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 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 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
103.2.130.9 AS38639 NTT DOCOMO BUSINESS, Inc. 1.08ms from Tokyo, JP
163.138.239.1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.24ms from Tokyo, JP
103.2.129.34 AS38639 NTT DOCOMO BUSINESS, Inc. 1.01ms from Tokyo, JP
115.69.224.92 AS38639 NTT DOCOMO BUSINESS, Inc. 1.11ms from Tokyo, JP
163.138.238.145 AS38639 NTT DOCOMO BUSINESS, Inc. 1.15ms from Tokyo, JP
115.69.230.1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.15ms from Tokyo, JP
163.138.255.74 AS38639 NTT DOCOMO BUSINESS, Inc. 1.06ms from Tokyo, JP
115.69.228.65 AS38639 NTT DOCOMO BUSINESS, Inc. 1.08ms from Tokyo, JP
115.69.226.129 AS38639 NTT DOCOMO BUSINESS, Inc. 1.17ms from Tokyo, JP
163.138.227.105 AS38639 NTT DOCOMO BUSINESS, Inc. 1.12ms from Tokyo, JP
115.69.227.235 AS38639 NTT DOCOMO BUSINESS, Inc. 3.93ms from Tokyo, JP
163.138.244.97 AS38639 NTT DOCOMO BUSINESS, Inc. 1.07ms from Tokyo, JP
2402:c800:bb:102::1 AS38639 NTT DOCOMO BUSINESS, Inc. 1.11ms from Tokyo, JP
163.138.247.41 AS38639 NTT DOCOMO BUSINESS, Inc. 1.15ms from Tokyo, JP
163.138.252.245 AS38639 NTT DOCOMO BUSINESS, Inc. 2.89ms from Tokyo, JP
2402:c800:4::17 AS38639 NTT DOCOMO BUSINESS, Inc. 1.11ms from Tokyo, JP
115.69.229.91 AS38639 NTT DOCOMO BUSINESS, Inc. 1.24ms from Tokyo, JP
163.138.232.225 AS38639 NTT DOCOMO BUSINESS, Inc. 1.31ms from Tokyo, JP
115.69.231.75 AS38639 NTT DOCOMO BUSINESS, Inc. 1.15ms from Tokyo, JP
220.150.196.65 AS38639 NTT DOCOMO BUSINESS, Inc. 1.93ms from Tokyo, JP
115.69.225.205 AS38639 NTT DOCOMO BUSINESS, Inc. 1.17ms 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
156.225.67.191 AS24875 NovoServe B.V. 0.56ms from Amsterdam, NL
20.84.36.79 AS8075 Microsoft Corporation 0.40ms from Ashburn, US
176.190.182.191 AS5410 Bouygues Telecom SA 12.44ms from Aubervilliers, FR
71.71.247.15 AS11426 Charter Communications Inc 8.24ms from Charlotte, US
69.247.208.95 AS7922 Comcast Cable Communications, LLC 12.42ms from Chicago, US
42.121.22.79 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.42ms from Hangzhou, CN
172.103.67.127 AS29804 Valu-Net LLC. 3.72ms from Kansas City, US
109.87.197.31 AS13188 CONTENT DELIVERY NETWORK LTD 6.59ms from Kharkiv, UA
88.18.210.223 AS3352 TELEFONICA DE ESPANA S.A.U. 11.48ms from Madrid, ES
176.214.132.127 AS59713 JSC "ER-Telecom Holding" 7.29ms from Moscow, RU
180.103.232.159 AS4134 CHINANET-BACKBONE 5.42ms from Nanjing, CN
60.91.241.207 AS17676 SoftBank Corp. 3.82ms from Osaka, JP
153.201.85.95 AS4713 NTT Communications Corporation 5.51ms from Osaka, JP
90.9.36.159 AS3215 Orange S.A. 9.15ms from Paris, FR
181.88.60.15 AS7303 Telecom Argentina S.A. 2.52ms from Rosario, AR
77.106.24.47 AS12389 PJSC Rostelecom 10.92ms from Saint Petersburg, RU
201.239.215.79 AS22047 VTR BANDA ANCHA S.A. 8.67ms from Santiago, CL
146.129.238.31 AS2544 King County Gov 0.57ms from Seattle, US
12.75.222.15 AS7018 AT&T Enterprises, LLC 4.06ms from Seattle, US
211.62.128.63 AS3786 LG DACOM Corporation 1.91ms from Seoul, KR
220.126.131.47 AS4766 Korea Telecom 1.27ms from Seoul, KR
59.19.225.111 AS4766 Korea Telecom 7.46ms from Seoul, KR
211.209.230.159 AS9318 SK Broadband Co Ltd 0.94ms from Seoul, KR
93.183.173.175 AS25374 ESCOM Ltd. - Haskovo 4.38ms from Sofia, BG
46.10.83.95 AS8866 Vivacom Bulgaria EAD 4.42ms from Sofia, BG

Traceroute

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

$
traceroute -a -n -q1 -m12 163.138.248.176
traceroute to 163.138.248.176 (163.138.248.176): 12 hops max, 52 byte packets
2 *
6 *
7 *
8 [] 210.173.176.56 103.664 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Medan, ID
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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