Autonomous System details

AS37900

NTT DOCOMO BUSINESS, Inc.  ·  ntt.com

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AS37900 – NTT DOCOMO BUSINESS, Inc.

Field Value
Country Japan
Website ntt.com
Hosted domains 0
IPv4 addresses 1,024
IPv6 addresses 3,626,777,458,843,887,600,000,000
ASN type ISP
Registry jpnic
Updated 2 months ago on Feb 02, 2026
Netblock Company Num of IPs
202.2.89.0/24 NTT DOCOMO Business, Inc 256
202.2.91.0/24 NTT DOCOMO Business, Inc 256
202.4.244.0/24 NTT DOCOMO Business, Inc 256
202.4.245.0/24 NTT DOCOMO Business, Inc 256
Netblock Company
2402:c800:fff1::/48 NTT DOCOMO BUSINESS, Inc.
2402:c800:fff3::/48 NTT DOCOMO BUSINESS, Inc.
2402:c800:fff6::/48 NTT DOCOMO BUSINESS, Inc.
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WHOIS Details


                                                ASHandle:       AS37900
                                                OrgID:          AS37900
                                                ASName:         AS37900
                                                ASNumber:       AS37900
                                                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 4 peers for this ASN.

Peers Name
AS17676 SoftBank Corp.
AS2516 KDDI CORPORATION
AS2914 NTT America, Inc.
AS4713 NTT DOCOMO BUSINESS,Inc.
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Upstreams

There are 4 upstreams for this ASN.

upstreams Name
AS17676 SoftBank Corp.
AS2516 KDDI CORPORATION
AS2914 NTT America, Inc.
AS4713 NTT DOCOMO BUSINESS,Inc.
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
202.4.244.129 AS37900 NTT DOCOMO BUSINESS, Inc. 1.38ms from Tokyo, JP
202.4.245.129 AS37900 NTT DOCOMO BUSINESS, Inc. 1.61ms from Tokyo, JP
202.2.89.129 AS37900 NTT DOCOMO BUSINESS, Inc. 2.10ms from Tokyo, JP
2402:c800:fff1::1 AS37900 NTT DOCOMO BUSINESS, Inc. 1.53ms from Tokyo, JP
2402:c800:fff3::1 AS37900 NTT DOCOMO BUSINESS, Inc. 2.13ms from Tokyo, JP
2402:c800:fff6::1 AS37900 NTT DOCOMO BUSINESS, Inc. 1.59ms from Tokyo, JP
202.2.91.129 AS37900 NTT DOCOMO BUSINESS, Inc. 1.55ms 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
95.211.16.188 AS60781 LeaseWeb Netherlands B.V. 0.21ms from Amsterdam, NL
42.49.52.252 AS4837 CHINA UNICOM China169 Backbone 5.62ms from Changsha, CN
107.210.168.220 AS7018 AT&T Enterprises, LLC 4.73ms from Los Angeles, US
60.105.92.108 AS17676 SoftBank Corp. 4.18ms from Osaka, JP
116.40.232.12 AS17858 LG POWERCOMM 1.41ms from Seoul, KR
116.65.42.252 AS9824 JCOM Co., Ltd. 4.65ms from Tokyo, JP
70.24.194.252 AS577 Bell Canada 4.09ms from Toronto, CA
161.10.42.12 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 8.33ms from Bogota, CO
52.252.107.204 AS8075 Microsoft Corporation 0.24ms from Boydton, US
112.44.180.44 AS9808 China Mobile Communications Group Co., Ltd. 3.68ms from Chengdu, CN
113.1.183.108 AS4837 CHINA UNICOM China169 Backbone 5.62ms from Harbin, CN
211.243.0.76 AS9318 SK Broadband Co Ltd 1.95ms from Incheon, KR
1.7.46.156 AS9583 Sify Limited 0.85ms from Indore, IN
79.105.220.236 AS12389 PJSC Rostelecom 10.18ms from Khabarovsk, RU
81.44.194.156 AS3352 TELEFONICA DE ESPANA S.A.U. 1.12ms from Madrid, ES
77.221.151.156 AS216246 Aeza Group LLC 0.84ms from Moscow, RU
62.35.221.172 AS5410 Bouygues Telecom SA 11.96ms from Paris, FR
34.237.236.108 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
5.251.8.236 AS9198 JSC Kazakhtelecom 9.72ms from Almaty, KZ
206.198.137.204 AS20333 Cloudwave 6.92ms from Dallas, US
93.216.82.44 AS3320 Deutsche Telekom AG 7.33ms from Frankfurt am Main, DE
154.120.87.44 AS37340 SPECTRANET LIMITED 12.29ms from Lagos, NG
103.199.246.12 AS26658 HT 0.29ms from Los Angeles, US
82.62.11.140 AS3269 Telecom Italia S.p.A. 4.88ms from Milan, IT
213.5.129.188 AS212238 Datacamp Limited 0.36ms from New York City, US

Traceroute

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

$
traceroute -a -n -q1 -f4 202.4.244.129
traceroute to 202.4.244.129 (202.4.244.129): 64 hops max, 52 byte packets
5 [AS20940] 23.56.142.36 0.426 ms
6 [AS20940] 23.56.142.32 0.422 ms
8 *
10 [AS37900] 202.4.244.129 1.745 ms
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 AS37900 at robtex.

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