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 3 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 15 peers for this ASN.

Peers Name
AS140627 OneQode
AS17639 Converge ICT Solutions Inc.
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 DOCOMO BUSINESS,Inc.
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 DOCOMO BUSINESS,Inc.
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
163.138.248.29 AS38639 NTT DOCOMO BUSINESS, Inc. 4.55ms from Tokyo, JP
115.69.227.235 AS38639 NTT DOCOMO BUSINESS, Inc. 3.94ms from Tokyo, JP
115.69.230.201 AS38639 NTT DOCOMO BUSINESS, Inc. 1.09ms from Tokyo, JP
115.69.231.75 AS38639 NTT DOCOMO BUSINESS, Inc. 1.17ms from Tokyo, JP
163.138.252.152 AS38639 NTT DOCOMO BUSINESS, Inc. 3.04ms from Tokyo, JP
2402:c800:4:2::244:204 AS38639 NTT DOCOMO BUSINESS, Inc. 1.13ms from Tokyo, JP
163.138.244.97 AS38639 NTT DOCOMO BUSINESS, Inc. 1.15ms from Tokyo, JP
103.2.130.8 AS38639 NTT DOCOMO BUSINESS, Inc. 1.04ms from Tokyo, JP
163.138.227.105 AS38639 NTT DOCOMO BUSINESS, Inc. 1.09ms from Tokyo, JP
103.2.129.145 AS38639 NTT DOCOMO BUSINESS, Inc. 1.09ms from Tokyo, JP
163.138.239.1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.27ms from Tokyo, JP
115.69.228.65 AS38639 NTT DOCOMO BUSINESS, Inc. 1.15ms from Tokyo, JP
163.138.255.74 AS38639 NTT DOCOMO BUSINESS, Inc. 1.09ms from Tokyo, JP
115.69.229.91 AS38639 NTT DOCOMO BUSINESS, Inc. 1.23ms from Tokyo, JP
2402:c800:bb:103::1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.22ms from Tokyo, JP
163.138.247.193 AS38639 NTT DOCOMO BUSINESS, Inc. 1.06ms from Tokyo, JP
163.138.238.150 AS38639 NTT DOCOMO BUSINESS, Inc. 1.13ms from Tokyo, JP
115.69.226.129 AS38639 NTT DOCOMO BUSINESS, Inc. 1.19ms from Tokyo, JP
115.69.224.93 AS38639 NTT DOCOMO BUSINESS, Inc. 1.12ms from Tokyo, JP
115.69.225.205 AS38639 NTT DOCOMO BUSINESS, Inc. 1.07ms from Tokyo, JP
163.138.232.225 AS38639 NTT DOCOMO BUSINESS, Inc. 1.22ms 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
86.99.117.47 AS5384 Emirates Internet 4.45ms from Al Fujairah City, AE
74.123.53.159 AS14292 CSC Consular Services Inc. 0.66ms from Ashburn, US
156.203.35.175 AS8452 TE-AS 4.53ms from Cairo, EG
97.149.171.47 AS6167 Verizon Business 9.02ms from Chicago, US
31.150.17.191 AS9145 EWE TEL GmbH 7.98ms from Hamburg, DE
80.221.187.31 AS1759 Telia Finland Oyj 0.81ms from Helsinki, FI
81.215.210.143 AS47331 TTNet A.S. 12.19ms from Istanbul, TR
46.173.191.79 AS52194 IT Ltd 5.18ms from Krasnodar, RU
39.45.109.191 AS17557 Pakistan Telecommunication Company Limited 1.67ms from Lahore, PK
94.236.54.15 AS15395 Rackspace Ltd. 1.22ms from London, GB
86.148.34.31 AS2856 British Telecommunications PLC 2.15ms from London, GB
90.195.233.31 AS5607 Sky UK Limited 6.41ms from London, GB
82.90.72.255 AS3269 Telecom Italia S.p.A. 4.83ms from Milan, IT
15.157.43.239 AS16509 Amazon.com, Inc. 0.14ms from Montreal, CA
78.197.98.111 AS12322 Free SAS 1.33ms from Paris, FR
121.200.32.111 AS10214 Pentanet Limited 1.26ms from Perth, AU
20.175.99.175 AS8075 Microsoft Corporation 0.16ms from Quebec, CA
159.148.7.175 AS2588 SIA BITE Latvija 0.57ms from Riga, LV
190.163.254.207 AS22047 VTR BANDA ANCHA S.A. 4.06ms from Santiago, CL
191.248.185.95 AS18881 TELEFÔNICA BRASIL S.A 9.82ms from Sao Paulo, BR
20.36.253.255 AS8075 Microsoft Corporation 0.16ms from Boydton, US
46.166.30.47 AS25454 ORANGE MOLDOVA S.A. 11.79ms from Chisinau, MD
184.56.42.127 AS10796 Charter Communications Inc 11.26ms from Flint, US
220.189.214.31 AS4134 CHINANET-BACKBONE 4.20ms from Hangzhou, CN
98.150.121.95 AS20001 Charter Communications Inc 9.91ms from Los Angeles, US

Traceroute

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

$
traceroute -a -n -q1 -f3 -m9 163.138.242.146
traceroute to 163.138.242.146 (163.138.242.146): 9 hops max, 52 byte packets
3 [AS3258] 91.200.240.64 0.905 ms
4 *
5 *
6 [] 210.173.177.175 0.958 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Tokyo, JP
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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