-pb@hco.ntt.co.jp
admin-c:        NIC10-AP
tech-c:         NIC10-AP
nic-hdl:        CIO2-AP
mnt-by:         MAINT-JP-NTTELECTCOMLAB
last-modified:  2019-03-28T07:36:32Z
source:         APNIC

role:           Network Information Center
address:        3-9-11 Midori-cho
address:        Musashino-shi, Tokyo 180-0012
country:        JP
phone:          +81-422-59-4200
e-mail:         sd-hosyu-b@ml.ntt.com
admin-c:        NIC10-AP
tech-c:         NIC10-AP
nic-hdl:        NIC10-AP
notify:         sd-hosyu-b@ml.ntt.com
mnt-by:         MAINT-JP-NTTECL-JP
last-modified:  2023-06-23T01:55:24Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 163.138.0.0/16

Range ASN Company Num of IPs
163.138.192.0/19 AS59091 Kanagawa Institute of Technology 8,192

Hosted domains

There are no domains currently hosted on this ASN.

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

Pingable IPs

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

IP Address ASN Details
163.138.88.3 AS2511 Nippon Telegraph and Telephone Corporation 1.87ms from Tokyo, JP
163.138.86.1 AS2511 Nippon Telegraph and Telephone Corporation 1.82ms from Tokyo, JP
163.138.87.3 AS2511 Nippon Telegraph and Telephone Corporation 1.82ms from Tokyo, JP
163.138.1.13 AS2511 Nippon Telegraph and Telephone Corporation 0.74ms from Tokyo, JP
163.138.83.3 AS2511 Nippon Telegraph and Telephone Corporation 1.91ms from Tokyo, JP
163.138.73.8 AS2511 Nippon Telegraph and Telephone Corporation 1.86ms from Tokyo, JP
163.138.72.1 AS2511 Nippon Telegraph and Telephone Corporation 1.84ms from Tokyo, JP
163.138.0.1 AS2511 Nippon Telegraph and Telephone Corporation 0.75ms from Tokyo, JP
163.138.10.2 AS2511 Nippon Telegraph and Telephone Corporation 0.77ms from Tokyo, JP
163.138.4.1 AS2511 Nippon Telegraph and Telephone Corporation 1.88ms from Tokyo, JP
163.138.97.8 AS2511 Nippon Telegraph and Telephone Corporation 1.71ms 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
197.251.230.225 AS29614 Ghana Telecommunications Company Limited 0.92ms from Accra, GH
83.83.46.1 AS33915 Vodafone Libertel B.V. 1.51ms from Amsterdam, NL
69.161.82.1 AS11776 Breezeline 4.74ms from Ashburn, US
47.226.234.1 AS20115 Charter Communications LLC 14.76ms from Atlanta, US
209.19.144.1 AS14230 ARK Data Centers LLC 9.79ms from Bend, US
183.83.196.1 AS24309 Atria Convergence Technologies Pvt. Ltd. Broadband Internet Service Provider INDIA 1.13ms from Bengaluru, IN
125.19.11.193 AS9498 BHARTI Airtel Ltd. 1.34ms from Bengaluru, IN
97.107.148.1 AS11847 GoNetSpeed 4.07ms from Boston, US
174.169.230.145 AS7922 Comcast Cable Communications, LLC 12.46ms from Boston, US
89.173.40.1 AS6830 Liberty Global Europe Holding B.V. 3.06ms from Brno, CZ
190.247.85.1 AS7303 Telecom Argentina S.A. 3.57ms from Buenos Aires, AR
196.138.124.145 AS24835 Vodafone Data 4.85ms from Cairo, EG
196.22.250.65 AS36874 Cybersmart 1.35ms from Cape Town, ZA
159.48.145.1 AS18474 Aeneas Internet Services 12.84ms from Chicago, US
12.54.96.81 AS7018 AT&T Enterprises, LLC 7.22ms from Chicago, US
96.68.43.1 AS7922 Comcast Cable Communications, LLC 5.58ms from Chicago, US
184.54.52.193 AS10796 Charter Communications Inc 11.10ms from Columbus, US
80.167.150.1 AS3292 TDC Holding A/S 4.35ms from Copenhagen, DK
83.90.129.1 AS3292 TDC Holding A/S 3.80ms from Copenhagen, DK
209.240.169.145 AS11238 NetWest Online, Inc. 8.78ms from Dallas, US
14.194.20.65 AS45820 Tata Teleservices ISP AS 1.30ms from Delhi, IN
144.79.249.1 AS136396 HOSTOMEGA 0.19ms from Dhaka, BD
12.27.250.129 AS7018 AT&T Enterprises, LLC 4.65ms from Durham, US
192.199.51.1 AS13804 ATG Arrow Technology Group Limited Partnership 0.59ms from Edmonton, CA
89.31.142.1 AS202108 united-domains GmbH 3.48ms from Frankfurt am Main, DE

Traceroute

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

$
traceroute -a -n -q1 -f3 -m6 163.138.122.170
traceroute to 163.138.122.170 (163.138.122.170): 6 hops max, 52 byte packets
3 [] 210.173.176.124 0.476 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Tokyo, JP
On

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