1. All IP Ranges
  2. 138.0.0.0/8
  3. 138.243.0.0/16
  4. AS23779  | 138.243.0.0/16

138.243.0.0/16

AS23779  ·  NTT DOCOMO BUSINESS, Inc.

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

Summary

Country Japan
Domain ntt.com
ASN AS23779
Registry APNIC
ID N-BONE

WHOIS Details

inetnum:        138.243.0.0 - 138.243.255.255
netname:        N-BONE
descr:          NTT Communications Corporation
descr:          2-3-5 Ootemachi
descr:          Chiyoda-ku Tokyo
country:        JP
org:            ORG-NCC3-AP
admin-c:        NK67-AP
tech-c:         HM99-AP
abuse-c:        AN799-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-irt:        IRT-N-BONE-NET-JP
last-modified:  2020-06-23T00:42:16Z
source:         APNIC

irt:            IRT-N-BONE-NET-JP
address:        2-3-4 Ootemachi, Chiyoda-ku, Tokyo 100-0004 JAPAN
e-mail:         sictops@ntt.com
abuse-mailbox:  sictops@ntt.com
admin-c:        NK67-AP
tech-c:         NK67-AP
auth:           # Filtered
remarks:        sictops@ntt.com was validated on 2025-12-01
mnt-by:         MAINT-JP-NBONE
last-modified:  2025-12-01T02:21:21Z
source:         APNIC

organisation:   ORG-NCC3-AP
org-name:       NTT Communications Corporation
org-type:       LIR
country:        JP
address:        NTT Ohtemachi Building Annex 7F
address:        2-3-4 Ohtemachi
phone:          +81-50-3812-4481
e-mail:         sictops@ntt.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-11-28T13:15:56Z
source:         APNIC

role:           ABUSE NBONENETJP
country:        ZZ
address:        2-3-4 Ootemachi, Chiyoda-ku, Tokyo 100-0004 JAPAN
phone:          +000000000
e-mail:         sictops@ntt.com
admin-c:        NK67-AP
tech-c:         NK67-AP
nic-hdl:        AN799-AP
remarks:        Generated from irt object IRT-N-BONE-NET-JP
remarks:        sictops@ntt.com was validated on 2025-12-01
abuse-mailbox:  sictops@ntt.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-01T02:21:48Z
source:         APNIC

person:         Hisayoshi Masuyama
nic-hdl:        HM99-AP
e-mail:         sictops@ntt.com
address:        2-1-1 Uchisaiwai-cho, Chiyoda-ku, Tokyo 100-0011 JAPAN
phone:          +81-3-6800-6796
fax-no:         +81-3-5501-3018
country:        JP
mnt-by:         MAINT-JP-NBONE
last-modified:  2025-12-02T00:27:56Z
source:         APNIC

person:         Naoyuki Kasamatsu
nic-hdl:        NK67-AP
e-mail:         sictops@ntt.com
address:        2-1-1 Uchisaiwai-cho, Chiyoda-ku, Tokyo 100-0011 JAPAN
phone:          +81-3-6800-6796
fax-no:         +81-3-5501-3018
country:        JP
mnt-by:         MAINT-JP-NBONE
last-modified:  2025-12-02T00:28:09Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 138.0.0.0/8

