Autonomous System details

AS37918

NTT, Inc.  ·  ntt.co.jp

Japan

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AS37918 – NTT, Inc.

Field Value
Country Japan
Website ntt.co.jp
Hosted domains 0
IPv4 addresses 69,376
IPv6 addresses 1,208,925,819,614,629,200,000,000
ASN type Business
Registry jpnic
Updated 4 months ago on Dec 20, 2025

IP Ranges

Netblock Company Num of IPs
129.60.0.0/16 Nippon Telegraph and Telephone Corporation 65,536
129.60.0.0/17 Nippon Telegraph and Telephone Corporation 32,768
129.60.128.0/17 Nippon Telegraph and Telephone Corporation 32,768
192.68.236.0/23 Nippon Telegraph and Telephone Corporation 512
192.68.240.0/23 Nippon Telegraph and Telephone Corporation 512
192.68.246.0/23 Nippon Telegraph and Telephone Corporation 512
192.68.235.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.236.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.237.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.238.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.239.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.240.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.241.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.242.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.243.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.244.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.245.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.246.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.247.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.248.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.249.0/24 Nippon Telegraph and Telephone Corporation 256

Netblock Company
2001:df0:45::/48 NTT Loboratorie's Official Network, Telecom Carrier Laboratories
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WHOIS Details

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                                                ASHandle:       AS37918
                                                OrgID:          AS37918
                                                ASName:         AS37918
                                                ASNumber:       AS37918
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are no domains currently hosted on this ASN.

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Peers

There are 13 peers for this ASN.

Peers Name
AS140627 OneQode
AS17639 Converge ICT Solutions Inc.
AS20485 Joint Stock Company TransTeleCom
AS24482 SG.GS
AS2497 Internet Initiative Japan Inc.
AS2907 Research Organization of Information and Systems, National Institute of Informatics
AS45489 Sri Lanka Telecom PLC, GLobal Peering
AS4775 Globe Telecoms
AS49544 i3D.net B.V
AS6939 Hurricane Electric LLC
AS8966 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
AS9002 RETN Limited
AS9370 SAKURA Internet Inc.
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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS2497 Internet Initiative Japan Inc.
AS2907 Research Organization of Information and Systems, National Institute of Informatics
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
129.60.39.103 AS37918 NTT, Inc. 2.02ms 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
75.165.129.254 AS19901 Brightspeed 8.43ms from Ashburn, US
200.45.178.30 AS7303 Telecom Argentina S.A. 14.39ms from Buenos Aires, AR
64.66.119.254 AS29968 Dunkirk & Fredonia Telephone Company 8.83ms from Buffalo, US
104.10.242.142 AS7018 AT&T Enterprises, LLC 6.82ms from Chicago, US
74.112.93.94 AS17378 TierPoint, LLC 6.50ms from Dallas, US
217.19.183.14 AS28676 WITCOM Wiesbadener Informations- und Telekommunikations GmbH 1.30ms from Frankfurt am Main, DE
141.99.243.190 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 6.39ms from Frankfurt am Main, DE
187.205.131.110 AS8151 UNINET 7.45ms from Guadalajara, MX
42.200.107.254 AS4760 HKT Limited 1.18ms from Hong Kong, HK
85.139.175.254 AS2860 NOS COMUNICACOES, S.A. 1.66ms from Lisbon, PT
109.51.152.126 AS2860 NOS COMUNICACOES, S.A. 8.32ms from Lisbon, PT
102.211.131.254 AS37645 Finstar - Sociedade de Investimento e Participacoes S.A 0.84ms from Luanda, AO
185.229.98.126 AS200845 AVATEL TELECOM, SA 8.19ms from Madrid, ES
115.147.16.190 AS9299 Philippine Long Distance Telephone Company 0.64ms from Manila, PH
119.93.56.30 AS9299 Philippine Long Distance Telephone Company 0.77ms from Manila, PH
67.4.8.254 AS209 CenturyLink Communications, LLC 0.69ms from Minneapolis, US
190.34.33.206 AS11556 Cable & Wireless Panama 1.62ms from Panama, PA
94.88.126.190 AS3269 Telecom Italia S.p.A. 4.27ms from Rome, IT
222.109.48.254 AS4766 Korea Telecom 1.37ms from Seoul, KR
122.208.179.254 AS17506 ARTERIA Networks Corporation 0.87ms from Tokyo, JP
71.217.211.254 AS19901 Brightspeed 10.75ms from Ashburn, US
75.175.69.254 AS19901 Brightspeed 11.03ms from Atlanta, US
91.66.22.254 AS3209 Vodafone GmbH 1.96ms from Berlin, DE
144.130.113.206 AS1221 Telstra Limited 8.19ms from Brisbane, AU
63.227.64.254 AS209 CenturyLink Communications, LLC 7.49ms from Chicago, US

Traceroute

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

$
traceroute -a -n -q1 -f6 -m10 192.68.236.14
traceroute to 192.68.236.14 (192.68.236.14): 10 hops max, 52 byte packets
6 [AS4134] 121.14.50.9 4.886 ms
7 [AS4134] 113.96.5.181 5.615 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Guangzhou, CN
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS37918 at robtex.

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