WHOIS

Lookup an IP or domain. Uses IANA referral first, then registry WHOIS.
Query
203.113.135.28
IANA
whois.iana.org
Referred
whois.apnic.net
WHOIS servers can rate limit. Results are cached for performance.
### IANA response (whois.iana.org)

% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object

refer:        whois.apnic.net

inetnum:      203.0.0.0 - 203.255.255.255
organisation: APNIC
status:       ALLOCATED

remarks:      203.0.113.0/24 reserved for TEST-NET-3 [RFC5737].
remarks:      Complete registration details for 203.0.113.0/24 are
remarks:      found iniana-ipv4-special-registry.

whois:        whois.apnic.net

changed:      1993-05
source:       IANA

### Registry response (whois.apnic.net)

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '203.113.135.0 - 203.113.135.255'

% Abuse contact for '203.113.135.0 - 203.113.135.255' is 'hm-changed@vnnic.vn'

inetnum:        203.113.135.0 - 203.113.135.255
netname:        Leasedlineservice-Net
country:        vn
descr:          Ip range for Leased line service in Hanoi
admin-c:        VIG4-AP
tech-c:         VIG4-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-VN-VIETEL
last-modified:  2008-09-04T07:22:05Z
source:         APNIC

role:           VIETEL IPADMIN GROUP
address:        No 1, Tran Huu Duc street, My Dinh 2 ward, Nam Tu Liem district, Ha Noi City
country:        VN
phone:          +84-4-62989898
e-mail:         soc@viettel.com.vn
remarks:        send spam and abuse report to soc@viettel.com.vn
admin-c:        TVT8-AP
tech-c:         NDT9-AP
nic-hdl:        VIG4-AP
mnt-by:         MAINT-VN-VIETEL
last-modified:  2017-11-12T03:43:03Z
source:         APNIC

% Information related to '203.113.135.0/24AS24086'

route:          203.113.135.0/24
descr:          VIETTEL-VN
origin:         AS24086
mnt-by:         MAINT-VN-VIETEL
last-modified:  2025-08-27T13:53:05Z
source:         APNIC

% Information related to '203.113.135.0/24AS38731'

route:          203.113.135.0/24
descr:          VIETTEL-VN
origin:         AS38731
mnt-by:         MAINT-VN-VIETEL
last-modified:  2025-08-27T13:58:46Z
source:         APNIC

% Information related to '203.113.135.0/24AS7552'

route:          203.113.135.0/24
descr:          VIETTEL-VN
origin:         AS7552
mnt-by:         MAINT-VN-VIETEL
last-modified:  2023-02-10T16:53:04Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)