AS number details

AS38639

NTT DOCOMO BUSINESS, Inc.  ·  ntt.com

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AS38639 – NTT DOCOMO BUSINESS, Inc.

Field Value
Country Japan
Website ntt.com
Hosted domains 1
Number of IPv4 13,312
Number of IPv6 79,229,371,440,083,952,222,718,656,512
ASN type Hosting
Registry jpnic
Updated a month ago on Jul 11, 2025
Netblock Company Num of IPs
163.138.224.0/19 Nippon Telegraph and Telephone Corporation 8,192
115.69.224.0/21 NTT Communications Corporation 2,048
220.150.192.0/21 NTT Communications Corporation 2,048
103.2.128.0/22 NTT Communications Corporation 1,024
220.150.196.0/24 NTT Communications Corporation 256
Netblock Company
2402:c800::/32 NTT Communications Corporation
2402:c800:cafe::/48 NTT Communications Corporation
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WHOIS Details


                                                ASHandle:       AS38639
                                                OrgID:          AS38639
                                                ASName:         AS38639
                                                ASNumber:       AS38639
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There is 1 domain name hosted across 1 IP address on this ASN.

IP Address Domain Domains on this IP
163.138.238.208 ██████████ 1

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Peers

There are 17 peers for this ASN.

Peers Name
AS140627 OneQode
AS173 Nippon Telegraph and Telephone Corporation
AS17639 Converge ICT Solutions Inc.
AS18403 FPT Telecom Company
AS20485 Joint Stock Company TransTeleCom
AS24482 SG.GS
AS25152 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS2914 NTT America, Inc.
AS3216 PJSC "Vimpelcom"
AS45489 Sri Lanka Telecom PLC, GLobal Peering
AS4713 NTT Communications Corporation
AS49544 i3D.net B.V
AS6939 Hurricane Electric LLC
AS7713 PT Telekomunikasi Indonesia
AS8966 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
AS9002 RETN Limited
AS9370 SAKURA Internet Inc.
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS2914 NTT America, Inc.
AS4713 NTT Communications Corporation
AS6939 Hurricane Electric LLC
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
115.69.226.129 AS38639 NTT DOCOMO BUSINESS, Inc. 1.12ms from Tokyo, JP
163.138.244.97 AS38639 NTT DOCOMO BUSINESS, Inc. 1.11ms from Tokyo, JP
163.138.227.33 AS38639 NTT DOCOMO BUSINESS, Inc. 1.13ms from Tokyo, JP
163.138.252.235 AS38639 NTT DOCOMO BUSINESS, Inc. 2.90ms from Tokyo, JP
2402:c800:ca:68::1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.22ms from Tokyo, JP
103.2.130.1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.15ms from Tokyo, JP
163.138.238.145 AS38639 NTT DOCOMO BUSINESS, Inc. 1.21ms from Tokyo, JP
2402:c800:bb:10a::2 AS38639 NTT DOCOMO BUSINESS, Inc. 1.17ms from Tokyo, JP
115.69.228.65 AS38639 NTT DOCOMO BUSINESS, Inc. 1.21ms from Tokyo, JP
115.69.224.92 AS38639 NTT DOCOMO BUSINESS, Inc. 1.14ms from Tokyo, JP
163.138.239.1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.24ms from Tokyo, JP
115.69.225.205 AS38639 NTT DOCOMO BUSINESS, Inc. 1.13ms from Tokyo, JP
220.150.196.97 AS38639 NTT DOCOMO BUSINESS, Inc. 2.00ms from Tokyo, JP
115.69.227.36 AS38639 NTT DOCOMO BUSINESS, Inc. 3.81ms from Tokyo, JP
163.138.232.229 AS38639 NTT DOCOMO BUSINESS, Inc. 1.45ms from Tokyo, JP
115.69.231.75 AS38639 NTT DOCOMO BUSINESS, Inc. 1.16ms from Tokyo, JP
115.69.230.57 AS38639 NTT DOCOMO BUSINESS, Inc. 1.14ms from Tokyo, JP
115.69.229.91 AS38639 NTT DOCOMO BUSINESS, Inc. 1.30ms from Tokyo, JP
103.2.129.145 AS38639 NTT DOCOMO BUSINESS, Inc. 1.11ms from Tokyo, JP
2402:c800:4::17 AS38639 NTT DOCOMO BUSINESS, Inc. 1.12ms from Tokyo, JP
163.138.255.7 AS38639 NTT DOCOMO BUSINESS, Inc. 1.15ms from Tokyo, JP
163.138.247.129 AS38639 NTT DOCOMO BUSINESS, Inc. 1.07ms 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
132.220.110.47 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
110.49.92.63 AS45458 SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX 2.13ms from Bangkok, TH
52.81.97.159 AS55960 Beijing Guanghuan Xinwang Digital 3.90ms from Beijing, CN
34.251.209.255 AS16509 Amazon.com, Inc. 0.22ms from Dublin, IE
34.253.127.175 AS16509 Amazon.com, Inc. 0.24ms from Dublin, IE
120.157.209.63 AS1221 Telstra Limited 11.64ms from Melbourne, AU
95.165.154.255 AS25513 PJSC Moscow city telephone network 2.15ms from Moscow, RU
142.197.169.111 AS33363 Charter Communications, Inc 5.27ms from Orlando, US
203.137.99.15 AS4694 IDC Frontier Inc. 0.48ms from Osaka, JP
18.208.67.111 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
122.153.200.79 AS9316 DACOM-PUBNETPLUS 2.26ms from Seoul, KR
180.171.168.95 AS4812 China Telecom (Group) 2.69ms from Shanghai, CN
46.10.83.95 AS8866 Vivacom Bulgaria EAD 4.38ms from Sofia, BG
20.53.159.207 AS8075 Microsoft Corporation 0.72ms from Sydney, AU
211.75.81.127 AS3462 Data Communication Business Group 0.90ms from Taipei, TW
188.117.251.63 AS57794 ELLINIKA DIKTIA KALODION MEPE 1.08ms from Thessaloniki, GR
94.172.31.207 AS9141 P4 Sp. z o.o. 5.93ms from Warsaw, PL
117.33.240.239 AS134768 CHINANET SHAANXI province Cloud Base network 2.69ms from Xi'an, CN
105.97.132.175 AS36947 Telecom Algeria 12.10ms from Algiers, DZ
108.143.147.31 AS8075 Microsoft Corporation 0.30ms from Amsterdam, NL
166.98.71.79 AS16733 Gen Digital Inc. 1.76ms from Ashburn, US
143.20.179.207 AS213734 ZERODESK LTD 0.60ms from Ashburn, US
43.136.216.159 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.80ms from Chengdu, CN
87.174.29.159 AS3320 Deutsche Telekom AG 9.95ms from Frankfurt am Main, DE
87.95.136.111 AS16086 DNA Oyj 2.18ms from Helsinki, FI

Traceroute

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

$
traceroute -a -n -q1 -m4 163.138.234.77
traceroute to 163.138.234.77 (163.138.234.77): 4 hops max, 52 byte packets
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Sydney, AU
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 AS38639 at robtex.

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