Range ASN Company Num of IPs
138.123.0.0/16 AS46887 Delaware Technical Community College 65,536
138.233.0.0/16 AS56736 Vastra Gotalandsregionen 65,536
138.26.0.0/16 AS3452 University of Alabama at Birmingham - University Computer Center 65,536
138.64.0.0/16 AS4685 ASAHI Net,Inc. 65,536
138.110.0.0/16 AS396128 Mount Holyoke College 65,536
138.13.0.0/16 AS56 Air Force Systems Networking 65,536
138.48.0.0/16 AS2611 Facultes Universitaires Notre Dame de la Paix 65,536
138.49.0.0/16 AS3128 University of Wisconsin-La Crosse 65,536
138.50.0.0/16 AS367 Headquarters, USAISC 65,536
138.6.0.0/16 AS38956 Uppsala local government 65,536
138.201.0.0/16 AS24940 Server Block 65,536
138.78.0.0/16 AS396087 St. Mary's College of Maryland 65,536
138.131.0.0/16 AS559 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Developpement 65,536
138.77.0.0/16 AS24433 Central Queensland University 65,536
138.216.0.0/16 AS214692 Tuve-palvelut 65,536
138.210.0.0/16 AS209 CenturyLink Communications, LLC 65,536
138.15.0.0/16 AS10753 NEC Laboratories America, Inc. 65,536
138.195.0.0/16 AS212424 CENTRALESUPELEC 65,536
138.195.0.0/16 AS2200 CENTRALESUPELEC 65,536
138.102.0.0/16 AS2200 INRAE 65,536
138.210.0.0/16 AS29817 CenturyLink Communications, LLC 65,536
138.107.0.0/16 AS2497 OLYMPUS CORPORATION 65,536
138.29.0.0/16 AS22742 Coast Guard Academy 65,536
138.231.0.0/16 AS2269 Ecole Normale Superieure Paris-Saclay EPSCP 65,536
138.116.0.0/16 AS33004 SUNY Empire State University 65,536
138.220.0.0/16 AS10497 IBRD 65,536
138.210.0.0/16 AS2379 CenturyLink Communications, LLC 65,536
138.51.0.0/16 AS239 University of Toronto 65,536
138.254.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
138.210.0.0/16 AS11398 CenturyLink Communications, LLC 65,536
138.66.0.0/16 AS20981 Prov. Casamassima Km.3 65,536
138.130.0.0/16 AS1221 Telstra Limited 65,536
138.217.0.0/16 AS1221 Telstra Limited 65,536
138.189.0.0/16 AS12511 Post CH AG 65,536
138.191.0.0/16 AS12511 Post CH AG 65,536
138.246.0.0/16 AS12816 Ludwig-Maximilians-Universitaet Muenchen 65,536
138.210.0.0/16 AS14921 CenturyLink Communications, LLC 65,536
138.92.0.0/16 AS11482 Canisius College 65,536
138.50.0.0/16 AS1565 Headquarters, USAISC 65,536
138.27.0.0/16 AS1540 Headquarters, USAISC 65,536
138.86.0.0/16 AS15295 University of Northern Colorado 65,536
138.62.0.0/16 AS25400 Norwegian State Railways 65,536
138.41.0.0/16 AS137 DIR-GARR - Roma 65,536
138.192.0.0/16 AS21727 Hamline University 65,536
138.9.0.0/16 AS18663 University of the Pacific 65,536
138.232.0.0/16 AS1110 University of Innsbruck 65,536
138.210.0.0/16 AS22186 CenturyLink Communications, LLC 65,536
138.210.0.0/16 AS22561 CenturyLink Communications, LLC 65,536
138.210.0.0/16 AS5778 CenturyLink Communications, LLC 65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity
Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
69.6.234.48 AS31898 Oracle Corporation 0.32ms from Bogota, CO
185.58.19.160 AS206723 Carnsore Broadband Limited 0.26ms from Dublin, IE
3.122.54.208 AS16509 Amazon.com, Inc. 0.50ms from Frankfurt am Main, DE
95.94.98.80 AS2860 NOS COMUNICACOES, S.A. 7.11ms from Lisbon, PT
180.233.165.64 AS45474 NEXUSGUARD LIMITED 0.21ms from Los Angeles, US
213.96.205.128 AS3352 TELEFONICA DE ESPANA S.A.U. 7.83ms from Madrid, ES
85.165.55.192 AS2119 Telenor Norge AS 5.23ms from Oslo, NO
151.70.249.192 AS1267 WIND TRE S.P.A. 9.88ms from Rome, IT
212.162.134.144 AS49505 JSC Selectel 0.97ms from Saint Petersburg, RU
72.175.166.224 AS33588 Charter Communications LLC 14.15ms from Seattle, US
210.242.62.128 AS3462 Data Communication Business Group 1.16ms from Taipei, TW
176.228.73.160 AS12400 Partner Communications Ltd. 1.60ms from Tel Aviv, IL
104.118.145.240 AS7713 PT Telekomunikasi Indonesia 5.67ms from Yogyakarta, ID
173.186.11.192 AS7029 Windstream Communications LLC 7.06ms from Atlanta, US
27.7.29.64 AS17488 Hathway IP Over Cable Internet 1.16ms from Bengaluru, IN
73.100.198.16 AS7922 Comcast Cable Communications, LLC 6.81ms from Boston, US
139.9.149.80 AS58519 Cloud Computing Corporation 0.76ms from Guiyang, CN
36.7.88.16 AS4134 CHINANET-BACKBONE 7.06ms from Huai'an, CN
90.90.13.64 AS3215 Orange S.A. 2.48ms from Paris, FR
24.72.153.128 AS23316 Bel Air Internet, LLC 0.66ms from Portland, US
180.172.234.96 AS4812 China Telecom (Group) 4.65ms from Shanghai, CN
179.110.40.208 AS27699 TELEFÔNICA BRASIL S.A 3.35ms from São Paulo, BR
197.200.243.112 AS36947 Telecom Algeria 12.04ms from Algiers, DZ
13.221.171.32 AS14618 Amazon.com, Inc. 0.80ms from Ashburn, US
59.182.225.176 AS9829 National Internet Backbone 10.66ms from Bengaluru, IN

Traceroute

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

$
traceroute -a -n -q1 -f2 -m5 138.243.153.233
traceroute to 138.243.153.233 (138.243.153.233): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Dublin, IE
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs