RDAP / Whois lookup

Look up authoritative registration records for a domain, IP, network prefix or ASN. Subdomains are resolved to their registrable domain automatically.

103.23.72.0 - 103.23.72.255

Record foundAPNIC

NTT_Communications_CorporationALLOCATED NON-PORTABLE

RDAP is structured authoritative registration data. Registration records and contacts do not establish current routing, device location or network safety.

Queried at10/16/2026, 00:21:12Live registry lookup

BGP routes RPKI check Prefix profile

Resource type: Network prefix
Registry: APNIC
Registration country / region: Japan
Registration status: Active
Registered at: 9/6/2025, 06:19:16
Last changed: 9/2/2026, 05:43:07

Resource range103.23.72.0 – 103.23.72.255Network prefix

Resource records1CIDR count

Public contacts2Published by the registry

Registry events2Authoritative change record

Authoritative registration details

Registry handle: 103.23.72.0 - 103.23.72.255
Name: NTT_Communications_Corporation
Allocation type: ALLOCATED NON-PORTABLE
Parent handle: Not provided by registry
Whois server: whois.apnic.net
Authoritative RDAP host: rdap.apnic.net

Address and number range

Resource range: 103.23.72.0 – 103.23.72.255
Address family: IPv4
Resource records: 1
CIDR inventory: 103.23.72.0/24

Registration entities and contacts

Only public fields from the authoritative RDAP response are shown. Roles are assigned by the registry.

2 entities

Abuse

IRT-CIT-NET-JPIRT-CIT-NET-JP

support@ci-tec.net abuse@ci-tec.net

S-Biru-Surugadai 3F Kandaogawamachi 3-10 Chiyoda-ku Tokyo Japan 101-0052

TechnicalAdministrative

Kevin WangKW770-AP

abuse@worldfirstcomm.top+852-46768849

61 BRIDGE STREET KINGTON UNITED KINGDOM HR5 3DJ

Registration and change events

2 events

Event	Time (UTC)	Actor
Last changed	9/2/2026, 05:43:07	Not provided by registry
Registration	9/6/2025, 06:19:16	Not provided by registry

Terms and remarks

Registry notices are shown verbatim so their authoritative meaning is not altered.

5 notices

descriptionNTT Communications Corporation

remarksFor SPAM/Abuse issur : abuse@worldfirstcomm.top

SourceObjects returned came from source APNIC

Terms and ConditionsThis is the APNIC WHOIS Database query service. The objects are in RDAP format.

Whois Inaccuracy ReportingIf you see inaccuracies in the results, please visit:

CHA.LA authoritative RDAP snapshotIANA Bootstrap only locates the responsible registration service. Data comes from the corresponding RIR or domain registry and is cached locally by query target.Authoritative source: APNIC · rdap.apnic.net