[ IP ]
103.15.21.21
#329,934Top IPs · 1M scope1 domain1 open port
Overview
Top IPs list rank
- 1M
- #329,934(1 domains)
- Hosted domains (90 days)
- 1
- Hosted domains (all time)
- 1
- First seen
- Last seen
- PDNS hits (90 days)
- 3
- Country
- HK
- ASN
- AS45910
- Snapshot
- 1970-01-01
Network operated by 01Link Network Services Limited (IDC-01-HK).
List rank history
2 daily snapshots in the Top IPs list (1M scope). Lower rank numbers indicate more hosted domains in scope.
Whois — 103.15.21.21
- Netname
- IDC-01-HK
- Organization
- 01Link Network Services Limited
- Country
- HK
- ASN
- AS45910
Full whois record
% [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to '103.15.21.0 - 103.15.21.255' % Abuse contact for '103.15.21.0 - 103.15.21.255' is '[email protected]' inetnum: 103.15.21.0 - 103.15.21.255 netname: IDC-01-HK descr: 01Link Network Services Limited country: HK admin-c: NA296-AP tech-c: NA296-AP abuse-c: AI530-AP status: ALLOCATED NON-PORTABLE mnt-by: MAINT-HK-ISYSTEMTECH mnt-irt: IRT-ISYSTEMTECH-HK last-modified: 2022-04-14T01:56:48Z source: APNIC irt: IRT-ISYSTEMTECH-HK address: Tsuen Wan, Hong Kong e-mail: [email protected] abuse-mailbox: [email protected] admin-c: HM1244-AP tech-c: HM1244-AP auth: # Filtered remarks: [email protected] was validated on 2026-02-17 mnt-by: MAINT-HK-ISYSTEMTECH last-modified: 2026-02-17T13:51:20Z source: APNIC role: ABUSE ISYSTEMTECHHK country: ZZ address: Tsuen Wan, Hong Kong phone: +000000000 e-mail: [email protected] admin-c: HM1244-AP tech-c: HM1244-AP nic-hdl: AI530-AP remarks: Generated from irt object IRT-ISYSTEMTECH-HK remarks: [email protected] was validated on 2026-02-17 abuse-mailbox: [email protected] mnt-by: APNIC-ABUSE last-modified: 2026-02-17T13:51:48Z source: APNIC role: Network Administrator address: Hong Kong country: HK phone: +852-31065260 e-mail: [email protected] admin-c: NA296-AP tech-c: NA296-AP nic-hdl: NA296-AP mnt-by: MAINT-01LINK-HK last-modified: 2012-08-14T08:20:16Z source: APNIC % Information related to '103.15.21.0/24AS45910' route: 103.15.21.0/24 origin: AS45910 descr: 01Link Network Services Limited mnt-by: MAINT-HK-ISYSTEMTECH last-modified: 2022-04-13T23:52:01Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)
Open ports — 103.15.21.21
| Port | Service | Banner | Probed |
|---|---|---|---|
| http | HTTP/415 | Title: 415 Unsupported Media Type | 17d ago |
1 open port of 8 probed · last scan 17d ago. Probes run via TCP connect + banner grab.