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 ISP
Registry jpnic
Updated 2 months 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 DOCOMO BUSINESS, Inc. 2,048
220.150.192.0/21 NTT DOCOMO BUSINESS, Inc. 2,048
103.2.128.0/22 NTT DOCOMO BUSINESS, Inc. 1,024
220.150.196.0/24 NTT DOCOMO BUSINESS, Inc. 256
Netblock Company
2402:c800::/32 NTT DOCOMO BUSINESS, Inc.
2402:c800:cafe::/48 NTT DOCOMO BUSINESS, Inc.
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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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Useful for Cybersecurity

Peers

There are 16 peers for this ASN.

Peers Name
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

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

IP Address ASN Details
115.69.224.60 AS38639 NTT DOCOMO BUSINESS, Inc. 1.14ms from Tokyo, JP
2402:c800:4::17 AS38639 NTT DOCOMO BUSINESS, Inc. 1.17ms from Tokyo, JP
103.2.129.193 AS38639 NTT DOCOMO BUSINESS, Inc. 1.07ms from Tokyo, JP
115.69.231.75 AS38639 NTT DOCOMO BUSINESS, Inc. 1.17ms from Tokyo, JP
163.138.255.7 AS38639 NTT DOCOMO BUSINESS, Inc. 1.15ms from Tokyo, JP
115.69.226.129 AS38639 NTT DOCOMO BUSINESS, Inc. 1.13ms from Tokyo, JP
115.69.225.204 AS38639 NTT DOCOMO BUSINESS, Inc. 1.13ms from Tokyo, JP
163.138.238.145 AS38639 NTT DOCOMO BUSINESS, Inc. 1.11ms from Tokyo, JP
163.138.232.229 AS38639 NTT DOCOMO BUSINESS, Inc. 1.46ms from Tokyo, JP
163.138.227.105 AS38639 NTT DOCOMO BUSINESS, Inc. 1.10ms from Tokyo, JP
220.150.196.3 AS38639 NTT DOCOMO BUSINESS, Inc. 2.02ms from Tokyo, JP
115.69.228.65 AS38639 NTT DOCOMO BUSINESS, Inc. 1.22ms from Tokyo, JP
163.138.247.129 AS38639 NTT DOCOMO BUSINESS, Inc. 1.11ms from Tokyo, JP
163.138.252.138 AS38639 NTT DOCOMO BUSINESS, Inc. 2.92ms from Tokyo, JP
115.69.229.91 AS38639 NTT DOCOMO BUSINESS, Inc. 1.25ms from Tokyo, JP
103.2.130.1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.07ms from Tokyo, JP
115.69.230.57 AS38639 NTT DOCOMO BUSINESS, Inc. 1.12ms from Tokyo, JP
2402:c800:bb:103::1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.13ms from Tokyo, JP
163.138.244.97 AS38639 NTT DOCOMO BUSINESS, Inc. 1.14ms from Tokyo, JP
163.138.239.1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.28ms from Tokyo, JP
115.69.227.237 AS38639 NTT DOCOMO BUSINESS, Inc. 3.94ms 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
51.105.231.207 AS8075 Microsoft Corporation 0.20ms from Amsterdam, NL
89.219.54.207 AS39232 Uninet LLC 2.62ms from Baku, AZ
91.18.204.111 AS3320 Deutsche Telekom AG 9.08ms from Frankfurt am Main, DE
199.182.98.15 AS55201 SkyQuantum Internet Service 0.24ms from Fremont, US
89.169.3.63 AS9123 JSC "TIMEWEB" 0.75ms from Moscow, RU
171.109.4.255 AS4134 CHINANET-BACKBONE 3.77ms from Nanning, CN
46.199.214.255 AS6866 Cyprus Telecommunications Authority 2.19ms from Nicosia, CY
178.69.203.239 AS12389 PJSC Rostelecom 12.03ms from Saint Petersburg, RU
116.42.35.111 AS17858 LG POWERCOMM 1.95ms from Seoul, KR
39.114.219.47 AS9318 SK Broadband Co Ltd 1.05ms from Seoul, KR
85.229.68.127 AS2119 Telenor Norge AS 0.85ms from Stockholm, SE
126.78.185.255 AS17676 SoftBank Corp. 3.10ms from Tokyo, JP
95.110.94.95 AS28812 PJSC "Bashinformsvyaz" 9.08ms from Yekaterinburg, RU
74.179.170.191 AS8075 Microsoft Corporation 0.42ms from Ashburn, US
52.24.2.31 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
100.0.183.191 AS701 Verizon Business 1.70ms from Boston, US
168.83.143.255 AS4387 Secretaria de Ciencia y Tecnologia - Red Cientific 1.97ms from Buenos Aires, AR
8.137.9.175 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.09ms from Chengdu, CN
82.83.107.47 AS3209 Vodafone GmbH 6.66ms from Hamburg, DE
109.154.76.95 AS2856 British Telecommunications PLC 6.20ms from London, GB
51.14.129.95 AS2856 British Telecommunications PLC 2.36ms from London, GB
35.215.100.239 AS15169 Google LLC 0.24ms from Los Angeles, US
187.200.86.31 AS8151 UNINET 7.99ms from Mexico City, MX
3.98.17.111 AS16509 Amazon.com, Inc. 0.16ms from Montreal, CA
180.29.75.15 AS4713 NTT Communications Corporation 2.48ms from Osaka, JP

Traceroute

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

$
traceroute -a -n -q1 -f4 -m8 163.138.235.206
traceroute to 163.138.235.206 (163.138.235.206): 8 hops max, 52 byte packets
4 [AS6453] 64.86.8.21 2.489 ms
5 [AS2914] 129.250.6.76 15.475 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Atlanta, US
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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