APNIC - Query the APNIC Whois Database

To assist you with debugging problems, this whois query was received from IP Address

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html
% Information related to '43.250.0.0 - 43.250.3.255'
% Abuse contact for '43.250.0.0 - 43.250.3.255' is 'xdr-abuse@microsoft.com'
inetnum:        43.250.0.0 - 43.250.3.255
netname:        APPNEXUS
descr:          AppNexus Singapore Pte. Ltd.
descr:          1 Fullerton Rd # 02-01
descr:          Suite 2099
country:        SG
org:            ORG-ASPL4-AP
admin-c:        AR399-AP
tech-c:         AR399-AP
abuse-c:        AA1808-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-APPNEXUS-SG
mnt-routes:     MAINT-APPNEXUS-SG
mnt-irt:        IRT-APPNEXUS-SG
last-modified:  2020-07-08T12:31:03Z
source:         APNIC
irt:            IRT-APPNEXUS-SG
address:        1 Fullerton Rd # 02-01, Suite 2099, Singapore Singapore 049213
e-mail:         xdr-pio-noc@microsoft.com
abuse-mailbox:  xdr-abuse@microsoft.com
admin-c:        AR399-AP
tech-c:         TR185-AP
auth:           # Filtered
remarks:        xdr-abuse@microsoft.com was validated on 2024-03-21
remarks:        xdr-pio-noc@microsoft.com was validated on 2024-04-17
mnt-by:         MAINT-APPNEXUS-SG
last-modified:  2024-04-17T19:47:30Z
source:         APNIC
organisation:   ORG-ASPL4-AP
org-name:       AppNexus Singapore Pte. Ltd.
org-type:       LIR
country:        SG
address:        1 Fullerton Rd # 02-01
address:        Suite 2099
phone:          +65 83009694
e-mail:         xdr-pio-noc@microsoft.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:14Z
source:         APNIC
role:           ABUSE APPNEXUSSG
address:        1 Fullerton Rd # 02-01, Suite 2099, Singapore Singapore 049213
country:        ZZ
phone:          +000000000
e-mail:         xdr-pio-noc@microsoft.com
admin-c:        AR399-AP
tech-c:         TR185-AP
nic-hdl:        AA1808-AP
remarks:        Generated from irt object IRT-APPNEXUS-SG
remarks:        xdr-abuse@microsoft.com was validated on 2024-03-21
remarks:        xdr-pio-noc@microsoft.com was validated on 2024-04-17
abuse-mailbox:  xdr-abuse@microsoft.com
mnt-by:         APNIC-ABUSE
last-modified:  2024-04-17T19:48:03Z
source:         APNIC
role:           admin role
address:        1 Fullerton Rd #02-01, Suite 2099, Singapore Singapore 049213
country:        SG
phone:          +1-212-380-9039
e-mail:         xdr-ipadmin@microsoft.com
admin-c:        AC1307-AP
tech-c:         AC1307-AP
nic-hdl:        AR399-AP
mnt-by:         MAINT-APPNEXUS-SG
last-modified:  2023-01-31T19:17:39Z
source:         APNIC
% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU1)
  • Bold: Object type.
  • Underlined: Primary key(s).
  • Hyperlinks: Searchable Attributes.
5 records found for '43.250.0.0'
Search for  
IP address lookups Miscellaneous queries
-l

1st level less specific

Returns smallest IP address range that includes the queried IP address or range

-i

Inverse attributes

Returns objects with an attribute that matches the query text and attribute type
-L

All less specific

Return all larger IP address ranges that include the queried IP address or range

-T

Object types

Results that match the query and are of a specified object type
-m

1st level more specific

Returns first level more specific address ranges within the boundaries of the queried IP address range
-M

All more specific

Returns all more specific address ranges within the boundaries of the queried IP address range

Query hints

  • Include "AS" in front of an AS number.
    Example: AS4808

  • Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template
    Example: -t inetnum

-x

Exact match only

Returns address range that exactly matches the queried IP address range
-d

Associated reverse domain

Returns IP address range and associated reverse domain

For more information see: