% APNIC found the following authoritative answer from: whois.apnic.net

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

% Information related to '203.0.228.0 - 203.0.231.255'

% Abuse contact for '203.0.228.0 - 203.0.231.255' is 'dns@primaryhealthcare.com.au'

inetnum:        203.0.228.0 - 203.0.231.255
netname:        PRIMARYHEALTHCARE-AU
descr:          Primary Health Care
country:        AU
org:            ORG-PHC1-AP
admin-c:        PHC6-AP
tech-c:         PHC6-AP
abuse-c:        AP967-AP
status:         ASSIGNED PORTABLE
mnt-by:         APNIC-HM
mnt-routes:     MAINT-AP-PRIMARYHEALTH
mnt-irt:        IRT-PRIMARY-HEALTHCARE-AU
last-modified:  2020-08-04T13:12:41Z
source:         APNIC

irt:            IRT-PRIMARY-HEALTHCARE-AU
address:        Primary Health Care
address:        Level 4, 201 Pacific Hwy
address:        St Leonards
address:        NSW 2065
e-mail:         dns@primaryhealthcare.com.au
abuse-mailbox:  dns@primaryhealthcare.com.au
admin-c:        PHC6-AP
tech-c:         PHC6-AP
auth:           # Filtered
remarks:        dns@primaryhealthcare.com.au was validated on 2025-09-04
mnt-by:         MAINT-AP-PRIMARYHEALTH
last-modified:  2025-11-18T00:27:16Z
source:         APNIC

organisation:   ORG-PHC1-AP
org-name:       Primary Health Care
org-type:       LIR
country:        AU
address:        Level 6, 203 Pacific Hwy
phone:          +61-2-9432-9554
e-mail:         dns@primaryhealthcare.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:43Z
source:         APNIC

role:           ABUSE PRIMARYHEALTHCAREAU
country:        ZZ
address:        Primary Health Care
address:        Level 4, 201 Pacific Hwy
address:        St Leonards
address:        NSW 2065
phone:          +000000000
e-mail:         dns@primaryhealthcare.com.au
admin-c:        PHC6-AP
tech-c:         PHC6-AP
nic-hdl:        AP967-AP
remarks:        Generated from irt object IRT-PRIMARY-HEALTHCARE-AU
remarks:        dns@primaryhealthcare.com.au was validated on 2025-09-04
abuse-mailbox:  dns@primaryhealthcare.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-05T00:32:28Z
source:         APNIC

role:           Primary Health Care
address:        Primary Health Care
address:        Level , 201 Pacific Hwy St Leonards NSW 2065
country:        AU
phone:          +61-1300-300-430
e-mail:         IT.Infrastructure.Operations.Team@healius.com.au
admin-c:        RB79-AP
tech-c:         RB79-AP
nic-hdl:        PHC6-AP
mnt-by:         MAINT-AP-PRIMARYHEALTH
last-modified:  2020-01-30T21:20:13Z
source:         APNIC

% Information related to '203.0.230.0/24AS133787'

route:          203.0.230.0/24
origin:         AS133787
descr:          Primary Health Care
                Level 6, 203 Pacific Hwy
mnt-by:         MAINT-AP-PRIMARYHEALTH
last-modified:  2018-05-08T05:29:23Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.36-SNAPSHOT (WHOIS-AU5)