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Data as of Nov 9, 2026

203.12.144.0/21

No anonymizer space · no proxy exits in 30 days

Telstra Limited

Announcement
this exact prefix
RPKI valid
Announced by
AS1221
Type
Residential
Risk
0 / 100 · Low

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
203.12.144.0/212,048TELSTRAINTERNET-AUTelstra Limited (ORG-TC6-AP) · AUALLOCATED PORTABLE—abuse@telstra.net
└ 203.12.144.0/221,024TELSTRAGLOBALunknownALLOCATED NON-PORTABLE—abuse@telstra.net
└ 203.12.145.200/298CUST-6187682ForsythesASSIGNED NON-PORTABLE—abuse@telstra.net
└ 203.12.146.48/298CUST-6076483Ferrier HodgsonASSIGNED NON-PORTABLE—abuse@telstra.net
└ 203.12.146.120/298CUST-6089023Lake Macquarie City CouncilASSIGNED NON-PORTABLE—abuse@telstra.net
└ 203.12.146.240/298CUST-6088421Bimbadgen Estate Pty LtdASSIGNED NON-PORTABLE—abuse@telstra.net
└ 203.12.147.48/298CUST-6070715Koppers Carbon Materials & Chemicals Pty LtdASSIGNED NON-PORTABLE—abuse@telstra.net
└ 203.12.147.64/2732CUST-6175465Weathertex Pty LtdASSIGNED NON-PORTABLE—abuse@telstra.net
└ 203.12.147.96/2816CUST-6191206St Philips Christian CollegeASSIGNED NON-PORTABLE—abuse@telstra.net
└ 203.12.147.176/2816CUST-6212069HPA ContacMailASSIGNED NON-PORTABLE—abuse@telstra.net
└ 203.12.148.0/221,024TELSTRAGLOBALunknownALLOCATED NON-PORTABLE—abuse@telstra.net
└ 203.12.148.16/298CUST-6012393Maitland CouncilASSIGNED NON-PORTABLE—abuse@telstra.net
└ 203.12.150.176/298CUST-6074188McCloysASSIGNED NON-PORTABLE—abuse@telstra.net

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS1221

AU
Name
Telstra Limited
Type
Internet provider
Registered
Jan 31, 2000
Domain
telstra.com.au
Website
www.telstra.com.au/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed